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Most helicopters have a tail rotor for stability while others (often Russian military helicopters) have two main rotors. In both cases the two rotors spin in opposite directions, in order to cancel out any torque effect of a single rotor.

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Why is it necessary to have the tail rotor on the helicopter that spins perpendicular to the spin of the main rotor?

"For every action there is an opposite and equal reaction." For the helicopter to make the blade move in one direction, the blade will try to make the helicopter move in the opposite direction. Since the blade tries to make the helicopter spin, something is needed to keep the helicopter from spinning. So the manufacturer puts a tail rotor on the helicopter.


What direction does a helicopter's rotors spin?

Depending on the make of the helicopter, some will rotate clockwise and others will rotate counter-clockwise. However, the main rotor and tail rotor will spin opposite of each other. If the tail rotor spins clockwise, the main rotor will spin counter-clockwise. The main rotor also spins for lift, the tail rotor for control.


Why does the rotors spin on an helicopter?

The rotor blades on a helicopter work the same way as wings on a fixed wing aircraft. The air passing faster over the top of the airfoil generates lift. Helicopter rotors spin so that the lift is generated without having to have forward airspeed like a fixed wing aircraft.


How does a helicopter get its lifting force?

A helicopter gets its lifting force from the rotation of its main rotor blades. As the rotor blades spin, they create a pressure difference between the top and bottom surfaces, generating lift that enables the helicopter to become airborne. The angle of the rotor blades can be adjusted to control the amount of lift produced.


How do the blades on a helicopter spin?

Helicopter blades spin due to the engine providing power to the rotor assembly, which causes the blades to create lift and generate thrust. The rotation of the blades also allows the helicopter to maneuver and change direction in flight.

Related Questions

Why is it necessary to have the tail rotor on the helicopter that spins perpendicular to the spin of the main rotor?

"For every action there is an opposite and equal reaction." For the helicopter to make the blade move in one direction, the blade will try to make the helicopter move in the opposite direction. Since the blade tries to make the helicopter spin, something is needed to keep the helicopter from spinning. So the manufacturer puts a tail rotor on the helicopter.


What direction does a helicopter's rotors spin?

Depending on the make of the helicopter, some will rotate clockwise and others will rotate counter-clockwise. However, the main rotor and tail rotor will spin opposite of each other. If the tail rotor spins clockwise, the main rotor will spin counter-clockwise. The main rotor also spins for lift, the tail rotor for control.


Why does the rotors spin on an helicopter?

The rotor blades on a helicopter work the same way as wings on a fixed wing aircraft. The air passing faster over the top of the airfoil generates lift. Helicopter rotors spin so that the lift is generated without having to have forward airspeed like a fixed wing aircraft.


What did grok do with his new helicopter?

he took it out for a spin


What makes a helicopter tailspin?

What do you mean by tail spin? How the blades turn? How the back of the helicopter turns?


How does helicopter's work?

the engine inside causes the propeler to spin


How does a helicopter turn?

By increasing or decreasing the speed of the tail rotors. This unbalances the torques acting on the helicopter and causes it to spin.


How do you control a helicopter using only the keyboard in Roblox?

As far as I know you cannot. You must spin your camera to fly, and you must use your mouse to do this. it may be possible to fly using the left and right arrows to spin your camera, but it may not work.


What propels a helicopter?

the engines make the propeller spin and will make it fly


How do you control Bladez 3D Remote Control Helicopter?

Hit the throttle and the helicopter will go up.


What do pedals in a helicopter do?

The anti-torque pedals in a helicopter are used to keep the heli from rotating from the spin of the rotors (it controls the tail rotor)


How do you launch a Radio Control Helicopter?

Slowly draw the lever on the controller on the left upwards (or the right, check which one doesnt move all direction) to take off.