AN UNSINKABLE TITANIC

AN
UNSINKABLE
TITANIC

EVERY SHIP
ITS OWN LIFEBOAT

BY
J. BERNARD WALKER
Editor of the Scientific American

NEW YORK
DODD, MEAD AND COMPANY
1912

Copyright, 1912, by
DODD, MEAD AND COMPANY

Published, July, 1912

THE QUINN & BODEN CO. PRESS
RAHWAY, N. J.

To
THE MEMORY OF THE CHIEF ENGINEER OF THE TITANIC,
JOHN BELL,
AND HIS STAFF OF THIRTY-THREE ASSISTANTS,
WHO STOOD AT THEIR POSTS IN THE ENGINE-
AND BOILER-ROOMS TO THE VERY LAST,
AND WENT DOWN WITH THE SHIP,
THIS WORK IS DEDICATED

PREFACE

It is the object of this work to show that, in our eagerness to make the ocean liner fast and luxurious, we have forgotten to make her safe.

The safest ocean liner was the Great Eastern; and she was built over fifty years ago. Her designer aimed to make the ship practically unsinkable—and he succeeded; for she passed through a more severe ordeal than the Titanic, survived it, and came into port under her own steam.

Since her day, the shipbuilder has eliminated all but one of the safety devices which made the Great Eastern a ship so difficult to sink. Nobody, not even the shipbuilders themselves, seemed to realise what was being done, until, suddenly, the world's finest vessel, in all the pride of her maiden voyage, struck an iceberg and went to the bottom in something over two and a half hours' time!

If we learn the lesson of this tragedy, we shall lose no time in getting back to first principles. We shall reintroduce in all future passenger ships those simple and effective elements of safety—the double skin, the longitudinal bulkhead, and the watertight deck—which were conspicuous in the Great Eastern, and which alone can render such a ship as the Titanic unsinkable.

The author's acknowledgments are due to the "Scientific American" for many of the photographs and line drawings reproduced in this volume; to an article by Professor J. H. Biles, published in "Engineering," for material relating to the Board of Trade stipulations as to bulkheads; to Sir George C. V. Holmes and the Victoria and Albert Museum for data regarding the Great Eastern, published in "Ancient and Modern Ships"; to Naval Constructor R. H. M. Robinson, U.S.N., for permission to reproduce certain drawings from his work, "Naval Construction," and to Naval Constructor Henry Williams, U.S.N., who courteously read the proofs of this work and offered many valuable suggestions. The original wash and line drawings are by Mr. C. McKnight Smith.

J. B. W.

New York, June, 1912.

CONTENTS

ILLUSTRATIONS

CHAPTER I
INTRODUCTORY

Among the many questions which have arisen out of the loss of the Titanic there is one, which, in its importance as affecting the safety of ocean travel, stands out preëminent:

"Why did this ship, the latest, the largest, and supposedly the safest of ocean liners, go to the bottom so soon after collision with an iceberg?"

The question is one to which, as yet, no answer that is perfectly clear to the lay mind has been made. We know that the collision was the result of daring navigation; that the wholesale loss of life was due to the lack of lifeboats and the failure to fill completely the few that were available; and that, had it not been for the amazing indifference or stupidity of the captain of a nearby steamer, who failed to answer the distress signals of the sinking vessel, the whole of the ship's complement might have been saved.

But the ship itself—why did she so quickly go to the bottom after meeting with an accident, which, in spite of its stupendous results, must be reckoned as merely one among the many risks of transatlantic travel?

So far as the loss of the ship itself was concerned, it is certain that the stupefaction with which the news of her sinking was received was due to the belief that her vast size was a guarantee against disaster—that the ever-increasing dimensions of length, breadth, and tonnage had conferred upon the modern ocean liner a certain immunity against the dangers of travel by sea. The fetish of mere size seems, indeed, to have affected even the officers in command of these modern leviathans. Surely it must have thrown its spell over the captain of the ill-fated Titanic, who, in spite of an oft-repeated warning that there was a large field of ice ahead, followed the usual practice, if the night is clear, and ran his ship at full speed into the zone of danger, as though, forsooth, he expected the Titanic to brush the ice floes aside, and split asunder any iceberg that might stand in her way.

