I've flown my flat foamie in winds where I had to use 3/4 throttle to keep it in one place, and this plane will climb unlimited at 1/2 throttle. I'm not sure the wind for that plane, but they where about 15 mph. We have a 15 kt. wind sock that was almost straight out.

I regularly instruct in 15 mph winds, and when a student has enough experience I'll fly them in winds up to 20 mph. Above 20 mph it starts to not be as much fun to fly. My Kaos doesn't like winds over 25 mph (thick airfoil), bet we'll pylon race Sky Raider's and Quickies up to 30 mph.

I know a guy in Auburn, AL who complains he can't get any instruction in winds. He says when the wind gets over 10 mph everybody packs up and goes home - to windy.

It all comes down to the plane and pilots experience/comfort level. If you want to fly in Kansas you learn to fly in 20 mph or you don't fly very often.

Hogflyer