X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mtiwmhc11.worldnet.att.net ([204.127.131.115] verified) by logan.com (CommuniGate Pro SMTP 5.1c.2) with ESMTP id 1235520 for flyrotary@lancaironline.net; Thu, 13 Jul 2006 13:54:41 -0400 Received-SPF: none receiver=logan.com; client-ip=204.127.131.115; envelope-from=keltro@att.net Received: from mwebmail16.att.net ([204.127.135.42]) by worldnet.att.net (mtiwmhc11) with SMTP id <20060713175352111004au3le>; Thu, 13 Jul 2006 17:53:58 +0000 Received: from [63.157.92.251] by mwebmail16.att.net; Thu, 13 Jul 2006 17:53:52 +0000 From: keltro@att.net (Kelly Troyer) To: "Rotary motors in aircraft" Subject: Re: [FlyRotary] Re: heater Date: Thu, 13 Jul 2006 17:53:52 +0000 Message-Id: <071320061753.7355.44B688AE000AE65200001CBB2160281302019D9B040A05@att.net> X-Mailer: AT&T Message Center Version 1 (Feb 28 2006) X-Authenticated-Sender: a2VsdHJvQGF0dC5uZXQ= MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="NextPart_Webmail_9m3u9jl4l_7355_1152813232_0" --NextPart_Webmail_9m3u9jl4l_7355_1152813232_0 Content-Type: text/plain Content-Transfer-Encoding: 8bit -- Kelly Troyer Dyke Delta/13B/RD1C/EC2 -------------- Original message from Ernest Christley : -------------- > Kelly Troyer wrote: > > > Snip > > > I believe your numbers are atypical. Most guys are seeing higher oil > > > than water temps. But I believe that will be an installation specific > > > condition. I'll be running without a thermostat. The water has a lot > > > more thermal mass than the oil, so I expect the oil to come up to temp > > > much faster. I'm planning a sliding door to cut the airflow through the > > > strake mounted ducts, so it probably won't matter. I can get the temps > > > up quickly on either one. But I still think the oil will get hotter > > > faster than the water. > > > > Ernest, > > Sliding door where ?? Inlet or outlet ?? > > > > Kelly T > > Outlet. The part of the duct that made into the wheel-well will come up > to meet the top skin, which will have shark gills molded into it. It's > a simple matter to have a cable controlled aluminum plate that will > slide between the two, blocking off some of the exit holes. > > My plan for building the shark gills is to use strips of 2" tape laid > parallel. The first is laid, then half covered lengthwise with a piece > of 2" wide, 1/2" thick foam. A strip of 2" tape is laid down so that it > runs off both ends but only covers 1/2 of the foam lengthwise. Another > foam strip and more tape, etc. Each strip is actually several plies for > strength, and each will give about 5in^2 of exit area. There won't be > any holes going straigth down, as I don't want this to be a funnel for > rain water.I have room for about 8 to 10. Way more than necessary, but > it is easier to cut back than to add on, and having a panel that will > cover what isn't necessary make it better. > > Ernest Christley Ernest, Are these "gills" to be on the exterior of the skin ? If so has any consideration been given to possible disruption to airflow and lift in this area of the strake ? How about a drawing (crude or otherwise) Kelly T --NextPart_Webmail_9m3u9jl4l_7355_1152813232_0 Content-Type: text/html Content-Transfer-Encoding: 8bit

--
Kelly Troyer
Dyke Delta/13B/RD1C/EC2

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

> Kelly Troyer wrote:
>
> > Snip
> > > I believe your numbers are atypical. Most guys are seeing higher oil
> > > than water temps. But I believe that will be an installation specific
> > > condition. I'll be running without a thermostat. The water has a lot
> > > more thermal mass than the oil, so I expect the oil to come up to temp
> > > much faster. I'm planning a sliding door to cut the airflow through the
> > > strake mounted ducts, so it probably won't matter. I can get the temps
> > > up quickly on either one. But I still think the oil will get hotter
> > > faster than the water.
> >
> > Ernest,
> > Sliding door where ?? Inlet or outlet ??
> >
> > Kelly T
>
> Outlet. The part of the duct that made into the wheel-well will come up
> to meet the top skin, which will have shark gills molded into it. It's
> a simple matter to have a cable controlled aluminum plate that will
> slide between the two, blocking off some of the exit holes.
>
> My plan for building the shark gills is to use strips of 2" tape laid
> parallel. The first is laid, then half covered lengthwise with a piece
> of 2" wide, 1/2" thick foam. A strip of 2" tape is laid down so that it
> runs off both ends but only covers 1/2 of the foam lengthwise. Another
> foam strip and more tape, etc. Each strip is actually several plies for
> strength, and each will give about 5in^2 of exit area. There won't be
> any holes going straigth down, as I don't want this to be a funnel for
> rain water.I have room for about 8 to 10. Way more than necessary, but
> it is easier to cut back than to add on, and having a panel that will
> cover what isn't necessary make it better.
>
> Ernest Christley

    Ernest,

        Are these "gills" to be on the exterior of the skin ? If so has any

consideration been given to possible disruption to airflow and lift in

this area of the strake ? How about a drawing (crude or otherwise)

Kelly T

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