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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 Mississippi State University XAZ-1 Marvelette ： ウィキペディア英語版 Mississippi State University XAZ-1 Marvelette The Mississippi XAZ-1 Marvelette (or MA18-B Marvelette) was an American research aircraft of the 1960s. A converted Anderson Greenwood AG-14 light single-engined pusher aircraft, it provided the test-bed, or test platform, on which to test the boundary layer control system and ducted propeller installation of the planned XV-11 Marvel STOL research aircraft. One aircraft was converted to XAZ-1 configuration; although underpowered, it provided valuable test data over a year-long flight program. Following the conclusion of test flying, the aircraft was used for ground testing before being scrapped. ==Development and design== The Department of Aerophysics at the Mississippi State University had been involved in a programme of research into boundary layer control on behalf of the Office of Naval Research and the US Army since 1950, carrying out trials on a modified Schweizer TG-3 glider, a Piper L-21 and a Cessna O-1.〔Heyman 1990, p.49〕 As a result of these studies, the US Army awarded the Department a contract to develop a new STOL research aircraft: the XV-11 MARVEL ("Mississippi Aerophysics Research Vehicle, Extended Latitude").〔"(History: XV-11A Marvel )". Department of Aerospace Engineering, ''Mississippi State University''. Retrieved 31 December 2009.〕 The new aircraft was to feature a novel form of wing warping to deflect the wing trailing edges to vary the wing's camber instead of conventional flaps, while the wings were to be built of glassfibre in order to ensure that the wing was as smooth as possible. In order to test these features, it was decided to build a smaller and less powerful test-bed.〔Heyman 1990, p.49–50.〕 The aircraft chosen as the basis for the testbed was the Anderson Greenwood AG-14, a single-engined, twin-boom pusher light aircraft that had been built in small numbers in the late 1940s and early 1960s. The type was already familiar to Mississippi State University, as it had used one to test ducted propellers. Initially, a simple conversion, to be designated MA-18, was planned, but it was later decided to make the test bed more closely resemble the final full-scale aircraft, with the resultant changes causing re-designation to MA-18A. It was later named "Marvelette", and received the military serial number 62-12147 and the US Army designation XAZ-1.〔Heyman 1990, p.50.〕〔Matt, Paul R. "(Anderson Greenwood AG-14 and the MARVEL program )". Retrieved 31 December 2009.〕 The Marvelette was a high-winged monoplane with an aluminium monocoque rear fuselage and a glassfibre nose. The twin tailbooms of the AG-14 were replaced by the propeller duct, which incorporated movable segments of its trailing edge to replace the rudder and elevator and a non-retractable tricycle undercarriage was fitted. The new wing was made of glassfibre and incorporated the camber-changing mechanism and perforations to allow suction for boundary layer control.〔〔 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「Mississippi State University XAZ-1 Marvelette」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.