Confidence in the indestructibility of the Titanic, moreover, was stimulated by the fact that she was supposed to be the "last word" in first-class steamship construction, the culmination of three-quarters of a century of experience in building safe and stanch vessels. In the official descriptions of the ship, widely distributed at the time of her launching, the safety elements of her construction were freely dwelt upon. This literature rang the changes on stout bulkheads, watertight compartments, automatic, self-closing bulkhead doors, etc.,—and honestly so. There is every reason to believe that the celebrated firm who built the ship, renowned the world over for the high character of their work; the powerful company whose flag she carried; aye, and even her talented designer, who was the first to pronounce the Titanic a doomed vessel and went down with the ship, were united in the belief that the size of the Titanic and her construction were such that she was unsinkable by any of the ordinary accidents to which the transatlantic liner is liable.

How comes it, then, that this noble vessel lies to-day at the bottom of the Atlantic in two thousand fathoms of water?

A review of the progress of those constructive arts which affect the safety of human life seems to show that it needs the spur of great disasters, such as this, to concentrate the attention of the engineer and the architect upon the all-important question of safety. More important than considerations of convenience, economy, speed of construction, or even revenue-earning capacity, are those of the value and sanctity of human life. Too frequently these considerations are the last to receive attention. This is due less to indifference than to inadvertence—a failure to remember that an accident which may be insignificant in its effect on steel and stone, may be fatal to frail flesh and blood. Furthermore, the monumental disasters, and particularly those occurring in this age of great constructive works, are frequently traceable to hidden or unsuspected causes, the existence and potentialities of which are revealed only when the mischief has been done. A faulty method of construction, containing in itself huge possibilities of disaster, may be persisted in for years without revealing its lurking menace. Here and there, now and then, some minor mischance will direct the attention of the few to the peril; but the excitement will be local and passing. It takes a "horror"—a "holocaust" of human life, with all its attendant exploitation in the press and the monthly magazine, to awaken a busy and preoccupied world to the danger and beget those stringent laws and improved constructions which are the earmarks of progress towards an ideal civilisation.

Not many years ago, there was being erected across the St. Lawrence River a huge bridge, with the largest single span in the world, which it was believed would be not only the largest but the strongest and most enduring structure of its kind in existence. It was being built under the supervision of one of the leading bridge engineers of the world; its design was of an approved type, which had long been standard in the Western Hemisphere; and the steelwork was being fabricated in one of the best equipped bridge works in the country. Nevertheless, when one great cantilever was about completed, and before any live load had been placed on it, the structure collapsed under its own weight. One of the principal members—a massive steel column, five feet square and sixty feet long—crumpled up as though it had been a boy's tin whistle, and allowed the whole bridge to fall into the St. Lawrence, carrying eighty men to their death! The disaster was traced to a very insignificant cause—the failure of some small angle-bars, 3½ inches in width, by which the parts of the massive member were held in place. No engineer had suspected that danger lurked in these little angle-bars. Had the accident happened to a bridge of moderate size, the lessons of the failure would have been noted by the engineers and contractors; it would have formed the subject, possibly, of a paper before some engineering society, and the warning would have had results merely local and temporary. But the failure of this monumental structure, with a loss of life so appalling, gave to the disaster a world-wide notoriety. It became the subject of a searching enquiry by a highly expert board; the unsuspected danger which lurked in the existing and generally approved methods of building up massive steel columns was acknowledged; and safer rules of construction were adopted.

It took the Baltimore conflagration to teach us the strong and weak points of our much-vaunted systems of fireproof construction. Only when San Francisco, after repeated warnings, had seen the whole of its business section shaken down and ravaged by fire, did she set about the construction of a city that would be proof against fire and earthquake. It was the spectacle of maimed and dying passengers being slowly burned to death in the wreckage of colliding wooden cars, that led to the abolition of the heating stove and the oil lamp; and it was the risk of fire, coupled with the shocking injuries due to splintering of wooden cars, that brought in the era of the electrically lighted, strong, and incombustible steel car.

