翻訳と辞書 Words near each other ・ Nasal clicks ・ Nasal concha ・ Nasal congestion ・ Nasal consonant ・ Nasal cycle ・ Nasal embryonic LHRH factor ・ Nasal emission ・ Nasal EPAP ・ Nasal foramina ・ Nasal fracture ・ Nasal glands ・ Nasal glial heterotopia ・ Nasal glioma ・ Nasal hair ・ Nasal helmet ・ NASA Centurion ・ NASA Chief Scientist ・ NASA Clean Air Study ・ Nasa connectans ・ NASA Crows Landing Airport ・ NASA Deep Space Network ・ NASA Design Reference Mission 3.0 ・ NASA DEVELOP National Program ・ NASA Distinguished Public Service Medal ・ NASA Distinguished Service Medal ・ NASA Docking System ・ NASA Earth Observatory ・ NASA Earth Science ・ NASA eClips ・ NASA Edge Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク NASA Centurion ： ウィキペディア英語版 NASA Centurion The NASA Centurion was the third aircraft developed as part of an evolutionary series of solar- and fuel-cell-system-powered unmanned aerial vehicles. AeroVironment, Inc. developed the vehicles under NASA's Environmental Research Aircraft and Sensor Technology (ERAST) program. They were built to develop the technologies that would allow long-term, high-altitude aircraft to serve as "atmospheric satellites", to perform atmospheric research tasks as well as serve as communications platforms.〔(NASA Helios factsheet )〕 It was developed from the NASA Pathfinder Plus aircraft and was developed into the NASA Helios. ==Centurion== Centurion, originally built for the altitude on solar power milestone specified by the ERAST project, was the third generation aircraft in the NASA Pathfinder series of electrical-powered flying wing unmanned aircraft. The ERAST program managers had determined that an aircraft based on the Pathfinder/Pathfinder Plus concept would be the lowest risk approach of achieving the altitude goal.〔(NASA Centurion fact sheet, archived at archive.org, accessed September 8, 2008 )〕 Initially, a quarter-scale model of the Centurion was test flown at El Mirage Dry Lake on March 4, 1997. The full-size Centurion's maiden flight took place at Rogers Dry Lake on November 10, 1998, and lasted a total of 1 hr and 24 minutes. At the time, it weighed in at (including a steel anvil hanging on its centerline to simulate a payload) for its first flight. The flight was nearly flawless and was followed by a second similar performance on November 19, this time before a crowd of VIPs and Media. It lasted 1 hr and 29 minutes. The third and final flight of the low altitude test series took place on December 3. On this flight the vehicle was loaded down to its maximum gross weight of to test its weight carrying capability. Total flight time on this flight was 30 minutes, as it was shortened because high winds were anticipated by mid-morning. All of these flights took place on battery power and verified the design's handling qualities, performance, and structural integrity. Following these three flights, NASA decided to expand the aircraft into the Helios Prototype, with work starting in January, 1999.〔〔 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 Centurion」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.