Part 6

If an airship service is to be of practical value, monster sheds must be erected all over the country, so that a vessel may be able to run to one or other of them for shelter, when caught in a high wind. Apart from the expenditure which these sheds entail, the need arises to spend other large amounts upon the crews of trained men necessary to handle the aircraft when they leave the ground, or return from a flight.

There is another formidable item—the cost of the hydrogen gas necessary to inflate the huge envelopes; and, added to this, there is constant expenditure in effecting repairs, caused by the trifling accidents which are always occurring in handling these aerial monsters. Thus, a ruinous bill of cost is quickly arrived at.

And, as against all these disadvantages, the airship, as has been shown, has few, if any, definite advantages over the aeroplane. It can remain in the air longer, it is true; and it can, at the moment at any rate, carry heavier loads. But the great size of its envelope has, so far, made it the plaything of any high wind; and its bulk, in addition, renders it apparently impossible to force it through the air at anything like the speed attained by the aeroplane. Under favourable conditions, airship speeds of from thirty to thirty-five miles an hour seem to represent the best results yet attained.

Practical comparisons, between dirigible balloons and aeroplanes, were possible in the famous French manœuvres, in the autumn of 1910, which have been previously referred to. On this occasion, the aeroplanes were out, and at work in gusty winds, when the dirigibles were compelled to remain in their sheds.

And, when the airships did emerge, it was a subject of comment that, in comparison with the aeroplanes, they offered quite an easy mark for gun-fire.

This fact must be remembered, also. In actual warfare, the dirigible balloon would, inevitably, fall a prey to an attack by aeroplane. Aided by their greater speed, and by the fact that they could probably approach quite near to a dirigible without being seen, aeroplanes would be able to rise above its gas-containing envelope, and wreck the craft by dropping a destructive bomb.

Such points as these have, of course, weighed with the experts of Germany and France. Neither country has abandoned research work in regard to dirigibles. It is quite likely, in fact, that further improvements may be made with these machines, which will better fit them for use in warfare. But, at the present time, when any contrast of utility is made, the aeroplane is immeasurably the more practical weapon; and, whereas a limited expenditure upon experimental work with lighter-than-air machines is not to be questioned, it is to the aeroplane corps that any War Department must look for reliable, everyday service in war-time.

IV. Dangers of a policy of "drift"—Experience which money cannot buy—Trained men, not so much as machines, the criterion of strength.

In connection with military airmanship, there is no policy more dangerous than that which may be summed up in the word, "drift."

It must be admitted that, until quite recently, the official policy in England, as regards the war aeroplane, could thus be summarised:

There is no danger in shirking the responsibility of a definite aerial programme—despite the strides made abroad—because a fleet of war aeroplanes can be bought or constructed at any time, should urgent need arise.

It was not a policy such as this that the Admiralty pursued in connection with submarines. Here was a new and untried addition to naval armament Without hesitating, or waiting while some other country proved its value in actual tests, the Admiralty used common sense, and spent money willingly upon a fleet of submarines. A full test of their use, in actual naval warfare, has yet to be made; but the experimental nature of the machines has not deterred the Admiralty from making definite advancement with them.

Had the War Office pursued such a policy as this in regard to aeroplanes, we should now have a fleet of aircraft as large as that of any other nation.

It is an undignified attitude to watch other nations at work upon the aeroplane problem, without spending money, and then to step in at the last moment, and profit by their experience.

From the point of view of strict economy, and setting all other considerations aside, such a policy might find acceptance, were it not for circumstances over which those who advocate it have no control.

At any moment, for instance, while one country is waiting for another to evolve an ideal aeroplane, a war may break out. In such an event, a cheese-paring policy would place its advocates in an awkward position. Even granting that they were using experimental machines, the nation which actually possessed a well-equipped aerial fleet, at the outbreak of hostilities, would have an immense advantage over the country which did not.

Wars, when they do break out, generally come quickly. There would be little opportunity for a laggard nation to rush together an aerial fleet at the last moment; or, even if it could do so, lack of organisation would render such an air-force practically inoperative.

Even setting aside the danger of war suddenly arising, and assuming that a waiting policy has no immediate risks, the negative programme has another fatal drawback. Even if, at the last moment, large sums of money were expended upon an air-fleet, and there was time to provide both machines and men, the nation which had neglected aviation would still be lacking in the one essential for success.

That essential is experience. No money, however lavishly spent, can buy the experience which France and Germany are obtaining, day by day, in their pioneer work in handling war aeroplanes.

