Are you sure it is all engine noise Jerry? What is your prop diameter
and what RPM do you take off at? You need to enlist some help there
and get a Radio Shack DB meter to monitor different take off RPM
settings
from the ground. An AT6 or a Cessna 210 206 with a constant speed prop
are very noisy because the tips are going transonic.

Paul Lamar

Paul,

I just read this in FLYER mag. Unfortunately I have no scanner at home

and

in the company they don't run ORC, so please take it apart as you wish!

I

think this right up the tree, especially as it seems to INCREASE
performance! See the attachment! If you need I can typ the text into an
e-mail....

Thomas J.

Usually you lose a little top speed.

Paul Lamar

Just got of the Hoffmann website. They don't list any specific props, but
like to custom make them to a specific airframe/engine.
For the lost top speed just turn up the boost! As we don't have it with a
Rotary!! Or slap on another Rotor!!!
Thomas J.

 
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