Analyze the influence of main parameters including exp. area ratio, blade number, collective pitch angle, section shape, cyclicpitch angle and rake angle on the performance of VVP.
When the helicopter began getting away from the pilot he pulled back on the cyclic which controls the pitch of the 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。
3
The controls included collective, cyclic and differential pitch, the latter being obtained by rotating the stick handle which made the helicopter turn on its vertical axis.