Unknown torque on a plane

[Warzouz]

I recently installed RCS Build Aid and discover a phantom torque on my plane. I understand a bit more why my plane was slightly turning south

Total torque :2kN

If I remove the fins: torque = 0.56kN

If I remove whole wings assembly: Torque = 0

Wings are attached with symmetry, so I shouldn't get any torque.

On runway, KER says I've a 0.1° offset angle.

Do you know what I did wrong ?

Edited August 26, 2015 by Warzouz

[TheGamingNoobster]

Well, 0.1 offset angle eh? 2kN of torque? Sounds about right. Each of those engines are a few meters away from the COM and produce hundreds of kN in total. It is normal. Remember, with torque M(moment) = FD (Force x Distance).

[Warzouz]

Thx.

I got it wrong. the red arrow wasn't a displacement force, but the the axis of the torque. It's logical since the airbrakes and fins are on the back of the plane. It's not a problem of lateral dysymmerty but vertical one, which is logical on a plane...

Dumb question...