It would certainly not be wise to buy a hundred machines all of one type, although, by so doing, the price for each machine could be more reduced than in the case of splitting up an order between several manufacturers. But such a policy of having "all one’s eggs in one basket" would not be judicious—or fair to the industry as a whole. Government policy, in this regard, should be to support as many manufacturers as is reasonably possible, and thus ensure the industry maintaining a healthy position. Orders placed with a number of makers would be necessary, in fact. But, even with such a distribution as this, a considerable saving of expense could be made. Expert estimates have been given as to the cost, per machine, of a hundred war aeroplanes, all ordered at the same time; and a reasonably exact figure places the average price, for each machine, at £600. This represents a very definite reduction upon the price of a single machine; and it also indicates that, in the future, when aeroplanes are bought in even larger numbers, for war purposes, the cost of each machine will become an almost insignificant item—insignificant, that is to say, when compared with the cost of other forms of armament. When a thousand machines can be ordered, and built at one time, for example, the cost per machine will be enormously reduced. There should be no outcry, indeed, as to the cost of war aeroplanes. The Admiralty embarks, without question, upon the construction of a great battleship, although it knows that each huge craft will speedily become obsolete. This money is not grudged; it is for the defence of the country. The same attitude should be taken up as regards the creation of a fleet of war aeroplanes. They, too, have become essential weapons. War aeroplanes are, in their own sphere, quite as important as battleships. And the contrast between the two weapons, in the matter of price, is extraordinary. For the price of one Dreadnought it is, indeed, estimated that a fleet of a couple of thousand aeroplanes could be created. An enthusiastic advocate of the war aeroplane puts this matter of cost very forcibly. "It is as nothing," he declares. "A vote of a few hundred thousand pounds would place the whole air service on a sound basis, so far as England is concerned. The net cost of each aeroplane, in a squadron, is an absolutely insignificant item of expense, when we reckon what we are spending, in other ways, on our Army and Navy. One aircraft represents only about twice the amount spent in making one of the great shells fired by our biggest naval guns. It is this astonishing cheapness of the aeroplane, having regard to its revolutionary work, which is the surprising factor of the situation. It will mean, of course, that flying machines will be used, eventually, in huge fleets."