LIFEBOATS.

A lifeboat--that is to say, the lifeboat of the present time--differs

from all other boats in four particulars. It is _almost_

indestructible; it is insubmergible; it is self-righting; it is

self-emptying. In other words, it can hardly be destroyed; it cannot be

sunk; it rights itself if upset; it empties itself if filled.

The first of these qualities is due to the unusual strength of the

lifeboat, not only in reference to the excellence of the materials with

which it is made, but also to the manner in which the planks are laid

on. These cross one another in a diagonal manner, which cannot be

easily described or explained to ordinary readers; but it is sufficient

to say that the method has the effect of binding the entire boat

together in a way that renders it much stronger than any other species

of craft. The second quality--that of insubmergibility--is due to

air-chambers fixed round the sides of the boat, under the seats, and at

the bow and stern. These air-cases are sufficiently buoyant to float

the boat even if she were filled to overflowing with water and crowded

to her utmost capacity with human beings. In short, to use an

expression which may appear paradoxical, she can carry more than she can

hold--has floating power sufficient to support more than can be got into

her. The third--her self-righting quality--is also due to air-chambers,

in connection with a heavy keel. There are two large and prominent

air-cases in the lifeboat--one in the bow, the other in the stern.

These rise considerably above the gunwale, insomuch that when the boat

is turned upside-down it rests upon them as upon two pivots. Of course

it cannot remain stationary on them for a moment, but must necessarily

fall over to the one side or the other. This is the first motion in

self-righting; then the heavy keel comes into play, and pulls the boat

quite round. Being full of water, the lifeboat would be comparatively

useless but for its fourth quality--that of self-emptying. This is

accomplished by means of six large holes which run through the floor and

bottom of the boat. The floor referred to is air-tight, and is so

placed that when fully manned and loaded with passengers it is a _very

little above the level of the sea_. On this fact the acting of the

principle depends. Between the floor and the bottom of the boat--a

space of upwards of a foot in depth--there is some light ballast of cork

or of wood, and some parts of the space are left empty. The six holes

above-mentioned are tubes of six inches in diameter, which extend from

the floor through the bottom of the boat. Now, it is one of nature's

laws that water must find its level. For instance, take any boat and

bore large holes in its bottom, and suppose it to be supported in its

_ordinary_ floating position, so that it cannot sink even though water

runs freely into it through the holes. Then fill it suddenly quite full

of water. Of course the water inside will be considerably above the

level of the water outside, but it will continue to run out at the holes

until it is exactly on a level with the water outside. Now, water

poured into a lifeboat acts exactly in the same way; but when it has

reached the level of the water outside _it has also reached the floor_,

so that there is no more water to run out.

Such are the principal qualities of the splendid lifeboat now used on

our coasts, and of which it may be said that it has reached a state of

almost absolute perfection.

The accompanying sections of the lifeboat exhibit the position of the

air-cases and discharging tubes. In Figure 1 the _shaded_ parts give a

side view of the air-cases. The line A A indicates the deck or floor,

which lies a _little_ above the level of the water when the boat is

loaded; B B is the water-tight space containing ballast; C C C are three

of the six discharging holes or tubes; the dotted line D D shows the

level of the sea. Figure 2 gives a bird's-eye view of the boat. The

shaded parts indicate the air-cases; and the position of the six

discharging tubes is more clearly shown than in Figure 1. There are

three covered openings in the floor, which permit of a free circulation

of air when the boat is not in use, and in one of these is a small pump

to clear the ballast-space of leakage. It will be observed that the

boat draws little water; in fact, there is much more of her above than

below water, and she is dependent for stability on her great breadth of

beam and her heavy keel.

