MACHINERY.

Not the least wonder of our day is the improvement in the machinery of

steam-vessels of all kinds.

The engineer’s department of a first-class cruiser or battle-ship is

a bewildering and wonderful sight to one not accustomed to it. The

complicated engines, with their numerous cylinders, which use the steam

over and over, seem almost too delicate, and too like a fancy creation,

to be capable of driving the propellers at such a rate as they do.

Instead of the rude levers of former days, these giant machines are

managed by the turning of wheels which look like playthings as compared

with the forces which they control so easily.

The boilers not only serve to drive the main engines, but there are

others devoted to different uses; among which the principal are the

distilling of salt into fresh water, and thus giving an abundant

supply of one of the very first necessaries of life, and rendering

the vessel and the crew independent of the shore in that respect. It

is also most conducive to health; for much of the disease found on

ship-board, within even recent times, was due to the character of the

water obtained from the shore. Then there are the electric dynamos, and

their boilers which must run when the ship is at anchor, as well as

when she is under weigh; while her steam steering-gear, when in motion,

renders her guidance very easy in the hands of one man, when four or

six would be required at the wheels of vessels in the old days.

[Illustration: U. S. S. BALTIMORE.

Protected cruiser. Twin screw. Main battery, four 8-inch and six 6-inch

breech loading rifles. Secondary battery, four 6-pounder, two 3-pounder

and two 1-pounder rapid fire guns, four Hotchkiss revolving cannons and

two Gatlings. Thickness of protective deck, 4 inches on slope, 2¹⁄₂ on

the flat. 36 officers, 350 men.]

As for war-ships, the vessel is under complete control of one man, the

Captain, who, with the helmsmen, occupies the fighting-tower. He is

informed by indicators of what is going on all over the great craft

below him, and his orders to the engineers, to the gun divisions, and

to all other parts, are transmitted in the same way. But ordinary

speaking-tubes and such matters are not forgotten, in case hostile

shot should destroy the other means of communication; while, far

below the water-line, is the old-fashioned steering-wheel, secure

from shot or shell, to be used in case the more delicate and more

exposed steering-gear should be shot away. The number of trained and

experienced men which such a complicated machine as a modern war-ship

or first-class passenger vessel requires, is very great. There is less

need for old-fashioned sailors--who could go aloft in any weather to

reef and furl--but there is seamanship still required to navigate,

to heave the lead, to man and manage boats, and many other things,

beside the mere drilling and working of artillery and small arms. It

requires some training even to be able to take care of one’s self in

bad weather, especially in a large ship, where places to hold on are

far apart. Of course, in a modern ship the engineer’s force, as well

as those immediately in charge of dynamos, of electric lights, and of

search-lights, comprise a much larger proportion of the whole ship’s

company than in former times; and the vigilance, experience, and

foresight which have to be displayed in the depths of the vessel is

equal to that required upon the spar-deck and bridge.

Naval battles of the world · 第 167 / 200 题