X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [129.116.87.143] (HELO MAIL01.austin.utexas.edu) by logan.com (CommuniGate Pro SMTP 4.3.4) with ESMTP id 1002884 for flyrotary@lancaironline.net; Wed, 15 Jun 2005 11:02:36 -0400 Received-SPF: none receiver=logan.com; client-ip=129.116.87.143; envelope-from=mark.steitle@austin.utexas.edu X-MimeOLE: Produced By Microsoft Exchange V6.5.7226.0 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Subject: RE: [FlyRotary] Re: EFI Bleeder Circuit (Was Engine Not Starting) Date: Wed, 15 Jun 2005 10:01:49 -0500 Message-ID: <87DBA06C9A5CB84B80439BA09D86E69E016C1A29@MAIL01.austin.utexas.edu> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [FlyRotary] Re: EFI Bleeder Circuit (Was Engine Not Starting) Thread-Index: AcVxuNka1L78khLLRMuvJwkU8PA/5wAAFGBQ From: "Mark R Steitle" To: "Rotary motors in aircraft" John,=20 I had considered that, but it too has drawbacks. Such as if one pump fails, you have lost access to all the fuel in that wing. If you keep the Andair valve, I'm not so sure it will handle the higher pressures. With the Andair valve, you have to be careful to switch the valve and pump switches together. Also, more pressurized lines in the cabin. The bleeder circuit just seemed a more elegant solution (to me).=20 If I were to put the pump at the wing tank, I would copy Tracy's design to the letter. =20 Mark =20 -----Original Message----- From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of John Slade Sent: Wednesday, June 15, 2005 9:44 AM To: Rotary motors in aircraft Subject: [FlyRotary] Re: EFI Bleeder Circuit (Was Engine Not Starting) > reprime itself in about 10 seconds. Yes, under the right circumstances, > that could be the longest 10 seconds of my life. This should only > happen if you run a tank dry. But if that happens, the procedure will > be to switch to the other tank (should have fuel), then turn on the > boost pump. That should reduce the recovery time to something less than > 10 seconds. Wouldn't this be a good argument for having a pump on each tank? This way the other one is already primed and will push the air out pronto - no? John >> Homepage: http://www.flyrotary.com/ >> Archive: http://lancaironline.net/lists/flyrotary/List.html