Hi All.
I'm seeing a great deal of misinformation and misunderstanding on this thread. The definitive work on all this is "Aerodynamics for Naval Aviators", by Harry Hurt, Phd. This is available from the GPO, of possibly from your local FBO. Harry (now deceased) was a professor at the USC Institute of Safety and Systems Management. He was teaching a course on accident investigation, and doing the aerodynamics portion from notes that he pulled out of his pocket. A Navy Captain talked to him after class and told him that if he would put the aerodynamics into book form that he would make sure that it got published.
This is a work that I think that we all need to read and understand. The propulsion chapters are a little bit dated, but the aerodynamics of a spin or a stall do not change.
Joe