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21st Century Airships SPAS 13 : ウィキペディア英語版 | 21st Century Airships SPAS 13 __NOTOC__ The 21st Century Airships SPAS 13 is a Canadian semi-rigid helium airship demonstrator designed and built by 21st Century Airships of Newmarket, Ontario. ==Design and development== The SPAS 13 was a development of the earlier SPAS 1 and was designed to demonstrate the advantages of a spherical airship.〔 The 43 ft (13.11 m) diameter spherical envelope is made of Spectra fabric with an inner helium containing envelope of Mylar film reinforced with Kevlar.〔 The two-seat cockpit is internal to the envelope with panoramic windows in the envelope to provide an external view.〔 The SPAS 13 is powered by two Rotax 503 piston engines on external struts, four vanes behind each engine are used to provide control by deflecting the thrust.〔
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「21st Century Airships SPAS 13」の詳細全文を読む
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