by patrick b

How helicopters work?

The main rotors move a helicopter up, down, forward and back. A helicopter can fly stright up into the air. It only needs a small space to take off from the ground.

sikorsky skycrane

This is an unusual giant helicopter it dosent carry heavy loads inside its body. Instead it flies along with a large container underneath.

The Eh101

The Eh101 was built by companies in britain