Any form of aerial work is new to man; and at first, when he attempts it, he is a fumbler. He has no confidence in himself, and so he makes mistakes. But, if he is given an opportunity of being in the air a good deal, and has a chance of handling aircraft, not once or twice, but practically all day long, for months on end, he becomes, gradually, quite accustomed to his work.

Instead of being anxious, and inclined to get into trouble through an excess of caution, he acquires a cool, firm judgment, and soon astonishes even himself by his feeling of security when in the air.

This is the opinion of all skilled airmen; an ounce of practice is worth a ton of theory. How was it that the quiet, unassuming French naval officer, Lieutenant Conneau, was able to win all the great flying prizes during the season of 1911? There is only one answer: he was more experienced than his rivals.

With absolute thoroughness, this man began at the very beginning. He studied the laws of the air first of all; then he made himself acquainted with the construction of machines, and of motors. Afterwards he began to fly. He progressed from stage to stage, with no impatience, or haste.

He undertook cross-country flights to note exactly what climatic conditions prevailed. He studied maps very closely, and tested compasses. He grew accustomed to being in the air; and he learned how to combat adverse winds. He acquired the skill necessary to steer a straight course across country, and to make landings upon all sorts of ground.

And then, so equipped, he entered for the principal long-distance races. Because he was absolutely competent in every way, he astonished everyone by the perfection of his flying. He made no mistakes. He flew correctly from one control to another. He did not fear gusty winds. He did not damage his machine. And so he won.

There are, in the air service of France, many such men as this. Neither France nor Germany, for the matter of that, are content with buying and building machines. These they regard as being experimental, and likely to be superseded by faster, stronger aircraft. What they do consider of vital importance is the steady, irresistible growth in the number of their airmen, and the fact that, every day, these men are becoming more expert in the handling of their machines, and in the carrying out of their duties as pilots and observers.

The lead which France and Germany have obtained in military airmanship should not, indeed, be reckoned so much in machines, as in men; and England’s backwardness should be gauged in a similar way.

In considering the danger of a laggard position in regard to men, rather than machines, a point of great importance arises. It concerns the length of time required to make a military airman thoroughly proficient.

The experience of France and Germany has now proved, fairly definitely, that a completely competent military flyer can only be produced after an arduous period of tuition, and practical tests. It has been laid down, in fact, that to produce a military airman who thoroughly understands his work, a year or eighteen months’ hard training is required. The importance of this point is self-evident. Apathy may place a nation years behind.

A great deal, when the international relations of Europe are concerned, can happen in a year; and it is a perilous thing for any country to be far behind in regard to what is, admittedly, a vitally-important weapon.

Thus it is clear that England cannot hope to make up for a laggard policy even by the expensive method of acquiring aeroplanes, post-haste, at the last moment. We might buy machines, it is true, but we could not buy airmen of the type that France and Germany are rapidly training, in well-organised squadrons.

It has been assumed that machines might be bought in a hurry; but there is some doubt even on this score. Little encouragement has been given to home manufacturers. They would scarcely have facilities for producing machines in large numbers, even if it were a matter of urgency. On the other hand, the makers in France and Germany, always well supported by Government orders, have most complete workshops.

It might easily happen, in a case of urgent need, that we should be compelled to go abroad in an endeavour to obtain machines. In such a case, we might obtain them; or, on the other hand, we might not. Whatever the result, it would be highly unsatisfactory for a country to be dependent upon foreign makers for its war aeroplanes.

In the matter of aeroplane engines, the fact that we have no motor in England to equal the "Gnome" is because no financial support has been forthcoming, in this country, for aviation. To construct a successful engine, means the laying down of a large sum of money in preliminary tests. A number of experimental motors have to be made, and then "scrapped" again. As much as £10,000 may be spent, before success is attained.

In France, with a Government eager to encourage progress, by the practical method of buying machines, men with capital have been found to finance the constructor who has ideas. This is why France has the best motors and the best aeroplanes, and why we have to buy French-built engines and machines.

Instances such as this throw into clear relief the fact that Government apathy, concerning such a new industry as that of building aeroplanes and engines, has an evil effect which is widespread, and lasting.

V. England’s official awakening—The training of 100 airmen—The forthcoming trials of military machines.

Having dealt with England’s backwardness, it is now only fair that the authorities should be given credit for their recent promise of a changed programme.

