Adverse Yaw...
Hi, having had several instructors for both power aircraft and gliders, they all said that you should use some pro-rudder whilst in the turn, to prevent 'Adverse Yaw'.
However I was having a test flight in a large wing-span glider with an instructor, and we were flying in turbulent air, which was forcing each wing up in turn... I was correcting as best I could with the stick, but happened to mention that the Adverse Yaw was noticeable in this glider.
My Instructor said that I was not using enough (or any) rudder with the stick, and I explained that I was not turning but trying to maintain a S+L course.
So what he then said made some real sense.. He said that you need to apply the rudder as you move the stick, as it corrects for the difference in drag of the ailerons... Nothing to do with actually being in a turn, as the other 6 or 7 instructors had mentioned.
It's was just a slightly different way of looking at things, but much better to understand.