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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク NASA GL-10 Greased Lightning ： ウィキペディア英語版 NASA GL-10 Greased Lightning The GL-10 Greased Lightning is a hybrid diesel-electric tiltwing aircraft. ==Development== The full-scale GL-10 will be a diesel-electric tilt-wing. Currently, NASA has built a 50% scale 10-foot wing span all electric battery powered demonstrator. The wings and horizontal stabilizer rotate with fixed motor pods to facilitate vertical flight. The wing has eight electric motor driven propellers while the horizontal stabilizer has two. In the future full-scale version, power will be generated by two 6 kW (8 hp) diesel engines which will charge lithium ion batteries. The propellers on the leading edge of the wing provide high speed flow, and thus lift, on the wing even in low forward velocity flight allowing pitch, roll, and yaw control authority during the critical transition phase from hover to forward flight. The VTOL capability of this new class of UAV eliminates the requirement for additional ground support equipment like launch catapults and landing catch mechanisms. In addition, the propellers are designed for a relatively low tip speed resulting in a marked reduction in noise.〔(【引用サイトリンク】url=http://www.popsci.com/article/technology/nasas-greased-lightning-tests-vertical-takeoff )〕〔(【引用サイトリンク】accessdate=25 August 2014 )〕〔(【引用サイトリンク】accessdate=25 August 2014 )〕 The aircraft is designed to complete several vertical take-off and landings during its mission with a loiter endurance of 24 hours in the forward flight mode.〔Fredericks, W. J., Moore, M. D., & Busan, R. C. (2013). Benefits of Hybrid-Electric Propulsion to Achieve 4x Increase in Cruise Efficiency for a VTOL Aircraft.〕〔Rothhaar, P. M., Murphy, P. C., Bacon B. J., Gregory, I. M., Grauer, J. A., Busan, R. C., & Croom, M. A. (2014, June). NASA Langley Distributed Propulsion VTOL Tilt-Wing Aircraft Testing, Modeling, Simulation, Control, and Flight Test Development. In 14th AIAA Aviation Technology, Integration, and Operations Conference, Atlanta, GA.〕〔Busan, R. C., Rothhaar, P. M., Croom, M. A., Murphy, P. C., Grafton, S. B., & O-Neal, A. W. Enabling Advanced Wind-Tunnel Research Methods Using the NASA Langley 12-Foot Low Speed Tunnel.〕 The GL-10 performed transitions between vertical and horizontal flight in 2015. 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「NASA GL-10 Greased Lightning」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.