estarting the C152
During my Flying Instructor course this Summer, we went through the prop stopped routine. Climb to 5,000', fly 1KT above teh stall and pull the mixture to ICO. hold the attitude without stalling 'til the prop stops (quite difficult). Once stopped, nose over to the yellow arc on the ASI (almost vertical down. The prop still won't start windmilling. What's required is exactly what Stik did, only in this case at 90deg, by pushing & pulling on the elevator. This induces different angles of attack over the prop until you hit the sweet spot and it starts going round again. The resultant recovery is more extreme than from the spin series you need to do for the FI rating. This may consume around 3,000', recovery at around 2,000'. Fortunately, you only have to do it once.
What this graphically demonstrates to me and is borne out by Stik's story above, is that re-starting a stopped prop is on the edge of possibility and is only achived by extreme manoeuvring. I'd definitely NOT like to try it in a PA28, I've heard stories about their wings being pulled off from extreme dive recoveries.
Cheers,
TheOddOne