less founded on correct data, was that, to obtain high velocities
in sea-going vessels, it was merely necessary to make them large;
it being argued that a mass of two or three thousand tons, once set
in motion at a given speed, would overcome the resistance both of
atmosphere and water with greater ease than a mass of half its weight.
Mr. I. K. Brunel carried these opinions to an extreme length, and
argued that there need be no limit to the size of a vessel, except what
tenacity of material must impose. He further argued, from scientific
theory and actual experience, that as the “tubular principle” provided
the greatest amount of strength of construction with any given
material, it, therefore, was possible to construct a ship of six times
the capacity of the largest vessel then afloat, and one, too, that
would steam at a speed hitherto unattainable by smaller vessels. Mr.
Brunel, having originated this conception, communicated it, at the
outset, to Mr. Scott Russell, and suggested the construction of a
steam-ship large enough to carry all the fuel she might require for
the longest voyage; and Mr. Scott Russell shared with Mr. Brunel in
the merit of contriving the best method of carrying out these views.
The idea of using two sets of engines and two propellers (screw and
paddle) is solely due to Mr. Brunel, as was, also, the adoption of a
cellular construction, like that at the top and bottom of the Britannia
Bridge, in building the _Great Eastern_, the name this huge ship was
now to bear.[415] These main characteristics distinguished the _Great
Eastern_ from all other vessels then afloat. Her model and general
structure were in other respects identical with those of the ships
built by Mr. Scott Russell, on the principle of the “wave line,” which
he had systematically carried out during the previous twenty years.[416]
[Sidenote: Plan of construction.]
Having obtained the requisite capital, the directors now concluded
provisional arrangements for the construction of the screw-engines with
Messrs. James Watt and Co., of the Soho Works, near Birmingham, and
for the paddle-engines and hull with Messrs. Scott Russell and Co., of
London. But, considering the novelty and magnitude of the undertaking,
it may be interesting and instructive to review, still further, the
grounds on which the projectors anticipated its success.
The ship, the directors said, “would be built in the Thames, to be
completed in eighteen months; and would fulfil certain conditions,
the most important of which was that she should not be obliged to
stop at any place on the way to take in coal, stoppages for coal not
only causing great delay by the time required for taking it on board,
but compelling the vessels to deviate widely from the best route, in
order to touch at the necessary coaling stations;” and, in avoiding
the delay of coaling on the voyage, the ships would also escape the
great cost of purchasing coals at a foreign station. “These ships,”
they added, “will carry, besides their whole amount of coals for
the voyage (out and home[417]), upwards of 5000 tons measurement of
merchandise, and will have 500 cabins for passengers of the highest
class, with ample space for troops and lower class passengers. These
the company will carry at rates much smaller than those of any existing
steam-ships and, moreover, with an unprecedented degree of safety,
comfort, and convenience which the great size of their vessels will
afford.” In thus increasing the size of their ships, the directors
said, “they believed they were also obtaining the elements of a
speed heretofore unknown: and if, hereafter, coals applicable to
the purposes of steam navigation could be supplied from the mines
of Australia, their carrying capacity both for cargo and passengers
would be proportionately increased. The great length of these ships
will undoubtedly, according to all present experience, enable them to
pass through the water at a velocity of 15 knots[418] an hour, with a
smaller power in proportion to their tonnage than ordinary vessels now
require to make 10 knots.”
[Sidenote: Mr. Atherton considers the views of the directors are not
supported by their data.]
These views were, however, not allowed to pass unquestioned by many
scientific men, and more especially by Mr. Atherton, who rejoined
that, whatever pride the projectors might reasonably feel in the
production of such an extraordinary vessel as the _Great Eastern_, the
data relied on by them did not support their anticipations. He argued
that, if based upon the performance of the _Rattler_, the size of the
vessel that would be required for the due fulfilment of the conditions
of the project, as announced by the directors, would, probably, be
not less than 100,000 tons displacement, and that the whole capital
of the company, as proposed in their prospectus would, probably, be
much more than absorbed in the construction of a single vessel of the
stupendous size indispensable for the performance of 25,000 nautical
miles, without recoaling, at the average speed of 15 nautical miles per
hour. As an engineer, Mr. Atherton was not opposed to the construction
of large ships, but he, like many other scientific and practical men,
questioned the fulfilment of the mechanical conditions as respects
the combination of a 15-knot speed with a 25,000-mile voyage without
recoaling, on which the Eastern Steam Navigation Company had founded
their project. Indeed, both practically and theoretically, he declared
himself in favour of the superior capabilities of large ships as
respected either speed or distance, but he forewarned the proprietors
of the _Great Eastern_ of the mercantile disappointment to which
extravagant expectations, as to the combination of high speed and great
length of voyage without recoaling, by the mere agency of size, would,
in his opinion, inevitably lead.
The directors might, therefore, have seen that extreme caution was
necessary for all mercantile steamship undertakings requiring the
maintenance of so high a rate of steaming speed as they contemplated.
Indeed, taking the actual results of the most successful steam-vessels
of that day, it was more reasonable to doubt the realization of the
hopes entertained by the projectors.[419]
[Sidenote: The _Great Eastern_ commenced, May 1, 1854.]
Nevertheless, the sanguine expectations of the directors were in no way
shaken and, under the advice and personal superintendence of Mr. I. K.
Brunel, Mr. Scott Russell commenced the arduous undertaking in his yard
at Millwall on the north side of the Thames.[420]
[Sidenote: Details of her dimensions.]
To prepare the ground for the reception of the enormous weight about
to be placed upon it, 1500 huge piles of timber were driven through the
loose surface soil into the more solid stratum below. These were girded
so as to form a platform bound together by transverse and longitudinal
balks of timber, between which thick beds of concrete were embedded,
and, on this structure, _iron_ rails were laid to form the launching
ways, of which the following is the longitudinal section.
[Illustration]
On this platform the first plates of the great ship, built entirely of
iron, were placed, May 1st, 1854.
[Sidenote: And mode of construction.]
The hull of the _Great Eastern_,[421] which is of immense strength, is
divided transversely into ten separate compartments of 60 feet each,
and rendered perfectly water-tight, in all its parts, by bulkheads
through which there is no opening, whatever, below the second deck:
two longitudinal walls of iron, 36 feet apart traverse 350 feet of the
length of the ship. Instead of the usual keel there is a flat plate
of iron in its place, about 2 feet wide and 1 inch thick, running
the entire length of the vessel from stem to stern, and so set up as
virtually to form part of the base on which all the rest of the fabric
is raised, whether of plates or girders. The bottom and sides which
ascend immediately from this keel plate are also 1 inch tapering to
three-quarters of an inch thick, the entire structure having been
raised from below by adding plate to plate upwards. These plates are
fastened together by more than 3,000,000 rivets, each an inch in
diameter, the whole being hammered in when at almost a white heat, and
welded so close as to form parts of the plates which they bind together.
[Illustration: TRANSVERSE SECTION.]
[Sidenote: Practically, one ship within another.]
From the keel to the water-line the hull is double, having an inner
and outer skin of the same thickness of iron, 2 feet 10 inches apart,
between which, at intervals of 6 feet, run horizontal webs of iron
plates thus materially increasing the power of resistance both of the
inner and outer skin. So far, therefore, as regards the portion of the
vessel immersed when laden, the _Great Eastern_ is, practically, two
ships, one within another, as may be seen by the transverse section,
page 498, which exhibits the principle of her construction.[422]
The danger of a collision at sea is, thereby, greatly lessened, for
if the outer skin is pierced, the inner one, remaining intact, as it
would, except under very extraordinary circumstances, the safety of the
vessel would not be endangered. Looking, also, at this arrangement in
a commercial point of view, should the ship require ballast, the space
between the outer and inner skin can be filled with water, so that
whatever may be necessary in this respect can be obtained in a very
economical and expeditious mode, to the extent in weight of 2500 tons.
[Sidenote: Compartments and bulkheads.]
Besides the principal bulkheads, there is in each compartment a second
intermediate bulkhead forming a coal bunker and carried up to the main
deck, which can on an emergency be closed. Two continuous tunnels run
through the principal bulkheads near the water-line in one of which
the steam pipes pass, and, under the most improbable circumstances
of damage to the ship, arrangements are made, so that facility and
ample time would be afforded to close them leisurely, and to make them
perfectly water-tight.
[Sidenote: Floor.]
The floor of the ship is perfectly flat, the keel being turned inwards,
and riveted to the inner skin. The bow and stern have additional
strength imparted to them by strong iron bulkheads specially fitted to
those parts of the ship.
[Sidenote: Construction of the iron plates for hull.]
Every distinct plate employed in the construction of the hull was
moulded, beforehand, to the exact shape required by the situation
it was to occupy. They were each gauged according to mathematical
principles, wooden moulds being first prepared from the gauges, and the
iron plates and angle iron accurately fashioned to correspond with the
moulds.
10,000 tons of iron plates were used in the construction of the hull,
or 30,000 plates (with about 100 rivets to each), each plate weighing
on an average a third of a ton.
[Sidenote: The deck, and its strength.]
The deck of the ship is double or cellular, and is formed of two
half-inch plates, at the bottom, and of two half-inch plates at the
top, between which are webs of iron which run the whole length of the
ship. The upper deck runs flush and clear from stem to stern for a
breadth of about 20 feet on either side of the skylights and hatchways,
thereby affording two magnificent promenades for the passengers just
within the bulwarks; these promenades are altogether more than the
eighth of a mile in length, as four turns up and down either side of
them exceed a mile by 640 feet. Between the two side promenades of the
upper deck are several quadrangular openings edged with low bulwarks,
and looking down into the recesses of the structure. These openings are
42 feet wide, and nearly 60 feet long, the longest being 100 feet, and
there are deck gangways connecting the side promenades between each of
them. In these spaces the skylights of the large passenger saloons are
fixed.
[Sidenote: Enormous steam-power from combination of paddle and screw.]
The distinguishing feature of the _Great Eastern_, in addition to her
vast size, is the combined application of both the paddle-wheel and the
screw. The engines are considerably larger than any previously made
for marine purposes. There are ten boilers and five funnels, and each
boiler can be cut off from its neighbour and used or not, as desired.
The boilers are placed longitudinally along the centre of the ship,
and are entirely independent of each other. Every paddle boiler has
ten furnaces, and each screw boiler twelve furnaces, thus giving to
the whole, the prodigious number of 112 furnaces. The funnels are each
about 100 feet in length measuring from the floor of the boilers to the
top of the funnel.
The paddle-wheel engines, of which the following is a transverse
section, are a magnificent piece of workmanship, combining vast
strength with great beauty and apparent lightness of design.
[Illustration]
When these, combined with the screw engines (to which reference
will presently be made), are at work the mind is lost in wonder at
the amount of mechanical power which is thus brought to play in the
propulsion of one vessel, and the smoothness and harmony with which
that duty is performed, in a space necessarily confined and limited,
and amid the violent turmoil of the ocean. No work of art ever yet
produced furnishes more exalted ideas of man’s genius and skill than
the unceasing and regular motion of these gigantic engines, especially,
when we consider the tremendous shocks to which they must be at times
subjected, and the delicate nature of some portion of the machinery,
resting as this does, not upon solid granite as is the case with land
engines, but on the ever straining ribs of a ship.
[Sidenote: Paddle-wheel,]
The paddle-wheel engines have a nominal power of 1000 horses, they have
four cylinders, the diameter of each being 74 inches, with a stroke
14 feet in length, giving 14 strokes per minute. Each cylinder with
piston and piston-rod weighs no less than 38 tons, while each pair of
cylinders with its crank, condenser, and air-pumps, forms in itself
a complete and separate engine, and each of the four cylinders is
so constructed that it can be, at once, disconnected when required,
from the other three, so that the whole forms a combination of four
engines, altogether complete in themselves, whether worked together or
separately. The two cranks are connected by a friction-clutch by means
of which the two pairs of engines can be connected or disconnected,
by a single movement of the hand and at a moment’s warning. All the
engines are provided with expansion valves, and their combined force,
when working 11 strokes per minute, indicates 3000 horse-power, with
steam in the boilers at 15 lbs. on the inch and the expansion valve
cutting off at one-third of the stroke. But as all the parts of the
engines are so formed and proportioned that they will work safely
and smoothly at 8 strokes per minute, with the steam at 25 lbs. and
fully open without expansion (beyond what is unavoidably effected
by the slides), or at 16 strokes per minute, with the steam in the
boiler at 25 lbs. and the expansion valve cutting off at one-fourth
of the stroke, they can be made to give a power of 5000 horses. The
paddle-shafts are each 38 feet long and weigh 30 tons, while the
intermediate cranked shaft, 21½ feet in length, weighs 31 tons.
[Sidenote: Auxiliary,]
Two auxiliary high pressure condensing engines are fixed, adjacent
to the paddle engines, for working the pumps and performing other
necessary duties on board of the ship; these auxiliary engines are
equal to 60 horse-power and can be worked to double that power if
necessary.
[Sidenote: and Screw engines.]
