I don't know what a VP/CP prop is.

Variable pitch/controlable pitch.
I use the terms interchangeably, but as you'll see, others use them slightly
differently.


When our engine is running the shaft is spinning because we have a
Borg-Warner transmission. Our shaft spins whenever the engine is on
regardless whether it is neutral or not. The prop feathers when the
engine is turned off and the shaft stops spinning. The stopping of
the shaft spinning feathers the prop if I understand it correctly.
You really wouldn't want the prop feathered if the engine was on - if
it feathered when you went through neutral when docking or something
it would be very awkward.

Interesting, thanks for the info.
I would wonder if once you were underway and using your prop, even going from
ahead to astern (unless you had a shaft brake) that the shaft would generally
continue to rotate on it's own, keeping the prop "unfeathered", though I can
see where the manufacturer might want to guarantee it would stay that way (just
clarifying in my own mind G).

Shen