servo

Hi ! good to see you again!!this time I want to tell you about servo !servo ,it is the control chain for the whole helicopter system, just imagine the controller is the brain then servo is the part which perform your operation.
It is good to know the important part of helicopter before you start,a good servo consider torque,speed,dimensions,weight,gears.
You need to have enough strength to push or pull the part when helicopter fly ,it must react fast in order to deal with any situation-time is the money(less crush save more money),the size of it is also important, to fit in to your helicopter you need to control its size as well as its weight.it is all about having a start on what is servo ,how to choose it ,in next post I will go in to detail to introduce to you how to start to fly !be patient!

http://www.rchelicopter.com/category/rc-helicopter-servos/