But the screw engines are even more surprising than those of the
paddles: they are also of 1000 horse-power with four oscillating
cylinders each 84 inches in diameter with 4-feet length of stroke
and performing 50 revolutions per minute. They can work up to 4500
horse-power with steam in the boiler at 15 lbs. and revolving at 45
strokes a minute, the expansion valve cutting off at one-third of the
stroke; but, with steam at 25 lbs., without expansion, and cutting
off at one-fourth of the stroke, they can propel with a power of
6000 horses, so that the combined force of paddle and screw engines
gives the tremendous power of 11,000 horses! The propeller shaft,
in two parts, is 160 feet in length and weighs 60 tons, while the
screw-propeller itself is 24 feet in diameter with 44 feet pitch. The
paddle-wheels are, however, still more stupendous, being no less than
58 feet in diameter with a boss which alone weighs 16 tons, each wheel
when complete weighing 90 tons.
Abaft the bulkhead of the screw engine-room are placed two auxiliary
engines of 20 horse-power each for moving the screw-propeller, when the
larger engines are disconnected, at such a velocity as will prevent the
speed of the vessel from being retarded when the ship is under weigh
with paddles alone, or when under sails and paddles.
There are, also, two auxiliary high pressure engines, each of the
nominal power of 10 horses, for working the pumps, shafting, or
other parts of the machinery, and for hoisting sails, taking in or
discharging cargo, lifting the anchor, and for performing many other
services usually carried on by the crew.
[Sidenote: Donkey-engines.]
Each set of boilers is provided with donkey-engines, with independent
boilers, and pumps of power sufficient to feed both sets of boilers,
and are capable of being connected or disconnected, so that one
donkey-engine may supply any set of boilers. These are each of about 10
horse-power.
[Sidenote: Proposed accommodation for passengers, &c.]
This mighty vessel was destined to afford accommodation for 4000
passengers, viz., 800 first class 2000 second class, and 1200 third
class, independently of the ship’s complement of crew, amounting to
about 400. The series of saloons, which were elegantly fitted and
furnished, together with the sleeping apartments (as will be seen by
referring to the longitudinal section in the frontispiece to this
volume) are situated in the middle of the ship and extend over 350
feet of her length.
[Sidenote: View of deck, &c.]
As everything about this vast ship is really of historical interest,
I present my readers (see frontispiece) with a view of her deck as
seen from the bridge between the paddle-wheels, looking towards
the stern, a sight which affords a more imposing appearance of her
magnitude than any other view. The first skylight covers the passage
to the engine-room and the captain’s cabin, which is in itself a
moderate-sized house, consisting of several rooms; behind it there are
other two companions or staircases leading to the after saloons. As the
old-fashioned speaking trumpet would be useless in such a ship, the
captain signals his orders either from his cabin or from the bridge by
semaphore arms during the day and by coloured lamps at night; while
electric telegrams convey his wishes, not merely to the engine-rooms,
but to other places below the decks where it may be necessary that his
instructions should be instantaneously communicated. With regard to the
main or upper deck itself, there is ample clear space to drill a full
regiment of soldiers.
[Illustration: GRAND SALOON OF THE “GREAT EASTERN.”]
[Sidenote: Saloon.]
The lofty saloons and cabins are very imposing, differing as they
do in most respects from those of ordinary passenger steam-ships,
indeed, more resembling the drawing-rooms of the mansions of Belgravia
of London or of the Fifth Avenue of New York. The one of which an
illustration is furnished (page 506) bears the name of the “Grand
Saloon.” The illustration, however, shows only one half of this
magnificent apartment, which is 62 feet long, 36 feet in width, and 12
feet in height, with a ladies’ cabin, or rather boudoir, adjoining,
20 feet in length. Massive looking-glasses in highly ornamented gilt
frames decorate its sides; the strong iron joists (beams) overhead are
encased in wood, the mouldings being delicately painted and enriched
with gilt beading. Around two of the funnels which pass through this
gorgeous apartment are large mirrors, with alternate highly ornamented
panels, and at their base are groupings of velvet couches. The columns
(staunchions) which support the beams are richly decorated, while
the iron work of the railings of the staircases leading to the lower
cabins, or surrounding the open spaces necessary for more perfect
ventilation, are, by some particular process, made to resemble oxidized
silver, which is relieved by gilding. The walls (sides) are hung with
rich patterns in raised gold and white, and at the angles are arabesque
panels ornamented with groups of children and various emblems of the
sea; other illustrations personify, in graceful forms, the arts and
sciences connected with the construction and navigation of ships, while
sofas covered with Utrecht velvet, buffets of richly carved walnut
wood, carpets of surpassing softness, and _portières_ of rich crimson
silk to all the doorways, give an elegance to the whole, combined with
a display of taste and beauty far surpassing, and an extravagance
almost equalling, the gigantic toy ships of ancient monarchs.[423] Nor
are the dining-rooms and family cabins much inferior in style, while
the bed-rooms, in space, fittings, and comfort are all that the most
fastidious voyager could expect, if not all they would desire.
[Sidenote: Intended to carry twenty large boats and two steamers.]
The _Great Eastern_ was planned to carry twenty large boats on her deck
or hanging from the davits. Some of these boats are patents on very
ingenious principles. In addition, it was intended she should carry,
suspended abaft her paddle-boxes, two small steamers, each 100 feet
long and of between 60 and 70 tons burden. These were to be raised or
lowered by small auxiliary engines and kept in all respects completely
equipped for sea, but to be principally used for embarking or landing
the passengers with their luggage.
[Sidenote: Compasses.]
The compasses were placed at a height of 24 feet from the deck on
a staging, in order to remove them from the disturbing influences
inherent in the vast masses of iron below; and it was proposed that
strong shadows of the needle should be cast down a tube so that the
steersman might by watching the shadow of the points at once follow the
movements of the compasses above.
[Sidenote: Size of sails.]
Besides the mizen-mast, which is of wood, there are five other masts of
hollow wrought iron. Two of these carry large square sails, the others
fore and aft sails, the fore-mast having a jib as well as trysail,
there being neither bowsprit nor jibboom. The standing rigging consists
of iron wire rope, and the lower mast shrouds of this material are 8½
inches in circumference. The running gear, manufactured chiefly from
Manilla hemp, is beautifully made. Instead of the ordinary dead-eyes
and lanyards, an ingenious contrivance has been devised for letting go
the shrouds instantaneously on an emergency. When under full sail the
_Great Eastern_ will spread 6500 square yards of canvas.
[Sidenote: Magnetic apparatus of Mr. J. Gray.]
The magnetic apparatus or floating compass invented and patented by
Mr. John Gray, of Liverpool, is to the navigator, perhaps not the
least interesting instrument of the great ship. The binnacle consists
of an isolated battery of magnets adjusted by vertical screws, which
move them in proportion to the deviation of the compass arising from
the influence of the iron used in the construction or equipment of
the ship. The original error having been ascertained by careful
observations (a duty invariably devolving on the makers of the
instrument) and the compass thus adjusted and regulated, the process of
readjustment, when necessary, is so simple that, by the officer of the
ship merely placing her head in two positions—north and south, east
and west—the compass in the northern hemisphere can be made perfect.
If any alteration takes place in the ship’s magnetism of an opposite
character in the southern hemisphere, by reversing the position of
the magnet and by adopting the same process, the instruments will be
found as correct as in the northern. There are other applications
all calculated with the utmost precision for navigating the ship,
one of which is highly important, in that it corrects the dangerous
influence arising from heeling. A vertical magnet is made moveable in
the centre of the apparatus so as to obviate errors arising from this
cause,—errors sometimes amounting, by the deflection of the needle,
to 50 or even a greater number of degrees. As these disturbances
produce considerable oscillating of the card when the vessel rolls,
their repetition often causes a momentum that ultimately makes the card
revolve with such velocity as to render it useless to the helmsman.
The patent floating compass, constructed to prevent vibration from
affecting the centres of action, consists of an inner bowl floating in
an outer one, the object being to render the former insulated in its
water bed, the exterior being solely influenced by the action of the
ship. Through a very ingenious mechanical arrangement in the interior
of the inner bowl the hardest gems and the finest centres may be
applied without fear of oscillation of the card. The entire combination
of these essential points insures steadiness of action, perfect
indication, and great durability.
There is also a vertical double disk to register the ship’s course
and to show whether the man at the helm has attended strictly to his
instructions with regard to the course to be steered. On each side
of the binnacle there is a metal box containing soft iron for the
adjustment of any small amount of deviation in the quadrants, which
remains stationary with its contents throughout every change of
latitude.
[Sidenote: Apparatus for steering.]
Nor must I omit notice of the mode of directing the course of the
ship. On one side of the platform between the casements of the
paddle-wheels (the deck most in use by the commander and officers of
all steam-ships), stands an ingenious apparatus, in which there is a
compass, the duplicate of the one in the binnacle, and before it an
officer stands when the ship is under weigh, who is under the immediate
eye of the captain. This pedestal is covered with a brass circular
slide, with an aperture sufficiently large to permit of one of the
points on the card being seen through it. The captain or officer in
charge of the ship, by turning a handle, exposes the point at which
he wishes the ship’s head to be kept, and by means of connecting rods
a coincident point is disclosed on the compass in the binnacle, which
is watched by the steersman, who thus knows in a moment the course he
has to steer, so that, without verbal orders (which are frequently
indistinctly heard and sometimes misunderstood, even when the officer
is close to the helm) the ship is directed on her course with more ease
than an ordinary sized vessel.
Beyond the original plan contemplated of manufacturing gas on board to
be laid on to all parts of the ship, it was further intended to carry
the electric light so as to secure a perpetual artificial moonlight
around the vessel.
[Sidenote: Rudder and anchors.]
The rudder[424] is constructed of two plate-iron cheeks framed together
on a wrought-iron rudder-post, tapering from 14 inches diameter
downwards, the frame being 9 feet wide from back to belly. The space
between the 2 plate-iron cheeks within the rudder-frame is filled with
solid blocks of wood, bound together and bolted through the plates,
combining great strength with lightness.
There are ten anchors on board which, with their stocks, weigh 55 tons,
and 800 fathoms of chain cable weighing 98 tons, the capstan and warps
weighing 100 tons, so that there are 253 tons weight of appliances on
board devoted exclusively to the purpose of anchoring or mooring the
great ship. Through the centre of her stem there are two hawse-holes
each 18 inches in diameter, so that the large cable runs straight out
from the stem; and, besides these, there are additional hawse-holes on
each side of the cutwater.
[Sidenote: The ship itself a marvel though, commercially, a failure.]
Such is or, rather, was the _Great Eastern_ in all the leading features
of her construction and equipment, and, however fallacious many of
the calculations of the directors and designers may have proved, (and
none were more so than those referring to the project as a commercial
undertaking),[425] they and the constructors have produced a ship
which is not merely a marvel in size, but, in beauty of symmetry,
strength of hull, completeness of machinery, organization, and
arrangement of details, equals, if she does not surpass, any vessel
that has yet been constructed for ocean navigation.
It is to be regretted that the plans for launching the monster were
not (for the credit of science and the great mechanical knowledge of
the age) as perfect as the ship herself. Instead of constructing a
dock, wherein she could have been built with less labour than upon
piles, and which would have been valuable as a graving-dock when she
was floated from it, they built her in a yard, and, contrary to the
established custom, built her broadside to the element into which she
had ultimately to be launched.
[Sidenote: Preparations for, and details of, the launching of the
_Great Eastern_.]
The apparatus for launching the ship consisted of two inclined planes,
each about 200 feet long by 80 feet broad, and nearly 140 feet apart,
falling at an inclination of one in fourteen, to low-water mark. On
these ways two cradles, each 80 feet square, were destined to slide,
the object being that the great ship should be moved sideways into the
river on two massive platforms, underlaid with transverse bars of hard
iron, and corresponding in length to the width of the launching ways
upon which they rested.
The cradles were provided with two enormous chains, with crab blocks
and tackle, the standing part fastened to the further bank of the
river and the ends carried through two portholes, and under the ship’s
bottom. Two small steam-engines in the yard worked the crabs and
blocks attached to the chains whereby the ship was, if necessary,
to be dragged down the launching ways, which were prepared with an
anti-attrition composition to facilitate the movement of the enormous
mass. Besides these powerful tackles, there were two hydraulic presses,
each of one thousand tons lifting power, placed behind the cradles,
to which they could be applied to set the vessel in motion should the
engines prove inadequate for that purpose.
But, in order to regulate the descent of the vessel, and check her
progress, should it become too rapid, two immense friction drums or
capstans were constructed, and fastened firmly by means of piles into
the earth, so as to resist any possible strain that might be placed
upon them. These drums, seven feet diameter in the barrel by twenty
feet in length, were furnished with iron cables, each link of which
weighed seventy pounds, attached by a double purchase to the cradle,
and regulated by two gigantic break-levers worked by blocks and
pulleys, a gang of men being at hand ready to apply instantaneously on
receipt of signal this powerful check to the momentum of the vessel
should it be found too great.
Such were the vast preparations made to launch the _Great Eastern_.
FOOTNOTES:
[412] See Appendix to Report of Committee, 1851.
[413] See Report of 6th August, published in the _Times_, 8th August,
1853.
[414] Author of important works on “The Construction of the
Steam-engine,” and “The Capability of Steam-ships.”
[415] As every important fact connected with the design and
construction of this vast ship must prove of historical interest, I
think it desirable to give an extract from the letter which Mr. Scott
Russell himself wrote at the time on the subject, addressed to the
editor of the _Times_, and which appeared in that journal on the 20th
April, 1857:
“My share,” says Mr. Scott Russell, “of the merit and responsibility
is that of builder of the ship for the Eastern Steam Navigation
Company. I designed her lines and constructed the iron hull of the
ship, and am responsible for her merits or defects as a piece of naval
architecture. I am equally responsible for the paddle-wheel engines of
1000 horse-power, by which she is to be propelled.
