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Aviation History
1934
1934 - 0431.PDF
FLIGHT, MAY 3, 1934 MORE ROUES PNEUMA- TIQUES : A fully streamlined wheel forms a centre attraction to Palmer's Stand. They are show- ing a very wide range of tyre and wheel sizes. Their pneumatic brake was worked incessantly during the Show for demon- stration. lady can be tempted to pass that stand by without having a good look at it before doing so. The M.35 was brought out late last year as a development of the pre- vious models which had com- peted in the European " Rund- fiug." The engine is a Siemens seven-cylindei radial, Sh. 14A, giving 150 h.p. It is well cowled in a complete ring of the N.A.C.A. type, which is easily detachable and which extends back close to the fuselage. The undercarriage is the first point which strikes the eye, as this is of the one strut, fully cantilever type. The centre section of the fuselage carrying the wing root fittings and the under- carriage legs is of welded steel tubes. The undercarriage is so arranged that the portion of the leg immediately outside the fuselage fitting underneath the wing is the weakest part, and that in the case of failure this will give way first, thus saving the fuselage structure itself from damage. Despite the single strut design, wheel brakes are fitted, and the wheel is fully enclosed in an aluminium fairing. The cantilever wing has the added weight of six coats of dope well rubbed down, but the extra speed gained due to the superlative finish is claimed to be considerable. The wing, which is of spruce with a plywood covering, has one main spar, with a secondary one for the ailerons. It is highly tapered both in plan form and depth of section. Washout of incidence has been arranged so that aileron control is maintained below the stalling point. The fuselage is of welded steel tube with a fabric covering, and this latter is as highly finished as the wing. Luggage is carried in two wing root lockers placed one each side. Special suit cases made to fit these lockers are supplied with each machine. The inside of the cockpits is as well finished as is the outside of the machine. Brown leather is used not only for the seats but also for the sides of the cockpit, and altogether the M.35 is likely to attract quite a lot of atten- tion. Its top speed is 143 m.p.h. (230 km/h), its land- ing speed 53 m.p.h. (85 km/h), its initial climb 1,080 ft./min. (5,5 sec), and ceiling 19,030 ft. (5 800 m). Junkers is the only other German aircraft manufacturer showing, and they have con- tented themselves with models of the G.38 four-engined machine and the Ju.52 three- engine liner of the type often to be seen at Croydon. Swiss Aero Club The Geneva section of the Swiss Aero Club supported the Show by having one of the Club's " Moth Majors " and also a glider of the primary training type on their Stand. Apart from these exhibits the Stand was decorated with various photographs and docu- ments giving full details of the Club's work. Their machines housed out at Cointrinare aerodrome, which is the air- port of Geneva, and if one is GLANZEND : Its low price as well as its remark- ably fine finish and ruggedness of construction caused a stream of visitors to the " Hawk " Stand. to judge from the amount of flying done during the week-end we were there, the Club is a very live one. There were only two actual Swiss aircraft manufacturers showing. The first of these was M. Alfred Comte, whose productions have frequently been described in FLIGHT, and in the Salon he was showing his latest type A.C.12. This machine has a seven-cylinder Siddeley " Genet Major " cowled in an N.A.C.A. cowling. It is a full cantilever monoplane of wood and metal construction, and bears some resemblance to the general features of the Desoutter. The fuselage utilises welded steel tube con- struction, and provides seating accommodation for three persons, two of them being in slightly staggered seats, side-by-side behind the pilot. The other machines of Swiss construction were those of the aircraft factory at Grenchen. We understand that this enterprise is, to a certain extent, one which was started to provide employment for the unemployed. Their power-driven model W.F.ll has a Pobjoy engine and is a two-seater tandem open biplane of a somewhat primitive looking nature. The construction is composite and must, perhaps, be taken as something in the nature of an experimental prototype rather than as a machine for serious work. It does however fly, and a maximum speed of 100 m.p.h. (160 km/h) is claimed, while the minimum speed is 31 m.p.h. (50 km/h). Shortly before the opening of the show it was this machine which towed a glider made by the same firm over the Lake of Geneva. Unfortunately the nose of the glider proved too weak to withstand the pull imposed upon it, so that it came away and the pilot dived, somewhat precipitately, into the water. Both he and his glider were however rescued, ths former without anything very serious the matter with him, and the latter no further damage than that which occurred at the nose, and in this state it was shown on the stand. Another exhibit of this firm was a small single-seater biplane glider bearing in its general lines a resemblance to the W.F.ll but controlled by warping the wings. Apart from these firms the Swissair " company had two stands. In the body of the hall was one of their Lockheed " Orions," and around the side of the hall they had one of the Wright " Cyclone " engines, together with photo- graphs and maps describing their work, the biggest and besides areSwissairSwiss company, the " Orions " 431 B2
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