In the first place, attention may be directed to the official scheme for training a corps of 100 military airmen. This, announced towards the end of last year by Colonel Seely, Parliamentary Under-Secretary of State for War, has already been put into operation in a limited degree.

The officers chosen for aerial work are picked from various regiments. They are allowed to attend any flying school they select, and the authorities pay their tuition fees. When they have passed the tests for their certificates as airmen, they are taken in hand at the military flying school on Salisbury Plain, and are given instruction as military pilots or observers.

When they have attained proficiency in this direction, they return to their regiments, and are afterwards called upon, from time to time, to undergo "refresher" courses of military flying.

The criticism which is levelled against this scheme is that officers should be permanently attached to the air-corps, and should never be allowed to relinquish their flying duties. Experts who hold this view affirm that "refresher" courses are not sufficient to keep a man thoroughly _au fait_ with such special work as military aviation.

As a matter of fact, the relief which has been expressed at the taking up by the War Office of any definite programme, has had the effect of robbing such criticisms as these of their sting. If the plan described were to be adopted as a permanent policy there would, indeed, be grave cause for complaint. French and German military pilots are placed once and for all in the air-corps, and are not withdrawn.

But the scheme of our authorities must only be regarded as a beginning. Directly any really definite work is done, the value of a well-equipped air-corps will be so strikingly demonstrated that there should be little difficulty in extending the Government programme.

The ideal, undoubtedly, is a large and extremely skilful corps of pilots and observers, who do nothing save perfect themselves in their aerial duties. An airman cannot have too much actual flying practice; in every aerial voyage he makes, he learns some useful lesson. The French policy is: once a military airman, always a military airman.

Naturally, with the avowed policy of training these 100 military pilots, the War Office has found it necessary to acquire more machines. From time to time, therefore, since the announcement of this scheme, machines have been bought from famous French firms—notably a Breguet biplane, a Nieuport monoplane, and a Deperdussin monoplane.

But such purchases have only been made to meet the most pressing needs of the flying school. What will precede any large orders for war aeroplanes is a carefully-conducted and stringent test of military machines, which will be thrown open to the world.

The conditions for these trials, which will be held in England under the auspices of the War Office, probably some time in July this year, were issued in December last. Critical comment has granted their practicability, and it is agreed that the successful machines will represent all that is best in military aviation.

One criticism, however, is that the sum of money which will be expended in prizes, £11,000, is not sufficiently generous. In connection with the 1911 French military trials, a sum of more than £50,000 was earmarked by the Government to be expended in prizes, and in orders for successful machines.

But, in the forthcoming English contests, there is no definite financial offer save the £11,000 mentioned. It is stipulated, as a matter of fact, that the War Office shall have the option of purchasing successful machines for a sum of £1000; but there is no guarantee expressed that such purchases shall be made. Of course, it is expected that winning machines will be ordered in certain quantities, and no doubt such will be the policy adopted. But makers cannot count, definitely, upon this being done.

However, moderate though the financial inducements are, there is little doubt but that a satisfactory number of machines will be entered for the tests. English manufacturers, whose inducements to spend money have, in the past, been so few, are determined to make a good show. Both in connection with the main prize, and also in a subsidiary contest for British-built machines, in which the principal award is £1500, the home manufacturers are keen to demonstrate what their machines can do.

Already, it has been proved that English workmanship has nothing to fear from foreign competition. All that the industry in this country lacks is the steady, regular production which is maintained in France. The building of machines teaches lessons which are invaluable. What English manufacturers have not yet been able to acquire, is the confidence, and intimate knowledge of their business, which only come from a healthy state of demand and supply.

The details of the War Office contest have already been so fully discussed that it is only necessary, here, to refer to their principal features. One of the most important requirements is that the aeroplanes should be able to carry a live load of 350 lb., in addition to their equipment of instruments, and raise this weight, as well as sufficient fuel for a four-and-a-half hour’s flight.

A three-hour’s non-stop flight, fully loaded, will be required. Machines will also be called upon to maintain, for an hour’s voyage, a height of 4500 feet. They will, in addition, have to ascend to an altitude of 1000 feet, at the rate of 200 feet a minute.

These requirements are certainly hard to fulfil. A machine, very greatly in advance of anything yet produced, will be needed to pass through such ordeals successfully.

As regards speed, the competing aeroplanes will need to attain a rate of fifty-five miles an hour, when fully loaded. Another requirement is that they should plane down to the ground, in a calm, from a height of not more than 1000 feet, and traverse a horizontal distance of not less than 6000 feet before touching ground. They will be called upon to rise from long grass, clover, or harrowed land in a distance of 100 yards, when fully loaded.

