Mailing List flyrotary@lancaironline.net Message #48405
From: Mark Steitle <msteitle@gmail.com>
Subject: Re: [FlyRotary] "Tangential Muffler" was Quiet is Deafening
Date: Thu, 1 Oct 2009 16:18:04 -0500
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
I agree on using Inconel... that's what I'm using for my new tangential muffler.  Although my first exhaust manifold, which I'm still running, was made from commercial SS hand rail material and is holding up fine.  It is heavy, but lighter than using the stock cast iron manifold.  Ed Anderson is using these same SS handrails on his a/c and has lots of hours on them.  The secret is in the thickness (.140"). 
 
Mark 

On Thu, Oct 1, 2009 at 1:28 PM, Kelly Troyer <keltro@att.net> wrote:
Mark,
   Probably should be made from "Inconel" to last..............My memory fails me (regularly) but
if I recall correctly Al G's is inconel...............Jump in here Al...................
--
Kelly Troyer
"Dyke Delta"_13B ROTARY Engine
"RWS"_RD1C/EC2/EM2
"Mistral"_Backplate/Oil Manifold



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

Kelly,
 
You just need to fly at Mach 1 so you stay ahead of the sound.  ;-)
 
Can anyone report on the effectiveness of the tangential muffler in actual real world situations?  (As I recall Al G. is running a tangential muffler on his Velocity.)  I ask because I'm in the process of building one for my Lancair with the hopes that it will work better than the DNA muffler that I'm currently running.  I think it will work better at reducing the noise level in the cabin, but at what cost to power?  Hopefully, this will save me the cost of a new Zulu ANR headset.  Comments appreciated.
 
Mark S.

On Wed, Sep 30, 2009 at 10:01 PM, Mike Wills <rv-4mike@cox.net> wrote:
Kelly,
 
 If you think the quiet is deafening go fly behind a rotary - now thats deafening!
 
Mike Wills
RV-4 N144MW
----- Original Message -----
Sent: Wednesday, September 30, 2009 7:15 AM
Subject: [FlyRotary] Quiet is Deafening

Anyone out there ??.....................<:)
--
Kelly Troyer
"Dyke Delta"_13B ROTARY Engine
"RWS"_RD1C/EC2/EM2
"Mistral"_Backplate/Oil Manifold



 
-------------- Original message from "Patrick Panzera" <panzera@experimental-aviation.com>: --------------

Hey gang!

 

I came across a rare find this weekend.

Any serious rotorhead will certainly appreciate this.

 

Bluelines from 1973 of the General Motors Wankel Rotary engine.

 

I just put them up on eBay

 

http://tinyurl.com/GM-Rotary-drawings

 

Pat

 



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