Evaluation of High Lift Devices of the Quiet STOL Experimental Aircraft ASKA
| Autor: | STOLプロジェクト推進本部飛行試験室, Flight Test Team STOL Research Aircraft Project Group |
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| Jazyk: | japonština |
| Rok vydání: | 1991 |
| Předmět: | |
| Zdroj: | 航空宇宙技術研究所報告 = Technical Report of National Aerospace Laboratory TR-1102. 1102:5 |
| ISSN: | 0389-4010 |
| Popis: | 「飛鳥」にはUSB方式による高揚力の発生を効果的にするために,各種の装置が組み込まれている。外翼前縁部とエルロン上面のBLC,フラッペロンとしてのエルロン・ドループ,及び深いフラップ角でもエンジン排気を翼上面に十分沿わせるためのボルテクス・ジェネレータである。これらの空力的効果について,飛行試験結果を解析して論ずる。更に,バフェットの発生を遅らせる,バフェット緩和装置の効果についても併せて報告する。 The powered high lift devices of ASKA, the National Aerospace Laboratory (NAL) Short Take-Off and Landing (STOL) experimental aircraft, is an upper surface blowing (USB) type which enables turning the jet exhaust flow downward, thus producing higher lift due to the Coanda effect. Several pieces of equipment were incorporated which enhanced the USB high lift generation, i.e., boundary layer contral (BLC), drooped ailerons, and vortex generators. The aerodynamic effects of these equipment are described based on flight test data. In early flight test stages, a shallow ASKA USB flap configuration encountered buffeting, beginning at a lower angle of attack than expected, thereby limiting the flight envelope. Based on the wind tunnel test surveys, a nacelle fence and drooped leading edge were subsequently installed to delay the buffet onset. The effect of these devices are also discussed based on flight test results. 資料番号: NALTR1102000 レポート番号: NAL TR-1102 |
| Databáze: | OpenAIRE |
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