August , 1942 AIRCRAFT ENGINEERIN G 229 XXII.—The North American Mitchell Bomber H E N.A.-40c (U.S. Army Air Corps a marked dihedral throughout the span. Although little information about the pro Specification B-25c) was designed about The first production aeroplanes were fitted duction aeroplane has been released the follow Tth e same tim e a s an d to fulfil similar duties with a turret and an unusual tail gun position ing figures may be published : t o those performed by the Douglas Boston and (AIRCRAF T ENGINEERING, April, 1942, p. 115). Span 67 ft. 7 in. Glenn Martin Maryland. The aeroplane is The present version is fitted with an American Length 51 ft. 5 in. being supplied to th e U.S. Arm y Air Corps, the power-operated turret, on top of the fuselage, Tare weight 16,000 lb. Red Air Fleet and the Royal Air Force and has and a semi-retractable turret in the bottom of Gross weight 24,000 lb. already been used in th e notable flight to bomb th e fuselage. Max. speed 308 m.p.h. a t 13,000 ft. Range 2,650 miles a t 243 m.p.h. Tokyo. The Mitchell is yet another American type Initial rat e of climb 1,880 ft./min. The Mitchell has two general features that t o be fitted with a tricycle landing gear, a Service ceiling 25,400 ft. are unusual; the centre section has a large development that has received little attention The similarity of line between the Mitchell dihedral, while the outer planes have none ; in this country. and the Mustang is noticeable. The Mustang an d the fuselage is almost rectangular in The engines of the Mitchell are Wright was illustrated in this scries in AIRCRAFT cross - section. The unusual centre section Double-row Cyclones (R-2600-A5B) of 1,700 ENGINEERING , May, 1942, p. 131. is derived from the prototype, which had h.p., with three-bladed hydromatic airscrews.
Aircraft Engineering and Aerospace Technology – Emerald Publishing
Published: Aug 1, 1942