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Aviation History
1953
1953 - 0197.PDF
FLIGHT, 13 February 1953 195 AIRCRAFT INTELLIGENCE TWIN-JETTERY: The McDonnell F2H-3 Banshee (above) is the subject of a paragraph on this page. Below it is the first photograph of the Morane Saulnier MS 755 fighter trainer, which has now flown at Melun-Villaroche. Described in our issue of January 9th last, the MS 755 is powered by two Marbore II turbojets; like those of the Banshee, its auxiliaries are all-electric. France New Breguet Projects. Although much of the time of the Breguet design-staff is taken up with the Deux Ponts transport and the Vultur carrier strike aircraft (one of which is now at Farnborough, as we pre dicted two weeks ago), the following de signs are now being considered: Type 1001 and 1002 ground-attack fighters, with an all-up weight of 8,000 lb; Type 1020 artillery-observation aircraft; and Type 1030 convertiplane, whose fuselage- mounted turbojet feeds two tip-drive rotors normally retracted into the wing. Switzerland New Fighters. The Federal Aircraft Fac tory at Emmen, near Lucerne, has been experimenting with advanced fighter pro jects for several years. The N-20 glider, with a shape reminiscent of the Douglas Skyray tailless fighter, was flown in 1950. A later development, upon which work is progressing, is an unusual four-jet fighter, also styled N-20, This is to have four Armstrong Siddeley Mambas "modified in Switzerland to turbojet form"—although the parent company have already done this in the Adder. In the meantime, a six- tenths scale model is being built, powered by four Turbomeca Pimenes. An even more unlikely project is the N-2020—also a tailless design, but powered by two turbojets totalling 15,000 lb thrust; two Sapphires have been suggested. U.S.A. Fair child C-119. One of these large military transports is being equipped with a small auxiliary turbojet to provide emer gency power in the event of take-off engine failure. Aviation Week has it that the engine—a Fairchild YJ-44 of some 1,000 lb thrust—will be mounted in a cradle in the roof of the fuselage, so that the unit can be retracted when not in use. This may become standard on the later C-119S; some of these aircraft, incidentally, are to be completed as flight-refuelling tankers, with 12 tanks of transferable fuel. McDonnell Banshee. Illustrated on this page is a production F2H-3 from St. Louis —one of the first of this bigger and heavier sub-type to be seen. The most obvious superficial feature is the unpainted, ano- dized finish, which reduces weight and skin-friction while improving corrosion resistance. The F2H-3 can carry an under- wing load even greater than that lifted by the earlier Banshees; other improvements include extra tankage, a larger, low-mounted tailplane and additional electronic gear. North American Sabre. Several types of Sabre are now being built with many parts formed from titanium—both to reduce weight, compared with steel, and improve resistance to high temperature, as compared with light alloy. In particular, the afterburning F-86D all-weather fighter incorporates more than 600 lb of the new metal—a remarkable amount equivalent to over 10 per cent of the basic airframe weight. Republic XF-b'qH. Contrary to earlier repot ts, this experimental aircraft will not be powered by an Allison T-40 double turboprop—as is the Skyshark. Instead, a Wright T-54 is specified; this turboprop has been developed from the Armstrong Siddeley Sapphire (also built by Curtiss- Wright) in order to provide a single-unit engine of 10,000 s.h.p. In the Thunderjet test-bed the T-54 wi" drive a supersonic Curtiss "biplane" airscrew formed from two tandem-mounted, three-bladed, small- diar.ieter units, turning at high r.p.m.
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