"john smith" wrote in message
...
In article TKdug.77158$ZW3.34119@dukeread04,
"Jim Macklin" wrote:

If the engine is turning, it has oil pressure.

Yes, but is there not a minimum RPM below which the governor has no
effect?

There is indeed. In my experience, cycling the prop on a windmilling engine
has no effect. I'm talking about a constant speed prop on a single engine
aircraft, in this case a Mooney 201. Windmill RPM was about 800, and no
amount of pulling on the prop control would change that RPM. Obviously, if
the RPM doesn't change, the prop pitch didn't change, and the glide is not
affected.

Jim and I have 'round on this one before, but I stand by my observations.

Al G