“But Messrs. James Watt and Co., the eminent engineers of Soho, have
the entire merit of the design and construction of the engines of 1500
horse-power, which are to propel the screw.
“It is to the company’s engineer, Mr. I. K. Brunel, that the original
conception is due of building a steam-ship large enough to carry coals
sufficient for full steaming on the longest voyage. He, at the outset,
and long before it had assumed a mercantile form, communicated his
views to me, and I have participated in the contrivance of the best
means to carry them into practical effect. I think, further, that the
idea of using two sets of engines and two propellers is original,
and was his invention. It was his idea also to introduce a cellular
construction like that at the top and bottom of the Britannia Bridge
into the construction of the great ship. It will be seen that these are
the main characteristics which distinguish this from other ships, and
these are Mr. Brunel’s. Her lines and her structure in other respects
are identical with those of my other ships, which are constructed like
this on a principle of my own, which I have systematically carried out
during the last twenty years, and which is commonly called the ‘wave’
principle. In other respects, also, her materials are put together in
the manner usual in my other ships.”
[416] See article in the ‘Encyclopædia Britannica,’ 7th edition, on
“Steam Navigation.”
[417] Whatever may be gained by not requiring to stop at any
intermediate port, I consider it a mistake, in a commercial point of
view, to suppose any advantage is to be derived from taking on board
a steam-ship, especially when engaged on distant voyages, sufficient
coal to carry her out and home. The space the coals occupy in a steamer
ought to be of more value, for the reception of cargo, than the cost of
sending coals in sailing-vessels to the ports abroad where required,
and than any loss sustained by the expense and detention of shipping
them there.
[418] Equal to 17¼ statute miles.
[419] I need not dwell upon these points, for which see _Times_, 28th
February, 1854, and Mr. C. Atherton’s note, 20th April of that year.
[420] The precise dimensions of the _Great Eastern_ will be found with the
Frontispiece illustrations.
[421] I take the description of the vessel and everything relating to
her from Mr. Scott Russell’s “_Great Eastern_ Steam-ship,” H. S. Clarke
and Co., Strand, London, 1857, the public journals of the period, the
reports of the directors, and from my own observations at the time,
as I more than once inspected the ship, when on the stocks and when
afloat, for which every facility was afforded by her builders.
[422] The following references will serve more fully to explain the
illustration of the transverse section of the hull of the _Great
Eastern_: 1, upper saloon or main deck; 2, principal saloon in lower
deck; 3, side cabins and berths; 4, tunnels for steam and water
pipes; 5, boiler; 6, coal bunkers; 7, space between skins of ship; 8,
skylights to principal saloons; 9, double deck.
[423] The decorations of this saloon, which were exceedingly beautiful,
were executed by Messrs. Crace, of Wigmore Street, London.
[424] As I have been frequently asked when the “rudder” was invented, I
may here state that I really do not know, and I should be disposed to
question the accuracy of any writer who fixed any epoch or any age for
its invention. Before me I see, at this moment, a swan in pursuit of
other swans which have evidently been poaching upon its manor on that
portion of the River Thames where, on its banks, I now revise the proof
sheets of this volume. It is in full chase, with its wings so arranged
as best to gain advantage from the breeze; its feet are paddling it
onward with great vigour, but to turn the corner opposite to where
I sit, I see that the swan sweeps itself round by the operation of
one of its feet, which has been brought close to the surface, and is
performing exactly the same part, only in a more rapid and perfect
manner, which the rudder, attached to a boat, performs, when sweeping
round the same bend of the river. Perfect rudders may, therefore, be
said to have existed from the creation, for nothing could be more
complete in the shape of a rudder, than this action of the swan’s foot
in the water. A similar action may be seen in the fins and tails of
fish.
Turning to mechanical contrivances which had this object in view, it
will be found that, during the earliest historic ages, the paddle of
the canoe was used, not merely to propel, as in the case of the gondola
of the middle ages as well as in the gondola of to-day, but also to
guide, and was, in itself, one of the most powerful mechanical rudders
which have yet been produced. The oar over the quarter followed, and
if my readers will refer to the sculptured illustration of a vessel on
the leaning Tower of Pisa (see _ante_, vol. i. p. 521) erected A.D.
1178, they will find, that that was the only description of a rudder
represented at that comparatively recent period. At a later period,
by referring to the contracts still extant which Louis IX., King of
France, entered into, A.D. 1268, with the Venetians and Genoese for the
construction of various ships (_ante_, vol. i. p. 510), “two rudders”
for each vessel (_one on each side_) “nine palms long” are required to
be provided, showing that this mode of steering, which is no advance
upon what may be found on the ancient sculptures of Egypt, was, then,
the only one known, or at least in use, among the most celebrated
navigators of the middle ages; and from their dimensions, the vessels
which Louis IX. ordered to be built were large ships, _not boats_,
which the one represented on the Tower of Pisa may have been.
In the drawings of some vessels of a subsequent period, a hole is
shown in the stern above the stern post, through which an oar, sweep
or “rudder” was passed for guiding the course of the vessel, its lower
extremity being probably worked by tackles from each quarter; from
this appliance the _hanging_ rudder now in use no doubt originated,
being improved on by slow degrees, and gradually assuming a more and
more perpendicular position; thence, the transition to hanging it by a
second ligature was easy and natural; thence, the gudgeons and pintals,
by which the rudder now swings from the stern post; and, hence, the
tiller and, subsequently, the wheel to move the tiller, the blade
of the rudder itself being increased in size according to the force
required to turn the vessel. Thus, the foot of aquatic birds first gave
the idea of the paddle, and this, in time, was displaced by the oar,
from which the rudder evidently sprung. The Dutch and German word for
oar is now and always has been “Ruder.”
[425] In the summer of 1857, the late Robert Stephenson and I paid a
visit to the ship. We were accompanied by Brunel. The hull was then
drawing towards completion, and preparations for launching were about
to be commenced. After thoroughly inspecting everything about the
vessel, Brunel asked me what I thought of her. “Well,” I replied, “she
is the strongest and best built ship I ever saw and she is really a
marvellous piece of mechanism.” “Oh,” he said, rather testily and
abruptly, “I did not want your opinion about her build. I should think
I know rather more about how an iron ship should be put together than
you do. _How will she pay?_”
“Ah,” I replied, “that is quite a different matter;” and, seeing that
I did not care to answer his question, he repeated it, adding, “If she
belonged to you in what trade would you place her?” “Turn her into a
show,” I said, with a laugh, “something attractive to the masses; for,
if you insist on having my opinion about her commercial capabilities,
it is only in that direction where you can look for profit. She
will never pay as a ship. Send her to Brighton, dig out a hole in
the beach and bed her stern in it, and if well set she would make a
substantial _pier_ and her deck a splendid promenade; her hold would
make magnificent salt-water baths and her ’tween decks a grand hotel,
with restaurant, smoking and dancing saloons, and I know not what all.
She would be a marvellous attraction for the cockneys, who would flock
to her in thousands.” And, as I saw he was far from pleased with my
answer—no wonder—though given half in joke and half in earnest, I
added, “As you would insist on having my opinion, I have given it to
you candidly, for I really do not know any other trade, at present,
in which she will be likely to pay so well.” Stephenson laughed, but
Brunel never forgave me.
CHAPTER XIV.
Commencement of launch of the _Great Eastern_, November 3rd,
1857—Christened by Miss Hope—Comparative failure—Renewed
efforts scarcely more successful—Hydraulic ram bursts—Floats
of her own accord, January 31st, 1858—The whole scheme of this
launch a thorough mistake—Difficulties of the company—Offer
to Government wisely declined—Further proposal to employ her
as a cable layer—Makes her first sea trip, September 9th,
1859—Accident off Hastings, and the opinion of the pilot—Reaches
Holyhead; and details of her voyage—Makes her first voyage
across the Atlantic, June 1860—Second voyage, May 1861—Third
voyage to Quebec, July 1861—Fourth voyage, September 1861—Heavy
gale off S.W. coast of Ireland, and compelled to return to
Cork—General remarks on the sea-going qualities of different
ships, and on the effect of wind in causing “rollers”—Real
truth about “momentum”—Very large ships not so safe as smaller
ones, as their damages are less easily repaired—Chief later use
of the _Great Eastern_ as a cable layer, but, not even here,
remunerative—Concluding remarks.
[Sidenote: Commencement of launch of the _Great Eastern_, November 3rd,
1857.]
After various unavoidable delays rendered necessary by such an
unexampled experiment, the day for the launching of the _Great Eastern_
was fixed for the 3rd of November, 1857.
A vast concourse of people assembled on land and river to witness the
launch. Crowds of naval and scientific men from all parts of the world
were there, and, in spite of the inclement season of the year, numerous
members of the aristocracy came to see this marvellous feat; nor indeed
was royalty, itself, unrepresented. Probably no such multitude had on
any previous occasion congregated on the banks of the Thames. It was a
magnificent sight, but one, also, the practised eye could not survey
without apprehension of danger. The preparations for her launch were,
it is true, made with the object of lowering the vessel slowly into
the water by means of cradles erected on the launching ways, but if
the huge mass had received the impetus which in all similar cases is
given to vessels when the retaining and supporting shores are removed,
the cables, though of unusual strength, would have proved altogether
insufficient to restrain so ponderous a weight when once in motion;
they must have snapped asunder like hempen cords, and, considering the
number of small boats and steamers full of people at the time on the
river, and the crowds on its banks, no one can contemplate without a
shudder the loss of life which, under such circumstances, would have
probably occurred.
By reference to the following illustration the reader will better
understand the nature of the danger apprehended, and, also, see at a
glance the position of the great ship as she lay on the cradles ready
for launching.
[Illustration]
[Sidenote: Christened by Miss Hope.]
The ceremony of christening the vessel was performed by Miss Hope (now
Duchess of Newcastle), daughter of the Chairman of the Great Eastern
Steam Navigation Company. When the moment for launching arrived, the
interest of the vast assembly of people who had gathered together to
witness the operation became intense, increasing as the shores were one
by one struck from under her and the last cable fastenings loosened.
But the leviathan did not seem to move, and it was, only, when the
stationary engines tightened the chains which passed from the vessel to
the opposite shore, that any motion became perceptible. A tremendous
cheer then burst from the excited multitude. Immediately afterwards,
however, there was a pause: silent suspense again prevailed, with
increased anxiety blended now with evil forebodings. A whisper passed
along the dense crowd that the slide down the inclined plane of 3½ feet
at the stem and 7 feet at the stern thus effected, was of an alarming
character. It was one, too, which had not been anticipated; and, when
it became known that the rapid revolution of the drum and fly-wheels
caused by the sudden motion of the vessel had seriously injured several
of the men employed upon these ponderous machines, there were grave
apprehensions of further danger.
[Sidenote: Comparative failure.]
Some delay in the operations now necessarily occurred, but, at a
quarter past three P.M., the time of high water, when the engines were
again set to work, expectation was once more raised to the highest
pitch. Every eye was now directed towards the cradles, but this time
they did not stir an inch, and, as the chains tightened it became too
apparent that if the vessel was not forced towards the water they must
break. At length, subjected to a strain greater than ought to have
been applied, the ponderous chain attached to the fore part of the
vessel snapped asunder, and then all hopes of launching the leviathan
were ended for that day. It would be superfluous to dwell on the many
speculations as to the cause of this failure; certain it is that it was
great and lamentable, and, as it was impossible to repair the injury
the launching machinery had sustained, in time for further operations
on the following day, no time was, then, fixed for resuming action.
However, on the 19th of November, these operations were again begun,
the alleged object on this occasion being to move the great ship 40
feet lower down than the position she then occupied, so as to be ready
for launching when the tide suited; but this effort equally proved
abortive. The immediate cause of this second failure is accounted for
by the abutments of the piles, against which the bases of the hydraulic
rams rested, yielding under the enormous pressure exerted between
them and the ship’s cradle, in many cases giving way or breaking down
altogether.
[Sidenote: Renewed efforts scarcely more successful.]
Most of the subsequent operations of the company were kept as far as
possible secret, and the presence of the public, which had been courted
to witness an anticipated triumph, was now as studiously avoided, under
the prudential plea of avoiding accidents, involving loss of life,
by the too rapid motion of the ship towards the river. But a fresh
experiment, after prodigious efforts, and the snapping of one of the
3-inch chains, proving likewise unsuccessful, the report of it soon got
mooted abroad, and the public, always fluctuating between extremes,
now began to entertain serious doubts whether the _Great Eastern_
would ever get afloat.
[Sidenote: Hydraulic ram bursts.]
A third attempt, on Saturday, November 28th, proved however more
successful than the previous efforts. On this occasion the _Great
Eastern_ was gradually lowered down the launching ways some 25 feet in
a slow but satisfactory manner; while, on the 1st December, when the
tedious process of moving the gigantic structure was recommenced, she
moved steadily, for a time, at the rate of half an inch a minute, but,
suddenly, soon after slipped 5 inches forward and 9 inches aft, to the
terror of every person engaged in the operation; and, when renewed
efforts were made in the course of the afternoon, one of the ten-inch
hydraulic rams burst, as might have been anticipated, under the
tremendous pressure of 1300 pounds to the square inch of its cylinder:
consequently, the work of launching was suspended for that day.
