BOATS, RAFTS, AND MAKE-SHIFT FLOATS.
{Stopping leaky boats.}
In traversing wild countries, or examining their coasts, lakes, or
rivers, boats of some kind are indispensably necessary. The traveller
may, perhaps, be fortunate enough to possess one or more sound and
seaworthy. More frequently, however, it will be his lot to have either
some sun-dried leaky craft, crank canoe, or unstable raft, on which
to entrust his life and equipment, when his ingenuity and powers of
resource must be exercised in order to successfully contend with the
various shortcomings and failings he will certainly discover. If a boat
be very leaky, and is so rotten as not to be reparable by ordinary
means, cover the whole bottom with canvas to above the water line,
and paint it, she will then be perfectly tight, and also very much
strengthened and protected against external injury. Should the canvas
even be left unpainted, it will be found to reduce the leakage very
considerably. Turn the boat bottom upwards, take a breadth of canvas
for each side, or, if one breadth be not wide enough, increase it as
much as necessary by stitching on another. Lay one edge of this against
the keel, just below the garboard streak; fasten it with copper tacks,
or if with iron pump tacks, dip them previously in thick white paint,
varnish or boiled oil, to prevent them rusting the canvas. Wet the
canvas, and stretch it tightly, tacking it on the stem and stern post,
so as just to cover the insertion of the planking; then stretch the
upper edge to the moulding, just below the wash-streak, and nail it on
there. It might, if necessary, be carried right up to the gunwale; but,
in this case, it must be defended by a moulding or ribband of plank
from chafing against the side of a vessel or pier. In the case of a
gig, or long sharp boat, the canvas will give or stretch sufficiently
to adapt it to the required form; but in one with a short bluff bow and
stern, it must be fitted either by neatly folding the parts necessary
to be reduced, or by cutting and stitching it to the shape required.
{Make-shift outrigger.}
If a small boat crowded with passengers has to leave a wreck in a
heavy sea, she may be preserved from sinking or overturning by lashing
across the gunwales a couple of oars (cut, if there is time for it, to
a suitable length), and fastening to them, outside the boat, four small
water-casks or breakers; these would somewhat impede her progress, but
buoyancy and safety, and not swift sailing, are the chief requisites
in leaving a wreck. Breakers lashed under the thwarts, or bow and
stern sheets, are sometimes used; but, though they impart buoyancy to
a water logged boat, they take up room, and do not give the additional
stability which is afforded when they are placed outside.
[Illustration: BOAT WITH BREAKERS OR SMALL CASKS AS OUTRIGGERS.]
{Rafts.}
The cumbrous mass of spars, water-casks, and other stores, which want
of stowage under hatches often forces small vessels to carry upon deck,
may easily be converted into a perfectly safe and buoyant raft, ready
for instant use on an emergency, by the following arrangement of the
lashings.
The spars, amongst which will generally be found one fit to make a
topmast, another for a lower yard, and, perhaps, one or two more of
equal length, are laid fore and aft on either side the main hatch; the
water-casks, perhaps half a dozen on each side, are lashed to them;
while the space between is occupied by the long boat, and, perhaps, one
or two casks of meat or other stores, the whole being secured to the
deck; but all this floating power is neither connected in itself, nor
easily detachable from the sinking vessel.
It would not be much more difficult, when securing the row of casks
and spars on either side the hatch, to connect all these by short
spars lashed across the ends, as shown in the engraving, with a couple
more crossing near the bow and stern of the long boat, and bearing
others passing fore and aft beneath her bilge, to which she might be
secured by lashings perfectly independent of the gripes by which she is
fastened to the deck. Indeed, the chief requisite is to keep all the
lashings that connect the parts perfectly clear of those which hold the
raft to the vessel, so that, in case of need, it could at once be cut
clear, and allowed to float bodily off from the sinking hull.
[Illustration: THE SPARS AND WATER-CASKS CARRIED ON DECK WITH THE LONG
BOAT, USED AS A RAFT.]
We have stated the absolutely necessary points as simply as possible;
but many improvements might easily be suggested, such as the four
casks, at the ends, being pointed like conical buoys, so as to offer
less resistance to progress through the water; or that in two or more
of the aftermost casks a quantity of salt or preserved meat, biscuit,
or groceries should be kept in store for any emergency.
The smaller spars, of which there are generally plenty on board,
might be crossed upon this framework, so as to make a platform, and a
studding-sail spread over would prevent small things dropping through,
or help to support the crew or passengers.
The boat, however leaky or battered, would always be a place of
security and comparative comfort for the ladies or children, as the
power of floatation would be in the spars and casks. We believe the
Spaniards always endeavour to secure a boat on any raft they are
obliged to make, using her, no matter how much she may be stove or
broken, as a place of rest or refuge for the helpless or the weary.
It would be superfluous to give directions for the rigging of a mast
or steering apparatus. Seamen in emergencies would improvise these
according to the means at hand. Two or three small spars set up as a
triangle would carry sail, where, perhaps, a mast could not be stepped;
and the oars of the long boat, assisted by the trimming of such sail
as could be set, would be most likely the readiest appliances for
steering. Sometimes the "bridge" of a paddle steamer is made like a
caisson, and shipped in grooves, so as to float off should the vessel
sink. Small craft trading in the Indian islands, which carry a quantity
of bamboo as small spars, are thus provided with a natural substitute
for life-buoys, and a material for constructing rafts, or rendering
boats, though leaky as so many sieves, perfectly unsinkable. Rafts of
the large hollow stems of the bamboo are frequently used by fishermen
in the Indian archipelago.
{Life-belts.}
It may, perhaps, be of little use to suggest that before a vessel
leaves port attention should be given to the means of saving life
should she go down at sea. The possible foundering of a seaworthy
vessel is about the last thing a sailor thinks of; he trusts more
to his presence of mind and ready application of the means at hand.
Nevertheless, provision against danger would cast no imputation on
their manliness. The law compels a proportionate number of boats to
the complement of crew or passengers. Some owners provide cork belts
or jackets for the men, with mattrasses, pillows, or cushions of
cork, for the berths or sofas in the cabin; and it would be well if
every passenger making a sea voyage were to provide himself, and each
of those depending on him, with a life-belt, either of cork or of
inflatable material, and likewise see that these were not stowed away
in chests below the hatches, but kept at hand in the berths so as to be
available when wanted; and also that their use was perfectly understood
by those for whom they were provided.
We have seen a waistcoat with inflatable lining carried far into the
interior by one of the boldest elephant hunters in South Africa; and it
is stated that, after the sinking of the ill-fated steamer "Arctic,"
some of the passengers provided with belts floated on the surface of
the Atlantic for some days, giving, with a kind of desperate humour,
the names of different hotels to the piece of floating wreck at which
they had "put up last night," or intended to do so for the next.
It is a pity that none of the waterproof materials at present in use
are comfortable in ordinary wear, so that some common article of dress,
as a neck-tie, a belt, or sash, might be made so as to be inflatable
when an accident occurs.
Of all that we know at present, we should say the most effective,
simple, and secure from damage, is the ordinary cork jacket, of the
pattern supplied by the Life-boat Institution; it is sufficiently
buoyant, does not impede the exertions of the wearer, and cannot be
damaged by collision with rocks or other hard objects.
{Life-buoys.}
Perhaps the circular life-buoy now in common use is as good as any, but
it requires some address and strength on the part of the swimmer to get
it over his head to its proper place beneath his arms; it also lies
low on the water when thrown overboard, and if at any distance is not
easily seen by the swimmer or by the boat's crew who eventually go to
his assistance.
In the navy a breaker or small cask is used, with a staff six or eight
feet long passed through it, the lower end projects say three feet, and
is loaded with lead; the upper will stand from four to six feet above
the water, carrying a small red flag by day, or a port-fire by night.
The slings of the buoy are brought up to the taffrail and looped over
a small pin, which is withdrawn by pulling the trigger of a gun lock,
and a quick match led to this at night serves at the same time to
ignite the port-fire, so that the swimmer, the boat's crew, and the
commander of the vessel, have a conspicuous object to make for and are
so prevented from losing each other.
In larger vessels, we believe, two breakers are used, connected by
saddle-shaped iron bars; these enable one, or perhaps two men to sit,
with their shoulders considerably above the surface; while beckets
of rope all round would enable a greater number, say the crew of a
capsized boat, to support themselves with a fair chance of safety. The
size, however, of a life-buoy must always be limited. It is mostly
required to save one person who has fallen overboard; and, though
perhaps sufficient to support more, it should never be so large as to
be dangerous or inconvenient when taken into the boat put out in a
heavy and dangerous gale to the rescue.
Several fathoms of small line should be and often are attached to the
buoy, so that if it is let go in time the swimmer may catch it, and be
saved without the necessity of lowering a boat. We have seen a "life
line" of coir or cocoa-nut fibre, which is very buoyant, successfully
veered away to an overladen and endangered boat at a considerable
distance, when a hempen rope, which sinks by its own weight, would have
been of no service.
[Illustration: THE CALABASH FLOAT, MAKORO OR MAKARA, OF CENTRAL
AFRICA.]
{Calabash float.}
Nearly similar in principle to this last-named life-buoy is the
calabash float, described by Dr. Barth as being used by the natives of
Central Africa; it is simply a bar or plank of light wood, so laced to
the bottom of two large calabashes, that a man sitting on the bar, as
he would upon a saddle, will sink about waist deep, and may use his
hands to paddle himself across the stream.
{Reed boat.}
Our illustration shows how any buoyant article in the traveller's
possession might be used in this manner. The boxes shown on pp. 8 and
9 are designed expressly for such emergencies. Small water "vatjies,"
barrels, or tin cans, wooden boxes, even though somewhat leaky,
wrapped in canvas or two or three thicknesses of calico, which need not
be cut, would become sufficiently tight for a short voyage. To make a
reed boat, take reeds of any length you wish, a foot or two more than
half the length of your boat, lay them lengthwise on level ground, with
their small ends toward the ends of your intended boat, and their butts
overlapping each other by a foot or two; take cord or other material
for lashing, and interweave it with the reeds till the part in the
centre resembles a flat cheese-mat, then bend it round the hoop which
you intend for the midship frame. Insert smaller frames toward each
end, and finally gather up the ends of the reeds into a point, cover
this with some waterproof material, oiled calico or canvas, &c., or
canvas simply pasted with flour and water, and you will have a boat
buoyant and more or less durable according to the strength of the
material.
[Illustration: REED BOAT.]
