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The Hughes Flying Boat—the largest aircraft ever built—is piloted by designer Howard Hughes on its first and only flight. Built with laminated birch and spruce, the massive wooden aircraft had a wingspan longer than a football field and was designed to carry more than 700 men to battle.
Following the U.S. entrance into World War II in 1941, the U.S. government commissioned the Hughes Aircraft Company to build a large flying boat capable of carrying men and materials over long distances. The concept for what would become the “Spruce Goose” was originally conceived by the industrialist Henry Kaiser, but Kaiser dropped out of the project early, leaving Hughes and his small team to make the H-4 a reality. Because of wartime restrictions on steel, Hughes decided to build his aircraft out of wood laminated with plastic and covered with fabric. Although it was constructed mainly of birch, the use of spruce (along with its white-gray color) would later earn the aircraft the nickname Spruce Goose. It had a wingspan of 320 feet and was powered by eight giant propeller engines.
Development of the Spruce Goose cost a phenomenal $23 million and took so long that the war had ended by the time of its completion in 1946. The aircraft had many detractors, and Congress demanded that Hughes prove the plane airworthy. On November 2, 1947, Hughes obliged, taking the H-4 prototype out into Long Beach Harbor, CA for an unannounced flight test. Thousands of onlookers had come to watch the aircraft taxi on the water and were surprised when Hughes lifted his wooden behemoth 70 feet above the water and flew for a mile before landing.
Despite its successful maiden flight, the Spruce Goose never went into production, primarily because critics alleged that its wooden framework was insufficient to support its weight during long flights. Nevertheless, Howard Hughes, who became increasingly eccentric and withdrawn after 1950, refused to neglect what he saw as his greatest achievement in the aviation field. From 1947 until his death in 1976, he kept the Spruce Goose prototype ready for flight in an enormous, climate-controlled hangar at a cost of $1 million per year. Today, the Spruce Goose is housed at the Evergreen Aviation Museum in McMinnville, Oregon.
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