jsmith wrote:
It's not the spinning that may break the aircraft, it is the
recovery.
Let it go too long and build up too much airspeed and pull too hard
and,
yes, something may break.


This would be a new one on me. I spin my Cherokee regularly and have
never run across this problem. Are you saying that your airspeed is
building up during the spin? If that's the case, I'd venture to guess
that you are in a spiral dive rather than a spin.

In most of the planes I've spun, airspeed does not increase with the
duration of the spinning. I end up with about the same speed at the
end of one turn or four turns.

Maybe I'm misinterpreting "let it go too long".

John Galban=====N4BQ (PA28-180)