Hughes H-4

The Hughes H-4 Hercules was a prototype heavy transport aircraft designed and built by the Hughes Aircraft company. The aircraft made its only flight on November 2, 1947. It was primaraly built from wood because of wartime raw material restrictions on the use of aluminum. The Hercules is the largest flying boat ever built, and has the largest wingspan of any aircraft in history. It survives in good condition at the Evergreen Aviation Museum in McMinnville, Oregon, USA. [Wikipedia]




Crew 3
Length 218 ft 8 in
Wingspan 320 ft 11 in
Height 79 ft 4 in
Fuselage height 30 ft
Loaded weight 400,000 lb
Powerplant Eight Pratt & Whitney R-4360 Wasp Major radial engines, 4,000 hp each
Propellers Four-bladed Hamilton Standard, 1 per engine
Propeller diameter 17 ft 2 in
Cruise speed 250 mph
Range 3,000 mi
Service ceiling 20,900 ft

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