The Kamov Ka-50 “Werewolf” revolutionized attack helicopters with its tail-rotor-free design and pilot safety innovations.

If helicopters didn't have tail rotors, they would spin in circles because they need a force pushing in the opposite direction as the main rotor.

By now, you're probably aware of just how versatile and equally adaptable helicopters are. These aircraft are among the best ...

Video showed the helicopter plunging into the 5-foot-deep water near Jersey City, New Jersey, without its tail rotor or main rotor blade. The NTSB is investigating the cause of the crash.

Helicopters are set apart from other aircraft in a very big way: the rotors. There's the main rotor and the tail rotor. Ever wonder what the tail rotor does?