When the helicopter began getting away from the pilot he pulled back on the cyclic which controls thepitchofthe rotor blades only to find the aircraft unresponsive.
当直升机开始与飞行员脱离的时候,他向后扳用来控制转翼叶片变矩的操纵杆,但直升机毫无反应。
2
The theory of stability of differential equations is used to analyse the 'effect of reversal slope ofpitch moment to the stability ofaircraft.
本文用微分方程定性理论来分析俯仰力矩曲线随迎角变化的“勺形”对飞机飞行稳定性的影响。
3
The handing qualities ofaircraft for pitch axis are assessed using equivalent system criteria based on the flying qualities specifications(MIL STD 1797A).