Download e-book for iPad: American Military Transport Aircraft Since 1925 by E.R. Johnson

By E.R. Johnson

ISBN-10: 0786462698

ISBN-13: 9780786462698

With no the aid of airlift, the fashionable American army laptop will be delivered to a standstill. in view that international warfare II--beginning with the chilly conflict and carrying on with as much as the current day--the U.S. defense force have come more and more to depend on airlift for mobility. the ability to swiftly circulation and thereafter aid an army operation--anywhere on this planet, at any time--has turn into a foundational component of American protection coverage. This paintings offers the reader with a accomplished historic survey--including technical necessities, drawings, and photographs--of every one kind of fixed-wing plane utilized by U.S. army forces over a virtually 90-year interval to hold out the airlift challenge.

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Length 27 ft. , wing area 259 sq. ft. Designed by John Northrop and Gerard Vultee, the Lockeed Vega 1 made its first flight in July 1927 and was followed by a succession of improved Vega models until production ceased in 1931. The Vegas, featuring a molded plywood fuselage and a fully cantilevered, shoulder- 40 American Military Transport Aircraft Since 1925 mounted wooden wing, were among the most aerodynamically clean aircraft of their day. Though too small to be a practical airliner, the Vegas did establish many speed and distance records, most notably a Vega 5B named Winnie Mae that Wiley Post flew around-the-world in 1931.

The Air Corps grounded and removed all C-6s from service in 1933 after the crash of one aircraft was attributed to structural fatigue. Naval Variants: The Navy acquired two S-38As in 1929 as the PS-2, followed by four S- Sikorsky C-6 Series I —1925 to 1962 33 One of three S-41s delivered to the Navy in 1933 as the RS-1. The S-41 was 10 percent larger than the S-38 and lifted half again the useful load. 38Bs between 1929 and 1932 as the PS-3. Naval versions initially carried machine guns in the bow and stern; however, all armament was subsequently removed and the aircraft re-designated transports as the RS-2 and -3, respectively.

Total military versions: 10 (5 USAAC; 5 USN/USMC). Capacity: Crew of two plus 13 passengers or 3,000 lbs. of cargo. Powerplants: Three 450-hp Pratt & Whitney R-1340–3 Wasp 9-cylinder air-cooled radial engines driving two-bladed Hamilton Standard fixed-pitch metal propellers. Performance: Max. ; range 500 mi. Weights: 7,650 lbs. empty, 12,650 lbs. loaded. Dimensions: Span 77 ft. , length 50 ft. , wing area 835 sq. ft. The Army purchased one Ford 5-AT-B for evaluation in mid–1929 under the designation C-4.

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American Military Transport Aircraft Since 1925 by E.R. Johnson


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