"nrp" wrote in message
ups.com...
So if a warm prop governor doesn't work, what can happen? It will
either control or it won't.

Or the failure could be causing oil to be pumped overboard. The only
initial sign from within the cockpit could be the lack of governing, but
you'd still want to get the plane back to the shop ASAP, *without* flying it
first.

[...] Why do multiple still-warm runnups unless you are just
trying to make the neighbors mad? or blow crap at everyone else's
airplane at the pad? or maybe just to sweep the pad?

At every airport I've ever been, there is a suitable run-up area away from
"everyone else's airplane" and from "the pad" (whatever THAT is). Neighbors
have no idea whether it's your first run-up or your tenth, and it'd be a
pretty odd situation indeed for your individual operation to make the
difference between a neighbor being mad or not. Generally, any neighbor who
can actually hear a run-up is either very pro-aviation, or they've already
been trying to close the airport for years.

Pete