On Mon, 11 May 2009 12:59:17 -0700 (PDT), Cats
wrote:

And if you can get an ASK-21 to spin I suggest you check the cockpit
weights - I don't know anyone who has without the use of tail ballast.

Raises his hand and yells "Here"

The 21 won't stay in the spin (will enter a spiral dive after 1.5
turns), but even enters a spin with pretty forward CG (up to 30%).

How to reproduce this:
- Start turn in a 15 degrees bank at 130 kp/h
- raise nose 10 degrees over the horizon and keep this attitude. Speed
is going to bleed off
- at 80-82 kph IAS enter full rudder into the direction of the turn
and start to pull back the stick fully to raise pitch attitude slowly
- once the 21 starts to rotate, apply full adverse aileron
- Keep full rudder, adverse aileron and full elevator

Voila - the 21 starts to spin immediately.
You'll find your self in a genuine spin and can practice recovery
techniques. After 1.5 turns it will recover itself into a very steep
spiral dive. Neutralizing the controls will end the spin immediately.





Bye
Andreas