A helicopter tail rotor is fitted to
- counteract main rotor torque and provide normal directional control.
- counteract engine torque and provide a rapid turn facility.
- permit directional control.
Explanation
The tail rotor counteracts the main-rotor torque reaction to stop the fuselage spinning, and by varying its thrust it also provides normal yaw/directional control. This combined statement is more complete than options citing only directional control or only torque, since the tail rotor performs both functions.
harbhla asking:
Please write your comment here.may be it is to counter main rotor torque and not engine torque ans ist seems more appropriate
Community Comments (2)
E
edya371 Posts: 2 26.06.2012 / 18:14
Rotor torque is dependant on engine torque so in this context it is the same. But "provide normal directional control" is more appropriate than "rapid turn facility"
J
Jordi Posts: 198 01.09.2021 / 11:31
i agree with edya but to be more correct between the 2 answers counteract main rotor torque is more correct and to the point than engine torque.So even if you have a question without the next sentence,you should pick the counteract main rotor one.
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