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Stationary High Altitude Relay Platform : ウィキペディア英語版 | Stationary High Altitude Relay Platform SHARP, short for Stationary High Altitude Relay Platform, was an experimental aircraft using beam-powered propulsion designed by the Communications Research Centre Canada (CRC) and built by the University of Toronto Institute for Aerospace Studies (UTIAS) during the 1980s. SHARP used microwaves to provide energy from a ground station that powered electric motors spinning propellers to keep the aircraft aloft. The power was also used for the onboard electronics. SHARP could remain aloft indefinitely, and was intended to be used as a sort of low-altitude communications satellite for smaller geographical areas. ==History==
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Stationary High Altitude Relay Platform」の詳細全文を読む
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