Also aileron into the wind is a good way to prevent a wind gust lifting that wing and rolling you over. The up aileron helps keep the wing down on the side that the wind is blowing from. That is also the primary reason why it is used in full scale flying. The opposite way as Speed does can get a trainee in trouble with the down aileron on the side the wind is blowing. A good gust especially close to the ground and over it goes. It is easier for the wind to roll a plane over with the help of a down aileron than with it up. In the show Flying Wild Alaska there are times when landings were made with full aileron deflection with gusts in excess of 40 knots.