| 翻訳と辞書 |
| Sikorsky Firefly ： ウィキペディア英語版 |
Sikorsky Firefly
The Sikorsky Firefly is an all-electric helicopter built for research purposes by Sikorsky Aircraft. It has been called the world's "first all-electric helicopter".〔 The Firefly is a modified Sikorsky S-300C helicopter with its engine replaced by an electric motor and two lithium-ion battery packs. The helicopter can hold only the pilot, no passengers, and operate for 12 to 15 minutes. It has a top speed of 80 knots, or about 92 mph.
Sikorsky announced the existence of the new aircraft July 19, 2010 at the Farnborough International Air Show in the United Kingdom and displayed it for the first time at the Experimental Aircraft Association's AirVenture 2010 convention in Oshkosh, Wisconsin on July 26. It was expected that the helicopter would make its first flight in late 2010 or in early 2011.〔Burgeson, John, "Sikorsky to debut first all-electric helicopter", ''Connecticut Post'' of Bridgeport, Connecticut, July 25, 2010〕
==Modifications of the Sikorsky S-300C==
The Firefly was created by replacing the engine of the S-300C light helicopter, which has been in use for nearly half a century, during which time more than 3,000 have been built. The S-300C's Lycoming 190-horsepower, 5.9-liter, 4-cylinder gasoline engine was replaced with an electric motor, new motor mount and two battery packs located on each side of the pilot. The rotor control, transmission and other systems were left essentially unchanged.〔Burgeson, John, "Sikorsky to debut first all-electric helicopter", ''Connecticut Post'' of Bridgeport, Connecticut, July 25, 2010〕
If the aircraft completely loses power, it can auto-rotate for a safe landing. The pilot should have plenty of warning if the batteries run down during flight.〔
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「Sikorsky Firefly」の詳細全文を読む
スポンサード リンク
| 翻訳と辞書 : 翻訳のためのインターネットリソース |
Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.
|
|