Adding a rotorblade (it had five on the mainrotor and four on the tail) and using a modified exhaust system were among them.
增加一个桨叶(主桨有5个叶片,尾桨有4个),并使用了改进的排气系统。
2
Mainrotor is the key part of helicopter modeling, the associated modeling methods of aerofoil aerodynamic loads, rotor inflow dynamics and blade flap motion are discussed in detail.