Hi thanks for the positive respons!

To determine the pivot point on the slot is rather difficult! Ive cut out a copy of the flap, slot and ving in a cardbord and spend a few hours finding the point. I dont see any other way to do it, then the hard way.

Here is some pictures og of the PC6.
Its build i a rather unusual way. Its honeycom made of balsa with glass/epoxy on both sides.
Its a strong way to build and very lite.

The fugelage weighs 7.3 Lbs.