Re: flat spin in C150s/C152s: Have never experienced one myself but I have heard of a couple of incidents where a 150/2 spin flattened. In one case the cause was that the CofG was outside the allowable range due to 30+ years of paint on the empennage!. .. .I believe also that the use of in-spin aileron during a spin in a C150/C152 (or significant power in a left spin) will also cause it to flatten.. .. .Never tried it myself though as I imagine it would be nice to start at 8-10k just in case, and have never had the interest to climb a 150 that high <img border="0" title="" alt="[Wink]" src="wink.gif" />