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Aviation History
1932
1932 - 0671.PDF
FLIGHT, JULY 8, 1932 .••::-."•.. SIDE VIEW OF THE " AT AL ANT A " Note the " spats " over the wheels, and the low ground clearance. (FLIGHT Photo.) and the absence of a central engine, is quite remarkably good. Right across the front of the cabin, in front of the pilots, is a large instrument board with a wonderful array of instruments. Those which require constant observation are placed at the port end of the instrument board, under the eyes of the chief pilot, while those which need less fre quent reading are placed on the right, in front of the second pilot. The ailerons are operated by " kidney-shaped " wheels to give an unhindered view over the wheels, and the brake lever which operates the wheel brakes is placed centrally, within reach from both seats. Sideways movement of the brake lever applies the wheel brakes differentially. The four main throttle levers are placed centrally, also within reach of both pilots, while on the left side of the left seat are the four cocks which turn on and off the petrol at the carburettors. The cocks for turning the petrol on and off at the tanks are on the rear wall of the gangway over the mail compartment. The wireless operator occupies the space in the cockpit just behind the pilots. Two airspeed indicators are fitted, the pilot tubes being mounted side by side under the belly of the front portion of the fuselage. One would imagine that this position might be somewhat exposed, when the machine is being taxied on rough ground, or in long grass. Another mild criticism which occurs to us is the low clearance between the belly of the fuselage and the ground. The four " Double Mongoose " engines are, as already mentioned, mounted on the leading edge of the wings. They are spaced fairly widely apart, so that, should it at any time be decided to fit geared engines requiring larger airscrews, the space to do so is available. The petrol tanks are two in number, and are placed inside the leading edge of the wing. One tank is placed between the two engines which normally it supplies. The two systems are, however, connected together so that all four engines can be fed from either of the two tanks, which, by the way, are fitted with electric gauges for indicating the contents. The oil tanks are shaped to the form of the wing leading edge, and act at the same time as oil coolers. Hot oil crosses the tanks in pipes in which are drilled small holes, so that the hot oil is squirted in fine jets against the inside walls of the tanks and there cooled before being allowed to drain down into the bottom of the tanks. [To be concluded.) a s s s s s THE MICHELIN CUP xfT RECORD time was C~ \| accomplished by Mar- ZS jIL eel Haeglen, Chief Pilot of the Soc. Generale Aeronautique, when competing recently for the 1932 Michelin Cup. Flying a Hanriot 41 low- wing monoplane, equipped with a 230-h.p. Lorraine air-cooled radial engine, he took off from Toulouse on the morning of June 23, and, covering the regulation circuit of 2,632 km. (1,635 miles), he landed again at Toulouse after an elapsed time of 10 hr. 20 min. He thus maintained an average speed of 25S k.p.h. (15S.5 m.p.h.). The circuit lay over the follow ing towns, at each of which he landed for sufficient time to have his log-book checked by the officials, and, also, at two, to refuel:—Pau, Bordeaux, Angers, Avor (refuel), Tours, Paris, Reims, Nancy, Luxeuil, Dijon (refuel), Clermont Ferrand, Lyons, Montpellier and Perpignan. Allowing an average of two minutes for each stop, it can be assumed that his actual speed was over 161.5 m.p.h. (260 k.p.h.). Haeglen, it may be remembered, won last year's Michelin Cup on a similar machine—this year's model being speci ally cleaned up and equipped with " spats." Previous winners were:—1929, Michel Detroyat, on a Morane-Saul- nier 230 (230-h.p. Salmson), with 190 k.p.h. (118 m.p.h.). 1930, Detroyat, on a similar machine, with 199 k.p.h. (123.6 m.p.h.). This Michelin Cup was offered in 1928 by the Michelin Co. to be competed for annually, during a period of four THE MICHELIN CUP WINNER : The Hanriot 41 Monoplane (230-h.p. Lorraine air-cooled radial). years, by single-seater machines equipped with engines not exceeding 230 h.p., and to be flown over a circuit in France between July 1 and June 30 of each year. It was open to international entries. A sum of 120,000 francs was also donated by the Michelin Co., 30,000 of which to be awarded annually to the winners of the Cup during the 4-year period. A mini mum average speed of 185 k.m./hr. (115 m.p.h.) must be maintained over the circuit, including the landings at the aeroports of the fifteen cities comprising the tour, where the contestant is required to have his log-book signed by the local commissaire. Intermediate landings, refuelling and repairs are authorised. R. C. W. 623
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