Originally Posted by
Torben Parsberg
Hemm , have nerver Think about The. Stab position up ore Down from. O Line.. Will have so Much effect ón The hole plane .. Hemm om only a roooookie.. Lol.. My bibe goes Nice ón NE. But have a llitel Roll cupling ón NE i Think wings move 15* ón 150m . Have all thought too little v shape in wing. Have do i find The Rights spot fore The stab. Maby i Will try a new place ón my next kitt,, .
Hi Torben,
I don't think that changing the stab position affected the roll coupling, but it allowed me to use lower wing incidence.
I tried +0.7 deg. incidence on the wing before, but with the stab in the initial position the plane pulled to the canopy on the vertical uplines, so i had to use more wing incidence (+1.1 deg.) to counter this tendency.
Moving the stab lower eliminated the pull to canopy on the uplines, so i was able to follow Bryan's advice and reduce the wing incidence to +0.7 deg. I think it's the change in wing incidence that fixed the roll coupling, moving the stab probably had very little to do with it and only affected the vertical uplines.