The conditions attending the loss of the Titanic were so heartrending, and its appeal has been so world-wide, as to lead us to expect that the tragedy will be preëminently fruitful in those reforms which, as we have shown, usually follow a disaster of this magnitude. Had the ship been less notable and the toll of human life less terrible, the disaster might have failed to awaken that sense of distrust in present methods which is at the root of all thorough-going reform. The measure of the one compensation which can be recovered from this awful loss of life and treasure, will depend upon the care with which its lessons are learned and the fidelity with which they are carried out.

Unquestionably, public faith in the security of ocean travel has been rudely shaken. The defects, however, which are directly answerable for the sinking of this ship are fortunately of such a character that they can be easily corrected; and if certain necessary and really very simple changes in construction are made (and they can be made without any burdensome increase in the cost) we do not hesitate to say that future passenger travel on a first-class ocean-going steamship will be rendered absolutely safe.

The duty of a passenger steamer, such as the Titanic, may be regarded as threefold: She must stay afloat; she must provide a comfortable home for a small townful of people; and she must carry them to their destination with as much speed as is compatible with safety and comfort. Evidently the first condition, as to safety, should be paramount. When it has been determined to build a ship of a certain size and weight (in the case of the Titanic the weight was 60,000 tons, loaded) the designer should be permitted to appropriate to the safety elements of her construction every pound of steel that he may wish to employ. In a vessel like the Titanic, which is to be entrusted with the care of three or four thousand souls, he should be permitted to double-skin the ship, and divide and subdivide the hull with bulkheads, until he is satisfied that the vessel is unsinkable by any of the ordinary accidents of the sea. When these demands have been met, he may pile deck upon deck and crowd as big a boiler- and engine-plant into this unsinkable hull as the balance of the weights at his disposal will allow.

Unfortunately the Board of Trade requirements under which the Titanic was built—and very conscientiously built—proceed along no such common-sense lines. Instead, the Board many years ago framed a set of rules in which the safety requirements were cut down to such a low limit, that the question of a ship's surviving a serious collision was reduced to a mere gamble with Fate. The Board of Trade ship may fill two adjoining compartments, and then with the top of her bulkheads practically level with the sea, in the opinion of the Board, she will have a fighting chance to live in smooth water!

The Titanic filled at least five adjoining compartments, and hence,—thanks to these altogether inadequate and obsolete requirements, she is now at the bottom of the Atlantic; and, thanks again to the requirements of the Board as to lifeboat accommodations, over fifteen hundred of her passengers and crew went down with the ship!

CHAPTER II
THE EVER-PRESENT DANGERS OF THE SEA

Boswell, that faithful, if over-appreciative chronicler, tells us that Dr. Johnson once described an ocean voyage as "going to jail with a chance of being drowned." Had some one quoted the grim witticism of the doctor in the spacious dining-room of the Titanic on the night of April the fourteenth, it would have provoked a smile of derisive incredulity. Going to sea in the cramped quarters of the frail sailing packet of Johnson's day was one thing; crossing the Atlantic at railroad speed in the spacious luxury of a 60,000-ton liner was quite another. Yet, five hours later, when the vast bulk of that noble ship was slanting to its final plunge, the pitiless truth was brought home to that awe-stricken crowd that, even to-day, travel by sea involves the "chance of being drowned."

