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Military


B-17B

The B-17B was an improved version of the B-17A. The major changes in the -B model included a larger rudder, a larger set of flaps, and a redesigned nose. The nose-mounted turret was replaced by a plexiglass nose making the B-17B about 7 inches shorter than the -A. The Army Air Corps ordered 39 B-17Bs in 1938 and 1939.

In October 1942 the B-17Bs were redesignated as RB-17B (R for restricted). These aircraft were used for non-combat training, transport, messenger and liaison duties.

Type Number built/ converted Remarks B-17B 39 Improved B-17A Serial numbers: 38-211 to 223; 38-258 to 38-270; 38-583 to 38-584; 38-610; 39-1 to 39-10 Notes: Boeing Model 299M; became RB-17B in October 1942 SPECIFICATIONS: Span: 103 ft. 9 in. Length: 67 ft. 11 in. Height: 15 ft. 0 in. Weight: 38,000 lbs. design gross weight Armament: One .30-cal. and six .50-cal.) machine guns and four 1,100-lb. bombs Engines: Four Wright R-1820-51 turbo-supercharged radials of 1,000 hp each PERFORMANCE: Maximum speed: 292 mph at 25,000 ft. Cruising speed: 181 mph Service ceiling: 36,000 ft. Range: 3,600 miles (maximum ferry range)



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Page last modified: 10-08-2018 02:01:08 ZULU