New prop, one less AD, and some great customer service from Hartzell

People are claiming 3-5 knots extra on the new prop but the
interesting thing about the new prop is that it (in theory) has an
unlimited life span. During overhaul the blades do not get smaller as
metal blades do so you can overhaul it as many times as necessary.

What's involved with overhauling a composite prop?
--
Jay Honeck
Iowa City, IA
Pathfinder N56993
www.AlexisParkInn.com
"Your Aviation Destination"

My understanding as explained by a friend/A&P/IA/Part137 guy who is working
with MT to apply one of their models to PT6 driven AirTractors is that the
interior hub and bearing work is fairly normal however after the blades are
ground they are built back up and finished to original factory specs.
Jim

"Jay Honeck" wrote in message
oups.com...
People are claiming 3-5 knots extra on the new prop but the
interesting thing about the new prop is that it (in theory) has an
unlimited life span. During overhaul the blades do not get smaller as
metal blades do so you can overhaul it as many times as necessary.

What's involved with overhauling a composite prop?
--
Jay Honeck
Iowa City, IA
Pathfinder N56993
www.AlexisParkInn.com
"Your Aviation Destination"

I had my MT composite prop overhauled this year. The hub needed some
machining, but if the blades are damaged they are replaced. The leading edge
is nickel, but the rest is wood laminate for weight.

They do not do well in rain, since it chips the paint off of the wood.

On Oct 22, 12:24 pm, Jay Honeck wrote:
People are claiming 3-5 knots extra on the new prop but the
interesting thing about the new prop is that it (in theory) has an
unlimited life span. During overhaul the blades do not get smaller as
metal blades do so you can overhaul it as many times as necessary.

What's involved with overhauling a composite prop?

I believe after they are ground they are built-up again.

-Robert

On Mon, 22 Oct 2007 20:25:15 -0000, "Robert M. Gary"
wrote:

On Oct 22, 12:24 pm, Jay Honeck wrote:
People are claiming 3-5 knots extra on the new prop but the
interesting thing about the new prop is that it (in theory) has an
unlimited life span. During overhaul the blades do not get smaller as
metal blades do so you can overhaul it as many times as necessary.

What's involved with overhauling a composite prop?

I believe after they are ground they are built-up again.

Some also have (titanium?) erosion strip on the leading edge so that
you can replace the strip if you somehow manage to dent it.