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Kinney HRH
The Kinney HRH (''Hot Rod Helicopter'') is an American helicopter that was designed by Robert Kinney and produced by Vortech, Inc in the form of plans for amateur construction. The aircraft was first shown at Sun 'n Fun in 2002.〔Bayerl, Robby; Martin Berkemeier; et al: ''World Directory of Leisure Aviation 2011-12'', page 192. WDLA UK, Lancaster UK, 2011. ISSN 1368-485X〕 ==Design and development== The HRH was designed to comply with the US ''experimental - amateur-built'' rules. It features a single main rotor, a single-seat enclosed cockpit with a windshield, skid-type landing gear and a four cylinder, air-cooled, four-stroke, Subaru EJ25 automotive engine. It is the high power to weight ratio that gives the aircraft its name.〔〔 The aircraft fuselage is made from a mix of welded 4130 steel tube and bolted-together aluminum tubing, with a composite cabin shell. Its diameter two-bladed Waitman composite rotor has a chord of . The tail rotor has a diameter. The aircraft has an empty weight of and a gross weight of , giving a useful load of . With full fuel of the payload is . The HRH can hover in ground effect at and out of ground effect at 〔〔
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「Kinney HRH」の詳細全文を読む
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