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From: Bulent Aliev <atlasyts@bellsouth.net>
Subject: Re: [FlyRotary] Re: New NA exhaust finished
Date: Tue, 15 Aug 2006 20:17:19 -0400
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>


On Aug 15, 2006, at 7:51 PM, Charlie England wrote:

> Bulent Aliev wrote:
>
>> After almost 3 weeks, my new 2 pipe straight out exhaust is  
>> finished.  It is made of 2"  321 stainless tubing. At the end they  
>> converge into  one short 4" oval tube. The fancy bends are to make  
>> the inside length  the same for each tube. The flange is Racing  
>> Beat mild steel. Each  tube has one EGT sensor about 3" away from  
>> the exhaust port. The O2  sensor is on only one of the tubes due  
>> to lack of room.. My biggest  concern was the noise that it was  
>> going to make. I was pleasantly  surprised when I started it in  
>> the hangar (John Slade told me it is  OK to do it :). The noise  
>> was almost the same as with the turbo  housing on. Saved 30 pounds  
>> of weight on the engine and maybe 10  pounds less of ballast on  
>> the nose. Did not have time to run the  engine at full tilt, since  
>> I'm in the process of making stainless  steel heat shields.
>> Bulent "Buly" Aliev
>> FXE Ft lauderdale, FL
>> http://tinyurl.com/s5xw8
>
>
> It sure looks nice, but is there any reason for the oval collector?  
> Haven't quite a few others had fatigue failure 'issues' with non- 
> round outlets?
>
>
>

That crossed my mind too Charlie, but we'll see? The shop that made  
it it is across the street :)
Buly