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From: Christopher Owens <rotary@cmowens.com>
Subject: Re: [FlyRotary] Exhaust system choices
Date: Thu, 4 Dec 2008 11:10:08 -0600
To: Rotary motors in aircraft <flyrotary@lancaironline.net>

Did some more searching and it looks like this topic was well covered  
back in June.  I'll take a close look at the topic and see what there  
is to see.  Otherwise, happy to read any other thoughts on the topic.

Best regards,
Chris


On Dec 4, 2008, at 9:17 AM, Christopher Owens wrote:

> Hi all,
>
> Been lurking in this group for a while and thought it might be time  
> for a question of my own.
>
> I've read through Tracy's exhaust adventures on his web site, in  
> his conversion guide, and in his Mazda Papers, and note that he's  
> tried just about every imaginable combination that would fit in his  
> aircraft.  It seems that the underbody mounted solution is the one  
> that's seen the most use.  And it probably works best given the  
> limited space inside the cowl of his aircraft.
>
> But what if one is building an aircraft that has more space inside  
> the engine compartment?  My friend and I will begin construction of  
> a pair of Barrows Bearhawk aircraft in pretty short order, and  
> rotary engines are likely in their future.  There's a fair amount  
> of space inside the cowling of this aircraft after the engine goes  
> in, the best that I can tell.  If space permits, is the tangential  
> muffler the better option for this installation?  I've also  
> considered seeing if I could use the Racing Beat header and snake  
> some curved tubing around to meet some exhaust components inside  
> the engine compartment as well, but don't know if this is an  
> effective solution too many turns in the system for clean exhaust  
> output.  I'm still doing much research in this regard.
>
> Elden Yates just finished his rotary Bearhawk and is flying off  
> hours, as I understand it, but I haven't seen many photos of his  
> engine installation to see what fits and what doesn't.  Perhaps  
> I'll be lucky enough to see it at Oshkosh one day.
>
> Thanks and best regards,
> Chris (digging through the archives for hints)
>
> --
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