Until then, of course, much must remain more or less theoretical. But it behoves great nations to beware of these grim potentialities of the new "arm."

FIFTEENTH SECTION VALUE OF THE AEROPLANE IN NAVAL WARFARE

I. Machines for coastal and high-seas work—Question of flying in winds.

The work of the aeroplane, when co-operating with land forces, is all-important, as has been shown; and another field, just as useful, lies in the utilisation of air-scouts in naval warfare.

The possibilities of the aeroplane in this direction are, however, only just being realised. To the credit of France goes the first definite steps. At Toulon, the French naval authorities are keenly alive to the value of aerial scouting over the sea. Plans have been made for dispatching aeroplanes from the decks of cruisers; and reconnoitring flights from the land, over the sea, are now being undertaken.

During the present year France will spend £40,000 upon naval aviation, quite apart from her disbursement in other respects.

Germany is training naval airmen, and experimenting with aeroplanes for use at sea. Austria has established an experimental station. In England—since Lieutenant (now Commander) Samson rose from the deck of a warship at Sheerness—the Admiralty is credited with an ambitious programme. In America, highly-practical work has been done in the way of building aircraft to rise from the water; and, in France, the Voisins have built a machine that lifts itself from the surface of the Seine. Farman, too, is building successful hydro-aeroplanes.

From the point of view of their work in naval warfare, a very important future lies before the aeroplane. So far as can be judged at the present time, it is possible to divide naval aeroplanes into two categories: I, coastal aeroplanes; and 2, aeroplanes for use on the high seas.

The former should be stationed at harbours and other sea-coast points of strategetic importance. The latter would be carried to sea with a fleet, and sent up, when desired, from the deck of a ship.

The coastal aeroplane would be invaluable in locating the approach of some attacking fleet. A machine would be sent up from a harbour and, flying high and at a great pace, would be able to scour a wide area of water in a surprisingly short space of time. Upon sighting an enemy’s fleet, the air-scout would be able to gauge its strength, and then dash back to its Headquarters at astonishing speed.