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The Hughes H-4 Hercules (commonly known as the Spruce Goose; registration NX37602) is a prototype strategic airlift flying boat designed and built by the Hughes Aircraft Company. Intended as a transatlantic flight transport for use during World War II , it was not completed in time to be used in the war.
In 1955, Howard Hughes split the helicopter production unit from the Hughes Aircraft Company, and reconstituted it with Hughes Tool Company, calling it Hughes Tool Company's Aircraft Division. The Aircraft Division had a focus on the production of light helicopters, mainly the Hughes 269 / 300 and the OH-6 Cayuse / Hughes 500 .
The Hughes H-4 Hercules, made of birch ply Duramold Samples of Duramold at the Evergreen Aviation & Space Museum Duramold is a composite material process developed by Virginius E. Clark . Birch or poplar plies are impregnated with phenolic resin and laminated together in a mold under heat (280 °F, 138 °C) and pressure for use as a lightweight ...
Pages in category "Hughes aircraft" The following 21 pages are in this category, out of 21 total. This list may not reflect recent changes. *
Development of the D-2 began around 1937, but little is known about its early gestation because Hughes' archives on the aircraft have not been made public. Aircraft historian René Francillon speculates that Hughes designed the aircraft for another circumnavigation record attempt, but the outbreak of World War II closed much of the world's ...
A month later, on 13 September at Martin Field near Santa Ana, California, Hughes broke the landplane speed record clocking 352.39 mph (567.12 km/h) averaged over four timed passes. The aircraft was loaded with a minimal amount of fuel to keep the weight down and Hughes was not supposed to make the 3rd and 4th passes.
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The second prototype, 44-70156, was fitted with conventional single four-bladed propellers, and was flown by Hughes on 5 April 1947. [37] Initially, the USAAF had insisted that Hughes not be allowed to fly the aircraft, but after a personal appeal to Generals Ira Eaker and Carl Spaatz, he was allowed to do so against posting of $5 million in security.