| 翻訳と辞書 |
| NACA Report No. 742 ： ウィキペディア英語版 |
NACA Report No. 742
NACA Report No. 742 - Wind Tunnel Investigation of NACA 23012 Airfoil with 30%-chord Venetian-blind Flaps was issued by the United States National Advisory Committee for Aeronautics in 1942. It describes the result of wind-tunnel testing using a common airfoil section from the period, equipped with an unusual flap configuration.
==Summary==
An investigation was made in the NACA 7x10 feet wind tunnel of a NACA 23012 airfoil with 30%-chord venetian-blind flaps having one, two, three and four slats of Clark Y section. The three-slat arrangement was aerodynamically the best of those tested but showed practically no improvement over the comparable arrangement used in the preliminary tests published in NACA Report No. 689. The multiple-slat flaps gave slightly higher lift coefficients than the one-slat (Fowler) flap but gave considerably greater pitching-moment coefficients. An analysis of test data indicates that substitution of a thicker and more cambered section for the Clark Y slats should improve the aerodynamic and the structural characteristics of the venetian-blind flap.
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「NACA Report No. 742」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.
|
|