Hey,

Right now my Funtana 40 rocks wing pretty bad during harrier. I am thinking about installing a end plate on each wing tip, like the good old Hots. From what I gathered, the wing tip plate help reduce the wing tip trailing vortices by reducing the higher pressure air below the wing from migrating to the lower pressure air above the wing. Would it help reduce wing rock? Chip Hyde points out that wing rock is caused by wing tip stalling and regaing lift incessantly.

It's said above that it decreases stall speed. Care to explain?

I think before committing my plane to this config, I will try to attach the plates using screws instead of glue. Just how big should I make this endplate? 1/2" all the way around?