X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from imf21aec.mail.bellsouth.net ([205.152.59.69] verified) by logan.com (CommuniGate Pro SMTP 4.3.2) with ESMTP id 968457 for flyrotary@lancaironline.net; Mon, 30 May 2005 21:55:20 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.152.59.69; envelope-from=sladerj@bellsouth.net Received: from ibm63aec.bellsouth.net ([65.2.91.3]) by imf21aec.mail.bellsouth.net with ESMTP id <20050531015435.HQEL2486.imf21aec.mail.bellsouth.net@ibm63aec.bellsouth.net> for ; Mon, 30 May 2005 21:54:35 -0400 Received: from JSLADE ([65.2.91.3]) by ibm63aec.bellsouth.net with ESMTP id <20050531015435.HJXU25209.ibm63aec.bellsouth.net@JSLADE> for ; Mon, 30 May 2005 21:54:35 -0400 From: "John Slade" To: "Rotary motors in aircraft" Subject: RE: [FlyRotary] Re: will EFI pumps pump air Date: Mon, 30 May 2005 21:54:32 -0400 Message-ID: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_00BA_01C56562.298A7F70" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) In-Reply-To: X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 Importance: Normal This is a multi-part message in MIME format. ------=_NextPart_000_00BA_01C56562.298A7F70 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit MessageI have separate tanks, pumps and filters on each side. Return is switched by a solenoid energized by switching the left pump on. This leads to its own set of fuel management issues, but it keeps the total redundancy I was looking for. Since we're analyzing fuel systems, I'd welcome any comments. Where does the fuel return go when both pumps are on? Left tank I'm guessing? Correct. I can't takeoff on both with the left tank full. Mostly I don't fill it. If I need to, my hand's real close to the fuel pump switch. Also guessing you turn that left pump off ASAP when climbing out with full tanks :-) Usually I turn the right pump off. I prefer to burn the fuel in the left tank first because I cant easily see the sight gauge on that side. John (EM2 up and running. Checking EC2 wiring over & over) Great to year you're running again! I wish. Just the EM2 so far. ------=_NextPart_000_00BA_01C56562.298A7F70 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message
I have separate tanks, pumps and filters on each side. = Return is=20 switched by a solenoid energized by switching the left pump on. This = leads to=20 its own set of fuel management issues, but it keeps the total redundancy = I was=20 looking for. Since we're analyzing fuel systems, I'd welcome any = comments.  
Where does the fuel return go when = both pumps are=20 on?  Left tank I'm guessing?   
Correct. I = can't takeoff=20 on both with the left tank full. Mostly I don't fill it. If I need to, = my hand's=20 real close to the fuel pump switch.
 
 Also = guessing you turn=20 that left pump off ASAP when climbing out with full tanks = :-) 
Usually I turn the right pump off. I = prefer to=20 burn the fuel in the left tank first because I cant easily see the sight = gauge=20 on that side.
 
 John (EM2 up = and running.=20 Checking EC2 wiring over & over)  
Great to=20 year you're running again! 
I wish. Just = the EM2 so=20 far.  
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