Six weeks elapsed ere the operations were resumed, and, this time,
with the most sanguine hope on the part of Mr. Brunel that the great
ship would reach her destination by the spring tides of the 28th or
30th of January, 1858. On this occasion the plans could not be kept
secret. Crowds of people were again in attendance, among whom were the
Duchess d’Orleans, the Comte de Paris, and various other distinguished
personages, as well as many men of science. The _Great Eastern_ was,
indeed, not merely the wonder of this age, but she created more
sensation among men of scientific and maritime pursuits in all parts
of the world than any vessel had ever done in any age. Nor was she an
object of much less interest at the time to the general public, while
the difficulties of her launch and the appliances for this purpose
were freely discussed, often in no friendly spirit, at the meetings
of the learned institutions, as well as in the gay gatherings of
Belgravia, and in the more humble homes and workshops of Mile End and
Poplar. The subject was one of hardly less interest throughout Europe
and the United States. But shrewd practical men, while envying the
superabundant wealth of the shareholders, and admiring their boldness
in investing in her as a commercial undertaking with so questionable
a chance of profit, quietly sneered at the futile attempts to launch
the leviathan. Though of unusual weight and size, they said, that had
the ordinary process been adopted, she would have found her way to the
water with as much ease and safety as a vessel of ordinary dimensions.
There was no need, they remarked, to launch her broadway to the Thames,
as, in their opinion, she might have been so built that when started
from her ways she would shoot either up or down the river, as hundreds
of vessels launched from the banks of much narrower streams had done
before her.
[Sidenote: Floats of her own accord, January 31st, 1858.]
However, on this occasion, the efforts at launching were so far
attended with success, an average advance of 20 feet having been
obtained in the course of the day, so that when the tide reached its
height, the monster was 7½ feet in the water; but the only distance
accomplished on the following day, was one solitary slip of “2½
inches,” and in this state she lay until Tuesday, the 31st January,
when the great ship quietly floated of her own accord, the tide having
risen sufficiently high to lift her from the cradles on which she had
so long lain.
[Sidenote: The whole scheme of this launch a thorough mistake.]
The struggle of hydraulic power with the monster the company had
created, and other appliances proved most expensive, the launch of
this ship having cost no less than 120,000_l._ when 10,000_l._ or even
5000_l._, it was said, might have sufficed;[426] nor, indeed, is it
easy to understand how, with all the data before them, the tons weight
to be lifted, the angle of inclination, and the well-known rate of
friction, dynamic science could not have calculated with the utmost
accuracy the amount of force requisite to move the _Great Eastern_
on her launching ways. No adequate consideration, however, seems to
have been given to these important matters, for additions were made,
day by day, to the force applied, and these, too, experimentally, and
not, as might have been expected, as the result of careful, previous
calculations. No doubt the chief cause of this expensive failure is
attributable to the fact that Mr. Brunel (it was well known at the time
that Mr. Scott Russell strongly opposed Mr. Brunel’s plan of launching)
was permitted to try the almost insane experiment of launching the
ship on iron instead of wooden ways, as has, hitherto, invariably been
adopted in the launch of all other vessels.
The expenses attending the launch exhausted the funds of the _Great
Eastern_ Company; and brought it to the brink of dissolution. Nor was
this the only trouble to which the _Great Eastern_ was exposed. On
the 5th of April, 1858, a sharp north-easterly squall, which swept the
river with considerable violence, subjected her moorings to a strain
so severe, that one of the chain cables on the port-bow parted about
20 feet below the hawse-hole, and for a time exposed the vessel to
great danger; fortunately, however, this unfair weight snapped, also,
the second stern-chain, and thus allowed the vessel’s bows to swing in
towards the Deptford shore, thereby saving the _Great Eastern_ from
more serious loss.
[Sidenote: Difficulties of the Company.]
[Sidenote: Offer to Government wisely declined.]
The difficulties, however, in which the company were involved had now
become a matter of public notoriety; the more so, that the vessel
remained for more than a year equally unfinished as on the day she
launched herself, and was in fact nothing more than a vast iron hulk
lying on the waters of the Thames. Ineffectual efforts were made to
induce the public to come forward and subscribe the extra capital
requisite to complete her, but the launch, and other circumstances,
had increased the doubts long entertained by men of business with
regard to the prospects of the ship, as a commercial undertaking;
hence, the public could not be induced to re-invigorate the exchequer
of the company with sufficient money to equip her for sea. The various
suggestions made to persuade the shareholders of the company to come
forward with additional capital, were of no avail and they all, alike,
failed in raising the requisite funds. A negotiation was even opened
with the Government with a view to the purchase of the vessel, the
press, all at once, teeming with articles to the effect that, whether
important or not as a mercantile adventure, the great ship, as a
vessel of war, would be “almost invaluable.”[427] This discovery, it is
true, had been previously overlooked, but it soon became the theme of
general discussion.
The difficulties of the existing means of oceanic communication it was
said, compelled Government to maintain larger forces at all points
of the empire, and at the same time, than were actually requisite;
consequently, it was argued that, with two or three such stupendous
vessels as the _Great Eastern_, such a necessity would be obviated,
and Government would really have increased strength, even though her
present military establishments were greatly reduced. It was, further,
urged that continental nations were well aware that the secret of
England’s weakness, as a military power, is not so much from the
smallness as from the wide dispersion of her army. Once shown that
means exist for obviating this necessity, and that she is able, in a
few days, to transport an army of 10,000 men to any part of Europe,
and England’s position, as a military empire, would be established. It
was asserted that the political results, accruing from any Government
having at its disposal such a class of ships, would be equally
important; while the facility provided for the transportation of large
numbers of soldiers across the seas would necessarily consolidate
more closely the power of Great Britain with that of her distant
possessions. The revolution a squadron of such vessels would effect
in war would be as great as their results in commerce; moreover, for
the first time, steam would achieve on the ocean what it had already
achieved on land.
But the arguments employed by the negotiators, backed as these were
by suggestions artfully thrown out by a portion of the public press,
to the effect that foreign powers might become possessed of this
invaluable ship to the prejudice, disadvantage, and dishonour of
Great Britain, terminated in failure. Government decided against the
proposal, and no alternative remained, but to wind up the affairs of
the existing company and to endeavour to make some arrangement whereby
fresh capital could be raised to complete the vessel.
[Sidenote: Further proposal to employ her as a cable-layer.]
The Atlantic cable, which was to form a telegraphic communication
between Europe and the United States, was completed in the summer of
1858, and the vessels of war employed in laying it across the Atlantic
having made an unsuccessful voyage on the first occasion, it was
strongly urged upon Government[428] that the _Great Eastern_ should
be fitted up by the Admiralty for the purpose of laying it down, as
the whole of the cable could be contained in this one vessel, thus
diminishing the risks of failure necessarily inseparable from employing
two ships, each starting in opposite directions from the middle of the
Atlantic. But the prevailing opinion then was, though it changed a
few years later, that the _Great Eastern_ from her height out of the
water was unadapted for such a service, and, further, that there were
no public grounds on which the application of the necessary sum from
the Exchequer to assist the operations of a private company could be
justified: therefore, Government distinctly refused to entertain the
proposal.
Renewed endeavours were now made to reorganise the undertaking, and
after much difficulty the affairs of the original company were wound
up, the sum of 160,000_l._ having been accepted for the sale and
transfer of the vessel to a new company, which came into possession of
her in the beginning of the year 1859.
[Sidenote: Makes her first sea trip, September 9th, 1859.]
Somewhere about 300,000_l._ having been subscribed for the new
undertaking, which received the name of the Great Ship Company, the
directors, after paying for the ship, had 140,000_l._ left to equip her
for sea; but it was not until September 1859 that the _Great Eastern_
was sufficiently complete to make her first trial trip. On Wednesday,
the 9th of that month, she took her departure from the Thames under
the most favourable circumstances, the weather being very fine with a
light breeze of wind and blue sky overhead. Starting with four tugs,
two on the bow and two at the quarter, to guide her through the narrow
parts of the river, she, after some delay and a few slight mishaps,
reached Purfleet, where she anchored for the night. At daylight, on the
following morning she started for the Nore, where she arrived about
noon, having obtained a speed of “13 knots” an hour, though only at
“half-speed”, her engines making not more than eight revolutions a
minute.
From the Nore the _Great Eastern_ proceeded successfully to Whitstable,
where she anchored, getting under weigh, thence, at a quarter past nine
on the following morning with a fresh breeze. After passing Margate
she encountered a stiff gale, where, as represented in the following
woodcut, she appears “quite at ease,” when “large ships were under
double reefed topsails” and small vessels were obliged to “lie to.”
[Sidenote: Accident off Hastings, and the opinion of the pilot.]
But an unfortunate accident occurred to her, when off Hastings, through
the explosion of one of her funnel-casings, causing the death of six
men employed in the engineering department, injuring various others,
and destroying nearly all the mirrors and other ornamental furniture
in the grand saloon. Though appalling enough at the time, no injury
was done to the hull or machinery of the vessel sufficient to prevent
her proceeding on her voyage to Weymouth, which she reached without
any further misfortune on the afternoon of Friday, within the time
anticipated for her arrival.
[Illustration: S.S. “GREAT EASTERN,” UNDER FULL SAIL AND STEAM, PASSING
DOVER.]
[Sidenote: Reaches Holyhead; and details of her voyage.]
On her arrival, the pilot who had been in charge of the _Great Eastern_
from Deptford to Portland (Weymouth Bay), made an official report of
her performances to the company,[429] confirming, in some measure,
the glowing accounts in many of the public journals and realising the
sanguine expectations of the directors, though their hopes of profit
had been somewhat damped by the accident which, apart from the loss of
life, entailed an outlay of 5000_l._ The necessary repairs having been
completed, the _Great Eastern_ proceeded from Portland to Holyhead,
but without passengers as originally contemplated. Starting at noon of
the 8th of October, she made the run to Holyhead in forty hours at an
“average speed of close upon 13 knots or more than 15 statute miles
in the hour,” having on some occasions attained a speed of 15 knots
an hour, the engineers and other experienced men on board feeling
“thoroughly convinced that, when in the condition which the company has
a right to expect, she will make easily 18 knots or 21 miles an hour.”
The paddle-engines, during one portion of the passage where a careful
record was kept, appear to have made from 8¾ to 9¾ revolutions per
minute, and the screw from 32 to 33½ revolutions in the same time,
the pressure being 20 pounds per square inch in both cases with the
throttle-valves half closed and both engines working on the second
grade of expansion, giving an average speed of 12 knots an hour, but
with an outlay of “10 tons of coal per hour.” On another occasion when
the sails were set, and the weather more favourable, she is said to
have attained a speed of 15 knots, with the screw making from 38 to 40,
and the paddles from 10½ to 11 revolutions per minute, and, at this
rate of speed, the screw boilers consumed on the average at the rate
of 170 tons per day, and the paddle-engines on the average 110 tons,
giving a consumption of 280 tons of coal each day under favourable
circumstances. During the highest rate of speed the engines made 11
revolutions for the paddles per minute and 43 for the screw. A special
trial gave the speed of the ship under paddle-wheels alone 7¼, and
under the screw alone 9 knots an hour.
[Sidenote: Makes her first voyage across the Atlantic, June 1860.]
Having made the trial trip to Holyhead to the satisfaction of her
directors, the _Great Eastern_ left that harbour shortly after noon on
the 2nd of November for Southampton, but did not leave that port on her
first voyage across the Atlantic until the morning of the 17th of June,
1860, reaching New York on the 28th of that month. The greatest speed
attained during the passage was 14½ knots an hour, and the greatest
distance run in any one day 333 knots.[430] Only thirty-six passengers
were found bold enough to accompany her on this voyage, besides two of
the directors. But the Americans gave her a warm and hearty reception
on her arrival at New York; hundreds of small vessels crowded with
people having gone out to meet her and bid her welcome, the scene in
the North River, where she moored, being described[431] as a “perfect
ovation.”
In the report which the directors issued to the shareholders[432]
shortly after the _Great Eastern_ returned to Milford Haven (where she
was placed with great skill on a gridiron and had her bottom cleaned
and painted) they state that 14,000_l._ had been remitted from the
agents at New York, and, though they had not then furnished their
accounts, the directors expressed a hope that the receipts would cover
the expenses of the trial trip to America without trenching on the
capital; they, however, stated that heavy outstanding claims remained
unsettled, and that they would require, to meet these demands and
put the ship into good working order, an additional capital of from
30,000_l._ to 40,000_l._
[Sidenote: Second voyage, May 1861.]
The requisite sum having been provided, the _Great Eastern_ left
Milford Haven on her second passage for New York on the 1st of May,
1861, with 100 passengers. On this occasion she consumed from 159 to
295 tons of coals per day; the entire distance (3093 miles) being
accomplished in ten days, though the wind, by her log, appears to have
been ahead during a considerable portion of the voyage. In one day,
she accomplished a distance of 348 nautical miles, her _greatest_
speed being 14½ knots an hour, or one half knot per hour less than the
_average_ speed anticipated on a voyage to India.[433]
[Sidenote: Third voyage to Quebec, July 1861.]
On the return of the _Great Eastern_ to England in the following month
of June, the apprehension of war with the United States occasioned by
the _Trent_ affair induced the British Government to engage her, with
other steamships, to transport troops and munitions of war to Canada.
