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Sonex Electric Sport Aircraft
The Sonex Electric Sport Aircraft (ESA) is a two-place (one place with additional batteries) aircraft design currently under development by Sonex Aircraft, using the Sonex e-Flight electric system for thrust.〔 Sonex is designing this aircraft as a part of an attempt to develop alternate fuels, to ensure feasibility of inexpensive sport aviation in the future.〔(【引用サイトリンク】title=Sonex Unveils Electric Airplane )〕〔
==Design and development==
The ESA is designed to use the Sonex e-Flight electric system, which is concurrently under development. The airframe is developed from the Xenos, and is not intended to compete with the other aircraft in the Sonex line.〔 The initial flights, however, have used a Waiex airframe, and are centered around testing the electric power system.〔 The aircraft will be aluminum riveted, and features will include a shortened wingspan and tail tips (in relation to the Xenos), aerobatic wing tips, 8' flaps instead of spoilers, and for the center of gravity, an auxiliary battery and controller in the tail cone.〔
The electrical system will be 270 volts and 200 amps, and will be adjustable to different power outputs.〔(【引用サイトリンク】title=Sonex Explores Alternative Engines )〕 As of 2007, the brushless DC-Cobalt motor was designed be very lightweight, at only , to operate at 90% efficiency, and to use Lithium-ion and Lithium-polymer batteries.〔(【引用サイトリンク】title=AIRVENTURE: Sonex plans battery-powered engine )〕〔(【引用サイトリンク】title=Sonex Moves Closer to Electric Flight )〕〔
For safety, the batteries are contained in "safety boxes", which are designed, in the event of a problem, to direct fire or explosion through designated holes, and to help cool the cells normally. In the final version, the batteries will be able to be charged in the aircraft, while retaining the ability to be easily removed and swapped with other batteries.〔(【引用サイトリンク】title=Sonex Aircraft and AeroConversions Show Electric Propulsion System for Sport Aircraft )〕 The design won the Lindberg Electric Aircraft Prize for the "Best Electric Aircraft Sub-System or Component Technology" at Airventure 2010, and at that time the first completion of a production aircraft was anticipated for the end of 2011.〔(【引用サイトリンク】title=First Lindbergh Electric Aircraft Prizes recognizes Yuneec, Sonex and Antares with video )〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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