About 1844 we made such a boat in Cape Town, using what are there
called Spanish reeds, which run between 10ft. and 15ft. in length,
three quarters or an inch in their greatest diameter, tolerably strong
and very buoyant; these were lashed on wooden barrel hoops with a
light deal keel and gunwale, and covered with two thicknesses of oiled
calico. There was no leakage, and our little skiff was so light that
with the assistance of a friend we easily carried her to and from the
house in which she was built. We often ventured beyond the shipping
anchored in Table Bay, our guns being secured by lanyards to the boat
in case of accident.
{Reed raft.}
On parts of the Nile where reeds abound, the natives make them up into
bundles of perhaps 8in. or 10in. in diameter at the larger end, and
tapering almost to nothing at the smaller; three or four of these are
fastened side by side, their points are made to curve up a little,
and they form a portable and convenient vessel for crossing the river
or conveying small cargoes of grain or other produce to market. The
stoutest part of the fan-shaped leaf of the doum palm is used as
a paddle. The float is not a heavy load for one man, when carried
overland, and one supported by a forked stick, or three or four with
their larger ends set on the ground and the smaller resting against
each other, form very good sun-shades, or huts to protect the inmates
against more inclement weather.
[Illustration: REED RAFT AS USED ON THE NILE.]
We have seen very useful and commodious rafts made by cutting very
large quantities of marsh reeds, fastening them up roughly in bundles,
laying these side by side, and then arranging another layer of bundles
across the lower tier. A few vines, or twisted reed bands, serve to
keep the bundles in their places, whilst a thick layer of loose reeds
on the top makes a level surface for the traveller and his baggage to
rest on. As the lower reeds become saturated with water others can
be cut, and added to the top. Long river voyages, floating with the
stream, have been accomplished on rafts of this description. Bamboo
canes, when they can be obtained in sufficient number, form excellent
rafts. They are also extremely valuable as outriggers, and outrigger
beams for canoes, adding greatly to their stability.
In other parts, where reeds are not so common, floats of wood are used
as an assistance to swimmers.
{Floats.}
When swimming our horses over many of the wide and rapid rivers of
Central India, the natives who were employed in guiding the animals,
first swam across with them without any artificial assistance, and
then returned for others with billets of a peculiarly light wood held
between their left arms and sides, under the shoulders; with these
appliances, they floated with extraordinary buoyancy, and made rapid
progress across the stream.
The inflated skins or intestines of animals, hollow gourds, earthen
pots, bladders, or bundles of bark, may be used as aids in crossing
rivers where canoes or rafts cannot be constructed.
{Cattle boat.}
On some of the great Indian rivers, large dish-shaped boats are used
for the conveyance of horses or cattle. A boat of this description is
very quickly made by first forming a basket-shaped framework of bamboo,
here and there interwoven; this is securely lashed together with strips
of raw hide, twisted cane, or common cord. When completed, the basket,
or frame, is turned upside down, on the ground, pegged fast with hooked
pegs cut from the branches of the nearest tree, and then covered with
raw bullock hides, which are sewn fast to the frame, and to each other,
grease being well rubbed into the seams. When complete, the boat is not
unlike a common tea-saucer--measures between fourteen and fifteen feet
in diameter, and is about two feet eight inches deep; made to these
dimensions, the hide boat will safely carry from three to four tons of
cargo. There is no possibility of upsetting it. When horses or bullocks
have to be conveyed in contrivances of this kind, it will be necessary
to lay branches of trees, and a good layer of reeds, or sedge grass, on
the bottoms, in order to prevent the animals from thrusting their hoofs
through the hides. The water-draught of hide boats is surprisingly
slight, from five to eight inches being sufficient to float one with
a full load on board. Long-handled shovel-shaped paddles are used to
propel them with, and a store of raw hide, and some tallow, and an
eyed awl, or large needle, for patching, enables the boat voyager to
execute with expedition all the repairs his leather craft may need. All
hide-covered boats, or floats, should be occasionally placed bottom
upwards, on shore, to dry, in order to render the skins more durable.
{Coracle.}
The coracle, so much used by Welsh fishermen, is made much after
the same fashion. A smooth level piece of turf being chosen, the
frame-sticks, just such as coopers use for making into hoops, are bent
and interwoven until the requisite form of the frame has been arrived
at, the bottom being upwards. The edge, which afterwards becomes the
gunwale, is formed by making a border of hazel-wand basket-work, the
ends of the frame-sticks are trimmed off even with this, and a covering
of Russia duck, or light canvas, is neatly sewn over all. The coracle
is then paid over with tar, or some other water-proofing material; one
thwart, or seat, is secured from each end to the framework, holes are
made in this for a leather strap to pass through, which enables the
fisherman to carry his coracle on his back. A single-bladed paddle,
like a baker's _oven pile_, is used to paddle with. Some considerable
practice is needed to enable a new hand to conduct, or, as it is
called, _drive_ a coracle--not a little caution is required in both
getting in or out. It is best, if possible, to depart from some shallow
sand-spit, or gravel bed, where the coracle may be shoved off into
deeper water, after the tyro has taken his seat, and established the
proper balance. In landing, it will be well to observe the same caution
until practice and experience give the confidence and dexterity which
they alone can confer. There is a peculiar stroke of the paddle much
used in coracle driving, to which the canoe man seldom has recourse.
This is gained by turning the left arm round the handle of the paddle,
until the hand is a short distance above the blade, and the shaft
rests against the shoulder. The paddle blade is then worked in a
figure-of-eight direction.
[Illustration: SKIN BOAT.]
{Skin boat.}
The size of skin or canvas-covered boats will usually be determined
by the available amount of skin or covering material. Any waggon ox
requires 8ft. of room to work in, and his skin would give a square of
leather of very little over 6ft.; the African buffalo would be about
the same, the eland somewhat larger, the black or brindled gnoo, the
koodoo, and some of the larger antelopes, rather less. Suppose you
have two ox skins; cut them straight across where the neck is at its
widest, and let the natives or waggon-drivers stitch them together
with strong sinews or thongs of hide, using a round awl or piercer,
to make a round hole that will close again, and not a sharp-edged one
that will cut the hide and so leave holes that will afterwards become
leaks. The sheet should be kept damp, not wet, by spreading ox-dung or
damp earth upon it till the frame is ready. Suppose it now to be 12ft.
long and 6ft. wide; you may make your boat of from 3ft. to 4ft. in
width, and 10ft. in length and 2ft. deep. If you care to have definite
stem and stern posts, it is very likely that poles may be found with
branches projecting at the required angle, but practically it is best
to let them curve more or less gradually into the line of the keel,
and for this purpose to choose two long straight poles; bend their
thick ends round a tree to rather more than the requisite curve, as
they will always straighten again; then, having chosen a flat piece
of stiff ground, make two holes 10ft. apart, for the thick ends of
your poles to rest in, bend down their thin ends, let them overlap,
the farther the better, and lash them together; then take another of
about 8ft. (or a foot longer on each side than the width of the skin),
and having curved this, stick the ends into the ground, about 3-1/2
ft. or 4ft. apart, and lash it where its centre passes under the keel;
do the same with two others, 18in. on either side, and you will have
the three midship frames; take two poles for each gunwale, join them
by overlapping their thin ends as before, lash them to these central
frames, so far from the keel that the edge of the skin will just cover
them, bend them till they come together at the bow and stern, let them
cross each other by a few inches, lash them tightly, and do not be in a
hurry to cut their ends too closely; the curve they take will guide you
in the insertion of the other frames. As you come nearer to the bow and
stern, forked branches of the proper angle may be advantageously used,
and along the sides, where the rowlocks come, forks may be left on the
extremities of the ribs to serve for them; a fork may also be lashed
in at either end for steering or sculling. Lay two or more ribbands
or bilge pieces along each side; fasten in such boards or poles as
you have for thwarts, and, when the whole is firmly lashed together,
spread over it the prepared hide and stitch it all round to the pole
that serves for gunwale, the hair, if you have not already scraped it
off, being inwards; grease plentifully while it is still wet, and then
let it dry; look carefully to the seaming; give this as much grease as
it will absorb, or you can afford; and when it is quite stiff, saw off
the superfluous timber ends, not too close; turn it up, and it is ready
for use: never let your boat lie in the water longer than is absolutely
necessary, and turn it bottom upwards whenever you haul it ashore. The
quagga hide is proverbially rigid; and we should think that if taken
off by merely making one slit along the belly, distending with dry sand
and letting it harden in the sun, it would make a tolerably safe boat
in smooth water for one person, without any other fitting.
We have heard of mules or transport animals being killed when water
carriage became available; their flesh jerked for future provision, and
even their ribs pressed into service to do duty without even a change
of name in the canoes for which their hides served as coverings.
{Russian cargo boat.}
In the United Service Museum is a very carefully-constructed model of a
Russian cargo boat from the Aleutian Islands, Commander Pike, R.N., the
donor, states that it carries 3-1/2 tons of fur sealskins. No metal is
used in it, the wooden frame is pegged or lashed together, and covered
with walrus hide. No dimensions are given; but, as very nearly three
feet are required for one oarsman, it is probable that the boat would
be 25ft. long and 8ft. wide near the stern; it will be noticed that
there are but single thole pins, and therefore grummets of rope or iron
must be fastened on the oars.
{Esquimaux boats.}
The other boat is the _oomiak_, or woman's canoe, of the Esquimaux.
The frame is made of drift wood and bone, often in very small pieces,
but so tightly pegged and lashed together with hide thongs, that the
compound seems fully as strong as a single piece; it is very neatly
covered with sealskin.
[Illustration: RUSSIAN AND ESQUIMAUX SKIN BOATS]
The method of constructing the frames of both these varies but
little from that we have just described, and we think will be made
sufficiently plain by the drawings copied by permission from the models
in the Museum.
The _kayak_, or man's canoe, is longer, sharper, and narrower, and is
completely covered with sealskin, with the exception of a circular
aperture in the centre, and from the edges of this a skin comes up
so as to tie tightly round the waist of the daring walrus or seal
hunter, so that not a drop of water can enter his little vessel; while
even if by any accident she should capsize, a vigorous stroke of the
double-bladed paddle will suffice to right her; the harpoons or other
weapons cannot possibly be lost, for bladders are attached to the lines
of those prepared for use; while the reserves are not cast adrift till
they are wanted. Marvellously ingenious as these fur-clad boat-builders
are, their frail craft are so difficult to handle that no ordinary
explorer can, without long practice, hope to use them with much
success. Still there are many points connected with their construction
well worthy of imitation.
The small sledge in the background has a screen of skins suspended
across it, in which a hole is made for the seal-hunter to fire through.
