RE: HOW-To..3D maneuvers
Another entry for the KE spin, but it works better for the larger planes with more tail areas.
Go vertical into a hammerhead. Carry just a touch of throttle so you won't make a full stop at the top. Just before the stall at the top go to max high rate rudder either direction. As the plane rotates to the horizontal on the rudder input, reverse the rudder to the top, add full up or down high rate elevator, depending on the desired direction of rotation. Hold the top rudder and max elevator, maintain neutral ailerons and throw power at it to get the rotation going. Use ailerons to counter roll coupling.
Bubba, just found this thread for the first time, what a great idea!!