How to make an RV fly really bad!!!!

[MIKE JG]

The reason that has been the first order recommendation from Van's for decades is that the shapes are less than ideal on a major majority of RV's. Probably 3 out of every 4 that I have checked over the years (this is something I even check on Certification Inspections) has incorrect trailing edge shapes on control surfaces. Some to a degree that I would say is severe and probably unsafe in some situations for the average pilot. Because of that fact, it should always be the first thing checked for a roll trim issue.

Only once the trailing edges are confirmed to be shaped properly, should other changes such as changing the aileron elevation relative to the wing be checked and adjustments considered.

Also from (a lot of) experience

Has anyone ever made a template shape for their trailing edges to check this?? I'm pretty sure my elevators will need some additional love before the first flight and I've tried the Van's recommended method of tapping the trailing edge with a block and mallet to fix an overqueezed surface but a template to use to check along the entire trailing edge would be very helpful!

 

[rvbuilder2002]

Has anyone ever made a template shape for their trailing edges to check this?? I'm pretty sure my elevators will need some additional love before the first flight and I've tried the Van's recommended method of tapping the trailing edge with a block and mallet to fix an overqueezed surface but a template to use to check along the entire trailing edge would be very helpful!

Have you looked at chapter 5.7 in Section 5 of the construction manual???

The only template needed is a straight edge, and used as described and shown in photos in Section 5.

 

[gasman]

I seem to remember it written somewhere to use a 1/8” dowel on the inside of the trailing edge when bending them. But can’t seem to find it now.
That’s certainly what I did. View attachment 83955

The 1/8" dowel will allow the bend to spring back and end up making a 3/32" radius.

 

[MIKE JG]

Have you looked at chapter 5.7 in Section 5 of the construction manual???

The only template needed is a straight edge, and used as described and shown in photos in Section 5.

Yes of course, and I've spent plenty of time with the straight edge doing just that. Just wondering if there was something that encompassed both sides of a surface at the same time. No worries.