These four qualities in the lifeboat are illustrated every year by many

thrilling incidents of wreck and rescue. Let us glance at a few of

these. First, then, as to the _almost_ indestructible quality. Take

the following evidence:--

On a terrible night in the year 1857 a Portuguese brig struck on the

Goodwin Sands, not far from the lightship that marks the northern

extremity of those fatal shoals. A shot was fired, and a rocket sent up

from the lightship as a signal to the men on shore that a vessel had got

upon the sands. No second signal was needed. Anxious eyes had been on

the watch that night. Instantly the Ramsgate men jumped into their

lifeboat, which lay alongside the pier. It was deadly work that had to

be done,--the gale was one of the fiercest of the season,--nevertheless

the gallant men were so eager to get into the boat that it was

overmanned, and the last two who jumped in were obliged to go ashore. A

small but powerful steamer is kept to attend upon this boat. In a few

minutes it took her in tow and made for the mouth of the harbour.

They staggered out right in the teeth of tide and tempest, and ploughed

their way through a heavy cross-sea that swept again and again over

them, until they reached the edge of the Goodwins. Here the steamer

cast off the boat, and waited for her, while she dashed into the surf

and bore the brunt of the battle alone.

With difficulty the brig was found in the darkness. The lifeboat cast

anchor when within about forty fathoms, and veered down under her lee.

At first they were in hopes of getting the vessel off, and hours were

spent in vain endeavours to do this. But the storm increased in fury;

the brig began to break up; she rolled from side to side, and the yards

swung wildly in the air. A blow from one of these yards would have

stove the boat in, so the Portuguese crew--twelve men and a boy--were

taken from the wreck, and the boatmen endeavoured to push off. All this

time the boat had been floating in a basin worked in the sand by the

motion of the wreck; but the tide had been falling, and when they tried

to pull up to their anchor the boat struck heavily on the edge of this

basin. The men worked to get off the shoals as only those can work

whose lives depend on their efforts. They succeeded in getting afloat

for a moment, but again struck and remained fast. Meanwhile the brig

was lifted by each wave and let fall with a thundering crash; her

timbers began to snap like pipe-stems, and as she worked nearer and

nearer, it became evident that destruction was not far off. The heavy

seas caused by the increasing storm flew over the lifeboat, so that

those in her could only hold on to the thwarts for their lives. At last

the brig came so near that there was a stir among the men; they were

preparing for the last struggle--some of them intending to leap into the

rigging of the wreck and take their chance; but the coxswain shouted,

"Stick to the boat, boys! stick to the boat!" and the men obeyed.

At that moment the boat lifted a little on the surf, and grounded again.

New hope was infused by this.

The men pulled at the hawser, and shoved might and main with the oars.

They succeeded in getting out of immediate danger, but still could not

pull up to the anchor in teeth of wind and tide. The coxswain then saw

plainly that there was but one resource left--to cut the cable and drive

right across the Goodwin Sands. But there was not yet sufficient water

on the Sands to float them over; so they held on, intending to ride at

anchor until the tide, which had turned, should rise. Very soon,

however, the anchor began to drag. This compelled them to hoist sail,

cut the cable sooner than they had intended, and attempt to beat off the

Sands. It was in vain. A moment more, and they struck with tremendous

force. A breaker came rolling towards them, filled the boat, caught her

up like a plaything on its crest, and, hurling her a few yards onwards,

let her fall again with a shock that well-nigh tore every man out of

her. Each successive breaker treated her in this way.

Those who dwell by the sea-shore know well the familiar ripples that

mark the sands when the tide is out. On the Goodwins these ripples are

gigantic steps, to be measured by feet, not by inches. From one to

another of these banks this splendid boat was thrown. Each roaring surf

caught it by the bow or stern, and, whirling it right round, sent it

crashing on the next ledge. The Portuguese sailors appeared to give up

all hope, and clung to the thwarts in silent despair; but the crew--

eighteen in number--did not lose heart altogether. They knew their boat

well, had often gone out to battle in her, and hoped that they might yet

be saved if she should only escape striking on the pieces of old wrecks

with which the Sands were strewn.

