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Aviation History
1925
1925 - 0243.PDF
APRIL 23, 1925 Mijnheer Fokker standing by his non-stalling monoplane. and even more easily inspected, so that in commercial use any defect in individual rings can immediately be discovered. The principle of having the rubber exposed to light may not, however, be entirely a good point. The shock-absorbing qualities of this undercarriage appear to be very good, but one cannot help thinking what a perfect oleo-pneumatic type could be arranged to take its place, the arrangement lending itself admirably to the use of this type. However, there is no doubt that such an undercarriage would be a great deal more expensive, and it is probably for this reason mainly that Fokker has chosen to retain the plain rubber type. i r, •' y. Fraternising with the " enemy " : Mr. H. T. Vane appears to be pleased with the behaviour of the Napier " Lion " in the Fokker monoplane, but Mr. Lappin, of Rolls-Royce fame, has seen other FokkersJ:hat he likes ^_^_M-M^ better. Concerning the reasons which cause the P'okker F. VII to stall so gently, and to remain under control up to very large angles, the small ailerons and the general absence of any special devices suggests that in a large measure this must be due to the wing section employed. We have seen no figures relating to this particular section, but it appears evident from the behaviour of the machine that the lift curve, plotted on angle of incidence, must be very flat at the top, and drop off gently after passing the angle of maximum o o o o o o o Am o n g the visitors to Croy- don last week were Mr. A. V. Roe, Mr. Handley Page, and Air Vice-Marshal Sir Seftoa Braucker. O O O O O O O O O O O O O O O O O O O O O O O o o o o o o 243
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