The mission title was spin awareness training. It was just a mission of spinning and getting out of spins. At first very early, later on fully developed spins after several turns, inverted spins and so on. At the end one should be able to get out of a spin at any time on a predefined heading. A few years earlier it was a full aerobatic training thereafter, but that was cut for cost reasons.
Oh, and it was and is a civilian airline program, although the training aircraft for spin training are shared with a military initial selection program. Come to think of it, the military used the bonanzas as well, don't know if they still do.