X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from nf-out-0910.google.com ([64.233.182.188] verified) by logan.com (CommuniGate Pro SMTP 5.1.12) with ESMTP id 2397909 for flyrotary@lancaironline.net; Sat, 20 Oct 2007 20:11:21 -0400 Received-SPF: pass receiver=logan.com; client-ip=64.233.182.188; envelope-from=rotary.thjakits@gmail.com Received: by nf-out-0910.google.com with SMTP id 30so691998nfu for ; Sat, 20 Oct 2007 17:10:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:to:subject:in-reply-to:mime-version:content-type:references; bh=cq7wBztL9yy6hIkh+1HJ2RD6scKn9UNPQwd0KysZb78=; b=o0JZF8EtMUUH+eqFaOkLDa3hJ/g7KXiMO7Luev5E8RO3MGiAmzfDcS0HF8cQvslsvmH9NWd0pv+NRxZzdQV9M4j1RIxIlDIP1FUYresMyWhO9D1/331j1h75NTgeJIJhoWrxv6/R/L+vdgnTOIDol7PshqApSQZKxnzQQaUSjXI= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:in-reply-to:mime-version:content-type:references; b=WLKrL7IuiCaJjh+XrLsfPqfkhc/SuV93uSkxw/wglskkjR5GmbPDgUTJE2fWX/xRBjmitroWK0+dork8a0NIPwW/hiYxQtdUF3xuzH2Ch3FxZn1ofVLd7WagMRHMwODd67M2ug/R7tVaelVctOM/XLhbgmuYmINTHagwlWDVf7g= Received: by 10.78.201.2 with SMTP id y2mr2218667huf.1192925443717; Sat, 20 Oct 2007 17:10:43 -0700 (PDT) Received: by 10.78.163.19 with HTTP; Sat, 20 Oct 2007 17:10:38 -0700 (PDT) Message-ID: <63163d560710201710m555ba156w42727ef7fafba8d5@mail.gmail.com> Date: Sat, 20 Oct 2007 19:10:38 -0500 From: "Thomas Jakits" To: "Rotary motors in aircraft" Subject: Re: [FlyRotary] Re: BellMouth Article In-Reply-To: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_Part_5874_12201975.1192925438683" References: ------=_Part_5874_12201975.1192925438683 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline Although "radius" will get you most already, I found the "resonance"-fog interesting. All but the ellipse form will have a cloud of mixture outside the bellmouth. The Ellipse has only a very shallow cushion right on the bellmouth. Interesting if you fire your injectors directly into the bellmouth.... TJ On 10/17/07, wrjjrs@aol.com wrote: > > Robert, > Try TWM or Jenvey (Both British) or Summit Racing in the good 'ol USA. > Bill Jepson > > > -----Original Message----- > From: Rob > To: Rotary motors in aircraft > Sent: Wed, 17 Oct 2007 12:56 pm > Subject: [FlyRotary] Re: BellMouth Article > > Can anyone tell me where to get a bellmouth to attach to my intake > manifold which I still have to make for my 20B. > Does someone make these ready made or do I have to machine it myself. > Robert > > Robert Bollinger > FM1099 MUM > Fairfield, IA 52557 > rob@mum.edu > Home (641)472-7000ex2068 > Cell (641)919-3213 > ----- Original Message ----- From: "Ernest Christley" < > echristley@nc.rr.com> > To: "Rotary motors in aircraft" > Sent: Wednesday, October 17, 2007 2:49 PM > Subject: [FlyRotary] Re: BellMouth Article > > > Dale Rogers wrote: > >> In our application, there is less attenuation, but a 1.5 hp increase - > >> for just changing a contour in the inlet - is almost "free" power.. > >> > > I especially liked how the author characterized the different contours. > > Just any ol' radius will get you most of the payback, but there are slight > > incremental improvements to be had with more manufacturing effort. He > > makes it very easy to decide how much work you're willing to invest. > > > > -- > > Homepage: http://www.flyrotary.com/ > > Archive and UnSub: > > http://mail.lancaironline.net:81/lists/flyrotary/List.html > > > > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: > http://mail.lancaironline.net:81/lists/flyrotary/List.html > > ------------------------------ > Email and AIM finally together. You've gotta check out free AOL Mail > ! > > ------=_Part_5874_12201975.1192925438683 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline
Although "radius" will get you most already, I found the "resonance"-fog interesting.
All but the ellipse form will have a cloud of mixture outside the bellmouth.
The Ellipse has only a very shallow cushion right on the bellmouth.
Interesting if you fire your injectors directly into the bellmouth....
 
TJ

 
On 10/17/07, wrjjrs@aol.com <wrjjrs@aol.com> wrote:
Robert,
Try TWM or Jenvey (Both British) or Summit Racing in the good 'ol USA.
Bill Jepson


-----Original Message-----
From: Rob <rob@mum.edu>
To: Rotary motors in aircraft < flyrotary@lancaironline.net>
Sent: Wed, 17 Oct 2007 12:56 pm
Subject: [FlyRotary] Re: BellMouth Article

Can anyone tell me where to get a bellmouth to attach to my intake manifold which I still have to make for my 20B. 
Does someone make these ready made or do I have to machine it myself. 
Robert 
 
Robert Bollinger 
FM1099 MUM 
Fairfield, IA 52557 
rob@mum.edu 
Home (641)472-7000ex2068 
Cell (641)919-3213 
----- Original Message ----- From: "Ernest Christley" < echristley@nc.rr.com> 
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net > 
Sent: Wednesday, October 17, 2007 2:49 PM 
Subject: [FlyRotary] Re: BellMouth Article 
 
> Dale Rogers wrote: 
>> In our application, there is less attenuation, but a 1.5 hp increase - 
>> for just changing a contour in the inlet - is almost "free" power.. 
>> 
> I especially liked how the author characterized the different contours. > Just any ol' radius will get you most of the payback, but there are slight > incremental improvements to be had with more manufacturing effort. He > makes it very easy to decide how much work you're willing to invest. 
> 
> -- 
> Homepage: http://www.flyrotary.com/ 
> Archive and UnSub: > http://mail.lancaironline.net:81/lists/flyrotary/List.html 
>  
 
-- 
Homepage: http://www.flyrotary.com/  
Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.html  
 
Email and AIM finally together. You've gotta check out free AOL Mail!
 

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