QUOTE(bandjoey @ Oct 24 2017, 03:30 PM)
Along the hijack airplane lines...the local fbo had a Yankee clipper rental. Oh with those short wings many people got a checkout and it wasn't but a few hours before they nearly scared themselves to death. Ask me how I know.
It wasn't so much the short wings. The original Jim Bede-designed American Aviation AA-1 Yankee had a mostly-asymmetrical airfoil that gave it a lot of speed (they're great platforms for a speedy O-320 conversion) but were not very forgiving in low speeds and high angle of attack. You could get one of those too slow in the pattern and find yourself with a hellacious sink rate, or worse, stalled and upside down in the pattern, with only 115 hp to help get you out of it. They also developed a reputation for getting into an unrecoverable flat spin. I've got some hours in one of those and they really do require a deft touch and a lot of empathy to fly right.
The subsequent AA-1A/B/C variants (Trainer, T-Cat, Lynx, etc) used a flat-bottom NACA airfoil that was much more tolerant and far more gradual before giving up. It made for better trainers, and although slower, were good airplanes. In fact, that same airfoil was carried forward on the -5 models (Traveler, Cheetah, Tiger) which were nothing more than one extra wing section added to the end of the -1 wing.
NASA later used the very first production AA-1 (S/N AA10001) to do a lot of general aviation spin tests, finding ways to engineer into the airplanes to make them more spin-tolerant. As part of the testing they beefed up rear structure and added a tail-mounted spin chute. That very airplane is hanging from the ceiling of the Virginia Air & Space Center in Hampton VA...