But those embarked (or rather, for prudential reasons, allowed to
embark) fell far short of the number her designers had contemplated;
they had estimated 10,000, but the Government wisely limited the
number to 2079 men, 46 officers, 159 women, and 244 children, besides
40 cabin passengers who were civilians. Having landed her troops at
Quebec, she left that place on her return to England at four o’clock
on the morning of the 6th of August, and, though detained twelve hours
in crossing the bars in the River St. Lawrence, she arrived at her
moorings in the Mersey on Thursday at 8.30 P.M. of the 15th of that
month.
[Sidenote: Fourth voyage, September 1861.]
[Sidenote: Heavy gale off the S.W. coast of Ireland, compelled to
return to Cork.]
Early in the course of the following month, the _Great Eastern_ sailed
from the Mersey on her fourth Transatlantic voyage with 400 passengers
of different classes for New York. On this occasion she encountered,
on the 12th and 13th of September, a heavy gale of wind when about 280
miles off Cape Clear, and sustained so much damage that she was obliged
to put back and seek shelter in Cork Harbour. Various accounts of this
disaster appeared, at the time, in the daily journals. Her paddles,
it would appear, were seriously injured, and her rudder “rendered
useless.” Nor do the writers of these accounts speak very highly of the
anticipated superior sea-going qualities of the great ship, or of her
freedom from that violent motion in a gale, to which ordinary vessels
are subjected. Indeed, one of her passengers on this occasion, in a
letter he addressed to the _Times_, gives the most melancholy account
of her, but this description of the disaster and the imminent danger
to which her passengers were exposed, is probably exaggerated.[434]
Landsmen in a gale, especially when anything goes wrong, generally,
take the most gloomy view of matters; they picture to themselves
dangers which have no reality, and, when they see the seamen hurrying
to and fro to rectify, as far as possible, any damage the ship may have
sustained about her spars, rigging, or bulwarks, they too frequently
give themselves up for lost.
So long as the hull of a ship keeps sound the action of the ocean,
however disturbed, does not, materially, affect her safety, but, in
this action, the landsman, too frequently, sees just that kind of
danger which the sailor is said to have dreaded during a gale on land,
from falling slates and broken chimney-pots, congratulating himself
that he was at sea and not on shore in the midst of the storm.
[Sidenote: General remarks on the sea-going qualities of different
ships,]
On the other hand, the anticipated ease and safety of the _Great
Eastern_ during a gale was about as much exaggerated, as the
discomforts and danger the narrator of the gale has described. One
enthusiastic writer, among numerous others equally sanguine, in his
description of what might be expected from the great ship in a storm,
remarks “she will set circular sailing at defiance,” as if circular
sailing has anything whatever to do with the sea-going qualities of a
vessel. He then exclaims: “The line which in a tornado is said to make
a steady but resistless run of 20 miles will be counteracted by the
‘wave line,’ which Mr. Scott Russell has adopted as the principle on
which she has been built. Storms and tempests will be looked upon as
merely sublime phenomena, in nowise menacing peril as things scarcely
affecting the ship, but to be gazed upon out of snug cabin windows as
interesting episodes of the voyage.”
[Sidenote: and on the effect of wind in causing “rollers.”]
So much for the two extremes, but from these glowing anticipations on
the one hand, and the exaggerated account of the actual event on the
other, some lessons may be learned. The wave line (whatever may be its
advantage, if any, over the lines usually adopted by shipbuilders) can
produce no sensible difference in the violent motions of a ship at sea,
even if it tends to promote greater speed. Waves are of greater length
and height, according to the force of the gale and its extent of sweep
over the ocean.[435] In channels, where broken by projecting points of
land or promontories, they are short and disturbed. When crossing the
whole breadth of the Atlantic during a westerly gale, they are long,
and, as they roll between the headlands forming the Bay of Biscay,
they are also disturbed, rendering a voyage across that part of the
ocean a proverbially unpleasant and, with deeply laden and badly found
ships, a somewhat dangerous one. To insist, therefore, as some writers
appear to have done, that the lines of a ship should be in conformity
with the length and action of the waves, or that, by a careful study
of the law of fluids, they can be so drawn as to render, under all the
varied circumstances of a long voyage, one ship more easy or even more
swift than another, is, I fear, attributing to science more than it can
reasonably claim; for though, by its general application to the models
of ships, great improvements have of late years been made, I can hardly
suppose that _lines_, based on the action of fluids, which must be
more or less disturbed by the weight and velocity of a vessel passing
through them, and by the action of the winds on their surface, do
really possess any superior advantages so far as regards greater ease,
speed or safety.[436]
Nor had the idea, which prevailed at the time, that a ship of the vast
dimensions of the _Great Eastern_ would bid defiance to the danger of
the ocean, much more foundation in fact. No doubt a vessel of 1000 tons
is a much safer mode of conveyance across the Atlantic than one of 100
tons, and a vessel of 2000 tons may be still more so, but not to either
the same degree or extent. Moreover, a ship of double that size, or say
4000 tons, is no safer, though she may be more comfortable, for various
self-evident reasons, such as being less liable to receive on deck the
crest of the waves, or by affording more space and better ventilation
in her cabins; but anything beyond that size will, assuredly, not
realize much greater speed, though she may afford greater comfort.
[Sidenote: Real truth about “momentum.”]
A vessel of 100 tons is lifted by every large wave, and, consequently,
the distance she has to traverse is increased. As the size is enlarged
this particular description of motion diminishes, in proportion to
the length of the vessel. But there is a limit to this advantage, as
there is to most other things, and a vessel of 5000 tons and 400 feet
long, will be, similarly, borne on the crest of two or more of the
largest waves as a vessel 700 feet in length, and, therefore, would
lose nothing in speed from the ascending and descending motions: this
fact has, indeed, been satisfactorily proved, as the ships of the
Ismay, Cunard, Inman, Allan, and other lines of steamers employed in
Transatlantic voyages have made more rapid passages than ever the
_Great Eastern_ did.[437] Speed, beyond a certain size, is determined
by the model, and the power of propulsion, due regard being had to
the weight to be propelled and the resistance offered by the depth and
extent of immersion. The momentum, about which a great deal was said
and from which so much was expected in the case of the _Great Eastern_,
though of some importance, when vessels of 100 tons are compared with
those of 1000, is of much less consequence in the case of vessels of
unusual weight and dimensions. It is at best only transitory, while, to
drive a vessel of 20,000 tons through the water at the rate of 15 miles
an hour, somewhere about four times greater power would be necessary
than to secure the same speed in a vessel similarly constructed, of
5000 tons, although less power in proportion to tonnage would suffice
in smaller vessels.
[Sidenote: Very large ships not so safe as smaller ones, as their
damages are less easily repaired.]
But, with regard to the first and by far the most important
consideration, the safety of a vessel at sea, I am disposed to think,
though contrary to the generally accepted view, that ships of vast
dimensions are less safe, in exceptional circumstances, than those of
ordinary size. Take for instance the case of the accident to the _Great
Eastern_, to which I have just referred, in which she lost her rudder,
or when, at all events, it was so seriously injured as to be rendered
inefficient. I need say nothing of the difficulty, or it might be of
the impossibility, of providing a temporary mode of guiding a vessel of
such huge dimensions. The loss of the rudder of any vessel in a gale of
wind is no doubt a serious matter and one which must ever cause peril,
but that peril increases with the size of the ship, for, when thus
rendered helpless, the greater the bulk, the greater is the resistance
offered to the action of the waves as they strike her sides. This is
exemplified, though to a far greater degree, by the fact that a strong
ship, on which the beating of the waves in the open sea would make
little or no impression, would be dashed to pieces by the same waves
if she was stranded on a lee shore. A large ship without rudder and,
consequently, helpless in the hollow or trough of the sea would offer
resistance to the stroke of the wave in proportion to her weight, and
the wave would, consequently, strike with the greatest force on the
body of the greatest weight. This, in some measure, and not without
reason, accounts for the alarm created in the mind of the passenger
on board of the _Great Eastern_ during the gale he so graphically
describes.
[Sidenote: Chief later use of _Great Eastern_ as a cable layer, but
not, even here, remunerative.]
From the time of this disaster, the movements of the _Great Eastern_
are not of much historical interest, so far as regards merchant
shipping. It is true, that she proved of great value and importance in
laying the Atlantic telegraph cable during the summer of 1865, and, in
the very skilful feat of picking up from the depths of the ocean the
broken ends, and in laying another Atlantic cable during the summer of
1866, when no other ship of sufficient dimensions could then have been
found to perform that difficult and hazardous undertaking.[438] She has
also proved very useful since, in other similar operations, in India
and elsewhere; but, for ordinary commercial operations as various
persons predicted,[439] when she was first projected and long before
she was sent to sea, she has been a ruinous, though not a lamentable
failure.[440] Even the work of laying cables was not remunerative, for,
by a report of the directors issued in March 1869, it appears that the
great ship had been arrested for a debt of 35,000_l._, that the current
expenses had, considerably, exceeded the receipts, and that there were
other claims which had to be met, before she could again proceed to
sea. These difficulties were, however, overcome. The debt of 35,000_l._
was settled for the comparatively moderate sum of “4000_l._!” and
the other demands, though not nearly so extortionate, were amicably
adjusted. In 1868 the _Great Eastern_ was again chartered by the
Telegraphic Construction and Maintenance Company, for the purpose of
laying a telegraph cable between Brest and Ducksburgh near Boston; and
for the same company she laid a telegraph cable between Aden and Bombay
in the spring of 1870.[441] In 1873 and 1874 she laid other two cables
between Valentia and Heart’s Content in Newfoundland; and on the 25th
of July, 1875, she completed her charter (20,000_l._ per annum), and
was handed over to her owners. Since then she has been placed upon a
gridiron to have her bottom cleaned, and I daresay her owners are now
at a loss to know how she can be profitably employed.
[Sidenote: Concluding remarks.]
But it will hardly be gainsaid, that the building, launching, and
navigating such a ship are events in the history of merchant shipping,
sufficiently important to justify the extent of space devoted to her
in these pages; and, should my imperfect record survive for the next
hundred or fifty years, there may be found in these pages a collection
of facts relating to a ship, more marvellous than that of Hiero, King
of Syracuse, or of the Penteconter of Ptolemy Philopator. Perhaps, too,
this record may contain more details of value, than the historians
of those ships have handed down to posterity, for it may be that,
a hundred or fifty years hence, the maritime commerce of the world
may have grown to an extent sufficient to justify, with reasonable
prospects of profit, another ship of the dimensions of the _Great
Eastern_. I can only write of the past and the present, leaving the
future to be dealt with by those who may follow me, and, perhaps, all
that posterity will be able to say against the enterprising promoters
of the _Great Eastern_ may, hereafter, be condensed in the flattering
eulogium, “their ideas in regard to dimensions were in advance of their
age—they were only before their time.” Though far from realizing
the expectations once entertained with regard to speed and small
consumption of fuel, her failure is, mainly, to be attributed to the
fact that, at the time she was constructed, there were no lines of
traffic on which a vessel of such huge capacity could procure, with
despatch, the amount of freight or passage money necessary to insure a
profit. But, from first to last, even when the failures of her launch
had become too apparent, the people of England were proud of her,
and this is not surprising, for no other country could have raised,
by voluntary subscription, and without any aid from Government, the
capital requisite to construct and equip this monster ship for sea.
That their pride should have found vent in numerous paragraphs in
the public press is only what might have been expected, for, though
shrewd men shook their heads, and cautious men declined to invest their
capital in the ship, she was a marvellous piece of workmanship, even
the Americans admitting, that England might well feel an honest pride
in having produced such a triumph of mechanical skill, and welcoming
her as they did to their shores, as a characteristic evidence of the
genius, energy, and pluck of their fatherland.
Although I have not hesitated to expose the want of forethought, which
rendered the _Great Eastern_ a commercial failure, and the grave
mistake in her launch, I cannot refrain from admiring the extension
of the spirit of national pride to private undertakings such as
these. Much has been learned and much has still to be learned from
her. Various mechanical contrivances, now in use, were first adopted
in this great ship. In herself she indicates the most astounding
progress. Indeed, when I consider that only forty years had elapsed
since the small engines of the _Comet_ which, though they puffed and
strained, and made noise enough to frighten the people who watched the
little vessel in her progress down the Clyde, were the finest of the
period, and compare them with the vast engines of the _Great Eastern_,
working in their combined action without the slightest jerk, and almost
noiselessly, my mind is lost in wonder at the prodigious advance made,
within my own time, in this mighty civilizing instrument.
FOOTNOTES:
[426] Mr. Brunel’s estimate to the directors of the cost of the launch
was 14,000_l._
[427] “What fleet (exclaims the writer of a leading article in one
of the London daily papers) could stand in the way of such a mass,
weighing some 30,000 tons, and driven through the water by 12,000
horse-power at the rate of 22 or 23 miles an hour?”
[428] See Mr. Griffiths’ speech in the House of Commons, 9th July, 1858.
