The small rotor on the tail is to counter-act the torque of the big rotor on top.
So it is used for steering and to keep the helicopter stable.
The small rotor on the tail, called the tail rotor, counteracts the torque produced by the main rotor of the helicopter. Without the tail rotor, the helicopter would spin uncontrollably in the opposite direction of the main rotor. The tail rotor helps maintain the helicopter's balance and heading.
Some helicopters feature a second rotor underneath the first rotor that counters the force applied to the body of the helicopter by applying thrust in the opposite direction of the main rotor. This stops the helicopter from spinning around. Others, instead of a second rotor underneath the first rotor have a back rotor that essentially does the same thing, which is provide a equal force to the first rotor preventing the helicopter from spinning =0
The helicopter was made in China.
Rotor blades are on top of a helicopter.
it stabilises and steers the helicopter.
That is a twin rotor helicopter
Main rotor and tail rotor. The main rotor is on top of the helicopter consisting of two or more blades, and the tail rotor is at the back of the helicopter, which also consists of two or more blades.
The main rotor on a helicopter creates lift, which allows the helicopter to become airborne and maintain its altitude during flight.
It's main rotor, tail rotor makes the helicopter to move which is powered by it's engine. These are the major parts of a helicopter
The main blade on a helicopter is the 'rotor'
A helicopter has rotor blades and an airplane does not.
Helicopters do not have any wings. Airplanes have wings Helicopter has rotors. A helicopter has at least two sets of rotors. One rotor creates lift ( Main Rotor on the top ) & the other prevents the helicopter from spinning in circles( Tail Rotor).