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The aircraft made only one brief flight, on November 2, 1947, and the project never advanced beyond the prototype. Built from wood (Duramold process) because of wartime restrictions on the use of aluminum and concerns about weight, the aircraft was nicknamed the Spruce Goose by critics, although it was made almost entirely of birch.
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 ...
Hughes Aircraft was founded to build Hughes' H-1 Racer world speed record aircraft, and it later modified other aircraft for his transcontinental and global circumnavigation speed record flights. The company relocated to Culver City, California , in 1940 and began manufacturing aircraft parts as a subcontractor. [ 4 ]
Pages in category "Hughes aircraft" The following 21 pages are in this category, out of 21 total. This list may not reflect recent changes. *
Pages in category "Hughes Aircraft Company" The following 26 pages are in this category, out of 26 total. This list may not reflect recent changes. ...
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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.
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 ...