flyrotary@lancaironline.net Mailing List Archive

Message

Mark it reminds me a bit of some of the "inserts" you can put in your header. I tried some in my turbo block headers and while they did lower the noise and I was initially pleased, the shock wave of the exhaust reduced the mild steel they were fabricated from to small pieces within a month. No question the muffler insert would probably withstand the heat being ceramic - but, I would wonder about the shock. This is the shock that reduced some of my early SS fishtail tube attachments to fragments in a few minutes of WOT - pieces missing, gone like something had bit them out. All due to metal fatigue.

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

From: Mark R Steitle

To: Rotary motors in aircraft

Sent: Thursday, April 21, 2005 5:28 PM

Subject: [FlyRotary] Re: Aeroturbine muffler

Rusty,

According to their website, it sure does, <snip> “Easily replaceable aerospace ceramic muffling cartridge”

But hey, its “aerospace” grade ceramic.

Mark

From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Russell Duffy
Sent: Thursday, April 21, 2005 4:20 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Aeroturbine muffler

More info available at http://www.pickupspecialties.com/Aero_Turbine/aeroturbine_mufflers.htm. Comments???

Mark S.

Looks pretty interesting. I need a small, lightweight muffler for the single rotor project, and have been thinking of these:

http://www.burnsstainless.com/UltraliteMuffler/ultralitemuffler.html

It sounds like there's either ceramic, or stainless packing in the Burns muffler though, and no lifetime warranty.

Rusty (off to do another 30 minute test for oil leakage)