X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from QMTA08.emeryville.ca.mail.comcast.net ([76.96.30.80] verified) by logan.com (CommuniGate Pro SMTP 5.2.10) with ESMTP id 3327827 for flyrotary@lancaironline.net; Tue, 02 Dec 2008 20:32:56 -0500 Received-SPF: pass receiver=logan.com; client-ip=76.96.30.80; envelope-from=wschertz@comcast.net Received: from OMTA11.emeryville.ca.mail.comcast.net ([76.96.30.36]) by QMTA08.emeryville.ca.mail.comcast.net with comcast id mQkQ1a00E0mlR8UA8RYKdz; Wed, 03 Dec 2008 01:32:19 +0000 Received: from WschertzPC ([74.165.251.113]) by OMTA11.emeryville.ca.mail.comcast.net with comcast id mRY31a00L2TZKEJ8XRY9n9; Wed, 03 Dec 2008 01:32:17 +0000 X-Authority-Analysis: v=1.0 c=1 a=7g1VtSJxAAAA:8 a=Ia-xEzejAAAA:8 a=zLMDfErk_EHtBvpeKdYA:9 a=4sIsfe98OyIFAjQD1xcA:7 a=EdTJIoFqXRz8Xuiq33B041VKyy0A:4 a=3A9lNKN2IPAA:10 a=EzXvWhQp4_cA:10 a=6bqG61NMjcsA:10 Message-ID: From: "Bill Schertz" To: "Rotary motors in aircraft" References: In-Reply-To: Subject: Re: [FlyRotary] Re: Fuel system Date: Tue, 2 Dec 2008 19:32:00 -0600 MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=response Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Windows Mail 6.0.6001.18000 X-MimeOLE: Produced By Microsoft MimeOLE V6.0.6001.18049 Consider using an ANDAIR duplex valve. It takes fuel from one tank and returns it to the same tank. Turn it and it takes and returns to the other tank. Simple in operation, but requires more plumbing. Bill Schertz KIS Cruiser #4045 N343BS ----- Original Message ----- From: "randy echtinaw" To: "Rotary motors in aircraft" Sent: Tuesday, December 02, 2008 6:50 PM Subject: [FlyRotary] Re: Fuel system > Al, > That was my first thought to just drain the smaller tank into the > larger with a simple 1/4 turn on/off but I would have to run the main at > least 1/2 empty for this to work. I cannot fly ackro with less than 6 > gallons in the main tank. I cannot fly ackro at all with fuel in the > smaller tank so by the time the smaller tank emptied I would have little > fuel remaining in the larger tank. I even considered a small transfer > pump to fill the larger tank but I am again creating complexity. > All input here is welcome :)) > Thanks, > --------------------------------- > > On Dec 2, 2008, at 7:39 PM, Al Gietzen wrote: > >> Randy; >> >> Is the positioning of the tanks such that you could gravity feed the >> small >> tank into the big tank? Then you could return to the larger tank - and >> eliminate the selector valve. >> >> Al G >> >> -----Original Message----- >> From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On >> Behalf Of randy echtinaw >> Sent: Tuesday, December 02, 2008 3:59 PM >> To: Rotary motors in aircraft >> Subject: [FlyRotary] Fuel system >> >> Gentlemen, >> Because a large majority of homebuilt problems are fuel related I >> am trying to make my system as simple as possible. This is a biplane >> with a 20 gal. and a 10 gal. tank in front of the inst. panel, RX-8 >> engine. >> The only "known" problem I have at the moment is my fuel return. I >> would like it to return to the main tank only. This would mean burning >> off 2-3 gallons from the main tank before switching to the 2nd tank. >> But, this might mean I am setting myself up for a future "pilot error" >> in fuel management. If I return to both tanks I would need another >> selector and cockpit control which is making the system more >> complicated and, again, potential "pilot error." So, suggestions . . . >> Thank you very much, >> Randy >> >> >> >> -- >> 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 >