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Date: Thu, 21 Apr 2005 20:47:16 -0500
Subject: Re: [FlyRotary] Re: Aeroturbine muffler
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From: Jerry Hey <jerryhey@earthlink.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
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It depends on the type of SS.  Type 304 SS, the most common found in  
mufflers and exhaust systems will not stand up "forever" to the heat of  
a rotary. In fact, it might disappear quite quickly if the exhaust  
blasts directly into a wall, such as a bend just outside the exhaust  
port.   In tests in my forge I was able to get pieces of 304 to flake  
when heated to 1600 degrees.  Of course thicker material dissipate heat  
better and will last longer.  Type 321 is much more heat resistant.  It  
might last forever depending on the thickness and the exhaust design.    
Jerry


On Thursday, April 21, 2005, at 08:06 PM, Mark R Steitle wrote:

>
> George,
> Best I can tell, there is no packing in this muffler that can blow  
> out.  SS ought to handle the heat, and they're streamlined.  Or, they  
> are small enough to locate put in the cowl.
>
> Mark
>
>
>
>
> -----Original Message-----
> From: Rotary motors in aircraft on behalf of George Lendich
> Sent: Thu 4/21/2005 4:55 PM
> To: Rotary motors in aircraft
> Subject: [FlyRotary] Re: Aeroturbine muffler
>
> Mark,
> It doesn't look that different from most mufflers, I don't know if it  
> has any packing or not. I had a quick look at the site but didn't see  
> any comment.
> George ( down under)
>   OK, while Ed is waiting for his side housings to arrive I thought I  
> would ask if anyone has heard, or tried this muffler.  Here is a snip  
> from their description of the truck/SUV muffler model 3030, which has  
> a 3' inlet/outlet.  They also make 2.5", 3.5", 4" and 5" inlet/outlet  
> models.  It comes with a lifetime warranty <big grin>.  It looks to be  
> very streamlined, made of SS, lightweight, and has no packing. It  
> sells for less than $200 (except for the 5" model).  This looks like  
> this just might be what I've been looking for.  More info available at  
> http://www.pickupspecialties.com/Aero_Turbine/ 
> aeroturbine_mufflers.htm.  Comments???
>
>
>
>   Mark S.
>
>   (I have no affiliation with this company)
>
>   The AT3030 is completely stainless steel inside and out. There is no  
> packing or moisture collecting material in the muffler. The  
> hand-polished stainless steel AT3030 will give you the look and feel  
> that you want and the performance you deserve. The Aeroturbine  
> Lifetime Warranty will guarantee that your investment is still  
> performing as long as you own your vehicle.
>
>
>
>
> <winmail.dat> Homepage:  http://www.flyrotary.com/
>>>  Archive:   http://lancaironline.net/lists/flyrotary/List.html