HI

    In the area of pulling the prop control to the full aft position
(low RPM), it depends on the propeller on your airplane. My propeller
will go full course (low RPM) on loss of oil pressure.  It is a
Hartzell. There are variations of Hartzell's.

   Check with your prop shop.  If your prop is a 'air' prop meaning it
has an air dome, loss of oil pressure is a low rpm situation.  If your
prop has weights it might be a low rpm situation.  If your prop has a
spring dome a lot do, again it could be a low RPM situation.

    Check with your prop shop.

Jack Webb

L 360, L IV
ATP, Ohio