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Aviation History
1936
1936 - 0517.PDF
^20 FLIGHT. FEBRUARY 27, T93O. ambulance work, and can be supplied with a pair of Edo floats. As a two-seater lighter, the machine mounts two Browning guns, controlled electrically from the pilot's cockpit and placed in the lower wings. The rear gun, likewise a Browning, is mounted on an arm which swings from side to side of the rear cockpit. Two bomb racks, mounted in tandem under the fuselage, will accommodate five 25 lb. bombs each, or two 125 lb. demolition bombs may be carried in the front rack only. Either the Wright Whirlwind, or the Pratt and Whitney Wasp Junior radial engine, is normally specified, the powers available ranging from 250 h.p. at ground.level to 400 h.p. at 5,000 ft., with a moderately supercharged model. As a tighter ihe Model D attains speeds of well over 170 m.p.h. The North American NA-16 A monoplane intended for similar duties to the Waco, the NA-16, is a product of North American Aviation Inc., who have just moved into a new aircraft factory at the Los Angeles Municipal Airport. Inglewood, California. The com pany is at present working on an order for a hundred basic trainers believed to be similar to the NA-16. The monoplane wing is a cantilever type of aluminium-alloy stressed-skin construction. Although the centre section is of parallel chord and thickness, the leading edges of the outer panels have a decided sweep-back, which, it is claimed, improves stability and vision from the front cockpit. Split trailing-edge flaps of the Wright type, patented by North American Aviation, are incorporated, being operated mechanic ally by a very powerful toggle link arranged so that the maxi mum force required is about 8 lb. Unlike the wing, the fuselage is a welded chrome-molyb denum steel tubular structure. One particularly interesting feature is the special unit built in between the pilot and observer to protect them in case of an accidental nosing over. The undercarriage is normally an outstandingly simple canti lever type, but a retractable gear may be fitted giving an in crease in speed of about 8 m.p.h. Either one or two synchronised guns may be installed, and the observer has the usual Browning on a track type mounting. NORTH AMERICAN NA-16 PRATT AND WHIT NEY WA-P OR WRIGHT WHIRL WIND Performance, of course, varies with the type of equipment carried and the engine installed. As a two-seater fighter with a Pratt and Whitney H-type Wasp giving 500 h.p. at 11,000 ft. the maximum speed with fixed undercarriage is 212 m.p.h, at that height. As a single-seater fighter with the same engine this figure is increased by 10 m.p.h. In this view of the North American NA-16 the fixed undercarriage is fitted : retractable gear may be specified if desired. For New Motorists IN December, 1935, the last month for which the figures for Great Britain are available, 22,489 new cars were regis tered, against 20,991 in December, I9J4- A further comparative increase for the months of January and February is confidently expected when the figures are available. This indicates that a very large number of new motorists are taking to the roads, and with the approach of Easter the rush will certainly be accelerated. New motorists to-day have to pass examinations which necessitate a quite extensive knowledge of both car and road routine. To help newcomers, to-morrow's issue of The Auto car is an enlarged special New Motorists' Number, wherein the very fullest information—legal, mechanical and financial 1 set forth clearly to enable every prospective motorist to grasp exactly what his ownership of a car will cost, what he mu- do to satisfy the. law, and how to obtain the best use anu extract the utmost enjoyment from his car. Another Stinson Model RESEMBLING, in a general way, a scaled-down and twin-engined version of the tri-motor Model A, the btlD Model B, which is now being built, will have a pair-ot 20 h.p. Lycomings. The estimated cruising speed conferrea y these units is 160 m.p.h. at 6,000 feet. Normally six s< will be provided.
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