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Lamson L-106 Alcor
The Lamson L-106 Alcor is an American, high-wing, experimental, pressurized research glider that was designed and built by Bob Lamson. The Alcor was the first pressurized sailplane ever built.〔Said, Bob: ''1983 Sailplane Directory, Soaring Magazine'', page 46. Soaring Society of America November 1983. USPS 499-920〕
==Design and development==
The Alcor was conceived during the 1960s as a high altitude research aircraft by Lamson. He had served in the US Army Air Corps and also worked for the Boeing Aircraft Company as a test pilot. While at Boeing during the 1940s, he worked on high-altitude oxygen systems, which led him to investigate aircraft pressurization. He attended the University of Washington.〔〔〔〔
The Alcor is named for the star in Ursa Major and was optimized for flight in weak mountain wave soaring conditions. The aircraft is constructed from Sitka spruce veneer, covered with layers of fiberglass. The wings and tail use foam sandwiches, covered in S-glass. The Alcor was one of the first gliders to be built from composites.〔〔〔
The Alcor's span wing employs a Feifel airfoil. The pressurization system provides two to three inches of Mercury pressure differential. The cockpit also incorporates a solar heater to keep the canopy clear of ice condensation at high altitude and also provide pilot warmth.〔〔〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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