Thus, literally, yard by yard, with a succession of shocks that would

have knocked any ordinary boat to pieces, did that lifeboat drive during

_two_ hours over _two_ miles of the Goodwin Sands. At last they drove

into deep water; the sails were set; and soon after, through God's

mercy, they landed the rescued crew in safety in Ramsgate Harbour.

What further evidence need we that the lifeboat is almost, if not

altogether, indestructible?

That the lifeboat is insubmergible has been proved to some extent by the

foregoing incident. No better instance could be adduced to prove the

buoyancy of the life boat than that of the Tynemouth boat, named the

Constance, at the wreck of the _Stanley_, in the year 1864. In this

case, while the boat was nearing the wreck, a billow broke over the bow

of the _Stanley_, and falling into the Constance, absolutely overwhelmed

her. Referring to this, the coxswain of the lifeboat says: "The sea

fell over the bows of the Stanley and buried the lifeboat. Every oar

was broken at the gunwale of the boat, and the outer ends swept away.

The men made a grasp for the spare oars; three were gone--two only

remained." Now, it is to be observed that the coxswain here speaks of

the boat as being _buried, sunk_ by the waves, and _immediately_, as he

says, "the men made a grasp for the spare oars." The sinking and

leaping to the surface seem to have been the work almost of the same

moment. And this is indeed the case; for when the force that sinks a

lifeboat is removed, she rises that instant to the surface like a cork.

In order to prove the value of the self-righting quality, and the

superiority of those lifeboats which possess it over those which are

destitute of it, we will briefly cite three cases--the last of which

will also prove the value of the self-emptying quality.

On the 4th of January 1857, the Point of Ayr lifeboat, when under sail

in a gale, upset at a distance from land. The accident was seen from

the shore; but no help could be rendered, and the whole boat's crew--

thirteen in number--were drowned. Now, this was deemed a good lifeboat,

but it was not a self-righting one; and two of her crew were seen

clinging to the keel for twenty minutes, by which time they became

exhausted and were washed off.

Take another case of a non-self-righting boat. In February 1858 the

Southwold lifeboat, a large sailing-boat, and esteemed one of the finest

in the kingdom, went out at the quarterly period of exercise in rough

weather, and was running before a heavy sea with all sail set when she

suddenly ran on the top of a wave, broached to, and upset. The crew in

this case were fortunately near the land, had on their cork belts, and

were dragged ashore, though with difficulty; but three amateurs, who

were without belts, perished.

These two cases occurred in the day-time.

The third case happened at night--on a very dark stormy night in October

1858. A wreck had been seen about three miles off Dungeness, and the

lifeboat at that place--a small self-righting and self-emptying one

belonging to the Royal National Lifeboat Institution--put off, with

eight stout men of the coast-guard for a crew. On reaching the wreck,

soon after midnight, it was found that the crew had deserted her; the

lifeboat therefore returned towards the shore. On nearing it she got

into a channel between two shoals, where she was caught up and struck by

three heavy seas in succession. The coxswain lost command of the

rudder; she was carried away before the sea, broached to, and upset,

throwing her crew out of her. Immediately she righted herself, cleared

herself of water, and the anchor, having fallen out, brought her up.

The crew, meanwhile, having on cork belts, floated, regained the boat,

clambered into it by means of the life-lines hung round her sides, cut

the cable, and returned to shore in safety.

So much for the nature and capabilities of our lifeboats. We cannot

afford space to say more in regard to them than that they are the means,

under God, of saving many hundreds of human lives every year on the

coasts of the United Kingdom, besides a large amount of shipping and

property, which, but for them, would inevitably be lost. The noble

Institution which manages them was founded in 1824, and is supported

entirely by voluntary contributions.

Along with the lifeboat we may appropriately describe here another

species of vessel, which, if it does not directly rescue lives, at all

events prevents disaster by giving timely warning of danger. We refer

to:--

Man on the Ocean: A Book about Boats and Ships · 第 21 / 65 题