| 直升机低速飞行特性与意外右偏航 |
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| 引用本文： | 廖伦金.直升机低速飞行特性与意外右偏航[J].飞行力学,1994,12(2):87-90. |
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| 作者姓名： | 廖伦金 |
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| 作者单位： | 中国民航飞行学院一分院 |
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| 摘 要： | 根据国外有关参考资料，对直升机丧尾桨推力导致意想不右偏航进行了讨论分析，简单介绍了直升机飞行时的四种飞行特性，（风标稳定性、尾桨涡环状态、主旋翼桨盘旋涡影响，丧失前飞升力）在意外右偏航中的作用和特点，以及改出方法和实施改出的应急措施，为飞行人员保证飞行安全提供了参考依据。
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| 关 键 词： | 稳定性 意外右偏航 风标稳定性 直升机 |
HELICOPTERS LOW SPEED FLIGHT CHARACTERISTICS AND UNANTICIPATED RIGHT YAW |
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| Liao Lunjin.HELICOPTERS LOW SPEED FLIGHT CHARACTERISTICS AND UNANTICIPATED RIGHT YAW[J].Flight Dynamics,1994,12(2):87-90. |
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| Authors: | Liao Lunjin |
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| Institution: | CAAC Fling Institute The First Branch |
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| Abstract: | Loss of tail rotor thrust for a helicopter can catise an uncommanded rightyaw.A single rotor helicopter reveals an unanticipated right yaw at airspeeds less than55.5 km/h under certain conditions such as Weathercock stability,Tail rotor vortex ringstate,Main rotor disc vortex interference and Loss of translational lift,which can resultin the loss of aircraft control unless suitabble corrective action is taken by the pilot. |
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| Keywords: | Unanticipated right yaw Weathercock stability Tail rotor vor-tex ring state Translational lift Yaw rate |
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