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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0392096 (1982-06-25) |
발명자 / 주소 |
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출원인 / 주소 |
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인용정보 | 피인용 횟수 : 20 인용 특허 : 1 |
This invention is an airfoil which has particular application to the blade or blades of rotor aircraft such as helicopters and aircraft propellers. The airfoil thickness distribution and camber are shaped to maintain a near zero pitching moment coefficient over a wide range of lift coefficients and
An airfoil for a rotating blade such as a helicopter blade comprising: airfoil means; said airfoil means having upper surface means, lower surface means, a leading edge area, and a trailing edge; said upper surface means having a surface slope which is positive and continuously decreasing from the p
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