"Del Johnson, North Point Solutions, Inc" wrote:

I want to throw out some ideas I have about designing an exhaust
augmentation system and get your feedback:

Del

If you want to see some production exhaust augmenters, find a Beech Twin
Bonanza or Queen Air or an early Aero Commander, I believe they were the 500
Series. The Beech design had a liner with hundreds of small round holes and
IIRC, was packed with what appeared to be a thick cloth-like mat of possibly
fiberglass.  The sound was LOUDDD, and I personally found it to be very
irritating.  I suspect that the Aero Commander design was very similar, as
the sound was about the same.  They certainly would not endear themselves to
airport neighbors in today's environment.

Dean Van Winkle
RV-9A/13B NA
Fuselage

 
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