. Discovery. Science. DISCOVERY 311 provided the " specification," because practically every Tccommendation contained therein has been embodied. It may be interesting to note that the cost of nmning the Do Havilland monoplane on a single journey from London to Paris is said to be ^34, while its earning capacity fully loaded is 60 guineas. There is, unfortunately, no S])ace in which to deal with more than one or two machines representative of modem practice, but in the same class as the De Havil- land monoplane should be mentioned the Bristol Aeroplane Company's eight-passenger biplan
. Discovery. Science. DISCOVERY 311 provided the " specification," because practically every Tccommendation contained therein has been embodied. It may be interesting to note that the cost of nmning the Do Havilland monoplane on a single journey from London to Paris is said to be ^34, while its earning capacity fully loaded is 60 guineas. There is, unfortunately, no S])ace in which to deal with more than one or two machines representative of modem practice, but in the same class as the De Havil- land monoplane should be mentioned the Bristol Aeroplane Company's eight-passenger biplane with two pilots, commonly called the "Bristol Ten-Seater," â which is, again, fitted with the Napier engine. The De Havilland 18 biplane is an intermediate tvpe between of a ratchet gear when it is desired to use it on water. It has been exhaustively tested for both puqioses, and it is a very remarkable sight to see it alight on the Thames, " taxi " to the shore, and then climb on to land under its own power on the wheels. This is unquestionably a type of great importance to an island nation such as ours, and when it has been further developed will become a serious competitor of the aeroplane. The full speed, with Napier " Lion" engine, is 119 miles per hour, and it has a range of 480 miles w'ith the engine throttled down to 90 miles an hour. Messrs. Vickers, Ltd., also produce the familiar " Vimy" twin-engined aeroplane which made the famous trans-.\tlantir, London-.\ustralia, and South. Fig. 3.âTHE VICKERS "VIKIM. .\.mi-hii A machine for use on both land and water. the original and the later types. It was one of the first machines to be fitted with the Napier engine, and carries eight passengers ; the position of the pilot in rear of the cabin, but not so far down the fuselage as in the \.T., is to be noticed. In his later machine, themonoplane already mentioned. Captain De Havilland has moved the pilot's cockpit to t
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