Roll off with flaps down

[RobertGary1]

My plane has always had a strong roll left with the flaps out. From what I can tell there is no way to independently adjust the flags. Unless I missed something. Don't see much in the service manual either.

 

-Robert

[shawnd]

A Mooney service center should be able to re-rig the flaps for you.  @M20Doc can clarify?  A good article on the matter: https://www.knr-inc.com/shoptalk-articles/25-shoptalk/75-201407-control-rigging

[RobertGary1]

3 minutes ago, shawnd said:

A Mooney service center should be able to re-rig the flaps for you.  @M20Doc can clarify?  A good article on the matter: https://www.knr-inc.com/shoptalk-articles/25-shoptalk/75-201407-control-rigging

I assume its based on finger rolling the trailing edge?

-Robert

[N201MKTurbo]

There are links between the flap bell crank shaft and the individual flaps. You can use these to adjust the down position. You just need to make sure they still are tight against the stops while up. I would level the plane laterally and then use an angle gauge to compare the two flaps. I would also take a close look at the flap shaft and bearing mounts to make sure nothing is cracked and coming apart.

[Sabremech]

Just installed the flap shaft back in my C after cleaning and painting it. You can see the 2 link rods in this photo that can be adjusted. 
David

[Skates97]

2 hours ago, N201MKTurbo said:

There are links between the flap bell crank shaft and the individual flaps. You can use these to adjust the down position. You just need to make sure they still are tight against the stops while up. I would level the plane laterally and then use an angle gauge to compare the two flaps. I would also take a close look at the flap shaft and bearing mounts to make sure nothing is cracked and coming apart.

I didn't have a strong roll but there was a slight one with flaps out. I never really paid much attention to it, just corrected for it. Then, I noticed that when retracting the flaps on the ground the left one took about two seconds longer than the right to retract. In another thread it was mentioned to check and adjust them using the links Rich mentions and in David's pic. When fully down there was about a 2° difference between them. I can't remember but it was about 1-1 1/2 turns on the left bell crank to get them even. When retracting on the ground they finish at the same time, no more slight roll to the left in flight, and as an added bonus my landings are on center-line more often... With the flaps not evenly deployed it was causing drift to the left just before touchdown (when I apparently was not adding increased aileron correction in the flare).

[carusoam]

Putting the patient on her back for surgery would be interesting....

Some boat hulls get constructed upside down. And use a giant rotisserie to flip them....

Best regards,

-a-