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The Rotax 915 iS is an Austrian aircraft engine, under development by Rotax of Gunskirchen for use in ultralight aircraft, homebuilt aircraft, small helicopters and gyroplanes. The intention is that the engine will eventually be type certified.〔(【引用サイトリンク】title=Rotax Announces New 135-hp Turbocharged Engine )〕〔(【引用サイトリンク】title=Rotax-Owner.com - ROTAX 915 IS: BRP UNVEILS A NEW TURBOCHARGED ROTAX AIRCRAFT ENGINE )〕 The engine was first publicly displayed at AirVenture in July 2015.〔 ==Design and development== The Rotax 915 iS is a four-cylinder four-stroke, horizontally-opposed, turbocharged, air and liquid-cooled, gasoline engine design, with a mechanical gearbox reduction drive. The turbocharger has a compression ratio of 3.5:1 and the engine will have a critical altitude of . It employs dual electronically controlled fuel injection, using dual channel Rockwell Collins ECUs, with dual ignition and produces .〔 The engine is based on the Rotax 912, but differs in that it has a reinforced crankshaft, new pistons, a new gearbox and a turbocharger. Time between overhauls is expected to ultimately be 2000 hours.〔 Production is forecast to begin in 2017.〔 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「Rotax 915 iS」の詳細全文を読む スポンサード リンク
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