摘要
直升机在一定高度和速度范围内,当无动力或临界发动机失效后,即使旋翼自转或剩余发动机工作,飞行员也来不及操纵和调整直升机飞行状态,直升机会以较大的下降率触地,危及飞行安全。为避免出现上述情况,应确定直升机"回避区"(高度—速度曲线)。本文介绍了"回避区"飞行试验技术现状和回避区飞行试验技术的重要性,提出了进行回避区飞行试验的程序和内容。
There is a limiting height-speed envelope for helicopter under which a safe landing cannot be made under the applicable power failure condition.The international technology actuality of flight test in height-speed envelope and the essentiality of the technology are introduced in this paper.The author describes how to develop the flight test.
出处
《直升机技术》
2008年第2期6-10,共5页
Helicopter Technique
关键词
直升机
回避区
飞行试验技术
helicopter
height-speed envelope
flight test