The remarkable immunity of the high-speed Atlantic liners from such accidents as befell the Titanic has been due in part to careful seamanship and in part to an amazing run of good luck. Of this there can be no doubt whatever. On a recent occasion the subject was brought up for discussion in the officers' quarters of one of the fastest liners. In answer to the writer's question as to whether the dangers of running at high speed through fog or ice-infested regions were not enormous, one of the officers frankly admitted that, not only were the risks most serious, but the immunity from such disasters as that which befell the Titanic was to be explained on the ground of sheer good fortune. "I well remember," said he, "that the first time I found myself in charge of the bridge on a ship that was running through fog at a speed of over 20 knots, I fairly shivered with a sense of the possibilities of disaster that were involved. To-day—well—familiarity, you know——"

Let it not be supposed, from the heading of this chapter, that it is the writer's purpose to draw any lurid picture of the dangers of ocean travel. These are no greater to-day than they were before the Titanic went down. Icebergs have swept down from the Arctic seas from time immemorial, and year by year they will continue to throw the shadow of their awful menace across the lines of steamship travel. Fog, with its ever-present dangers of collision, will continue to infest the ocean highways; and always, the half-submerged derelict, a peril scarcely less than that of the iceberg, will continue to sail its uncharted course over the high seas.

The strength of the impulse to build unsinkable ships will be exactly in proportion to our realisation of the dangers which beset ocean travel. The toll of human life exacted in the recent disaster will lose its one possible compensation, if it fails to impress deeply the very serious lesson that since the sea is not man's natural element, he can hold his way safely across its surface only at the cost of most careful preparation and eternal vigilance.

Protracted and amazing immunity from disasters of portentous magnitude has bred in us something of that very contempt for the dangers of the sea above referred to. We have piled deck upon deck until the "floating palace" of the sea towers twice as far above the water-line as it extends below it. So rapidly have we added weight to weight and horsepower to horsepower, that both the mass and the power have been quadrupled. The giant steamship of to-day, as she rushes through the black night and the all-obscuring fog, represents a potential engine of destruction, for which no parallel can be found in the whole field of human activity.

Do you doubt it? Then learn that on that fatal night when the Titanic bore headlong into the icefield, she embodied in her onrushing mass an energy equal to that of the combined broadsides of our two most powerful battleships, the Florida and the Utah. Which is to say that, if the two dreadnoughts had discharged their twenty twelve-inch guns, at point-blank range, against the iceberg which sank this ship, they would have struck a combined blow of less energy than that delivered by the Titanic. And every one of these guns, be it remembered, delivers its shell with an energy of 50,000 foot-tons—sufficient to lift either of these battleships nearly two and a half feet into the air.

Of the serious risk to a ship of collision with an iceberg, it is superfluous to say anything here. The swift sinking of the world's greatest steamship has driven that lesson home, surely, for all time to come. But there are two other forms of accident on the high seas—collision with another ship and the running down of a derelict—whose possibilities of disaster are scarcely less. For if the huge steamships of our day, moving at high speed, are such potential engines of destruction, it follows that the damaging effects of collisions are proportionately increased.

If a 60,000-ton ship, such as the Titanic, while running at high speed, were struck on the beam by a vessel of large size, it is quite conceivable that the outside plating of three of her compartments (not merely the "two adjoining" of standard shipbuilding practice) might be broken in, or the seams and butts started, before the energy of the colliding ship was absorbed and the two vessels swung clear of each other. The average length of the compartments of the Titanic was about 53 feet. At 21 knots she would move forward about 35 feet in one second. Hence, in a few seconds' time (even allowing for her slowing down due to the drag of the other ship), her enormous energy of over 1,000,000 foot-tons would cause her to grind along past the broken bow, surely more than the 100 feet or so which would suffice to involve three compartments. If three compartments amidships were opened to the sea, it would mean the admission of some 12,000 to 15,000 tons of water.

Even more insidious is the menace of the abandoned and water-logged ship—the justly dreaded derelict—which, floating low in the water, and without a light to reveal its position, may lie directly in the path of the high-speed ocean liner. So slightly does the derelict project above the surface, that it is almost impossible of detection by night from the lofty position of the lookout on a modern steamship.

