Many helicopters use tail rotors to counteract this force, while others feature multiple counter-rotating rotors which cancel out the torque forces, such as the 60-year-old CH-47 Chinook.

Ever wondered why helicopters have two control sticks while airplanes usually have one? Learn how helicopter controls work ...

Since helicopters first began to get off the ground in the 1930s, the industry has called their primary lifting device a rotor. In fact, helicopters were preceded by autogyros, which used ...