It really depends on the plane you are flying and your skill level. The .40 size glow planes will handle it just fine, but the electrics on the other hand hate wind;any wind. My GWS slow stick gives me problems at anything over 5MPH. But if you plan on staying in the hobby eventually you will just have to bite the bullet and learn to fly in the wind. If you wait around for that perfect day you will be sitting at home a long time.