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The Eagle's Perch was an American helicopter that was designed by the Nolan brothers and produced by Eagle's Perch Inc. of Carrollton, Virginia. Now out of production, when it was available the aircraft was supplied as a kit for amateur construction.〔Purdy, Don: ''AeroCrafter - Homebuilt Aircraft Sourcebook, Fifth Edition'', page 322. BAI Communications, 15 July 1998. ISBN 0-9636409-4-1〕 ==Design and development== The design was intended to be a simplified helicopter. Constructed by two brothers with no prior aeronautical experience or skills it employed a unique coaxial, counter-rotating, fixed pitch rotor system with no collective control, but employed a rudder. To account for the fact that the aircraft could not autorotate after a power failure, it was equipped with two engines and could hover on either one. A ballistic parachute was optional.〔 The Eagle's Perch was designed to comply with the US ''Experimental - Amateur-built'' aircraft rules. The aircraft had a standard empty weight of . It featured two coaxial main rotors, a single-seat open cockpit without a windshield, skid-type landing gear and two twin-cylinder, air-cooled, two-stroke, dual-ignition Hirth 2706 engines.〔 The aircraft fuselage was made from welded steel tubing. Its diameter two-bladed rotors were of a fixed pitch design. The aircraft had an empty weight of and a gross weight of , giving a useful load of . With full fuel of the payload for pilot and baggage was .〔 The manufacturer estimated the construction time from the supplied kit to be 240 hours.〔 The design was later developed into the Phoenix Skyblazer. 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「Eagle's Perch」の詳細全文を読む スポンサード リンク
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