flyrotary@lancaironline.net Mailing List Archive

No Packing, Kelly. Basically concentric tubes with holes in them. It appears to use acoustical wave damping as a primary sound suppression technique followed by damping from the energy lost caused by the numerous holes. The HushPower resonator is basically 1/2 of the regular HushPower II muffler (also 1/2 its length)

----- Original Message -----

From: Kelly Troyer

To: Rotary motors in aircraft

Sent: Tuesday, January 08, 2008 6:47 PM

Subject: [FlyRotary] Re: Dennis' Muffler

Mark,

Any info on what the packing is in the "Hushpower"??

Thanks

--
Kelly Troyer
"Dyke Delta"_13B ROTARY Engine
"RWS"_RD1C/EC2/EM2
"Mistral"_Backplate/Oil Manifold

-------------- Original message from "Mark Steitle" <msteitle@gmail.com>: --------------

Bill,

Here is a cutaway of the Hushpower II Resonator. I'll have to get the dimensions this weekend. The dimensions you quoted are pretty close, but you may need a heat shield, or some Zetex to protect the fiberglass.

Mark