Flap Cove VGs

[BDA]

I was looking for my pictures of my tests on these and realized that I put all of it in my other thread - SuperStol XL Alaskan - Page 4.

If you have a SuperStol, you should add VGs in the Flap cove. They increase flap effectiveness, by a lot. Better over the nose visibility, better lift on slow final, better tail authority. Because the VGs are making the air stick to the top of the flap, the air is following the top surface and creating lift instead of just blowing through the slot.

There is not enough room in there for VGs on the flap itself, so put them on the underside of the wing, just inside of the cove, OUT OF the airflow in cruise flight.

Go to other thread for pictures