Boeing Vertol XCH-62
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High Quality Content by WIKIPEDIA articles! The Boeing Vertol XCH-62 was a three turbine-engined, heavy-lift helicopter project for the United States Army. Approved in 1971, only one aircraft was built before it was cancelled in 1974. An attempt by NASA to resurrect the program was aborted in 1983.While the CH-47 Chinook is a large helicopter by American standards, its payload of 28,000 lb is dwarfed by the huge Soviet-Russian heavy-lift helicopters such as the Mil Mi-26 (44,000 lb) and the experimental Mil Mi-12 (55,000-88,000lb), and for a long time Boeing and the US military had an urge to…mehr

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High Quality Content by WIKIPEDIA articles! The Boeing Vertol XCH-62 was a three turbine-engined, heavy-lift helicopter project for the United States Army. Approved in 1971, only one aircraft was built before it was cancelled in 1974. An attempt by NASA to resurrect the program was aborted in 1983.While the CH-47 Chinook is a large helicopter by American standards, its payload of 28,000 lb is dwarfed by the huge Soviet-Russian heavy-lift helicopters such as the Mil Mi-26 (44,000 lb) and the experimental Mil Mi-12 (55,000-88,000lb), and for a long time Boeing and the US military had an urge to match or top the Mil heavy lifters.In the late 1960s, Boeing came up with designs for machines with broad similarities to the Sea Knight and Chinook, but about twice the size of the Chinook in terms of linear dimensions. Proposed machines included the "Model 227" transport and the "Model 237" flying crane.