Another risk of the sea, which, because of long immunity from disaster, is in danger of being overlooked or underrated, is that of fire. The structural portions of a ship and its engine- and boiler-plant, being of metal, are proof against fire; but the stateroom partitions, the wooden floors and ceilings, the wainscoting, and the hundreds of tons of material used in decoration and general embellishment, to say nothing of the highly inflammable paint-work and varnish, constitute a mass of material, which, in the event of a serious fire, might turn the whole interior of a large passenger ship into one vast cauldron of flame. Fortunately, the bulkhead is as effective in confining a fire as it is in localising an inflow of water in the event of collision. Therefore, some of the bulkheads of the under-water portion of all passenger ships should be continued (of lighter construction) right through the decks reserved for passenger accommodations, to the topmost deck of the ship.

But, perhaps, after all said and done, the greatest perils of high-speed ocean travel are to be found in that spirit of nautical sangfroid, or indifference to danger, which, as this disaster has proved, may in time begin to characterise the attitude even of so experienced a navigator as the late captain of the Titanic.

Protection against the dangers of the sea may be sought in two directions: First, the enforcement of rules for more careful navigation; second, the embodiment of non-sinkable construction in the ship.

The protection afforded by the one is limited by the fallibility of human nature.

The protection afforded by the other is exact, absolutely sure, and will last as long as the ship itself.

If we would make ocean travel safe we must make the ship, as far as possible, unsinkable. In other words, the naval architect must adopt that principle of construction, common in other lines of mechanical work, which has been aptly designated as "fool-proof." In the building of folly-proof ships, then (the term is here used in a modified sense and with not the least reflection upon that fine body of professional men whose duties lie on the bridge of our ocean liners), is to be found the one sure protection against the perils of the sea.

We are well aware that the merchant ship, like the warship, is a compromise, and that the ingenuity of the naval architect is sorely taxed to meet the many demands for speed, coal capacity, freight capacity, and luxurious accommodations for passengers. All this is admitted. But the object of these chapters is to show that in designing the ship, the architect has given too little attention to the elements of safety—that, in the compromise, luxurious accommodations, let us say, have been favoured at the expense of certain protective structural arrangements, which might readily be introduced without any great addition to the cost of the ship, or any serious sacrifice of comfort or speed.

Under the sobering effect of this calamity, caution and moderation are the watchwords of the hour. Steamships are leaving port crowded with lifeboats of every size and shape. Steamship routes have been moved far to the south of the accustomed lines of travel. The time occupied in passage is longer, distances are greater, and the coal bill runs into larger figures.

But competition is keen, dividends must be earned, and amid all the fret and fever of our modern life, memories, even of stupendous happenings, have but a brief life. Steamship routes, under the strong pressure of competition, will tend to edge northward on to the older and shorter sailing lines. Immunity from disaster will beget the old sangfroid; and with the near approach of the age of motor-driven ships, we may look for an increase in speed such as the old Atlantic has never witnessed, even in the years of fiercest contest for the blue ribbon of the seas.

Let it be so—provided, always provided that, made wise by the lessons of the hour, we write it in our laws and grave it deep in the hearts of our shipbuilders, that the one sure safeguard against the eternal hazards of the sea is the fireproof and unsinkable ship!

CHAPTER III
EVERY SHIP ITS OWN LIFEBOAT

Say what we will, it cannot be denied that the lifeboat is a makeshift. The long white line of boats, conspicuous on each side of the upper deck of a large passenger ship, is, in a certain sense, a confession of failure—an admission on the part of the shipbuilder that, in spite of all that he has done in making travel by sea fast and comfortable, he has not yet succeeded in making it safe.

Progress in shipbuilding and especially in the construction of fast and luxuriously appointed ships has been simply phenomenal, particularly during the past two decades. There is no art in the whole field of engineering that has made such rapid and astonishing strides; and it is not stretching the point too far to assert that man's mastery of the ocean is the greatest engineering triumph of all time.

