They are also encouraged to do a well banked turn (say 30 degrees) since there is evidence that it is more difficult to spin from such a turn as compared to a flat turn if speed is lost.
I'm intrigued - my gliding instructors have taught me to turn final at 30 deg but my power instructor wasn't keen on anything above 20 deg. Is there a difference between gliders and power here, or just different traditions? Anybody any idea? Any books I can read that explain a bit more?