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Aviation History
1944
1944 - 0294.PDF
150 FLIGHT Studies in Recognition Aircraft in F THE Avro Lancaster II is fitted with Hercules radial engines, instead of in-line Merlins. With a maximum bomb-load of approximately 8 tons, the Lancaster's top speed is about 300 m.p.h., and maximum range approximately 3,000 miles, but not simultaneously. Armament consists of 0.303m. machine guns in nose, dorsal and tail power-operated turrets, and some Lancasters have been fitted with a ventral ball-type turret. Recognition points include mid-wings tapering to round tips from flat, rectangular centre-section, underslung nacelles with circular cowlings, deep narrow fuselage with raised cabin top, and tall egg-shaped twin fins and rudders. Some versions have a dropped bomb bay as shown; others preserve an unbroken under-line. Dimensions: Span, 102ft. ; length, 69ft. oin.; height, 20ft. Gin.; wing area, 1,300 sq. ft. Avro Lancaster II Heavy Bomber Boeing B-17G Flying Fortress II THE first example of the Boeing Flying Fortress II was the B-17E; then came the B-17F with an improved nose, after which the addition of a chin turret with a pair of 0.5m. machine guns produced the B-17G its four 1,600 h.p. Wright "double-row" 14-cylinder Cyclones are turbo-supercharged, giving it very good altitude performance and a top speed of about 300 m.p.h. Maximum range is about 3,500 miles, but maximum operational bomb-load is not more than 5 tons. A total of thirteen 0.5m. machine guns are disposed in chin, dorsal, ball, and tail turrets and in the nose and waist. Chiei, recognition feature is the large area of fin and rudder, which * includes an enormous dorsal fillet extending halfway along the fuselage. High aspect-ratio wings and tailplane taper to small round tips. Dimensions: Span, 103ft. gin.; length, 73ft.; height, 15ft. 6in.; wing area, 1,418 sq. ft.
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