[429] Extract from the pilot’s report:
“On arriving at Sea Reach I found the vessel so completely under
command with the use of her own paddle-wheels and steam-engines, that
I decided on casting off the steam-tugs altogether, and proceeding
afterwards without any assistance. On reaching the North Foreland,
we experienced a stiff double-reefed topsail breeze, during which
other vessels were pitching and tossing a good deal, and, on passing
the Downs, the wind increased to a close-reefed breeze, and many
large vessels were lying with two anchors down. Throughout, the
vessel steered with the greatest ease, and, literally, without any
perceptible motion, and for some time I have no hesitation in stating
that, computing our distance by points on land, which admit of no
mistake as to distance, we were making fully 14 knots an hour with
both paddle-wheels and screw-engines working fully one-third under
their pressure. The misadventure, which occurred off Hastings, in no
way interfered with the working or progress of the vessel, and, with
the single engineering accident in question, we made the voyage from
Deptford to Portland without any check or interference of any kind. The
vessel is, in every respect, an excellent sea-boat, and I may state
without any hesitation that, with sufficient sea-room, she is even
more easily handled and under command than an ordinary ship, either
sailing-vessel or steam.”
[430] Her daily performances were as follows:
17th June 285 knots
18th June 296 knots
19th June 296 knots
20th June 276 knots
21st June 304 knots
22nd June 280 knots
23rd June 302 knots
24th June 299 knots
25th June 325 knots
26th June 333 knots
27th June 254 knots
[431] Letter from passenger in the _Great Eastern_.
[432] 14th October, 1860.
[433] In the various newspapers and reports I have searched for
information about this ship, and other inquiries, I have never had any
reason assigned for the _Great Eastern_ not having been placed, when
ready for sea, on the India line, from which so much was expected of
her, and for which she was specially built; or why her new directors
sent her, on hap-hazard and expensive cruises, down channel and across
the Atlantic, when every trip showed a ruinous loss. But I suppose the
true reason is to be found in the fact, that they could not obtain for
either India or Australia sufficient goods and passengers to justify
the heavy outlay necessary for such long voyages (the cost of outfit
may in itself have been an obstacle), and that, in truth, there was
no branch of maritime commerce wherein she could then be profitably
employed.
[434] “_Thursday._—This morning we have a fresh gale, with a good
sea. Noon: A heavy gale; wind, from north to west; sea, tremendous. We
roll very heavily, and ship many seas. I now begin to understand the
true meaning of a gale in the Atlantic. The captain looks anxious, but
the passengers have faith in the ‘big ship.’ The ‘rolling’ is fearful,
and quite upsets all persons’ notions of the steadiness of the _Great
Eastern_. Two o’clock: Things look worse. The captain tries to put our
head to the wind. The port paddle gives way with a great crash in the
attempt. The jib is set, I presume to aid in steering, but it is blown
to ribands in a few moments. The rolling increases; the deck presents
an angle of 45 degrees, and none but experienced seamen can walk
about. Attention is suddenly drawn to the boats; they are suspended
on either side, but mostly on fixed davits. The heavy rolling brings
the boats in violent contact with the waves. The tackling of the long
boat becomes deranged; a man and a boy enter it to remedy the evil, but
the wind strikes the boat, and gives the occupants forcible ejectment,
happily upon the deck, and in a moment it is floating far away from us.
Four other boats share a similar fate in rapid succession. Continued
efforts are made to bring the ship to the wind. I watch the men at the
wheel—there is almost an army of them. 5.45.—Our position is indeed
critical. A tremendous sea has just struck our stern. It has broken her
rudder head. Still, we are not quite at the mercy of the waves; we have
our screw, and we have our starboard paddle. The wind is now getting to
the south-west.
“_Friday_, 6 A.M.—We are drifting before the wind at the rate of 3
or 4 knots an hour. We have never been more than 300 miles from land.
We are drifting eastward now; but, even if the wind does not change,
it will be many days before we can reach land in this manner. The
pumps are all going. I do not like the sound, but am assured they have
complete mastery over the water. The water has got in through the ports
and by way of the deck.
“There is scarcely a cabin in the ship to which the water has not found
its way. Many require a change of clothes, and the hatchways of the
baggage stores are opened. The scene that presents itself defies all
description. The water has got in, and in sufficient force to float
even many of the larger articles. The rocking of the ship has set the
whole mass in motion.”
[435] “From a paper of great interest it would seem that,
approximately, the cube of the height of the waves is proportional to
the square of the velocity of the wind. Most of the conclusions drawn
in this paper are from observations made during the voyages of the
_Bonite_ and _Astrolabe_.” (“Naval Science,” October 1874, Part II., p.
159.)
[436] See paper on “The Difficulties of Speed Calculations,” by Mr.
Denny, read at the Institution of Engineers and Shipbuilders in
Scotland, 23rd March, 1875, pp. 2, 3, and 4.
[437] See Appendices Nos. 10 and 17, pp. 606 and 617.
[438] 1000_l._ per month was paid for the use of the ship alone. When
the agreement expired in 1867, she was chartered by a French Company to
carry passengers between New York and Brest for the Paris exhibition.
Her cabins were then altered and redecorated, and new boilers fitted
to the screw engines. But the French Company was unsuccessful, and the
_Great Eastern_ only made one voyage in its service.
[439] Towards the close of the year 1857, when the prospects of the
_Great Eastern_ were exciting much public attention, the author
ventured to offer to his constituents at Tynemouth, nearly all of
whom were interested in ships, the following remarks (reported in the
newspapers of the period) with regard to her:
“Very shortly there will be launched a ship of vast and hitherto
unparalleled dimensions: I allude to the _Great Eastern_. If that ship
answers, I do not know where we shall be with our small vessels. As
this is a subject, upon which opinions have been greatly at variance,
perhaps you would like to hear mine. It must be a matter of deep
interest to all present, because you are all directly or indirectly
interested in the shipping trade, to know whether such a ship as the
_Great Eastern_ is, or is not, likely to answer in a commercial point
of view, and I venture on this topic because I have heard strong
opinions expressed to the effect that, commercially, she will be a
great triumph. For my part, I believe her to be a great triumph of
mechanical skill, I believe that no finer or stronger vessel has
ever been put together: so far as regards her formation, I think she
is a very splendid model: but, with reference to the speed she is
expected to attain, I doubt very much whether she will ever realise the
anticipation of her builder, though I think that we, as a nation, ought
to be proud of having men who can produce so marvellous a piece of
mechanism. But we must look, also, to the commercial element, because
in this, I, and most of you are deeply interested. If such a ship
as the _Great Eastern_ be found to answer commercially, most of our
property will go to the wall, for, in a short time, our small vessels
will be of very little use to us. The course of commerce is this: If a
Manchester merchant has 1000 bales of a particular description of goods
to send to Calcutta, he does not send the whole of them in one bottom,
because he might thus overstock the market. On the contrary, he sends
them in from four to six different vessels, and he does this for two
reasons: first, that by so doing he feeds the market; and, secondly,
that he gets, thereby, quicker returns. The principle of commerce is to
send out supplies in relays. Then again, we find that passengers do not
go out in masses, but, at such intervals, as suit them best. And, in
times of war, statesmen find it the wisest plan to send out not 1000,
much less 10,000 men in one bottom, but from 400 to 600, at the utmost,
in one ship. And this must appear to be sound policy, when we picture
to ourselves what might be the result of sending out a whole army in
the _Great Eastern_. I do not take into consideration the contingency
of the ship going to the bottom. I shall not ask you to imagine so
fearful a calamity, but, supposing anything happened to her machinery
and occasioned a serious stoppage, when expedition was necessary to the
attainment of a certain object, the effect would be that the whole army
would be detained. No Government would dare to send so large a force in
one vessel. Therefore, looking at the question, politically as well as
from a commercial point of view, I am of opinion that we have nothing
to fear from the competition of leviathans such as the _Great Eastern_.”
[440] If any further proof was required that the _Great Eastern_
proved a failure in the two points, speed and comfort at sea, on which
her protectors mainly built their hopes, it will be found in a small
and amusing book by M. Jules Verne, translated from the French, and
published by Messrs. Sampson Low and Co. (1875), entitled “The Floating
City.” M. Verne, who made a voyage in this ship in 1867 from Liverpool
to New York, records, from the official returns, her speed as not
exceeding 250 nautical miles each day on the average, and he describes
her movements during strong winds as “rolling frightfully, her bare
masts describing immense circles in the air.”
[441] It has been stated that the loss upon the _Great Eastern_ up to
this period amounted to close upon 1,000,000_l._ sterling!
CHAPTER XV.
River and coast trade of Great Britain—The _Iona_, paddle
steamer—First screw collier _Q. E. D._—The _King Coal_
collier—Her dimensions and crew, _note_—Improvement in care
of seamen—Leith and London traders—Dublin and Holyhead
Mail-Packets—Their great speed and regularity—Dimensions,
power, capacity, and cost—Dover and Calais Mail-Packets—The
_Victoria_—Her speed—Proposed tunnel and other modes of crossing
the Straits of Dover—Mr. Fowler’s plan—The _Castalia_—The
_Bessemer_—Her swinging saloon—The cigar-ship built at
Baltimore, 1858—Similar ship built on the Thames, 1864—Perkins’s
economical steam-engine and proposed fast boat—The Engine
of the _Comet_—Modifications in the construction of Marine
Engines—Ratio of speed to power—The Compound Engine more
economical than the simple—Great skill required for building
perfect ships, and, especial importance to England of having the
best ships—But her ships not yet perfect, though great progress
has been made during the last half century.
[Sidenote: River and coast trade of Great Britain.]
Although Great Britain supplies from its rivers and coasts
three-fourths of the ocean-going steamers of the world, its own
coasting and inland navigation affords but a very limited field for the
employment of vessels of any kind compared with the shores and rivers
of America, India, and China.
Before the introduction of steamers, a few row-boats, sailing wherries,
and barges were sufficient to conduct the whole of the river traffic.
This new expedient, however, though soon met in another form by the
competition of railways, has vastly developed even this comparatively
limited trade. Steam-boats now, whether on business or pleasure, are
to be found in great numbers on every navigable stream, and are still
on the increase; indeed, the improved facilities for intercourse on
land, so far from retarding that increase, gives fresh life to the
swarms of passenger-boats, yachts, steam-launches and steam-barges,
which ply wherever they can find the means of flotation, and,
especially, on the Thames and Clyde.
[Sidenote: The _Iona_ paddle steamer.]
Offering, as it does, greater inducements than any other river in the
United Kingdom, there are now to be found on the Clyde many elegant and
commodious steam-boats. Although generally inferior in size, equipment,
and speed to those of the Hudson or Long Island Sound, one of them, the
_Iona_, a paddle-wheel boat, employed in the passenger traffic between
Glasgow and the Western Highlands, is almost unrivalled.[442] This
beautiful vessel affords deck and cabin accommodation for no less than
1200 passengers, and her long range of saloon houses, with plate-glass
windows extending right fore and aft, gives her a graceful and imposing
appearance. Fleets of similar vessels, though of inferior dimensions,
now ply between Glasgow and the numerous watering places which line the
shores of the estuary of the Clyde, presenting a striking contrast to
the times of Henry Bell’s _Comet_.
[Sidenote: First screw collier, _Q. E. D._]
[Sidenote: The _King Coal_ collier.]
Equally marked has been the improvement in the vessels now
employed in the coal and coasting trades of Great Britain. From the
sailing-vessels of the north-east coast, of which an illustration has
been furnished,[443] we advanced to the screw, and, in 1844, built of
iron the first screw-collier, the _Q. E. D._, for the conveyance of
coal from Newcastle to London. She was heavily barque-rigged, and, in
style and form, somewhat resembled the fast Baltimore clippers, the
intention of her owners being to depend chiefly for speed upon her
sails, and to use her engine as an auxiliary power. Her mizen mast, a
hollow tube of iron, was made to serve the purpose of a funnel, and
the whole of her standing rigging consisted of _wire rope_. She had a
double bottom, divided into separate chambers, so that any injury to
the one would not affect the other, each being covered with a false
floor and hermetically closed. Into these vacant spaces between the
bottom and the floors, water could be admitted by means of cocks, for
the purpose of ballast, and, at the same time, easily pumped out again
by an engine when not required. The _Q. E. D._ therefore, in herself,
contained many inventions then little known, the more important of
which, as the wire rope and water ballast, are now in general use. But
the auxiliary engine and full sailing rig did not answer in the coal
trade better than it had done for distant voyages, the sails in this,
as in all cases, having become auxiliary to the engine as a propelling
power. Steamers of light rig and comparatively full power, now carry on
the largest proportion of this trade, although there is still room for
a considerable number of the old sailing-colliers. An illustration of
one of the finest steam-colliers will be found on the following page,
and I am enabled through the courtesy of her owners to furnish not
merely a drawing, but the particulars of this vessel, which bears the
appropriate name of _King Coal_.[444]
[Illustration: “KING COAL.”]
We see, here, another instance of the vast progress of the last forty
years. The ordinary collier of that period, of 230 tons register, or
with a capacity of from 16 to 17 keels of coals, required[445] a crew
of ten men, and from a month to five weeks for the round voyage
to London. In the course of the year she delivered, under the most
favourable circumstances, 3500 tons of coals; but the screw-collier of
to-day, requiring a complement of only seventeen men, including the
engineers and stokers and a steward (a luxury wholly unknown to the
collier skipper of byegone days), conveys, annually, on the same round,
50,000 tons; while the deck-houses for the protection of her men in wet
and stormy weather are comforts the crew of a sailing-collier never
would have dreamt of.
[Sidenote: Improvement in care of seamen.]