{Dug-out canoes.}
Canoes, hewn and dug from the solid tree trunk, are general and
valuable; and there are few portions of the earth where forest trees
grow to the requisite size that dug-out boats of some kind are not in
use. The natives of British Columbia construct very large and powerful
boats from the trunks of the huge cedar trees found in that country.
To the fortunate possessor of the axe, the adze, the gouge, and the
mallet, the formation of a dug-out canoe is a matter of comparative
ease; but to the Indian, unprovided with efficient tools, it is a
task of no ordinary magnitude, still he undertakes it boldly, falling
back on shifts and expedients to aid him in his toil. With such rude
implements as he may chance to be possessed of, he fashions the
exterior, flattens the surface of the log, and hews out the bow and
stern; then fire, kept within due bounds by the assistance of clay,
is brought to bear on the mass of timber, and as the wood ashes form,
and the wood becomes charred, a sharpened stone or thick sea-shell is
used to remove the mass and expose a fresh surface. By dint of labour,
patience, care, and perseverance, the shell of the boat is at length
formed, but lacking the curves and contour needed to render it stable
and seaworthy. Indian ingenuity again steps in to meet the difficulty.
The boat is filled to the brim with water, a huge fire is lighted, and
a number of stones heated to redness. These are one by one dropped into
the unfinished canoe, until the water is raised almost to the boiling
point; then when the wood is under the full and softening influences
of the heated water and steam, transverse bars of wood are driven in
one after the other, until the requisite breadth of beam and bilge are
gained. The water is then removed, and the canoe allowed to dry with
the bars in it, when the shape thus given remains as long as the boat
lasts. The removal of the bars and a little polishing up renders the
canoe fit for sea. It is not uncommon for craft of this description,
manned by crews amounting sometimes to as many as thirty, to brave the
turbulent and formidable seas of the Pacific Ocean, in pursuit of the
sea-otter, fish, &c.
We have seen many canoes of this description on the large rivers
of Central India, Australia, and on the Zambesi. The aborigines of
Australia are also in the habit of using bark canoes of the most
primitive form of construction. A sheet of bark of suitable size is
stripped from the nearest tree, the ends are guarded by little walls of
clay, and with a rude stick for a paddle, and a lump of moistened clay
for a fire-place, Corry, armed with his unerring spear, starts on a
fish-hunting expedition on the pond or river.
{Models of platform boat.}
During the years 1863 and 1864, while enjoying the hospitality of our
late friend Charles John Andersson, the chief, as he may be called, of
the persevering explorers of South-West Africa, we devoted considerable
attention to the construction of models of boats for the purposes of
discovery and river navigation, and of substitutes for them. The first
essential in the case before us was that of portability of the boat
or of the materials to make it; the second, facility of construction
when it reached the water, equal facility of separation into its
original parts at any interruption of the river course, and also of
reconstruction after it had been carried to a point where navigation
could be resumed. Another, and not less important condition, was, that
the materials should be such as were obtainable either in Damaraland,
or, at farthest, from some of the vessels that occasionally called
at its bays or harbours from Cape Town. The conversion of the usual
waggon gear into a float will be presently treated on; and we will now
describe the model we constructed for our boat, suggesting to explorers
that when they find themselves under the necessity of building, they
will save much time, trouble, and anxiety as to the result of their
labour, by proceeding nearly in the same way.
[Illustration: DOUBLE BOAT OF IRON OR COPPER CONVERTIBLE INTO A
SINGLE BOAT WHEN NEEDED.]
In the first place, we had decided on the use of sheet metal, plain
or galvanised iron in sheets of 6ft. by 2ft., or copper of 4ft. by
2ft., with screwed bolts and nuts in either case of exactly the same
metal as the sheets, so that any galvanic action should be impossible.
Next, the framework must be of wood; and as to form, it was absolutely
necessary that the boat should have beam and buoyancy enough to launch,
without fear of submersion through any rapid that had water enough to
bear her clear of rocks, and was not steep enough to be considered as a
waterfall. We purposed to put the materials together on the spot; and,
therefore, their weight only, and not the dimensions of the boat, were
taken into consideration with regard to waggon carriage.
For the mere purpose of passing from the head of the river navigation
to the sea, and thus proving that such navigation was possible, nothing
more than a single boat would be required. But for observing, mapping,
sketching, or otherwise improving to some useful result the various
opportunities of the journey, sufficient room must be provided for the
voyager to work comfortably on deck instead of sitting cramped up in
the stern-sheets, and we, therefore, decided on making ours capable of
being used as a double boat when the breadth of the river permitted it.
The advantage of being able to use each part when separate, as an
independent boat, so that the sharers in the voyage might trace
separate branches of the river, had to be balanced against the
disadvantage of having to take each of these singly through rapids,
which their dimensions might not insure their passing in safety, and
also against the fact that if the "double" is formed of two perfect
boats, they cannot attain great speed either in sailing or rowing, from
the fact that the volume of water admitted between the stems, which
may be, for example, 8ft. apart, must be compressed as it passes the
midship section, to 4ft. or 5ft., according to the breadth of beam of
the boats, and will again have to expand as it passes the gradually
increasing space between their "run," or after section. And the loss
of power thus expended in "heaping up water," although imperceptible
at a low speed, would become enormous if a higher rate were attempted.
Therefore we made our model so that when not required as a double, she
should become one single yawl or whale boat of 30ft. in length, and
6ft. beam, with 2-1/2ft. internal depth in midships, rising to nearly
4ft. at either end to enable her to shoot a tolerably strong rapid
without shipping water; the two sections were therefore each made like
half a whale boat, the outer sides having their proper curve and the
inner being perfectly flat, so that when used doubly the water might
pass without resistance between them, and when singly they might be
clamped together as one boat by screwed bolts through the keel, stem,
stern posts, and the inner gunwales.
Our first care was to seek out a block of soft, fair grained wood,
30in. long and 3in. wide, and to shape this truly to the form required
for one half section of our boat. We next provided a sufficiency of
planking, ribbands, &c., also on a scale of 1in. to the foot, and then
cut out from the thinnest tin case linings, forty pieces of 6in. by
2in., to represent our sheets of iron.
The dimensions of our boat had been previously so arranged that in the
midship section the depth of nearly 2 ft. on the flat side should leave
rather more than 4ft. of the iron available to form the curve on the
outer, necessary to give a half beam of 3ft.
In building our model we adopted slightly different plans with each
of the two sections. In that intended for the starboard side we laid
along the flat or inner side of our block or wooden mould a batten,
1/4in. square (representing one of 3in.) and 24in. long (each inch
being understood to represent 1ft.); to this we fitted the stem and
stern post, each 6in. in length, both exactly alike, curving and raking
forward and aft like those of a whale boat, so as to have an actual
height, before the keel was added, of 3-3/4in. We then laid along the
top of the flat side the inner gunwale 1in. deep, but as this would be
an impediment to the rowers when the sections were clamped together
to form a single boat, we cut out a piece (marked A, p. 106) 3/4in.
deep and 18in. long, so as to be removable at pleasure, the remaining
quarter then forming the stringer on which the thwarts would afterwards
be laid, the bottom of the three-quarter piece (A) having checks cut
in it to allow it to fit over them. We then took the piece of tin
representing the midship sheet, and drawing a line across it, 1-1/2in.
from its edge, bent it over the keelson, bolting the short end to the
thwart stringer, and bringing the longer one of 4-1/2in. round the
curve to the outer gunwale; nine sheets were required aft and nine
forward of this, and the only difference in laying them was that, as we
proceeded forward, the edge of each sheet overlapped by nearly 1/4in.
the one behind it, while in working aft, the edge of each had to be
inserted beneath that which lay before it. When the curves of the stem
and stern were reached, the sheets had to be cut to the required form
instead of being bent, and were bolted in their proper places. The
outer gunwale, 1/8in. thick and 3/4in. deep, was now laid on and bolted
to the metal sheets; another batten, 1/2in. wide, was laid from stem to
stern along the bilge, and the keel, 1/4in. thick and deep, was fitted
in its proper place and bolted through the metal to the keelson.
Our half boat was now sufficiently firm to be taken off the mould. A
short stringer of 18in. was laid internally upon the floor, and another
the whole length along the inside on which to lay the outer end of the
thwarts; and timbers, 1/4in. thick, were bolted in with their heads
projecting 1in. above the gunwale, so as to receive cross-beams of
1/2in. in thickness and 15in. long, by which the sections were kept
apart when used as a double boat. We considered it better to secure
the beams by cross-lashings than by bolts, which, if the boats worked
much in troubled water, would probably rend the parts they served to
connect. Along the gunwales, at short intervals, we intended to use
lighter cross-beams, probably of bamboo, that is if it were procurable;
but having carried out our model sufficiently to establish the general
efficiency of our principle, we did not think it needful to spend time
in completing every little detail, and this called forth the free but
friendly criticism of Mr. Charles Bell, the Surveyor-General of the
Cape colony, whose valuable and practical advice we take the liberty of
giving (see p. 115).
The only difference of plan adopted in building the other or port
section was that we built the whole of the inner or flat side of plank
1/8in. thick, by which we were enabled to cut 1-1/2in. off each sheet,
and this method in building a full-sized boat would have enabled us
to use copper sheets of 2ft. by 4ft. instead of iron of 2ft. by 6ft.
[Illustration: THE SECTIONS CLAMPED TOGETHER AS A SINGLE BOAT, OR USED
WITH CONNECTING BEAMS AS A DOUBLE.]
{Full-sized platform boat.}
In building a full-sized boat on this model, our plan would be to
make the flat side all of 3/4in. plank, with the stem, stern post, and
keelson all fast in their proper positions, and the keel left slightly
apart, so as to allow the sheets of metal, whether iron or copper, to
be inserted between it and the keelson. Then, laying the whole flat on
its side, we would cross cut with a fine tenon saw our wooden model
into eight pieces of equal length, and carefully enlarging the section
of each length would make as many temporary frames, and set them upon
the flat side, cutting checks in them to let in the stringers, which
when bent down to the flat at either end would very effectually give
the form of the boat. We would then fit the ribs, keeping them as light
as possible with due regard to strength, cutting them, if requisite,
out of wood selected with the proper natural curve; or, preferably,
using flexible wood, such as ash, in pieces 2in. broad, and 1/2in.
in thickness, and placing them not quite 2ft. apart, so that the
overlapping edges of the sheets might coincide with the ribs, and the
bolts might pass through them and also through the inner stringers, and
the outer ribbands and gunwales at all their points of intersection.
The ends of seven of these ribs, at nearly equal distances (as at
sheets 2, 5, 8, 10, 13 and 16, on p. 106), we would leave standing six
or eight inches above the gunwale, and about four inches from each we
would set up another of equal height, so that the cross-beams might lie
between them when required, and be secured by lashings passing down
to the first stringer (p. 110), or so that when the two parts were
connected as a single boat they might serve as rowlocks. Short struts
from the foremost pair of these would give great additional stability
to the masts.
