The tail rotor on a helicopter is located, as its name states, on the tail of the helicopter. Its’ purpose is to prevent the helicopter from spinning the opposite way of the main rotor blades. Imagine having to ride in a helicopter that is continuously spinning in circles, it would not be an as efficient form of transportation. Passengers would be sick or dizzy, and parts of the aircraft could possibly fall off with only one place to go, the ground. This would result in civilian injuries/deaths, along with a lot of property damage. The tail rotor blades counteract the main rotor blades allowing the helicopter to fly straight and be easily controlled by the pilot, especially during maneuvers. It spins horizontally to compensate for the torque created from the main rotor. The placement of the tail rotor placed away from the center of gravity, on the tail, allows for the most effective results.