Asymmetric Ailerons

[jackn]

My right aileron seems to lift slightly in flight. The left one stays flush. I can’t reproduce this on the ground. I thought I might have a worn rod-end, but all pushrods and bearings seem tight. The interesting thing is that the plane flys hands/feet off just fine. 

Just checking to see if anyone has experienced this. 

[Piloto]

If you are using the flaps as reference it could be that the right flap is lower than the left flap. If the plane does not roll with hands and A/P off leave it alone. 

José

[jackn]

4 minutes ago, Piloto said:

If you are using the flaps as reference it could be that the right flap is lower than the left flap. If the plane does not roll with hands and A/P off leave it alone. 

José

I thought that might be the case, but both flaps are symmetrical and it doesn’t show up on the ground. I agree about not screwing with it, but was just curious. 

[Piloto]

On modern airliners aileron droop can be modified in flight to increase lift or optimize fuel efficiency. The drooping is done by the FCC (Flight Control Computer) without pilot intervention.

José

[anthonydesmet]

6 hours ago, jackn said:

My right aileron seems to lift slightly in flight. The left one stays flush. I can’t reproduce this on the ground. I thought I might have a worn rod-end, but all pushrods and bearings seem tight. The interesting thing is that the plane flys hands/feet off just fine. 

Just checking to see if anyone has experienced this. 

@jackn agree with Piloto.  If it makes you feel better I sometimes see the same thing but never consistently looks the same do to headwind, crosswind, crab to maintain course, auto pilot on/off, etc. 

[jetdriven]

Reference them to the wingtip as well. Flaps may not be symmetrical but as Others have said, don’t fool with them unless the ailerons are not symmetrical to the wingtip. Then, follow the SMM but you’d likely be looking at adjusting flaps then also bending Aileron trailing edges to compensate. 

[jackn]

On 5/22/2018 at 10:59 PM, jetdriven said:

Reference them to the wingtip as well. Flaps may not be symmetrical but as Others have said, don’t fool with them unless the ailerons are not symmetrical to the wingtip. Then, follow the SMM but you’d likely be looking at adjusting flaps then also bending Aileron trailing edges to compensate. 

The ailerons are indeed referenced to the wingtips. 

[Raptor05121]

Mine are the same, but I have a pronounced right-turning tendency when I let off the yoke.

[MB65E]

Your right IBD static wick might be creating some drag.

-Matt