In laying the deck, we should by all means endeavour to avoid
injuring the planks by boring needless holes in them, as they might
on an emergency be required for building a smaller boat. We should,
therefore, lash them with raw hide to the foremost and aftermost
crossbeams, and then laying lighter beams across near two or more of
the intermediate ones, fasten them down where requisite by strips of
the same material (p. 110).
For connecting the two sections, so as to form a single boat, we should
use screwed bolts 1/2in. thick, and 7in. long, passing at intervals of
about 16in. through both keels, stems, stern posts, and inner gunwales,
thus firmly clamping both the flat sides together. The two removable
portions of the inner gunwale (marked A) previously mentioned would, in
this case, be unshipped to allow the oars free play, as in illustration
on opposite page, and on page 106.
Copper is the only metal we should wish to use or recommend to others,
and all fastenings used with it must be of the same metal. We recommend
in this case, screwed bolts and nuts, presuming that the boat would be
built for a journey, the exigencies of which might oblige the traveller
frequently to take her to pieces and rebuild her; but as our own means
were at that time inconveniently limited, we made a calculation of the
comparative cost of plain and galvanised iron and of wood.
The mode of setting the sails, spreading the awning, &c., will be
sufficiently clear from the engraving (p. 106).
Our little model, when tried upon the flooded flats at Walvisch Bay,
sailed "like the wind," but had a tendency to bury the lee-bow, which
was easily remedied by ballasting the weather quarter; an oar was the
readiest and most convenient means of steering.
Estimate of material if the boat be built of copper, the flats or inner
sides being of plank:--
£ _s._ _d._
40 sheets copper, 2ft. by 4ft., 1lb. to the foot, }
at 1_s._ 6_d._ per lb., or 12_s._ each } 24 0 0
200 square-headed bolts, 1/4in. thick (with nuts), }
1/2in. grip for the skin and ribs, }
}
180 ditto ditto 1/2in. thick, 1-1/4in. grip }
for skin, ribs, and stringers, }
}
180 ditto ditto 3in. grip, for ribs, }
stringers, and timber heads, } 27 0 0
}
90 ditto ditto 6in. grip, for keel and }
keelson and for clamping the two sections }
together when used as a single boat, }
}
Equal to 650 bolts, averaging perhaps 10_d._ each }
4lb. copper rivets, assorted sizes, for repairs 0 12 0
6lb. copper nails, from 1in. to 3in. 0 18 0
1lb. rooves, for clinching nails 0 3 0
2 red deals, straight and clean, 21ft. long, 9in. }
by 3in., cut into six pieces of 3in. square, }
of which five will suffice to make the two }
keels and keelsons; the remaining piece would }
cut four stringers 3/4in. thick. (If these deals }
could be procured 24ft. long, four pieces would }
do this, and there would be no necessity for }
scarfing.) }
3 deals of 21ft. each, cut into four 3/4in. planks; }
and 1 deal, cut into one 1-1/2in. and two 3/4in. } 4 0 0
planks, would give fourteen 3/4in. planks, of }
which nine would suffice for the two flat sides, }
two for the gunwales, 4-1/2in. wide, and three }
with the spare piece mentioned above for the }
stringers and ribbands, while the 1-1/2in. plank,}
by careful adaptation of the requisite curves, }
would cut for the four stems and stern posts, }
}
Or equal to 6 deals, say }
2 galls. boiled linseed oil, in tin cans of 1 gall.
each 0 12 0
4 galls. raw linseed oil, in tin cans of 1 gall. each 0 16 0
28lb. white lead, in iron kegs of 7lb. each 0 14 0
14lb. red ditto ditto ditto 0 7 0
(The cans and kegs will be useful as cooking or water
vessels when emptied.)
30lb. resin 0 10 0
6 paint-brushes and tools assorted 0 6 0
Tinsmith's small shears or snips 0 4 6
Engineer's hammer 0 4 6
6 punches, from 1/8in. to 1/2in. 0 9 0
2 screw-drivers, large and small 0 3 6
2 screw-wrenches 0 9 0
1-1/2in. auger 0 1 6
1 brace, and set of bits, including rymers, }
countersinks, and bits for metal } 1 4 6
3lb. brass screws, assorted, up to 3in. 0 9 0
3 pieces unbleached calico, double width, for lug }
sails, awning, &c. }
12 copper or composition cringles, small sizes, for }
sails and various purposes }
Manilla rope, 10 fathoms, 3in., for mooring }
}
Ditto 50 fathoms, 1-1/2in. } 2 0 0
}
Ditto 50 fathoms, 1in., for running gear, &c. }
If the boat be built of iron the same size--
Forty sheets of plain iron, 2ft. by 6ft., at 4_s._ 6_d._ 9 0 0
All the bolts, screws, nails, and other fastenings, must be of plain
iron, and none of them must be galvanised.
Galvanised iron would not be much cheaper than copper, and would be
very intractable in working. We should not recommend it to a traveller
who intends to build his own boats in the wilderness and expects to
have to take them to pieces and rebuild them two or three times.
Tinned charcoal iron would be nearly as expensive as copper, and the
fastenings would also have to be tinned.
Plain iron is the only metal on which any saving could be effected,
even at the cost of additional labour. In this case, perhaps, three
times the amount of paint should be taken.
A mixture of red and white lead, with half boiled and half raw linseed
oil, should be used rather thickly for painting the inside of every
joint, and all the bolts, screws, or nails, should be thrown into
boiled oil, then taken out and allowed to drain and dry before they
are used. The boat must be thoroughly well painted after completion,
and the paint allowed to harden before she is put into the water.
If the boat is built of wood the same size--
Two deals and a half, as before, for keels, keelsons, stems, and stern
posts.
Four deals, each to be cut into four 3/4in. planks, for flat sides,
gunwales, and stringers.
Five deals, each to be cut into six 1/2in. planks, or equal to 230
running feet of plank, to stand, when cleaned, not less than 5/8, and
630 feet not less than 3/8.
5000 copper boat nails, 1-1/4in., with rooves.
28lb. iron nails, assorted, from 1-1/2in. to 3in.
2000 iron screws, from smallest size to 3in.
90 1/2in. screw-bolts and nuts, 6in. grip.
200 1/4in. screw-bolts and nuts, 3in. grip.
6 rods of 1/4in. iron, to cut into lengths for bolts, as required.
Paint, oils, &c., as before.
If the traveller can afford to carry two or four good 12ft. ash oars
and one of 14ft., by all means let him do so. Nothing is equal to them
for pulling or steering, but let him carefully preserve his treasures, and
not put them to any use that will twist or warp. If he engages natives
as a permanent crew, they may be taught to pull very well; but if he
hires temporary helps, let them bring their own paddles, and they will
make the boat go well enough.
For the connecting beams, the masts, yards, &c., we should prefer
bamboo, as being exceedingly strong in proportion to its weight. In
the Indian islands we have seen oars made of bamboo poles, with a
disk of wood about as large as a dinner plate lashed on the outer end,
and the men pulled very well with them. If bamboo cannot be
obtained, poles may generally be cut in the vicinity of a river; but the
traveller in Africa or Australia must not expect to find any wood that
will possess all the valuable qualities of good red deal, therefore we
would say take as much of this as you can carry, without inconveniently
incumbering your vehicles. The battens we were able to take to the
Zambesi astonished the natives there, they had never seen wood so
light, so strong, and so even of grain throughout its length; while
the fresh smell it gave out when cut was their constant theme of
wonder.
[Illustration: 1-8]
In 1864 Mr. Charles Bell, the Surveyor-General at Cape Town, who
has built and used double boats since 1850, favoured us with the subjoined
description of his method of construction:--
"My boats are only 12ft. long by 9in. wide, and 9in. deep, and 12ft.
by 14in. I have never made them more than 15ft. long, with a bearing
power of about 800lb. I have now built or directed the building of
about five good boats on the principle, easy and swift under oars or
before the wind under sail, and not very faulty even on a wind without
any false keel, but you can never sail quite close without one. Mine
were built to go through heavy surf all fore and aft, so that the wave
could strike nothing except sharp edges, and in surf they are first-rate.
"Iron is objectionable both on account of weight for carriage, and
liability to oxidisation in heat and moisture; nothing like canvas. A
bolt of No. 3, 2lb. of tin tacks, and a few needles and hanks of twine,
would be all I would bother myself to carry a mile. My first boat had
not an ounce of metal in her barring rowlocks and rowlock sockets,
and she cost me 17_s._ 6_d._ and some old plank, and carried me safely
through wall-sided breakers that would have troubled a whale-boat's
crew. Say you want a pair of 30ft. boats of 3ft. beam and depth,
tolerably safe even against snags and rocks. For each take a 30ft.
batten, 3in. by 2-1/2in. for keel; strut and erect on it knees' planks and
stem pieces as in Figs. 5 and 6, and section in Fig. 2 (p. 116).
"Trust greatly to lashing the frame; let the knees diminish in beam
from the centre to each end as in Fig. 1 (p. 116): draw in your side
pieces and planks, or rather press them down to your vertical side laid
on a flat surface, and you will have lines that will astonish you. Of
course you can raise stem and stern for the look of the thing, as I have
done, but it gives more trouble than it is worth. If you want to make
a safe lifeboat, tack tight over each knee-frame a piece of canvas (Fig. 3,
p. 116), leaving an edge loose and broad enough to be sewn on to the
outer canvas, loosely (so as not to interfere with the lines it will
naturally take), and be tacked to boards and battens where they come
in contact with it. I should have first said cover bottom and sides with
tightly-stretched canvas, in which operation a cobbler's pinchers are
most useful, but any others will do, then grease outside and in. If you
prefer tar and have it, well and good; then cover the deck in the
same manner, stitching knee-piece canvases as you go. You will
thus, if the workmanship be perfect, have in each half boat ten watertight
compartments, which it will be no easy matter to damage; snags
will be your worst enemies, and they cannot damage more than one at a
time under ordinary circumstances, whereupon the first landing and a
crooked needle with patch of canvas, twine, and grease, will make all
right. In the deck of each such compartment you should pierce a
marlinspike hole, button-hole the edges, and fit a plug, and as a large
boat cannot be so easily turned upside down as ours, you may have a
pipe, and any simple means of sucking out such bilge water as may get
in. Next as to connection of the boats. If you wish it sliding, so as
to increase or diminish the width between them when necessary, make
it on the lattice girder or rafter principle, and avoid weight, as in
Fig. 7; each not more than 6ft. from the centre. Stay and strut them
to points near the stem and stern, and they will be quite strong and firm
enough to support the mast and the awnings, with the other fittings.
