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 5.1c.5) with ESMTP id 1448118 for flyrotary@lancaironline.net; Sat, 07 Oct 2006 12:16:19 -0400 Received-SPF: none receiver=logan.com; client-ip=204.127.131.117; envelope-from=keltro@att.net Received: from mwebmail14.att.net ([204.127.135.40]) by worldnet.att.net (mtiwmhc13) with SMTP id <200610071615501130058bade>; Sat, 7 Oct 2006 16:16:00 +0000 Received: from [64.250.199.37] by mwebmail14.att.net; Sat, 07 Oct 2006 16:15:50 +0000 From: keltro@att.net (Kelly Troyer) To: "Rotary motors in aircraft" Subject: Re: [FlyRotary] Re: Fuselage duct completed Date: Sat, 07 Oct 2006 16:15:50 +0000 Message-Id: <100720061615.23875.4527D2B500043C0500005D432160280748019D9B040A05@att.net> X-Mailer: AT&T Message Center Version 1 (Jul 31 2006) X-Authenticated-Sender: a2VsdHJvQGF0dC5uZXQ= MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="NextPart_Webmail_9m3u9jl4l_23875_1160237750_0" --NextPart_Webmail_9m3u9jl4l_23875_1160237750_0 Content-Type: text/plain Content-Transfer-Encoding: 8bit Jim, Hope to hear you have some air between wheels and runway soon!! -- Kelly Troyer Dyke Delta/13B/RD1C/EC2/EM2 Mistral Backplate -------------- Original message from James Maher : -------------- Ernest, It looks like you put a lot of effort into this ducting design. I really hope that it works as intended. Did you check the heat distortion temp of the resin that you used? Generally they are around 200F+-25F. This would be a concern as the temps could get that high in that area and you would not want the ducts melting. The fabric is not a concern as it only gets tighter with temp and the final shrink should be at 350F so 200F will not be an issue. Last weekend I performed high speed taxi tests for over an hour at speeds up to 80MPH. (0-80MPH in 10 seconds) The engine temps stablized right at their ideal temps with OAT at 60-65F. My Delta is finally ready for first flight. Jim Ernest Christley wrote: It took longer than I would have ever believed, but I finally have the fuselage ducting for my oil cooler and one of the two radiators completed. The top fabric of the center section looks loose. There is no solid structure on the top ribs to keep them spaced properly till I rivet the top skin on. It will be pulled tight then. The big opening will also be closed up with a section of fabric after the top skin is in place. --NextPart_Webmail_9m3u9jl4l_23875_1160237750_0 Content-Type: text/html Content-Transfer-Encoding: 8bit
Jim,
  Hope to hear you have some air between wheels and runway soon!!
--
Kelly Troyer
Dyke Delta/13B/RD1C/EC2/EM2
Mistral Backplate




-------------- Original message from James Maher <deltaflyer@prodigy.net>: --------------

Ernest,
It looks like you put a lot of effort into this ducting design.
I really hope that it works as intended.
Did you check the heat distortion temp of the resin that you used?
Generally they are around 200F+-25F.
This would be a concern as the temps could get that high in that area and you would not want the ducts melting.
The fabric is not a concern as it only gets tighter with temp and the final shrink should be at 350F so 200F will not be an issue.
 
Last weekend I performed high speed taxi tests for over an hour at speeds up to 80MPH. (0-80MPH in 10 seconds)
The engine temps stablized right at their ideal temps with OAT at 60-65F.
My Delta is finally ready for first flight.
Jim

Ernest Christley <echristley@nc.rr.com> wrote:
It took longer than I would have ever believed, but I finally have the
fuselage ducting for my oil cooler and one of the two radiators
completed. The top fabric of the center section looks loose. There is
no solid structure on the top ribs to keep them spaced properly till I
rivet the top skin on. It will be pulled tight then. The big opening
will also be closed up with a section of fabric after the top skin is in
place.


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