Nor are the seamen less cared for in other respects. The accommodation
provided for the collier sailor of to-day is of an order very superior
to that afforded him forty years ago. Thus he can make sure of a dry
bed and a fire to cook his victuals during the stormiest weather,
comforts too frequently unknown to his predecessors; if he may still
have causes for complaint, they are incomparably few to those his
fathers had before him, and if this service does not now produce the
same class of hardy men, who helped to crown the ships of England with
laurels of immortal fame in the days of Duncan and Nelson, this arises,
in some measure, from the fact that the good living and comforts of
modern times tend to render them less willing to endure, or perhaps
less disposed for, the prompt and resolute action which, in most
achievements, alike of war and peace, insures success.
But, even, if it be true that the seamen of to-day are too much
pampered and nursed, they have, unquestionably, in their profession
many hardships still to endure, with discomforts and even dangers,
which might be avoided. The philanthropist, however, who advocates
changes likely to weaken the Inspired maxim that man was born to live
by the sweat of his brow, forgets his calling and injures those whose
cause he advocates.
[Sidenote: Leith and London traders.]
In every other branch of our coasting trade, the change has been quite
as marked as in that of the coal trade, steamers, on all the important
lines, having superseded sailing-vessels. A few of my readers may
remember the celebrated Leith smacks which derived their name from
trading between that port and the Thames, carrying on, before the
invention of railroads, a great portion of the passenger and goods
traffic between Edinburgh and London.[446] Although the line of
maritime communication, thus opened in 1809, was conducted in these
smacks with considerable success, they were, subsequently, in part,
replaced by clipper schooners, vessels of great speed, which maintained
their position for some years against the steamers of the General Steam
Navigation Company; but the London and Edinburgh Shipping Company, to
whom they belonged, were obliged, in 1853, to adopt the new mode of
propulsion, so that all the most valuable portion of this trade is now
conducted by steamers. Indeed, they now encircle the whole of the
coasts of England, Scotland, and Ireland, and there is hardly a port in
the kingdom which has not its steam-ship communication either with the
respective capitals or elsewhere.
[Sidenote: Dublin and Holyhead Mail Packets.]
Although constructed chiefly for the conveyance of goods, most of these
lines have excellent accommodation for passengers, especially those I
have just specified. This is also the case with the steamers plying
between London, Dundee, and Aberdeen, Glasgow and Liverpool, and with
many of the lines connecting Ireland with England and Scotland. Among
the most celebrated are the Dublin and Holyhead packets, whose work is
confined exclusively to the conveyance of the mails and passengers.
Before the introduction of steam-vessels, it was no unfrequent
occurrence for the sailing-packets, then engaged in this service,
to be three or more days in crossing the Irish Channel; and, from a
Parliamentary return issued in 1815, we learn that, for the space
of nine days in the previous year, only one packet could sail owing
to adverse winds. In 1819, the passage of the sailing-cutters then
employed averaged twenty hours from Holyhead to Dublin. In the summer
of that year, however, the _Talbot_, of 156 tons, built by Wood of Port
Glasgow, with engines of 30 horse-power each, by Napier, was placed on
the station; and the _Ivanhoe_, of somewhat the same size, by Scott of
Greenock, with engines also by Napier, followed in the course of the
ensuing year.
[Sidenote: Their great speed and regularity.]
The unexpected success of these steamers overcame the professional
prejudices of the commanders of the sailing mail-packets, who had
recently recorded as their opinion “that no vessel could perform the
winter passage with safety but sailing-cutters.” The wish alone in
this case must have been father to the thought, for, when the steamers
_Royal Sovereign_ and _Meteor_ soon afterwards took up their station
on the line, the cutters disappeared from it for ever. In fact, these
steamers had so fully established the numerous advantages to be derived
from the employment of vessels of this description, that, as early as
1823, a company was formed to carry on the communication regularly
throughout the year by means of steam-vessels only. Subsequently,
vessels superior to those of the class of the _Meteor_ were constructed
for this important service, and there were no faster or finer vessels
of the period than the _Banshee_ and the _Llewellyn_, which, in 1848,
were placed on this station, having on their trial trips attained a
speed of upwards of 18 statute miles per hour.[447]
[Sidenote: Dimensions, power, capacity, and cost.]
But the public soon required still faster and more commodious steamers;
and a committee of the House of Commons appointed to inquire into the
subject recommended the construction of vessels of 2000 tons each,
with power sufficient to attain a speed of upwards of 20 statute
miles the hour. Consequently, four ships were built, the _Connaught_,
_Ulster_, and _Munster_ by Messrs. Laird and Sons of Birkenhead, and
the _Leinster_ by Mr. Samuda of London.[448] The engines of all these
vessels are on the oscillating principle. In the two pairs constructed
by Messrs. Ravenhill, Salkeld, and Co., for the _Leinster_ and the
_Connaught_, the cylinders are 98 inches diameter with a length of
stroke of 6 feet 6 inches. The eight boilers are multitubular, four
being at each end of the engine-room space, arranged in pairs, with
one funnel to each pair. The paddle-wheels are on the feathering
principle, and are each 31 feet extreme diameter. On the trial trips
the engines worked at the rate of 25½ revolutions per minute, under
a steam pressure of 25 lbs. per square inch. The mean of the runs of
the _Leinster_ at the measured mile in Stokes Bay was at the rate of
20½ statute miles an hour, a greater speed by one mile an hour, than
had up to this time (1860) been obtained by any other vessel in this
country:—but the _Connaught_, when subsequently tried at the measured
mile, attained a still higher result, the mean of her runs showing the
speed of 20¾ statute miles per hour.[449]
The engines of the _Ulster_ and _Munster_ (constructed by James Watt
and Co.) as well as their lines, very much resemble the other two, the
main difference being that the diameters of the cylinders are each
96 inches, with 7-feet length of stroke. The internal arrangements
of all the vessels are planned, with the object of providing for the
comfort and accommodation of the public, in the way best calculated
to mitigate, and, as far as possible, to prevent, the sufferings
often accompanying the passage of the Irish Channel. In this and in
most other respects, great success has attended the objects their
designers had in view. Their saloons and cabins are large, lofty, and
well ventilated; the principal one being upwards of 60 feet in length
by 17 feet in breadth, and 9 feet 6 inches in height. Nor have these
magnificent vessels failed to meet the requirements of Government.
The regularity of their voyages has been surprising;[450] and I am not
aware of any loss of life or property which has occurred in connection
with them since they started in 1860.
[Sidenote: Dover and Calais Mail Packets.]
[Sidenote: The _Victoria_.]
[Sidenote: Her speed.]
Among the numerous other steamers now employed in the short voyage
mail service, may be mentioned the small swift vessels running between
Calais and Dover, Folkestone and Boulogne, Dover and Ostend, as well
as between Southampton and the coasts of France, the Channel Islands,
Jersey and Guernsey. They are beautiful boats of their class, and,
considering their size and the rough weather they are frequently
obliged to encounter, they perform their respective passages with
remarkable speed and regularity. It is a rare occurrence for these
packet-boats to be detained by a storm; and the manner in which they
dash out of Dover or Calais harbours, at almost full speed, against a
strong gale and an angry cross sea, shows that, if the British sailor
has, from want of practice, deteriorated in seamanship, he has lost
none of his native _pluck_. I know no more spirited and daring men than
the masters of most of these small mail steam-packets, unless it be the
Deal boatmen. They are cool and unruffled, while the smart little craft
under their charge forces its way through the waves at the rate of
twelve or thirteen miles an hour in the face of a gale which a landsman
would describe as a “violent storm.”
On the next page is an excellent illustration of one of these vessels
on her passage from Folkestone to Boulogne.
This smart vessel, the _Victoria_ (well known no doubt to many of my
readers), was built by Samuda, and her engines by Penn. On her trial
trip over the measured mile, she attained a speed of 16½ knots or
upwards of 18 statute miles an hour, which has been well maintained on
the service in which she is engaged.[451]
[Illustration: S.S. “VICTORIA.”]
[Sidenote: Proposed tunnel]
These boats, however, are in their turn about to be superseded: at
least, various other means have been suggested for crossing the English
Channel between Calais and Dover. The two most gigantic schemes are
a bridge over the channel and a tunnel below it, both having one
chief object in view, relief from sea-sickness during that short,
and, to most landsmen, very unpleasant passage. The bridge, though
it had a few influential and enthusiastic supporters, appears to
have been abandoned as wholly impracticable; but the tunnel is still
contemplated, and experiments are now being made to ascertain the
nature of the soil beneath the bed of the sea at the requisite depth.
Its projectors, who are men of influence and experience, are sanguine
of success, but as its cost will be enormous, though estimated at
not more than one-half that of the Suez Canal, and, as it cannot
be completed for many years, other plans have been in the meantime
suggested, two of which have been already partially put in operation.
[Sidenote: and other modes of crossing the straits of Dover.]
It would be entirely beyond my province to offer any opinion as to the
practicability of either a bridge or tunnel, but I shall endeavour to
furnish my readers with a brief outline of the novel description of
vessels now prepared to cross this narrow strait.
The question of bridging, tunnelling, or otherwise crossing the channel
by easier modes than the existing mail packets has long occupied the
attention of men of science, however much they may have differed with
regard to the best mode of effecting the object in view. Among various
modes, the one suggested by Mr. Fowler, C.E., in 1864, for which plans
were deposited in 1865 and 1867, and which was fully brought before
Parliament in 1872, seems to be well worthy of further consideration,
embracing as it does the extension of the “through traffic” without
change of carriage to all parts of the continent. This is one of the
important objects sought to be achieved by the tunnel, but at four
times the cost.
[Sidenote: Mr. Fowler’s plan.]
Mr. Fowler proposes to build a steam-boat fit to receive a railway
train complete, and carry it bodily across the channel from the South
Eastern and London and Chatham lines to those of the North Eastern
of France. To effect this object, it will be necessary to increase,
materially, the existing facilities of Dover Harbour, and to construct
a new harbour on the French coast, of sufficient depth of water to
receive, at all times of the tide, vessels of the dimensions he
suggests. The transport of railway trains, by means of vessels across
broad sheets of water, has, already, been proved to be practicable. The
operation may be seen, not merely in various parts of the United States
and on the Lake of Constance, but in Scotland, where “the North British
Railway Company carry trains across an arm of the sea, five miles in
width.”[452] Nor is the plan suggested for connecting the steamers with
the lines of railway, so that the carriages may run on board, either
novel or impracticable. The ferry-boats of New York dove-tail, if I
may so express it, into the end of a street and carry the whole of its
traffic in one continuous line of passengers, carts, and waggons to
Brooklyn, or across the Bay of New York to Staten Island and other more
remote places: so that, in this respect, there is nothing visionary or
impracticable in the scheme proposed by Mr. Fowler. Nor, so far as my
nautical knowledge extends, are there any valid objections to it in
other respects except the cost. There is no doubt that these vessels,
from their immense weight, size, and speed, will realise every comfort
by way of stability that can be attained in crossing the English
Channel at its narrowest part, while their vast dimensions afford
ample space for every possible convenience to passengers, and, even,
luxuries, if desired.
[Illustration: LONGITUDINAL SECTION
SECTION OF BOAT & HOIST
_Showing Carriages being run on board_
DIMENSIONS
LENGTH 450 _feet_
BEAM 57 ”
DEPTH of HOLD 14 ”
DRAUGHT 12 ”
FREEBOARD 8½ ”
TRANSVERSE SECTION
CHANNEL PACKET PROPOSED BY MR. FOWLER, C.E.]
But in order that my readers may more clearly understand Mr. Fowler’s
proposal, I furnish (page 559) longitudinal and transverse sections of
the boat he contemplates, with an illustration of the mode by which
the carriages are to be transferred from the lines of railway on board
the vessel, and, in a footnote,[453] his explanatory remarks. Further
explanations will be found in detail by reference to the evidence
given before a Committee of the House of Lords, but the more important
points of that evidence with the number of the question is supplied
herewith.[454]
The other boats, which have been already built, do not contemplate the
transport of the railway carriages, but are simply meant to afford an
easier mode of transit for passengers than at present exists.
The first, planned by Captain Dicey, formerly Master Attendant at the
port of Calcutta, proposed, according to the prospectus issued by the
company, “To provide ample accommodation for all classes of passengers
under shelter as well as on deck; to reduce the motion of rolling and
pitching of the vessel to a minimum; and to keep the draught of water
of the vessel to 6 feet, so that she may enter the ports on either side
of the channel at all hours of the tide.”
[Sidenote: The _Castalia_.]
To accomplish these objects, the company has built, at the Thames Iron
Works, a ship named the _Castalia_, which may be roughly described as
the two halves of a longitudinally divided hull, 290 feet long, placed
26 feet apart, and strongly bound together by a system of girders upon
which is erected, as may be seen by the following woodcut, a raised
deck inclosing cabin space. Under this deck in the water-way between
the halves of the hull, work a pair of paddle-wheels side by side upon
two separate shafts so that each wheel can be worked independently;
these wheels are driven by two pairs of engines, one pair in each half
of the vessel. The division and separation of the hull provides a deck
of no less than 60 feet in width, with a stability much greater than
any ordinary vessel possesses. Before and behind the engine, there are
various state saloons inclosed by the hurricane deck, running the whole
width of the vessel. These spacious rooms are handsomely decorated,
and provide various comforts seldom attainable at sea, while the top
platform affords a magnificent promenade 14 feet above the level of
the water-line. There are, also, decks below running fore and aft to
within a few feet of the double bow or stem in the separate hulls.
The _Castalia_ has accommodation for somewhere about 1000 passengers.
