PROBLEM TO BE SOLVED: To provide an aircraft and method of countering aerodynamic effects of a propeller wake.SOLUTION: An aircraft comprises: a fuselage 42 having a centerline 44; a wing 46 extending from the fuselage 42 and having a leading edge 56 and a trailing edge; an engine 48 mounted on the wing 46 and having a rotating output shaft 50; and a propeller 52 configured to generate a rotating flow field to define a propeller wake when the propeller 52 is rotated by the rotating output shaft 50. The propeller 52 is located in front of the leading edge 56 of the wing 46 so that the propeller wake flows over the wing 56 forming localized areas of an effectively increased angle of attack generating corresponding increased wing loading, with the wing 56 having corresponding localized areas of reduced chord length 62 to neutralize the wing loading, and forming localized areas of an effectively decreased angle of attack generating corresponding decreased wing loading, with the wing 56 having corresponding localized areas of increased chord length 64 to neutralize the wing loading.SELECTED DRAWING: Figure 2
【課題】プロペラ伴流の空気力学的な影響を打ち消す航空機および方法を提供する。【解決手段】中心線44を有する胴体42と、胴体42から延在し、前縁56および後縁を有する翼46と、翼46に取り付けられ、回転出力軸50を有するエンジン48と、プロペラ52が回転出力軸50によって回転させられるとき、プロペラ伴流を画定するように回転流れ場を発生させるプロペラ52と、プロペラ52が翼46の前縁56の前方に配置され、その結果、プロペラ伴流が翼56通って流れ、迎え角が事実上増大した局所領域を形成し、これに対応して翼面荷重が増大するが、これに伴って、翼56の対応する局所領域での弦長62を短くして翼面荷重を相殺する。また、迎え角が事実上減少した局所領域を形成し、それに対応して翼面荷重が減少するが、これに伴って、翼56の対応する局所領域での弦長64を長くして翼面荷重を相殺する。【選択図】図2
AIRCRAFT AND METHOD OF COUNTERING AERODYNAMIC EFFECTS OF PROPELLER WAKE
プロペラ伴流の空気力学的な影響を打ち消す航空機および方法
2017-01-26
Patent
Electronic Resource
Japanese
IPC: | B64C AEROPLANES , Flugzeuge |
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