Question: How do helicopters steer?

Rob Temperton answered on 24 Jun 2015:

Dont know! But I can take a guess… Presumably something to do with tilting the blades ever-so slightly relative to the body of the helicopter. I suspect this is what allows forwards and backwards control (as well as up and down). The blades at the back presumably allow control of left/right by pushing the back of the helicopter around. These black blades will always have to be spinning to counter the spinning of the main big blades (otherwise the helicopter will probably just spin round and round in circles)

Rob