The knee-pieces may be left projecting when required to meet the
sliding rafter; 1ft. between the boats will be quite enough, so 10ft.
of rafter will be quite enough. The sail may be a long low lug, split
if you like, to let it pass the mast when on a wind (Fig. 4). An oar
will steer, and easily control the extra face of sail on one side when
before the wind with the yard squared. But on a wind you must have
a keel, one that will slide over sunken rocks, and not be damaged even
when it takes them side on. It may fix with free play in the front
beam, and lay loose in cleats on the after one with a projecting arm
to be held upright by rope, as in Fig. 8.
"Of course there must be an opening between the deck planks, to
allow of its rise. Such a boat will carry at least a ton and a half of
cargo, if made sufficiently flat in the bottom, and it will require a
very stiff breeze and large sail even then to submerge the lee boat.
There is this advantage, too, that it cannot be done so quickly as to
prevent the remedy by luffing up or otherwise with ordinary vigilance.
Your goods and tarpaulins will be quite safe 6in. above the gunwale.
"Yours very truly,
"Charles Bell."
Just before returning from South Africa we found that the clever author
of "A Painter's Camp in the Highlands" had also gone through nearly
the same course of experiments, and had arrived, like us, at the
conclusion that the double form of boat was the most safe, convenient,
portable, and roomy on deck; and also that it was objectionable to have
the inner sides rounded, for the reasons before given. He therefore
finally adopted the flat inner side, and making his boats 30ft. in
length and 4ft. apart at the stem, increased the width to 4ft. 1in.
aft, so as to let the inclosed body of water glide away more easily. He
found, however, that after working out his own idea for his own use, he
was served with a notice for infringing a patent of which he had not
previously heard; and in like manner, after our return from Africa,
a description of a patent tubular life raft was submitted to Captain
George, at the Royal Geographical Society, and he immediately saw that
this was nearly identical with our own plan.
{Making inflatable boats safe.}
About 1853, a friend in Graham's Town, with whom we left our model of
the inflatable boat, subsequently used in Australia (see p. 48), made
one for his own amusement, on a small river. He had but two tubes,
each of them with a flat side toward the centre, with a small platform
between raised on crossed struts, one pair of which on each side were
very ingeniously made to carry the rowlocks, as in the next sketch
(Fig. 9). And, as he was doubtful of keeping the canvas of his boats
sufficiently air-tight, he either filled them, or proposed to do so,
with the bladders of oxen previously inflated, so that, even were
air to escape from the tubes which formed the boats, they could not
collapse. This, in itself, would be a hint which a traveller, who must
either shoot game or kill domestic animals for his followers, would do
well to bear in mind.
{Skiff of iron or copper.}
Iron, whether plain or galvanised, is sold in sheets of 2ft. by 6ft.,
while those of copper are 2ft. by 4ft. We recommend only the copper;
but economic or other reasons may very possibly compel the traveller to
use iron.
We have, for facility of construction, chosen the form of a Norwegian
praam, or wherry, with both ends alike. A semicircular section slightly
flattened at the bottom, without a keel, and rising with an easy sheer
to a sharp point at either end.
Eleven sheets of iron would be required; the central one being left of
its original shape and size, while the five at either end are cut to
the forms shown by the outer lines, and to the dimensions indicated
by the figures marked along the lower edge: thus, in No. 1, from the
centre there is no perceptible curve along the 6-foot side, but the
ends are sloped off, with straight although diagonal lines, so that the
side nearest the centre remains 6ft., while the farthest is reduced to
5ft. 9in.
In the next sheet, or No. 2, the side nearest the centre curves very
slightly; the segment taking off only one inch at either end, the
curved side (supposing we are now working from the centre forward)
overlaps the edge of No. 1 two inches, and it is therefore cut, not
to 5ft. 9in., but to 5ft. 10in., as No. 1 would be of that breadth, a
couple of inches back; the front side is left straight, but is reduced
in breadth to 5ft. 5in., and the after side of No. 3 is so much more
curved that the segment cuts off three inches. The figures in the
diagram will render the progressive diminution to the end sufficiently
plain. It will be seen that the end remains one foot wide; this is
usually filled in with a semicircular piece of plank, being quite sharp
enough for all practical purposes, and affording room for a rowlock
for a steering or sculling oar, or for a hole through which the boat's
painter may be passed. But, if desired, another piece of iron, which
may be called sheet No. 6, may very easily be let in to continue the
curve quite up to a point, as in the dotted end of Fig. 2. The half
section is given on the side marked iron of Fig. 3, the outer line
standing for the two edges of the central sheet, where the skiff is
4ft. wide and 1ft. 10in. deep. The next line, 1-1/2in. smaller all
round, is the section at the overlap of sheets Nos. 1 and 2; the third
line, two inches within the last, is at the edges of Nos. 2 and 3; the
fourth, three inches smaller, is at the contact of Nos. 3 and 4; the
fifth, six inches less, is at Nos. 4 and 5; and the sixth, diminishing
by nine inches, is the end of No. 5, which is filled in by a semicircle
of plank about five inches in diameter.
[Illustration: FIG 1-3]
The eleven sheets laid side by side would, of course, present a length
of 22ft., but the overlap and the segment of the curve cut from those
near the ends would reduce the length of the boat to 19ft.
Our diagram is on a scale of a quarter of an inch to a foot, but this
is somewhat small for the needful accuracy; therefore if anyone intends
to build, we would advise him to copy it on a scale of at least one
inch to a foot, in which case the halves will represent six inches and
the quarters three, and if he has a rule divided to one-twelfths, his
work will be much facilitated.
It would be better to make, as we have done in preparing this
description, a model block on which to test his work; indeed we would
advise this in all cases of intended boat building. If the boat is to
have a bow and stern distinct from each other, the model must be of the
whole length, but may be of only half the breadth. If both ends are to
be alike, it may be half the length and breadth, or one quarter of the
boat.
[Illustration]
In the present instance, take a piece of deal, as clean and
straight-grained as possible, 19in. long (or 21in. if you wish the ends
to come to a point), 4in. wide, and 3in. deep. Having smoothed this,
draw a line along the centre of the top and bottom, connecting them by
perpendiculars at the two ends; then on the top set off the line of
one-quarter of the gunwale, or outer line, taking the breadths from the
section in Fig. 3 (p. 119), and their distances from the centre, from
the elevation in Fig. 2 (p. 119), bearing in mind that the centre means
not either of the edges, but the middle of that marked as the central
sheet. It will save trouble to cut out a piece of card to the size of
this quarter, and trace the corresponding ones on the top and bottom of
your block; then copy the elevation given in Fig. 2, and trace this, as
before, on both sides. Now fix the block, with one end up in a bench
vice, and with a narrow frame saw cut along the gunwale lines nearly
to the centre, but do not cut them quite off, or you will lose your
elevation lines (if a friend helps you by guiding the other end of the
saw to the line on his side, you will be more certain to cut truly);
then turn the block one-quarter round, and cut the line at top and
bottom. Now place the other end uppermost, and repeat the process; and
lastly, finish the cuts, and detach the superfluous pieces.
Take a piece of card or thin stuff, and draw on it the midship section,
and cut this away, leaving a corresponding hollow; round off the edges
of your model until she fits this hollow, and of this size 2in. of
the centre must be left. Do the same with the diminishing sections,
forward and aft; then cut eleven sheets of card 2in. by 6in., mark a
central line across each, and also along the bottom of the model; lay
one sheet uncut across the midship section, and tack it there; mark
each of the others after the outlines given in the diagram (Fig. 1, p.
119), but test them in their places before cutting them. Take care also
that as you go forward each sheet overlaps that which is behind; but as
you work aft, insert the front edge under the one before it. You may
think this operation would be tedious; but having once gone through it,
you will build your full-sized boat with confidence. And let us again
assure you that time spent in obtaining a preliminary certainty of your
plan is saved over and over again when you come to actual work.
The sheets having been cut to the proper shape, set the two points of
the gauge 1/4in. apart, and so that the centre of the space between
them shall be exactly 1in. from the shoulder, and gauge these lines
all round the sheets, then, commencing from the centre of the longest
side, mark off spaces of 3in., and with a flat-ended punch, and a dolly
or matrix, or, in lack of that, a hard block of end wood, drive 1/4in.
holes on all the sides except those which are cut with a curve. Then
lay the centre sheet on the rib or mould, which, like the rough frame
on which bricklayers construct an arch, gives it its proper curve,
and, under one edge, lay the curved edge of the next sheet. Mark where
the holes should come; remove it and punch them, and fasten the two
sheets together temporarily with three or more of the screw bolts. Do
the same with the successive sheets towards each end, and you will
find that the copper shell, even without ribs or strengthening of any
kind, will assume its proper form and will be tolerably stiff. If the
sheets are truly cut, the result may be attained, even without a mould,
by driving one hole in the centre of the curved side, bolting it to
the straight edge of the other sheet, and then bending both round till
the curved edge coincides with the straight one. In this condition you
may decide on increasing the width of your boat by forcing the sides
farther apart; this will increase her sheer or elevation at either end,
and will diminish her depth, or you may incline to reduce her beam,
which will give her greater depth and will reduce the sheer till the
elevation of the gunwale presents nearly a straight line. It would be
better, however, if circumstances permitted, to adhere very nearly to
the form given in the drawing, and set up such a frame for working on
as is shown in the illustration on the next page.
[Illustration]
Drive as many rough stakes into the ground as the number of sheets in
your intended boat requires. Let these near the centre be three and a
half or four feet high, and these at the ends slightly lower. Stretch
a chalk line fore and aft, and see that all their centres are in true
alignment and 1ft. 10in. apart. The line should be fastened to two
posts in the same line as, but beyond these required for, the boat.
Let it come low enough just to touch the central posts, then measure
downwards from the line the amount necessary to be cut off those
towards the ends, so as to give the proper sheer. Next, commencing from
the centre, face off with a saw, or otherwise, as much of each post as
is needful to let each frame lie truly against it, noticing that as
the bottom of each is farther from the next than the top or part near
the gunwale, it is more convenient to face that side of the post which
looks towards the centre; then, with any rough slabs or planks, form
two moulds the exact size and form of your midship section, just as
bricklayers would do if they were building an arch. Nail these to
their proper supports, and on them bend the strips, 2in. broad by
1/4in. thick, you intend for ribs, letting only one edge rest on
the mould, while the other projects so far that you may have clear
space to bore through the centre the holes for your screw-bolts. Do
the same with all the others towards the two ends, confining them
with a temporary ribband where the gunwale is afterwards to be; or,
still better, leaving their ends 6in. too long, so that this ribband
may not interfere with the completion of the boat. Have a chalk line
stretched near the ground, along either side, parallel with the centre
one above, so that any deviation from the proper form can be measured
and corrected. Then lay on the sheets, insert the bolts, and screw
them up, adding a keel or centre batten, bilge streaks, and gunwales,
externally, and bottom boards to prevent the occupant treading on the
copper, and stringers for the thwarts inside. The projecting ends of
the ribs can be left where required for rowlocks, or cut off where they
are not.
