C 172 always tiens on left

[bravodeltafr]

Hello
In flight my c172 runs all the time on the left side as if the aileron neutral was not adjusted properly. So I always have to put a little stick to the right even when the engine power is moderate. How to solve this problem ?
Tank you!

[Jacques]

Hi Bravodeltafr,

I think this would be considered normal as torque, gyroscopic precession and P Factor all work to turn the aircraft left....I think I may be missing another factor in left turning tendency as well. If the left turning is extreme then something else may be at issue.

[bravodeltafr]

I agree with you about these factors.
But I find that all of these factors are a little too high compared to the real aircraft, which usually does not turn left in cruise at moderate engine power with 2 people.
I don’t have the experience of the C172 with only one pilot as I do. Is it possible to test with a passenger in the right seat, to see if this phenomenon persists?
Thank you for your prompt response,
Sincerly

[Jacques]

Yes, just add a passenger in the payload manager, shift+4 (I think)