X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mtiwmhc13.worldnet.att.net ([204.127.131.117] verified) by logan.com (CommuniGate Pro SMTP 5.0c5) with ESMTP id 775982 for flyrotary@lancaironline.net; Fri, 21 Oct 2005 16:54:21 -0400 Received-SPF: none receiver=logan.com; client-ip=204.127.131.117; envelope-from=keltro@att.net Received: from 204.127.135.60 ([204.127.135.60]) by worldnet.att.net (mtiwmhc13) with SMTP id <2005102120533611300rvrt2e>; Fri, 21 Oct 2005 20:53:36 +0000 Received: from [172.175.187.89] by 204.127.135.60; Fri, 21 Oct 2005 20:53:34 +0000 From: keltro@att.net (Kelly Troyer) To: "Rotary motors in aircraft" Subject: Re: NACA scoops Date: Fri, 21 Oct 2005 20:53:34 +0000 Message-Id: <102120052053.18073.4359554D00043F45000046992160383116019D9B040A05@att.net> X-Mailer: AT&T Message Center Version 1 (Feb 14 2005) X-Authenticated-Sender: a2VsdHJvQGF0dC5uZXQ= MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="NextPart_Webmail_9m3u9jl4l_18073_1129928014_0" --NextPart_Webmail_9m3u9jl4l_18073_1129928014_0 Content-Type: text/plain Content-Transfer-Encoding: 8bit Ernest, Mockups are only in my mind at this time........I would like to see your Javafoil info as I think it would be helpful to exit cooling air at or near separation point if I am correct in what I think I know (very little) about the subject !! I am on dialup , can I get you to burn me a cd !! E-mail me privately with your address and I will send cost and postage...... -- Kelly Troyer Dyke Delta/13B/RD1C/EC2 -------------- Original message from Ernest Christley : -------------- > Kelly Troyer wrote: > > > Inlet lip will not protrude enough to use as step > > if I follow NACA report 743 (subject to change if I need to modify lip > > from 743 shapes). > > > Kelly, I think that to get the most from this report, you'll need to use > something like Javafoil to compare the transition and seperation points > of the NACA 23017 (which was used in the report) against the Delta's. > I've got those if you're interested. What I think is particulary > interesting to see is comparing the configurations where the efficiency > jumps off the charts to where the natural transition and seperation > points occur on the wing sections. > > Thomas, I don't think there is anything in report 743 that would speak > AGAINST the use of submerged inlets or streamlined ducts. It's more a > study of where and how large to configure the openings. Some discussion > is given to the size of the inlet radius, but that would also be > instructive to radiusing the lip of a NACA duct. > > > -- > ,|"|"|, | > ----===<{{(oQo)}}>===---- Dyke Delta | > o| d |o www.ernest.isa-geek.org | --NextPart_Webmail_9m3u9jl4l_18073_1129928014_0 Content-Type: text/html Content-Transfer-Encoding: 8bit
Ernest,
    Mockups are only in my mind at this time........I would like to see your Javafoil  info
as I think it would be helpful to exit cooling air at or near separation point if I am
correct in what I think I know (very little) about the subject !! I am on dialup , can I
get you to burn me a cd !! E-mail me privately with your address and I will send cost
and postage......
--
Kelly Troyer
Dyke Delta/13B/RD1C/EC2




-------------- Original message from Ernest Christley <echristley@nc.rr.com>: --------------


> Kelly Troyer wrote:
>
> > Inlet lip will not protrude enough to use as step
> > if I follow NACA report 743 (subject to change if I need to modify lip
> > from 743 shapes).
>
>
> Kelly, I think that to get the most from this report, you'll need to use
> something like Javafoil to compare the transition and seperation points
> of the NACA 23017 (which was used in the report) against the Delta's.
> I've got those if you're interested. What I think is particulary
> interesting to see is comparing the configurations where the efficiency
> jumps off the charts to where the natural transition and seperation
> points occur on the wing sections.
>
> Thomas, I don't think there is anything in report 743 that would speak
> AGAINST the use of submerged inlets or streamlined ducts. It's more a
> study of where and how large to configure the openings. Some discussion
> is given to the size of the inlet radius, but that would also be
> instructive to radiusing the lip of a NACA duct.
>
>
> --
> ,|"|"|, |
> ----===<{{(oQo)}}>===---- Dyke Delta |
> o| d |o www.ernest.isa-geek.org |
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