The same process, with attention to the different dimensions, will make
you a copper boat, consisting of nine sheets, 2ft. by 4ft.; and this
will be 16ft. long, 3ft. 3in. wide, and 10in. deep; but if the gunwales
were made of plank, 4-1/2in. wide, or half the width of a deal, the
skiff would be quite deep enough to carry three or four persons in
moderately smooth water.
If you wish to build the same boat of wood, 3/8in. planks (not more
than 4in. wide) will be stout enough. The lines radiating from the
centre in the sectional drawing are given for the purpose of showing
the progressive diminution of the planks in width, from the central
section towards each end. These should be tested by cutting strips of
card and tacking them, like planks, on the block that serves as your
model.
This would be a very handy form for a dingy for the traveller's
personal use, as it might be taken to pieces, and the sheets laid
flat, occupying a space of 2ft. by 4in. in extent, and less than 1in.
in depth, or they might be rolled up in three bundles, of which each
must weigh less than 24lb., as the weight of the whole nine sheets of
copper before being cut would be only 72lb. The screw-bolts would weigh
probably more than the sheeting, but they could be divided into packets
of any convenient weight for carriage by native porters or otherwise;
and we should think that half a day would be quite sufficient to put
the whole together when wanted, or take it apart when done with. The
boat would pull or paddle, and would sail well enough off the wind,
but would not compete with a keeled boat close hauled; if the iron
sheets were used, she would, of course, be larger and heavier, and the
material would be less portable.
In the boat built for Mr. E. D. Young, for use on the Shire river and
Lake Nyassa, thin sheets of steel were at first proposed, but as these
could not be readily obtained, the best iron was used, and the edges of
these being turned upward and inward, formed the ribs of the boat, each
sheet being connected by bolts passing through this inward edge to the
next sheets before and behind it. This form of construction combines
all the elements of lightness, simplicity, and strength; but we do
not recommend it to a traveller who has to work up his own material,
because none but a skilled workman could turn inward a broad segment of
a sheet of metal, the outer surface of which has to present a curve. If
anyone doubts this, let him try it by folding half an inch of the edge
of a sheet of paper to a right angle with the other part, he will then
find it impossible for him to impart a curvature to the sheet without
tearing the upturned edge if he bends it outward, or wrinkling it if he
gives the contrary curve. If he wished to adopt this form of joining
the parts, his plan would be to cut up his sheets of copper into planks
4ft. long, and 8in. broad, then gauging a line all round 2in. within
the edge, cut out the squares at the four corners and turn up the
borders all round, he would thus have out of one sheet of copper 4ft.
by 2in., three planks 4in. wide, and 3ft. 8in. in length, a waste of
material that hardly any circumstance could justify.
{Metal boats.}
In 1858 we made a model of a metal boat, about thirty feet long, by
six feet beam, to carry a crew of sixteen men, each of whom, when it
was taken to pieces, should not find his share of the load to exceed
50lb. each of the thwarts; and the bow and stern sheets were continued
downward so as to form a water-tight box, the lower outline of which
coincided with the section of the boat, so as to supply the place of
ribs and convert her into a lifeboat. Indeed, we would advise that in
all metal boats some such portions should assume the form of lockers
or of reservoirs of air, so that, should the boat be swamped or become
leaky, she might not sink even when filled with water.
Our model was approved by Captain Washington, R.N., the Secretary at
that time of the Lifeboat Institution, and the builder to whom we
submitted it estimated the weight of the sheet copper and bolts of
the same to be employed in the hull at 260lb. and the cost at 60_l._,
while the internal fittings, somewhat less in weight, would cost 40_l._
This expense Dr. Livingstone considered to be too great; but, when we
reached the Zambesi, it was a matter of frequent regret that we had not
some form of boat portable enough to be carried over rough country to
rivers we wished to explore.
[Illustration: BOAT BUILDING ON THE LOGIER RIVER.]
One of the most beautiful little vessels we ever saw was built by
the wrecked crew of a French steamer. She was 40ft. long and 8ft. or
10ft. beam, clinker-built, with thin and narrow planks, without a joint
in their whole length, sawed out of the mainmast, and flexible ribs
about a foot apart and not more than one inch in breadth or thickness.
Her deck beams were, of course, somewhat more rigid, to sustain the
weight of the men who crowded her. She was said to have sailed eleven
knots.
{Wattled boat.}
Our friend, Mr. Wilson, an experienced African traveller, recommends a
wattled or basket-work boat, and in a country where rattans, osiers, or
flexible twigs, or green reeds, are obtainable, such a boat would be
both light and durable; but it would be open to objection on the score
of unavoidable roughness, and inequality of outer surface, which would
impede its progress through the water, and expose parts of the canvas
covering to constant liability to chafe whenever it touched the ground.
Even if a traveller intends to purchase or hire native canoes, it is
indispensable that he should have some small portable boat of his own,
sufficient at least to show the natives that he is not totally helpless
on the water and dependent on them.
In the case of our copper boat, illustrated at page 53, we have already
remarked that the difficulties of the road, and the mortality among Mr.
Chapman's cattle, obliged us to leave behind eight of the sections.
The method we adopted with the other four is shown in our full-page
illustration, representing boat-building on the Logier River.
On account of the danger from the tsetse, or poisonous cattle fly, our
friend's waggons could not be taken to the banks of the Zambesi, and
everything had to be carried by the Damara servants and hired natives
to Logier Hill, about eighty miles below the Victoria Falls, which
we had selected as the first place from which continuous downward
navigation was possible.
The building of the house will come more properly under its own
heading, and we will now only treat of what concerns the boat.
About the 3rd of October, or towards the close of the dry season, we
cut down a motchicheerie tree, which divided a little above the ground
into two tolerably straight logs of manageable dimensions. These were
first notched with the axe on the side we intended to "fall" them; the
cross-cut saw was then "put in" as far as it would go without nipping
from the pressure of the wood, and a notch being made on the other
side, the saw was used freely, the weight of the tree on the "falling"
side opening the cut as the work proceeded.
Fresh reports, however, caused us much uncertainty whether the Falls
of "Moambwa," or the rocks, were not still below the station, and some
time was therefore spent in exploring the river down to Sinamane's
Island, when, having ascertained that the rapids and other difficulties
appeared not quite impracticable, we set up the bow and stern sections
of one boat, connecting them by the ribbands of red deal we had been
able to carry up, and fitting at short intervals a series of frames on
central posts, as described at p. 122, and further supported by shorter
posts on either side, in a line with the gunwale streak, testing the
accuracy of all parts where correctness was required with plumb line
and level, and leaving the rest rough.
Our bench consisted of ten stakes, nearly 3ft. high, driven into the
ground, and two long straight poles laid fore and aft in their forks;
smaller poles were laid across these as closely as possible, and lashed
with the inner bark of the young branches of the "kookomboyon"--a kind
of stercuhia, which, while still moist, answers very well, but becomes
brittle in drying. The large smith's vice was firmly lashed to the
stoutest upright with raw hide, and forked poles were set diagonally to
resist the forward strain to which the bench was subject when wood was
being planed up.
It was just possible to get thin poles that would bend, but none were
sufficiently flexible to take the true curve required for the ribs,
and at the same time strong enough to bear the strain when they became
dry. Therefore we had to cut crooks out of the motchicheeries, the wood
of which looked something like coarse short-grained cedar; and first
burning away the light stuff from the tree cut down a month ago, we
found a great many available forks and curves.
We had great difficulty in selecting wood of a suitable size for
plank; trees too small, or too crooked, or of unsuitable wood, were
in abundance; while those of the wood we wanted were mostly too large
and unmanageable. Sometimes, at a distance, one would appear to be
small enough, but when we came near it would prove three or four
feet thick and sixty or eighty feet high, and had only seemed small
by comparison with those around it. One group of motchicheeries had
grown to maturity, throwing a wide-spread shadow around them; and a
young sapling had shot straight up from near their roots towards the
air and light; this was 9in. thick at the base, and 4in. at nearly
30ft. up; it proved impossible to "fall" the top outward, and it was
very difficult to clear from the other trees. We would have saved
labour by floating it down stream to our building-yard, but the wet
season was coming on, and the sap had by this time risen in the wood,
so that a small piece sunk when thrown into the water. The labour of
sinking a saw-pit would have been great, and besides this the expected
rains would have kept it always wet. We therefore erected trestles of
primitive construction; two triangles of forked poles, 6-1/2ft. long,
supported the ends of a stout cross-beam, firmly lashed to them with
buffalo hide, and for greater security lashed also to the stem of a
tree. The second trestle was destitute of this support, and therefore
had to be shored by longer poles, the forks of which took the necks of
the opposite triangles, while their hands were stopped by wedges driven
into the ground; for additional firmness, lashings were passed at the
points of intersection. Two stout poles were laid fore and aft upon
the trestles, and shorter pieces across served to rest the log upon;
there was some difficulty in lining the lower side, but by cutting
notches in the cross-pieces large enough to let the chalk line pass
freely, and "springing" it only by short lengths at a time, this was
accomplished. It was difficult to teach a young Dutch lad, strong as an
ox, and nearly as stolid, to saw with us; but at length the "sapling"
was cut, and one of the larger logs lifted gradually up by forming an
inclined plane with strong poles, and supporting it whenever we gained
a few inches of elevation by forks of various lengths lying ready for
that purpose. This having been felled before the sap was up proved much
easier to saw, and we had so far overcome the difficulties in our way,
that we had commenced laying the bottom plank of the first boat, when
the difficulty of providing food, owing to the retreat of the wild
animals to the pools which the rainy season was filling all over the
desert, and the fever among the people, seven Damaras, mostly women and
children, having died in Chapman's camp, and one of the most useful
men in ours, obliged us, for the sake of saving the rest, to retreat
to the highlands of the desert, and on the 3rd of February, 1863,
we hauled down our colours at Logier Hill, and commenced our return
journey.
