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Aviation History
1944
1944 - 0018.PDF
\ XfS Wv A FLIGHT JANUARY 6TH, 1944 OKINC BACK \\ 1 ^SBtlv^^ :-- --fjamPBK; ^S^^^^^™fl!IIHH ••<*•& mm"-* JS 1 ) m « • '': N [ifiiii||ii|i|i|M|i,iiiiiiiiii •• jimiimy, «> The big, straight-sided York cabin is designed to take up to fifty passengers or their equivalent weight in freight or fuel. still more recent modification has fins and rudders of a different shape, these and other changes having " cleaned-up " the machine and considerably improved the performance. The Avro Lancaster has been fitted with Bristol Hercules engines, this version being known as the Mark II. A Lancaster has been converted from a bomber into a mail-carrier (for the benefit of Canadians in this country), and, of course, the main modifica tion, if indeed it is not more correctly to be adjudged an entirely new type, is the fitting of a larger fuselage for accom modating passengers and freight. This version, the Avro York, has already demonstrated its value in connection with the recent Teheran Conference. Developments in the four-engined bomber class may be expected, but the introduction of a new type takes a long time from the prototype to the production of it in quan tities. The greatest step-up in size of which information has been allowed to be published is the Boeing B29 with its wing span of 141ft., a bomb load in the region of 17,000 lb. when the range is 1,000 miles, and a gross A 1943 "RELEASE' : The Napier Sabre-engined Heston racer which was originally designed to beat the world's speed record. weight of well over 100,000 lb. It may be assumed thak this machine is mainly intended for the war in the Pacific? One of the most striking examples of evolutionary development is the Boeing Fortress. The original B299, which was the forerunner of the Fortress, had four Pratt and Whitney engines of 700 h.p. each. The earlier pro duction models were armed with a few hand-operated machine guns in " blisters." Gradually the armament has been increased to a total of 13 guns, comprising several power-operated turrets and in cluding, in the model B-17G, a chin turret. At the same time the engine power has risen from the original 4 x 700 h.p. to 4 x 1,200 h.p. (Wright turbo- supercharged Cyclones). The bomb load, however, is not very great except in the case of the very short-range version which carries bombs in racks under the wing. The only new British fighter of which information was re leased during 1943 was the Hawker Typhoon. It is a con siderably larger machine than the Hurricane (wing span 41ft. 7m.) and is fitted with the new Napier Sabre 24-cyl. sleeve- On the drawing board the Hawker Typhoon (Napier Sabre) was an interceptor fighter. It is, how- 0 ever, earning a very good living as a fighter-dive bomber.
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