The silencing of engines is to be regarded—and quite rightly—as an important advantage. Minor points are that machines must be easily dismantled; that parts must be interchangeable; and that the observer’s view, from a machine, must be as unobstructed as possible.

The importance of this interesting contest, to be held in England, cannot be over-estimated. It will be a revelation, to all concerned, as to the capabilities of the modern-type, war machine, and should open up a new and satisfactory era in military flying in this country.

_NOTE_

_The aerial programme of the War Office, for the year 1912-13, is dealt with on pages 181-187._

SIXTH SECTION WAR AEROPLANES AT THE PARIS AERONAUTICAL EXHIBITION, DECEMBER, 1911

I. Latest-type military monoplanes—Two-seated, reconnoitring machines—Single-seated, high-speed aircraft.

At the Paris aeroplane _salon_, which marked the close of the aeronautical season of 1911, a striking display of war machines was made. The year, as has been indicated, was full of progress; and the result of all the experience gained was clearly seen in the aircraft exhibited, and particularly in the military monoplanes staged.

As a type, the two-seated scouting machine, capable of high-speed flight for several hours, when carrying pilot and observer, was most interestingly represented. Many difficulties had been overcome in connection with this machine—primarily that of affording the observer a fairly-unobstructed view of the land below. In early-type military monoplanes, the spread of the wings had curtailed seriously the reconnoitring officer’s scope of vision. But, in the monoplanes seen at the Paris show, the wings had been so set back, and the observer’s seat so arranged, that it was possible for him to secure, when in flight, a thoroughly practical, bird’s-eye view of the country below him.

Another problem solved, was in regard to engine-power. In the first instance, with fifty horse-power "Gnomes," two-seated monoplanes had been underengined; and their flying capabilities had suffered in consequence. But the machines built towards the end of 1911 were equipped with seventy horse-power "Gnomes," and—in some instances—with motors of a hundred horse-power. The result was that a reserve of power was obtained, to say nothing of a very desirable increase in speed.

As regards the landing-chassis, a somewhat weak point with early-type, two-seated monoplanes, an improvement was observable in the machines constructed towards the close of the flying season of 1911. Not only had the landing gear been strengthened, but—in many cases—simplified as well, which meant a commendable lessening of head resistance, when in rapid flight. But, in this regard, military critics did not admit that they were altogether satisfied—even by the machines seen at the Paris show. A stronger, more rough-and-ready chassis is demanded; but it must be remembered, in fairness to existing military monoplanes, that they succeeded, in the French trials, in landing upon, and rising from, ground which was fairly rough.

So far as personal comfort is concerned, a point certainly worth consideration in long flights, the latest-type reconnoitring machine reveals interesting features. Pilot and observer are, for example, screened so far as is possible from the rush of wind. Their seats are comfortably placed. Map-holder, compass, engine-revolution indicator, and other fitments are neatly arranged. Dual control has become almost a standard device, thus enabling either occupant of the machine to take charge, while in flight, without change of seats.

Of two-seated, military monoplanes at the Paris exhibition, it is probable that the Nieuport, Blériot, and Deperdussin attracted most serious attention; and genuine interest was also aroused by the lonely prominence of one British exhibit—that of the Bristol passenger monoplane. As definite evidence of the capabilities of this machine, Mr James Valentine had, a day or so prior to the exhibition, piloted, in a flight over Paris, a sister monoplane to that which was shown.

Military authorities, who visited the Paris salon, directed very serious attention to the single-seated, high-speed war monoplanes which were on view. Here is to be found the emergence of a machine of a very definite and important type.

It was with great interest, and some surprise, during the progress of the French military trials, in October, 1911, that those interested in airmanship read of the ordering, by the French authorities, of a large number of single-seated monoplanes. The surprise, it should be mentioned, was occasioned by the fact that single-seated machines should have been purchased just at a time when passenger monoplanes were arousing most interest.

But the French military experts knew their own needs. They had mapped out, for the single-seated, almost racing-type machine, an important field of activity in war-time. They saw that, under actual service conditions, there would be definite demand for a scouting aeroplane which would make a very rapid, general survey of the position of the enemy’s troops.

In such a machine, they decided, speed would be the all-important requirement; and, seeing that the survey to be made would be comprehensive, and not detailed, it was reckoned that the pilot would be able to do all that was required, thereby saving the carrying of a passenger, and enabling greater pace to be obtained.