{General hints on boat building.}
Two general rules in boat building should be borne in mind. First,
that clumsiness is not necessarily strength; and, secondly, that it
is much easier to build a sharp swift boat with moderate sheer, and
clear lines of entrance and run, than a short one with great beam,
bluff bows, and wide overhanging stern. The stem and stern post should
rake considerably, or even form parts of a curved line connected by
the keel, as if they are made too upright, not only is the boat more
difficult to steer when sudden alteration of the course is necessary,
but, if she is built of wood, so much curvature is required in the ends
of the planks that it is difficult for an inexperienced hand to lay
them. A rudder cannot be nicely fitted to a curved stern-post, but if
you decide to steer with one instead of an oar, make the stern-post
straight, and if you wish to diminish its "rake" or inclination, make
it one foot wide below and only a few inches at the top. A rudder is
much more convenient in ordinary cases; but, when great quickness and
power is required, nothing is equal to the steering oar.
In constructing a clinker-built boat some practice is required in
clinching the nails. First, a hole is bored with a gimlet of such a
size that the nail requires some driving, but very little, to force
it through. This prevents any lateral curvature, which would be fatal
to any attempt at clinching. A roove is then put over the joint and
driven home to the surface of the plank, and the end of the nail is
nipped off nearly close with a pair of cutting pincers. If you have a
spring-handled hammer to screw on to the plank so that the face of it
just rests on the head of the nail, so much the better, if not, you
must hold your heavy hammer with your left hand or get a mate to do so;
while with the edge of your little clinch hammer you tap as sharp and
lightly as possible on the centre of the cut end of the nail, causing
its sides to overspread the edges of the roove, when it can be nicely
smoothed off with the face of the hammer. When one plank has been laid,
the outside of its upper edge should be bevelled off so as to let the
lower edge of the next lie truly against it in the position required
by the curvature of the boat's side; and, to retain it in its place,
several pairs of "nippers" should be used. These are made of two pieces
of wood--say sixteen inches long and two inches square--cut a mortice
1/2in. wide by 3in. long in each, and pass through them a piece of hard
wood fitting the mortice loosely and 12in. long, so as to project 4in.
at either end, in each end of this bore three 1/2in. holes, not quite
in the central line, but one a little on one side of it, and the next
on the other, so as to avoid the risk of splitting two into one; have
pegs of hard wood or iron to put through these at the distance you may
require, then having adjusted one end of the nippers on the planks you
wish to hold together, drive a wedge between the other ends till the
grip is tight enough. A pair of these is shown in our illustration at
page 106. We believe that the traveller will find it generally most
advisable to build his boat bottom upwards.
{Cape-waggon boats.}
We should think that a traveller in South Africa, using the common
ox-waggons of the country, might easily, and without additional weight,
carry up with him all the wood necessary for the purposes of boat
building. The floor or bed-plank of the waggon is about thirty-six
inches in width, and from twelve to eighteen feet in length. Four
deals might be laid down for this. If they were twenty-one feet long,
they would project considerably behind. It is not considered expedient
to have the fore and hinder wheels too great a distance apart; but
then the projecting ends need not be loaded. The usual holes for the
fastenings of a waggon bottom should not be bored in them, but they
should be secured by lashings of raw hide, and the parts liable to be
chafed should also be protected with the same material. They might be
previously sawed into planks or battens of the required size, and then
tightly lashed together by thongs of raw hide, especially near the
ends, which would otherwise be liable to split with changes of weather
and rough usage. The waggon sides are usually a little more than two
feet high in front and three or more behind, and the framing of these
is an elaborate piece of work. Three deals 9in. wide would give 27in.
in height all along. These might be cut into 3/4in. or 1/2in. plank,
and again bound up with raw hide, like those of the floor, and thus the
traveller would have in one waggon nine deals, or more than sufficient,
if he built his boat of copper; while, by raising the sides to 36in.
with a couple more, he would have enough to construct her entirely of
wood.
In building the waggon-tent or tilt, as it would be called in England,
two methods are adopted in the Cape. The first is the kap-tent (E
on next page), which is regularly framed by the waggon builder with
stanchions about five feet high from the floor, neatly fitted to the
sides, at intervals of two feet or thirty inches; with bows of flexible
wood, forming a flattened arch about nine inches higher, across them,
and fore and aft battens, half-checked in, so that the whole presents
a smooth external surface to receive the inner sail, or cover of
painted canvas, which is laid on before the outer sail, or snow-white
neatly-fitted tilt, is drawn over all. The second is that which any
competent waggon driver can extemporise for himself with a sufficient
quantity of bamboo split into laths two or three fingers broad, stout
Spanish reeds, common hogshead hoops, or an adjacent forest, in which
flexible poles can be cut. His first care is to lift and shore up his
waggon so as to set free one or both of the hinder wheels, on the
circumference of which the flexible rods he intends for his bows are
bent and fastened down, and in doing this some care is requisite. The
rod must not be grasped by both ends and suddenly forced into the
curve, for one part may be weaker than the rest, and it may break
there, or be forced into an unsightly prominence; but, after having
been steamed, if possible, or, as is more commonly the case, laid for
two or three days in water or wet earth, the part intended for the
centre of the arch should first be bound tight and flat upon the tire
of the wheel, then the ends should be gradually pressed down by two
assistants, the principal watching the inequalities of the curvature,
and reducing them by passing turns of raw hide tightly over any parts
that have a tendency to irregular projections. The bows, which should
be about twelve or fourteen feet in total length, are now set up. Care
having been taken that the waggon sides stand truly, the front and
aftermost are first fixed, and the driver, if a man of average height,
stands on the centre of the waggon floor, holding the bow as fairly as
he can, with the crown of its arch about the level of his eye, say five
feet six from the floor, while his assistants, standing outside, fasten
the ends with screws or thongs of raw hide, to the styles or stanchions
of the waggon sides. The lifter, the dissel-boom, or other straight
and heavy pole, is now laid fore and aft upon the bows to keep them in
a level line, and also somewhat to flatten the crown of the arch and
expand it laterally. The laths or battens, fore and aft, are now lashed
on, and the result is a less sightly but stronger and more durable roof
for the exigencies of travel than the kap-tent. In the rear of the tent
(letter N) are shown the ribs of an ox or buffalo slung to the roof to
hang the saddles on.
[Illustration: CAPE WAGGON TENT (E) TO BE TAKEN OFF AND USED AS
A BOAT (G).]
Such a tent as either of these might be easily constructed so as to
be available for a boat whenever it might be required. First let the
stanchions, screwed or lashed to the waggon sides, rise to the usual
height of about five feet, and let the bows forming the flattened
arch across them be of any flexible material, but preferably of
straight-grained ash, such as is used for the better kind of tubs or
casks. The hoops of American flour barrels would answer well; they are
somewhat thin, but three might be laid together, and would be much more
flexible and strong than if one piece only was used.
Of these, supposing nine bows were used, three in the front and three
in the rear might be permanently secured to the stanchions, as in
the illustration (E, p. 131), while the three central ones should be
so fastened as to be readily cast off. The laths or battens, on the
contrary, should be securely fastened to the central bows, so as to
lift off with them, and only slightly to those at either end.
When the boat is required, it would be but an hour's work to cast off
the temporary fastenings. Take off the movable part of the top frame,
draw the ends of the battens together, as shown in the illustration
(G, p. 131), inserting at pleasure three or four smaller bows at
either end, and then taking the under sail--which is generally of
oiled canvas--fold down the corners so as to narrow it at either end
to the shape of the boat, and stitch or lace it with eyelet-holes
to the gunwale. A second thickness of unpainted canvas might always
be kept upon the roof between the inner and outer sail; and if this
were also laced on the boat, previously reversing the ends of the two
parts of canvas, so that if any portions had been chafed while on the
waggon they might not coincide with each other, the boat would be as
impervious to water as wooden boats generally are.
A few spare laths, previously lashed beneath the front and aftermost
bows of the tent, so as to remain there when those required for the
boat were removed, and perhaps two or three duplicate bows, would
prevent the necessity of leaving the vehicle destitute of cover while
the boat was being used.
{Sculling.}
Very often the explorer may find himself alone in a boat, or he may
wish to cross a river or pass from ship to shore or back again without
calling other men from their duties, and in such cases he who has the
power of managing a boat with a single oar, has a great advantage over
one who must ask the aid of another. We have been on boat trips where
the scientific officers have cheerfully manned the oars and pulled
against the stream all night, and when we volunteered to take our
turn, the answer was, "No; you can scull, and none of us can. Keep the
steering-oar, and help us onward with it." The first great difficulty
of the novice is to get the blade of his oar under water and keep it
there, and to make the loom rest firmly in the rowlock; the natural
tendency of the wood to float will at first seem insuperable, but as
soon as he has acquired the proper motion of the wrist he will wonder
that he ever had the slightest trouble in keeping the oar to its duty.
To learn to scull, go into a boat that is either fast to the shore or
vessel, or have a comrade to pull the other oar with you should you
fail. Then stand on the stern-sheets on the starboard side, so that
the right hand may be toward the bow of the boat; plant the left foot
on the starboard side seat, and advance the right to the middle of
the aftermost thwart; grasp the small end of the oar with the right
hand, and the loom with the left about eight or ten inches from it,
so that when the blade of the oar is horizontal the back of the hands
and arms may be uppermost and also in a horizontal line. You will find
that when the blade is supported by the water, the loom will not lie
in the rowlock; but now depress the wrists a little, raise the hands
till the blade forms an angle of 40° or 45° with the horizon, the edge
farthest from you being the highest; push the oar from you as far as
you can without losing your balance, then, as your first stroke ceases,
drop the hands and raise the wrists till the blade inclines as much
the other way, the raised edge being then nearest you; pull the loom
towards you, bending backwards at the same time as far as you safely
can, and you will find the arms in the proper position, with the elbows
at the side, the wrists lowered, and the hands ready to rise for the
stroke from you. Make short strokes at first, and do not hurry. Never
mind which way the boat goes, or whether she goes at all; stick her
nose in a mudbank, if you like, till you can keep your oar below the
surface, then give her her head; if your oar keeps under water she must
go forward, and by making a stronger sweep to starboard or to port,
you may steer her at your will. If you have a long narrow boat, she
will keep a straight course, but with a short dingy, she will incline
at each stroke a little to the right or left, and if you use the oar
regularly, her wake will show a series of graceful and equal curves.
In default of an oar, the bottom board may be taken up and used by
being laid on the point of the stem, the boat going then stern first.
Lightermen, on the Ouse, frequently scull their horse boats in this
manner. We have sculled a whale boat with one oar over the quarter,
_i.e._, in the crutch of the stroke oar, much as a gondolier does; but
tholes or rowlocks cut in the streak above the gunwale would not admit
of this. We give no directions for this or for the use of the plank.
