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Aviation History
1949
1949 - 0797.PDF
52° FLIGHT MAY 5TH, 1949 Showing the disposition of the power units and ducting in four French jet prototypes : top left) M.D. 450 Ouragan (Nene); (top right) S.O. M2 (Derwent); (above) S.O. 6020 Ouragan (Nene) and (right) S.E.24I0 (2 Nene). The small outlets on the S.O.M2 are for turbine-cooling air. The Salon at a Glance ..... to be of quite attractive appearance, notwithstanding its great capacity Alternative engines for aircraft of the "76" series are Pratt and Whitney Double Wasps, Bristol Hercules or SNECMA 14RS. The prototype 761, with the Jast-named units, flew on February 15th this year. Breguet are also developing the B.892 Mercure for airline use or as a freighter. This may have two Hercules or two 14R engines, or a version with four smaller engines can be supplied. The first proto- type, which has lately flown, is, in fact, four-engined. Of high-wing design, the 892 is designed for a 10,500-lb payload and will have a "commercial" cruising speed of about 170 m.p.h. BRISTOL. — The Proteus - powered Brabazon II is represented by an impressive model showing, among its numerous un- familiar features, Illustrative of piloting, undercdmtge tank arrangements on a version of the S.E. 2410. rearward- facing seats and the location of the jet outlets. There are also models of the Bristol 175 (four Centaurus or four Proteus), intended for B.O.A.C. routes, and of the Type 170 Freighter/Wayfarer. CONVAIR.—Models of the Convair-Liner (240) are finished in the colour schemes of the various airlines supplied. More than 150 machines of this type have been built. MARCEL DASSAULT.-—Designed for Colonial operation, the D.315 (shown by photographs) is a mid-wing monoplane with nosewheel undercarriage and having a flying weight of 11,4001b. DOUGLAS.—An instructive comparison is afforded • by ad- jacent models of a standard DC-3 and the new Super DC-3. Features of the latter are totally new mainplanes with squared- off tips, bird-resisting windscreen, more powerful Wright or Pratt and Whitney- engines, and semi-retractable tailwheel. The stated all-up weight of 27,400 lb will be increased. PIAGGIO.—This Italian firm is displaying a representation of the projected P.140 transport, with four Hercules 761 engines. The empty weight will be 44,000 lb and the disposable load 38,500 lb. A retractable loading ramp is built in to the lower rear portion of the deep fuselage. FOUGA.—Developed from a military glider, the Castel- Mauboussin CM-100, built by Fouga, has been tested in proto- type form and is in production. Two SNECMA Argus en- gines are used. The CM-100 should prove unusually economical in service, and designs exist for the installation in similar machines of two small auxiliary turbojets, mounted in the rear of the nacelles. These would be used for take-off, or in the event of one piston-engine failing. M. Mauboussin's pro- posal to use turbojets in low-altitude, low-speed aircraft • may stem astonishing, but he is confident that revenue will benefit. LOCKHEED.—Exceptionally attractive is the Lockheed stand, with a semi-circle of Constellation models bearing various air- line markings and embodying a large-scale map of world routes served by the graceful "Connies." MORANE.—Parisians are intrigued by the dummy occupants of the M.S.701 light twin-engined Colonial aircraft. Adapt- ability is an outstanding quality of this all-metal machine, . the cockpit enclosure and nosewheel undercarriage of which give it a quite racy appearance, despite its ability to operate as a four-passenger light transport; ambulance with four pas- sengers and two stretchers; dual-control trainer; or photo- graphic survey air- craft. The engines are Ma this 8G 20s. PIAGGIO.—One of the most talked-of civil types • is the Franklin-en- gined P. 136 pusher amphibian five-seater tourer or light trans- port, an example of which is being demon- strated in flight dur- " ing the show. A" gull wing permits a shallow hull. S.N.C.A. DtJ CENTRE. —The N.C.306, shown as a model, exists only as a project. Having a braced high wing, a fixed undercarriage and three engines, it is of distinctly utilitarian appearance. Designed to operate from confined Colonial areas, this type appears to correspond to the Northrop Raider formula. S.N.C.A. DU NORD.—There is an actual example of an N.2100 light twin-engined transport, the Potez 8D03 engines of which drive pusher airscrews. Normal accommodation is for two pilots and seven passengers, but cargo and advanced- trainer versions are offered. The empty weight is about 7,000 1b and the gross weight 10,570 lb. Cruising speed and range are placarded as 198 m.p.h. and 750 miles respectively. S.N.C.A. DU SUD-EST.—To show the various Sud-Est types in full scale would, according to a notice, require a quarter of the Grande Nef floor space. In addition to models, however, the company manages to display a full-size sample of the fuse- lage construction of the S.E.2010 transatlantic airliner. Twenty-five S.E.2010S have been ordered by Air France, and the first prototype has been flying for some weeks at Toulouse. The engines are Pratt and Whitney Wasp Majors, and the B 8 Wing-tip-skid (without jettisonable wheel attachment), diminutive aileron, and— " ghosted "—spoilers on the S.O. M2. ™.™_^-a.iidi»S*' -«S
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