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The Raven Explorer II is an American autogyro designed by Raven Rotorcraft of Boulder Colorado and later El Prado, New Mexico, introduced in the 1990s. No longer in production, when it was available the aircraft was supplied as a kit for amateur construction.〔Purdy, Don: ''AeroCrafter - Homebuilt Aircraft Sourcebook, Fifth Edition'', page 328. BAI Communications, 15 July 1998. ISBN 0-9636409-4-1〕 Introduced in the mid-1990s the Explorer II design is now out of production as the company is developing into the Raven Rotor-Plane for the light-sport aircraft category.〔〔 ==Design and development== The aircraft was designed to comply with the US ''Experimental - Amateur-built'' aircraft rules. It features a single main rotor, a two-seats-in side-by-side configuration open cockpit without a windshield and conventional landing gear. The acceptable power range was and the standard engine used is a three cylinder in-line, liquid-cooled, four-stroke, Geo Metro automotive conversion powerplant in tractor configuration.〔 The aircraft fuselage is made from welded 4130 steel and bolted-together aluminum tubing. Its two-bladed rotor has a diameter of . The aircraft's specifications include a typical empty weight of and a gross weight of , giving a useful load of . With full fuel of the payload for the pilot, passengers and baggage is .〔 The standard day, sea level, no wind, take off with a engine is and the landing roll is .〔 The manufacturer estimated the construction time from the supplied kit as 100 hours.〔 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「Raven Explorer II」の詳細全文を読む スポンサード リンク
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