Mistral  was developing a muffler for it's rotary
engines, could be a  good
source for inspiration or the mufflers them selves  though
their stuff tends
to be pricey.


Clifton

"developing" is the KEY work. Don't forget thats why there  Piper test
aircraft crashed last year.

Erik
I read that it was an offering from a third party. It had some good ideas,
but they seemed unaware of the hammering effect of the rotary. A piece came
loose and partially blocked the outlet bringing the plane down short of
the  runway. It also appeared to have been costing HP wise even before it
failed.

Lynn E. Hanover