The fury of the elements, as shown in a heavy storm at sea, has always been regarded as one of the most majestic and terrifying exhibitions of the forces of nature. When the sailing packet was struck by the full fury of a gale, the skipper lay to, thankful if he could survive the racket, without carrying away boats, bulwarks, and deck gear. Frequently, with canvas blown out of the bolt ropes, he was obliged to run under bare poles, at the imminent risk of being swamped under the weight of some following sea. For many a decade, even in the era of the steamship, it was necessary, when heading into a heavy sea, to slow down the engines, maintaining only sufficient speed to give steerage way. To-day, so great are the weight and engine power that the giant steamship, if the captain is willing to risk some minor mishaps to her upper works, may be driven resistlessly along the appointed lines of travel regardless of wind and sea. So far as the loss of the ship from heavy weather is concerned, man has obtained complete mastery of the ocean.

The writer well remembers a trip to the westward on one of the subsidised mail steamers, built to naval requirements, which was made at a time when the ship was striving to accomplish the average speed of 24½ knots for the round trip from England to America, which was necessary before she could claim the government subsidy. In the run to the eastward, the ship had averaged for the whole passage 25 knots; therefore to win the coveted prize, it was necessary, on the return passage to New York, to maintain an average of 24 knots. As it happened, two hours out from Queenstown it began to blow hard from the southwest, and for the next four days the wind, veering from southwest to northwest, never fell below the strength of half a gale. On the fourth day out the wind rose to full cyclonic force, and against the most tempestuous weather that the North Atlantic can show, the ship was driven for twenty-four hours into what the captain's log-book designated as "enormous head seas." She averaged a speed of 23 knots for the whole four days of heavy weather, and came through the ordeal without starting a single rivet, or showing any signs of undue strain in her roughly-handled hull.

The large and powerful passenger steamer of to-day is proof against fatal damage due to wind and sea. True it is that these ships occasionally reach New York after a stormy passage, with porthole glasses broken, windows smashed, and rails and other light fittings carried away; but these are minor damages which in no way affect the integrity of the ship as a whole.

If, then, the shipbuilder has made such wonderful strides in the strength of his construction and in the development of engine power, is it not a strange anomaly that he should have so far failed in his attempt to provide against sinking through collision, as to be under the necessity of advertising the fact, by crowding the topmost deck with appliances for saving the lives of the passengers when the ship goes down?

But it will be objected that, even if the ship were made so far unsinkable that she might act as her own lifeboat, there would yet remain the risk of her destruction by fire, and that, if a fierce conflagration occurred, the passengers would have to abandon ship and take to the boats. The objection is well made, and if it be possible to introduce structural features which will render ships both fireproof and unsinkable, the thing should be done.

It is sincerely to be hoped that one outcome of the present world-wide interest in the subject of safety at sea, will be a searching investigation of the whole question of fire protection. In some of the first-class passenger ships, notably those of the leading German companies, the subject has been given the attention which it merits; but there is no doubt that a large majority of the vessels engaged in the passenger-carrying trade contain no fire protection of a structural nature; that is to say, the spaces reserved for passenger accommodations are not laid out with any view to limiting the ravages of fire. On most of these ships a fire which once obtained strong headway might sweep through the decks devoted to passenger accommodations, without meeting with any fireproof wall to stay its progress.

Now the most effective protection against a conflagration on board ship is to apply the same method of localisation which is used to such good effect in limiting the inflow of water resulting from collision. The steel bulkhead and the steel deck, acting as fire screens, may be made as effective in limiting the area of a fire as they are in limiting the area of flooding.

The passenger decks should be intersected at frequent intervals by steel bulkheads, extending from side to side of the ship and carried up to include the topmost tier of staterooms. Where the alleyways intersect the bulkheads, fireproof doors would afford all the necessary means of communication. The provision of many such bulkheads, coupled with the installation of an ample fire-main service and the faithful practice of fire-drills, would render the loss of a ship by fire practically impossible.

The pathetic reluctance of her passengers to leave the Titanic for the lifeboats was justified, surely, by the seeming security of the one and frailty of the other. Perfectly natural was their belief that the mighty ship would survive, at least until the rescuing steamers should reach her vicinity and render the transfer of passengers a safe operation. Did not the Republic remain afloat for many hours after a collision scarcely less terrible than this, and was not the Titanic twice her size and, therefore, good as a lifeboat for many an hour to come?