Yes sorry I meant feet !
Thanks for the info guys, I was asking because I started another thread on this forum, re tip stalling, and I was recomended to get up wind and high up, and practice doing it on purpose to learn how to recover.
Therefore I wanted to know how high I could safely go, to give me the best chance of recovery before the hard stuff jumped up and bit my model !
So this weekend it's "go out and practice spin recovery" time - wish me luck