wrote:

I was just wondering if best glidespeed in say a cessna 152 will be fast
enough to
get the engine started if you encountered a battery failure or starter
failure.

Stopping the prop from windmilling generally requires slowing to just above
stall speed. That's well below best glide speed. If the prop is still
windmilling, best glide will be fast enough to let you restart.

Once the prop stops, though, it takes a lot to get it going. If you slowed the
plane enough to stop the prop, you will have to accelerate to well above best
glide speed to get the prop turning again.

George Patterson
Drink is the curse of the land. It makes you quarrel with your neighbor.
It makes you shoot at your landlord. And it makes you miss him.