On Sep 8, 6:58*pm, Tim wrote:
On Sep 8, 5:32*pm, "Eisboch" wrote:

wrote in message

...

WTF? Can't they put a muffler system on them, or is it the blades that
make the most noise?

----------------------------

Trust me. *The engine is loud.

The prop is much, much, louder.

Eisboch

Yes, go to an air show sometime and listen to a PiTT Special or a
Citaborea make a low altitude fast fly-by.

BWWWWWWAAAAAAAAAAAAAAAAHHHHHHHHHH!

The noise you actually are hearing is the prop beating the air. then
after they make the pass they get a lot quieter and you hear the
engine rumble.

What's cool is if somebody comes up with an old WW2 Corsair *and makes
a fly-by. Yes, you hear a tremendous noise coming fromt he prop then
when they pass you hear that marvelous "gallop:" of the Pratt 'n
Whitney radial!

My uncle worked on Corsairs as a CPO. I've got Navy ww2 service
manuals his tech school manuals, etc. Really nice to have! What is
cool about them is that again, they didn't just go to the store to buy
a part, they made a lot of parts so the manuals go into great detail.
Another interesting thing is when you are standing close to an
airplane and they are checking it out and at a certain RPM they go
through the range of prop pitches. Sounds a whole lot different
between fully pitched and feathered.