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.
这些控件包括集体，循环和差别音高，后者是通过旋转棒处理这使得在其垂直轴直升机又获得。
2
The thesis makes a main study of submarines' depth and pitch control in vertical plane and researches on submarines' equilibria control performance.
本文将主要研究潜艇垂直面的深度和纵倾的控制，从而进一步研究潜艇的均衡控制性能。
3
In the end of the paper, the controllers of pitch pointing and vertical translation modes are designed for an airplane. And the simulation results of two modes are excellent.