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Aviation History
1956
1956 - 0748.PDF
748 btrveritry TRANSPORTS "PARTICULAR consideration is given here to the more signi-••• ficant transport aircraft designed specifically for military operation, though the importance is recognized of the Serviceversions of such machines as the Boeing Stratocruiser, Douglas DC-6, Lockheed Super Constellation and Bristol Britannia.Notable, too, is the double-deck Breguet 765, adopted by the French Air Force; and reference—even the briefest—must bemade to the elephantine Convair XC-99, still the world's largest aircraft and still serving the U.S.A.F. Four hundred combat-equipped troops or 300 stretcher patients with attendants are possible loads. Successor to this monster will be the DouglasC-132, powered with four T57 turboprops of 15,000 h.p. and capable of carrying a 100,000 lb payload. The C-132 is likelyto follow the general pattern of design established by the Lock- heed C-130 and Douglas C-133. Pure-jet aircraft—already represented by the R.A.F.'sComet 2s—will first enter the service of the United States as the Boeing KC-135 tanker/transport. Not entirely clear (having regard to the promise shown bySTOL—short landing and take-off—machines) is the future in military operations of the very large helicopter, though the classis represented in these pages. In the tactical role its possibilities are shown by the Sikorsky H-34—the U.S. Army's version ofthe anti-submarine HSS—which delivers, ready to fire, a 105 mm howitzer weighing about 5,000 1b. The larger, twin-enginedSikorsky HRS will hoist a bulldozer. Finally, reference must be made to the U.S.A.F. design com-petition for a multi-jet "combined transport and combat pro- ficiency trainer," using small turbojets. GREAT BRITAIN Blackburn Beverley C.1 The Beverley is coming into R.A.F. ser-vice as a heavy-duty transport for the carriage of military cargo and troops and for the parachuting of troops and heavy military equipment.Designed for world-wide operations, it can be used in forward areas from very short unpaved strips. A virtually unobstructed cross-sectionof 10ft x 10ft is provided throughout the 40ft length of the cargo hold, and both this hold and the tail boom (which is itself of greater capacitythan a Dakota fuselage) are fully soundproofed. Although a layout exists for a 162-seater, the standard troop-carrier version will be a94-seater, with all passenger seats facing aft. As a paratrooper the Beverley carries 70 soldiers, as an ambulance 82 casualties, or as afreighter 45,000 lb—all over a distance of 200 nautical miles. Four Bristol Centaurus engines with direct petrol injection are specified, andthe possibilities of installing turboprops such as the Napier Eland or Rolls-Royce Tyne are obvious. Salient particulars (4x3,150 h.p. Centaurus) are: take-off weight,143,000 Ib; max. payload, 50,000 Ib; max. speed 242 m.p.h., recom- mended cruising speed, 173 m.p.h.; service ceiling, 16,000ft; rate ofclimb (all engines, sea level), 760ft/min; take-off to 50ft (all engines operating), 2,910ft; accelerate stop distance, 3,780ft; landing from 50ft(reverse thrust from four engines), 2,580ft; landing from 50ft (no reverse thrust), 2,850ft. U.S.A. Convair R3Y-1 and -2 Tradewind The supreme example of the military transport flying-boat, the Tradewind has unique features. The -1 and -2 versions have been developed for the U.S. Navy's Fleet Logistic Comait R3Y-1 Tradewind.
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