On Jul 20, 6:24*am, Terence Wilson wrote:
In the course of trying to understand how a constant speed prop works
I came across the following passage in one of the Jeppesen books:

"If the throttle is advanced without decreasing the pitch of the prop
blades to increase ___ rpm, the manifold pressure increases as the
prop mechanism attempts to keep ___ rpm constant by increasing the
blade angle. The combination of high manifold pressure and low ___ rpm
can cause damage due to high internal manifold pressures."

Go to you tube. There are a couple of videos out there taken from "How
its made" that shows a prop being made. They don't show the gov but
they do a great job of showing you the inside of the hub.

-Robert