- #1
PaulHP
- 6
- 0
How can you calculate the amount of thrust needed by the tail rotor of a helicopter to counter the torque of the main rotor?
Cyrus said:T = 63025*hp/rpm
this "0.05 hp X 5252= 262.6/300 rpm = 0.88 ft-lb" Makes no sense to me.
I get 3lbs of thrust.
PaulHP said:T = 63025*hp/rpm is to find torque in in-lbs, and T-5252*hp/rpm is to find it in ft-lbs..
A helicopter tail rotor is a rotary wing located at the tail of a helicopter that is responsible for generating thrust to counteract the torque produced by the main rotor and provide directional control.
Tail rotor thrust is necessary to counteract the torque produced by the main rotor, which causes the helicopter body to rotate in the opposite direction. Without this counteracting force, the helicopter would spin uncontrollably.
The amount of tail rotor thrust required is determined by the torque produced by the main rotor, which depends on factors such as the helicopter's weight, power, and airspeed. The tail rotor must provide enough thrust to counteract this torque and provide directional control.
The tail rotor thrust requirement is affected by various factors such as the weight and distribution of the helicopter, the power and airspeed of the main rotor, the altitude and air density, and the direction and intensity of the wind.
Yes, the tail rotor thrust requirement can change during flight due to changes in the factors that affect it. For example, as the helicopter's weight decreases due to fuel consumption, the tail rotor thrust requirement will also decrease. Pilots must continuously monitor and adjust the tail rotor thrust to maintain control and stability during flight.