Her estimated cost was only 60,000_l._, but the actual outlay must
have been considerably in excess of that sum. Captain Dicey states
that, in designing this vessel, he was in some measure guided by
the performances of the “outriggers” that ply in the harbour of
Galle—“long cranky boats hollowed out of tree-trunks, and steadied in
the water by a log of timber fixed to the end of two wooden outriggers
which project some way from the vessel’s side.”[455]
[Illustration: CHANNEL PACKET “CASTALIA.” (BETWEEN DOVER AND CALAIS.)]
[Sidenote: The _Bessemer_.]
The other vessel, the _Bessemer_, is in many respects as different from
all other steam-ships afloat as the _Castalia_; but was constructed
with exactly the same objects in view, viz., to insure great speed,
light draught of water, and, more especially, the smallest possible
rolling or pitching motion. In a word, to afford to passengers crossing
the channel the quickest means of transit with the greatest amount
of ease, at an immersion so small, that the vessels could enter the
existing English and French harbours at all times of the tide. This
was the problem to be solved, and each inventor set about it in a
wholly different way. Nor was this surprising, considering that each
had been trained in an entirely different school. The projector of
the _Castalia_ is a sailor of great nautical experience; the designers
of the _Bessemer_ are an engineer and iron worker together with a
scientific shipbuilder. Perhaps, had the originators of the two schemes
consulted, amicably, instead of entering on a needless rivalry, they
would have produced a better and much swifter ship than the _Castalia_;
and a considerable sum of money expended on experiments would also have
been saved.
The _Bessemer_, of which an illustration is given on next page, was
designed entirely by Mr. E. J. Reed (late Constructor to the Royal
Navy), with the exception of the so-called “swinging saloon,” and was
constructed at Hull by Earle’s Shipbuilding and Engineering Company:
she is built entirely of iron, is a vessel of immense strength, and
has, as may be seen from the illustration, very much the appearance
of a breastwork turret ship of war. Her form is the same at bow and
stern and, for 48 feet from each end, she has a freeboard of about 3
feet only. Her extreme length at the water-line is 350 feet, and the
raised central portion, rising 8 feet above the low bow and stern, is
254 feet long, and, extending the whole width of the vessel, is 60 feet
over all. The ends, as will be perceived, are very sharp and low. The
engines and boilers, which drive the two pairs of paddle-wheels, are
fitted in the hold at either end of the raised portion of the vessel. A
series of deck-houses for private parties, refreshment bars, and other
rooms are carried fore and aft of the paddle-boxes on the breastwork
deck; there is, also, a covered walk between these and the windowed
sides of the “swinging saloon,” which rises about 8 feet through the
breastwork deck, with a flat roof pierced by two companion hatches.
[Illustration: S.S. “BESSEMER,” BUILT FOR SERVICE BETWEEN DOVER AND
CALAIS.]
The nominal horse-power of the engines of the _Bessemer_ is 750, but
they can work up to an indicated power of no less than 4600, and were
calculated to drive the vessel at a speed of from 18 to 20 statute
miles an hour. The two pairs of paddle-wheels are placed 106 feet
apart, and each wheel is 27 feet 10 inches in diameter, fitted with
twelve feathering floats. Many of the inventions first produced in
the _Great Eastern_ have been adopted also in the _Bessemer_, such as
hydraulic gear for starting the engines and for steering, telegraphic
wires leading from the bridges to the engine-rooms, and various other
ingenious contrivances to facilitate the working of the ship and her
machinery.
[Sidenote: Her swinging saloon.]
The “swinging saloon,” the invention of Mr. Bessemer, is in the centre
of the vessel, and is entered by two broad staircases leading to a
landing connected with the saloon by a flexible flooring. The saloon
itself is upheld on its axis by four steel supports, one at each end
and two close together in the middle. The aftermost of the two central
supports is hollow, and serves as part of the hydraulic machinery for
regulating the motion of the saloon itself, a spacious and elegant
apartment 70 feet in length, 35 feet wide and no less than 20 feet
high. It is presumed, that the hydraulic machinery will enable the
person in charge of it to keep the floor of this cabin perfectly level,
even when the ship herself is rolling violently in a heavy sea.[456]
Such are the vessels contemplated to supersede the existing Dover
and Calais packets. Although the _Castalia_ has not realised the
anticipated speed, and the _Bessemer_ has been found altogether
unsuitable for the service for which she was built, it would be
premature to condemn even her as a failure, while the _Castalia_, from
the comparative comfort she affords, is daily increasing in public
favour. I have not, however, hesitated to furnish my readers with full
particulars of these vessels, because they are interesting from their
novelty, and no great strides have, hitherto, been made, as we have
seen, in the art of ship-building or in the mode of propulsion, without
the aid of men, who have been bold enough to enter on novel and,
frequently, very costly experiments.
[Sidenote: The cigar ship built at Baltimore, 1858.]
[Sidenote: Similar ship built on the Thames in 1864.]
In these novelties, the Americans have, during recent years, taken
the lead, and, on this subject, I cannot omit to mention one of the
greatest maritime curiosities of this age, the cigar ship built at
Baltimore in 1858 by Messrs. Winans of that city,[457] who also,
subsequently, built another somewhat similar vessel on the Thames. Her
model in all respects resembled a cigar, or, in other words, she is a
great iron tube tapering away to a point at each end, and presenting
perhaps the strongest possible form for a ship, her deck being merely
the arc of a circle, on which were riveted staunchions for rails,
and between these a raised platform with seats on each side. She had
neither keel nor cutwater, and, in the language of the inventors, there
was “No blunt bow standing up above the water-line to receive blows
from heavy seas, no flat deck to hold, or close bulwark (as in the case
of ordinary vessels) to retain the water that a rough sea may cast upon
the vessel; neither mast, spars, nor rigging.” “The absence of sails,”
they add, “not only renders the parts thus abandoned by us useless,
but their abandonment in such a vessel as ours, will, we believe, most
materially promote safety, easy movement, or diminished strain of
vessels in rough weather; will save dead or nonpaying weight, insure
simplicity and economy of construction, and will give greater speed
in smooth water, less diminution of speed in rough water as well as
diminished resistance in moving power at all speeds in all water, and
result in shortening the average time of making sea voyages. The length
of our vessel,” they continue, “is more than eleven times its breadth
of beam, being 16 feet broad and 180 feet long. This whole length
is made available to secure water-lines, which are, materially, more
favourable to fast speed, and also to diminished resistance to moving
power of all speeds, than the water-lines of any of the sea-going
steamers now built, the best of which, looking to speed and ease of
movement, have a length of only eight times their breadth of beam:
the portion of our vessel not immersed, has the same lines as that
immersed, so that it will pass through the heaviest sea; while, from
its form and construction, no water can be shipped that will sensibly
affect the load, or endanger the safety of the vessel, which may, we
believe, be propelled at its highest speed in rough weather with an
impunity which is far from being attainable with vessels as now built,
to be propelled wholly or in part by sails.”
She was fitted with high pressure engines, and her boilers were on
the principle of those used in railway locomotives. With regard to
the propelling power it was a very novel application of the screw,
being a ring to which blades were attached at certain angles to
strike the water, the ring being itself made to revolve round the
vessel with great rapidity by the engines fitted in the centre of the
vessel; but Messrs. Winans do not furnish any further explanation
beyond stating that “Its position is such that its minimum hold of the
water will be much greater in proportion to the tonnage of the vessel
than the maximum hold of the propelling wheel or wheels in ordinary
steam-ships.” In the illustration to which I have referred there will
be found cross and longitudinal sections of this curious vessel.
[Sidenote: Perkins’s economical steam-engine,]
These “cigar” ships appear to have failed through want of sufficient
stability, or, more especially, on account of the novel and complicated
character of their machinery, yet the facility with which they can be
driven through the water may suggest a clue to further improvement
in the construction of ships or at least in their form. There is,
frequently, only a narrow line between the sublime and the ridiculous,
and, in the scheme of a madman (called mad because he proposes
something apparently wild and useless), there _may_ be found the germ
of really useful and grand inventions. Such fancies, therefore, ought
not, in all cases, to be cast aside with contempt, even though they may
create a smile from their novelty. Columbus was pronounced to be mad by
the most learned men of Spain, when he talked of exploring the Atlantic
in search of a world to the west. If Franklin, when he drew a spark
of lightning from the clouds by means of his kite, had spoken about
controlling that spark and rendering it the means of communication with
other parts of the globe, all men would have called him mad.[458] Even
the steam-boat herself was long considered the dream of a schemer.
Something useful may therefore still be learned from the plan of the
“cigar ship,” absurd as she may appear to the practical seaman. With
these feelings I read the other day with great interest a prospectus
brought casually under my notice of a plan for applying an improved
steam-engine (patented by Messrs. Perkins and Sons, Engineers, London),
to a vessel very similar in design to the cigar ship. The value of
this “economical steam-engine,” as it is termed, would seem to be the
greatly improved principle adopted by the patentees in the construction
of the boilers, which, they say, “will work with a pressure of steam
of 300 lbs. to the square inch, and on a consumption of coal not
exceeding 1½ lb. to the indicated horse-power per hour when working at
full speed.”[459] If anything like this can be really achieved, another
surprising stride will be made in the path of progress. The Lords of
the Admiralty, who have not hitherto been prone to adopt “novelties,”
appear to be of opinion that it can, as I understand that an engine
has been ordered from the Yorkshire Engineering Company on Messrs.
Perkins’s principle, and is now in course of construction to be fitted
on board her Majesty’s ship _Pelican_, a sea-going ship of war.
[Sidenote: and proposed fast boat,]
Combining this new principle with a form of hull somewhat resembling
the cigar, Messrs. Perkins propose “to construct and run an
experimental fast express steamer from England to New York for the
speedy crossing of the Atlantic, by passengers and mails as well as
parcels and light goods ... with a light draught of water, great length
and stability, and possessing steam power greatly in excess of any
steam-vessel now afloat.”
The general design of the steamer they propose is represented as
follows.
[Illustration]
It is proposed that she should be 800 feet in length with 40 feet beam,
and, having a flat bottom, it is calculated that she will not draw
more than 11 feet of water with her cargo, passengers, and 500 tons
of coal on board—the quantity estimated to be sufficient to take her
from Liverpool to New York. The midship part of the ship, of which the
following is a transverse section, will, Messrs. Perkins state, be
“400 feet in length, or about equal to that of a first-class Atlantic
steamer of the present day; she is to have every modern convenience”
to accommodate “1000 first-class passengers.” “This vessel,” the
projectors add, “is to be fitted with four separate and distinct
engines, working independent screws, two of which will be at either end
of the boat; they are to be of the collective working power of 12,500
horses, calculated to make the passage either way in 100 hours;” at the
average rate of 30 knots an hour.[460]
[Illustration]
Considering the great resistance which the displaced fluids must offer
to a speed on the ocean so enormous, it is not easy, with our present
state of knowledge, to conceive its realization; but the projectors are
sanguine of success, and, therefore, while recording the results of the
past, I place before my readers such information as is likely to be
interesting, or may prove useful for the future. History is of little
value, unless it teaches lessons to those who are to fill our vacant
places, and, even at the risk of wearying my readers, I have for this
reason gone more into detail than I should otherwise have done on such
subjects, with a full conviction, that we have still very much more to
learn, and especially as regards ships, than one man can hope to teach.
[Sidenote: The Engine of the _Comet_.]
Though the different stages of improvement on the steam-ship have been
carefully and fully recorded, it may be interesting to notice briefly
the progress which has been made in the marine steam-engine itself.
With that object I present my readers with a woodcut of the engine of
the _Comet_ constructed by James Watt and fitted into that boat by Mr.
Robertson, who is still living, and whose photograph accompanies the
illustration. This famous machine is now exhibited at South Kensington,
in the Museum of Patents.
[Illustration: “COMET” ENGINE.]
This engine, which was a “high pressure” one, is simple in construction
and light in weight, and, though many improvements have been made
since it first drove the _Comet_, to the wonder of the people on the
Clyde, few of these changes have embodied any important principles.
Although great strides have been made in the economy of fuel, and in
the harmonious working of engines, the general principle of their
action has undergone no change. By the reciprocating movements of a
steam impelled piston within a closed cylinder, the motive power of the
modern steam-ship is obtained, as in the _Comet_; yet, probably, on
no other subject has more mechanical ingenuity been lavished than on
the marine engine. Twenty years ago, almost every engineer had his own
peculiar type, comprising the “side lever,” the “steeple engine,” the
“grasshopper,” the “trunk,” the “oscillating,” and the “direct acting
engine,” with an endless variety of sub-combinations; but, after all,
these were only variations in the engine left to us by Watt, which, a
few years ago, might be seen in some of the small coasting craft plying
between the Mersey and the Dee and elsewhere.[461]
[Sidenote: Modifications in the construction of Marine Engines.]
It was only when surface condensation and the compound principle were
adopted, with improved boilers, and superior modes of raising steam and
of more effectually applying its power, that the marine engine made
any substantial advance. Thirty or forty years ago the usual pressure
in a marine boiler seldom exceeded from 3 to 4 lbs. above that of the
atmosphere, and, consequently, one of its most necessary fittings was
a safety-valve opening inwardly, and called a “vacuum valve,” so as
to prevent the boiler collapsing if the steam pressure should chance
to fall below that of the atmosphere,[462] but now the usual working
pressure is 60 lbs., and 300 lbs. is the pressure to which many men of
science think we are now advancing.