When the novice can keep his oar blade under water, he can easily learn
how to adapt his new power to any emergency.
{Paddling.}
In paddling a canoe sit near the stern, looking forward, and with the
paddle on your right side make a long fair stroke; never mind the
deviation of her head to the left; but just before you lift your paddle
from the water, feather the blade of it by turning the right hand
inward from the wrist, turn the right elbow outward, and draw the left
hand inward across your breast; this will "port your helm" and bring
her to her course again.
If you have a mate who handles another paddle this is less needful; but
it is well to learn to paddle your own canoe practically as well as
metaphorically, single handed.
The kroomen about Sierra Leone use a canoe pointed at both ends and
with a great sheer; this, to a novice, is much more difficult to keep
to a true course, but a single krooman tossing his paddle from hand to
hand, without missing a stroke, will make her fly direct as an arrow
the way he means to go.
In the gunning boats on the Norfolk coasts, when strict silence is not
needed, and in canoes of some other countries, a double-bladed paddle
is used. The pole is grasped by both hands, like the balance-pole of a
rope-dancer, and equal strokes are given alternately, or the course is
changed by a more powerful stroke on the other side.
We have occasionally found that the power of handling the native
paddle has been of great service, for when we have wished to cross a
river to secure some specimen of wading bird, and the bargaining over
the hire would have occupied half a day, we have cut the matter short
by stepping into the canoe, paddling to the other side, shooting our
bird, and making the owners a sufficient present on our return; and,
while we advise that all travellers should most scrupulously regard the
rights of the natives, we must also intimate that they will not gain
the respect of savages by submitting tamely to extortion, or showing
themselves in any way afraid to maintain their own.
[Illustration: THE PROA.]
{Proas.}
The proas, or outrigger canoes, of the Malays and Indian islanders,
are so proverbially swift that they have fairly earned the title by
which they are generally known, of "flying proas." We have seen and
admired many varieties of these, as well as their fan-shaped sails,
sometimes of matting--bright and yellow while new, and deepening to
browner tints with age, and sometimes of snow-white cotton, or of white
alternated with cloths of blue or pink, and gay streamers floating from
the bending yards. The most common, and we may almost say the most
beautiful of these, were the little proas sailed by one man only, as
represented in our sketch. The hull consisted of a single log, perhaps
twenty feet in length, and hardly as many inches in depth and breadth;
the mast was about six feet in height; and the sail, of triangular
form, was laced to a couple of bamboos nearly as long as the canoe; the
thick ends of these crossed, and were lashed together at the tack of
the sail, and were made fast, loosely enough to give them sufficient
play, a little before the mast thwart; a loop attached to the upper
bamboo, or yard, at about six feet from the tack, was hitched over a
knob on the mast-head, instead of hoisting the sail by halyards, and
the sheet was attached by loops like kite loops, or bowline bridles, to
the lower bamboo or boom; in hauling to the wind, the simple gathering
in of the sheet trimmed the sail nearly down to the gunwale, as seen
in the distant proa, while in going free the slackening of it allowed
the sail to rise to the wind, till in the distance it reminded us of
the beautiful fan-shaped sea-shells, so often found upon the coast.
Stability was imparted under this enormous press of sail by two bamboos
twelve or fifteen feet long, and from four to six inches thick, kept
parallel to the boat at six or eight feet from her sides by two beams
of the same lashed across her gunwales, bending slightly downward,
but the foremost less so than the after, so that the fore end of the
outrigger might be raised slightly above the water, and not impede
the boat. The rudder was just like that of our own boats, except in
its fittings, which consisted simply of a rope grummet at its neck,
by which it could be hitched on to a timber head on either quarter,
and we believe it made so little difference that the boatman seldom
gave himself the trouble to shift it from one to the other. Of course
a tiller was used, as yokes and lines would have been inapplicable.
We cannot tell exactly their rate of sailing, but they passed our
swift and handy little schooner the "Tom Tough" with ease, even when
the breeze was at its freshest. The hull is generally whitened with a
mixture of chunam, or coral lime, and cocoa-nut oil, and the raised
ends are ornamented with devices in red or green, and sometimes a
red streak runs along the side. The tambanga, or waterman's boat for
passengers, has more beam, no outrigger, and a smaller though similarly
shaped sail.
Some of these proas were much larger, being fifty or more feet in
length, and then the sides of the log forming the bottom of the canoe
would be raised either by other planks sewn on or by a framework of
bamboo, with pieces cross cut from the leaves of the fan-palm, so
that the leaf ribs should stand vertically, stitched to them to form
the extra height of side, while a roof of the same was built over the
centre where cargo would be stowed, or over the after end, to form a
kind of cabin. When planks are used for raising the sides, they are not
sawn like ours, with economy of time, labour, and material, but are
laboriously chopped out of the solid; and, instead of being bent, are
patiently dubbed down to the requisite curve with numberless strokes
of the keen little Malay adze, projections being left on the inner
side through which holes are bored to lash them to the timbers, while
rows of holes along the edges admit of their being sewn together with
strips of rattan, and shreds of palm leaf laid along the seam and
confined by the tightening of the stitches, help to reduce the leakage,
which, if the vessel works at all in a sea-way, can never be entirely
stopped. They have two large sails similar in form to those of the
smaller proas, and sometimes a third, as a mizen. This is small enough
to be hitched over the mast-head, as before; but the others have to be
hoisted by halyards, and the long yards supported by propping them at
some distance from the slings by bamboo poles. The stays were formed
of slips of bamboo, and sometimes even of the poles, which, being well
fastened, would not only resist tension on the weather-side as well
as ropes, but on the lee would, by their rigidity, help to support
the masts. The outriggers of these were more elaborately framed with
a lighter set of beams, which supported stanchions and hand-rails,
so that, when the wind freshened, men might run out upon the weather
outrigger and, holding on by the hand-rail and stays, which lead from
the mast-head, serve as a counterpoise to the immense sails as the
boat dashed through the water. Reefing seemed never to be thought of,
and our own men soon got into the habit of speaking of a one-man or
two-man breeze, according to the number seen on the weather outriggers
of the proas that flew past us. The appearance of these vessels when
going wing and wing before the wind was very pretty. And others, in
the fashion of the Chinese junk, or in every modification of European,
engrafted on native form, afforded picturesque contrast, but need not
be here described.
The professional pirate has the outrigger only on the weather-side, and
this is frequently a log of light wood trimmed sharp at either end, so
that while its specific gravity is small enough to keep it buoyant, it
is still so heavy as not to be easily lifted out of the water, like a
bamboo, and when requisite, men sent on it, as in the former case, will
give it additional weight. But the chief peculiarity is in the hull of
the vessel, which is only half a boat, the lee-side being perfectly
flat, while the weather, or that toward the outrigger, is rounded as
usual; they will be frequently more than fifty feet in length, and six
or eight in breadth. We speak of the lee-side, because when the course
has to be changed--say in beating to windward--they do not go about
like a ship, that must go with her bows forward and be steered from
the stern, and therefore turns to receive the wind on the other side.
This would be fatal to the proa, as the buoyancy of the outrigger would
not prevent her from capsizing; and therefore, while the steersman
lets that end which is temporarily her bow fall off from the wind,
the men who have charge of the tack run round with it on the platform
to windward of the mast, the sheet is brought round to leeward, a
steersman takes his place at the other end, and that which has been the
stern now becomes the bow, and cleaves the waves at the rate of twenty
miles per hour. But no one need fear a proa with a double outrigger,
for she is not intended to lay alongside and board.
[Illustration: PROA WITH OUTRIGGER ON WEATHER-SIDE ONLY, TO SAIL WITH
EITHER END FIRST, AS REQUIRED.]
The engraving represents a proa with an outrigger only on the
weather-side; and not only would the sail be made to traverse by
shifting the tack to that end which, for the time being, was intended
to go foremost, but the mast is also fitted to be inclined forward
by slackening that which happens to be the back stay, and tightening
that which is _pro tempore_ the fore. Those which serve for shrouds,
being exactly abreast of the mast, are so arranged for the purpose of
facilitating this.
The commander of the United States Exploring Expedition, Charles
Wilkes, U.S.N., gives the following description of the Fejee canoes:--
{Fejee canoes.}
"They are superior to those of other islands. They are generally
double, and the largest are 100ft. in length; the two canoes are of
different sizes, the smaller serving as an outrigger to the other,
and are connected by beams on which a platform is laid, 15ft. wide,
and extending 2ft. or 3ft. beyond the sides. The bottom of each canoe
is a single plank; the sides are fitted to them by dovetailing and by
lashings passed through flanges left on each piece; the joints are
closed by the gum of the bread-fruit tree, which is also used for
smearing them. They have a depth of hold of about 7ft., and the ends
are decked for 20ft., to prevent their shipping seas. Amidships[B] they
have a small thatched weather house, above which is a staging on which
several people can sit. The canoes of the chiefs are much ornamented
with shells. The sails are so large as to appear out of proportion with
the vessel, and are of tough and pliable mats; the mast is half the
length of the canoe, and is stepped on deck in a chock; the yard and
boom are twice as long as the mast; the halyards are carried over a
crescent on the mast-head, they are bent on to the yard at a distance
from its tack or lower end nearly equal to the length of the mast. The
natives manage these vessels very expertly; they require much skill
in beating against the wind, for it is necessary that the outrigger
should be always on the weather-side, _as, if it gets to leeward, no
vessel is so easily capsized_; in tacking, therefore, the helm is put
up instead of down, until the wind is brought abaft the beam, then the
tack of the sail is carried to that end which was previously the stern,
but which has now become the bow, and the canoe is steered from the
other end; they carry sail even when it blows heavily, by sending men
on the outrigger to counterbalance the force of the wind. The canoes
are of logs hollowed and built upon; they make long sea-voyages, and
are provisioned only with yams; they are ornamented with _Cypræa-ovula_
shells, and carry white pennants; they carry water in cocoa-nut shells,
and, with fire and an 'ava' bowl, are equipped for sea. The chief
holds the end of the sheet, and it is his duty to prevent the canoe
capsizing; the steer oar has a large blade. In smooth water they sail
very swiftly, but the force of the sail strains them, and they leak
badly, so that the men are constantly baling. The planks are kept in
shape by small ribs as with us. The principal tool used is an adze,
which is now made by lashing a European plane iron to a crooked handle;
they are anxious to possess our tools, and especially the American axe.
Their knives are made of bamboo, cut into form while it is still green;
after being dried it is charred, which makes it very hard and sharp; a
second charring, followed by grinding on a smooth stone, will even fit
it for surgical operations."