At 13:54 10 September 2018, wrote:
Un-spinable? You might want to watch this and look up the USAF report
conducted on the spin characteristics of the ASK-21.

https://www.youtube.com/watch?v=yXH6XDxQdPY

I know they will spin,but the amount of abuse it takes is way beyond "a bit
of in-attention"
The latest K21B is going to be made so it can be spun.

I have had some pupils do terrible things and as long as they don't "deep
stall" it just gets on with it.

By deep stall I mean ,pull up then push over so you are left with the
normal attitude but only 20 kt,if you put rudder or aileron in then you are
going to spin.