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 4.3.4) with ESMTP id 1002559 for flyrotary@lancaironline.net; Wed, 15 Jun 2005 01:17:37 -0400 Received-SPF: none receiver=logan.com; client-ip=204.127.131.115; envelope-from=keltro@att.net Received: from 204.127.135.75 ([204.127.135.75]) by worldnet.att.net (mtiwmhc11) with SMTP id <2005061505164811100o7805e>; Wed, 15 Jun 2005 05:16:53 +0000 Received: from [209.247.222.85] by 204.127.135.75; Wed, 15 Jun 2005 05:16:47 +0000 From: keltro@att.net (Kelly Troyer) To: "Rotary motors in aircraft" Subject: Re: fuel pump mounting ( fuel system architecture) Date: Wed, 15 Jun 2005 05:16:47 +0000 Message-Id: <061520050516.3338.42AFB9BF00084E7B00000D0A2160466648019D9B040A05@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_3338_1118812607_0" --NextPart_Webmail_9m3u9jl4l_3338_1118812607_0 Content-Type: text/plain Content-Transfer-Encoding: 8bit Bernie, Not Mark but will give it a try........Mark has a dual level fuel valve which determines which tank that fuel is drawn from and returned to.........If I have understood your question correctly !! -- Kelly Troyer Dyke Delta/13B/RD1C/EC2 -------------- Original message from WALTER B KERR : -------------- > > On Tue, 14 Jun 2005 16:23:22 -0500 "Mark R Steitle" > writes: > > Jerry, > > You forced me to do a sketch. So, here it is. > > > > Mark > >--------------------------------------- > Mark, why do you choose not to return fuel to the tank instead of to the > selector valve? I have been to 17000 feet in Fla on auto gas and when I > landed the tanks feel very cool to hand and this is the fuel that the > pump sees rather than the elevated temps coming back from the engine bay. > I have run tanks dry above 10000 and the engine quickly fired off as soon > as I switched tanks so returning fuel to the tank has passed any test I > can think of. The fact that the system apparently boils someplace along > the way during ground shutdown but quickly clears when the pump is turned > on says that if I had a small orifice that it probably would take longer > to bleed the vapor rather than returning it to a cooler tank. > > Bernie --NextPart_Webmail_9m3u9jl4l_3338_1118812607_0 Content-Type: text/html Content-Transfer-Encoding: 8bit
Bernie,
    Not Mark but will give it a try........Mark has a dual level fuel valve which
determines which tank that fuel is drawn from and returned to.........If I have
understood your question correctly !!
--
Kelly Troyer
Dyke Delta/13B/RD1C/EC2




-------------- Original message from WALTER B KERR <jbker@juno.com>: --------------


>
> On Tue, 14 Jun 2005 16:23:22 -0500 "Mark R Steitle"
> writes:
> > Jerry,
> > You forced me to do a sketch. So, here it is.
> >
> > Mark
> >---------------------------------------
> Mark, why do you choose not to return fuel to the tank instead of to the
> selector valve? I have been to 17000 feet in Fla on auto gas and when I
> landed the tanks feel very cool to hand and this is the fuel that the
> pump sees rather than the elevated temps coming back from the engine bay.
> I have run tanks dry above 10000 and the engine quickly fired off as soon
> as I switched tanks so returning fuel to the tank has passed any test I
> can think of. The fact that the system apparently boils someplace along
> the way during ground shutdown but quickly clears when the pump is turned
> on says that if I had a small orifice that it probably would take longer
> to bleed the vapor rather than returning it to a cooler tank.
>
> Bernie
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