X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [64.4.51.77] (HELO hotmail.com) by logan.com (CommuniGate Pro SMTP 4.3c5) with ESMTP id 913949 for flyrotary@lancaironline.net; Mon, 25 Apr 2005 12:31:31 -0400 Received-SPF: pass receiver=logan.com; client-ip=64.4.51.77; envelope-from=lors01@msn.com Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Mon, 25 Apr 2005 09:30:46 -0700 Message-ID: Received: from 64.4.51.200 by BAY107-DAV5.phx.gbl with DAV; Mon, 25 Apr 2005 16:30:46 +0000 X-Originating-IP: [64.4.51.200] X-Originating-Email: [lors01@msn.com] X-Sender: lors01@msn.com From: "Tracy Crook" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] EM-2 fuel flow question Date: Mon, 25 Apr 2005 12:30:43 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_016B_01C54992.99894450" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: MSN 9 X-MimeOLE: Produced By MSN MimeOLE V9.10.0011.1703 Seal-Send-Time: Mon, 25 Apr 2005 12:30:43 -0400 X-OriginalArrivalTime: 25 Apr 2005 16:30:46.0796 (UTC) FILETIME=[224734C0:01C549B4] This is a multi-part message in MIME format. ------=_NextPart_000_016B_01C54992.99894450 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MessageVery odd. There should be no fuel flow when not running because = the EM2 is looking at the injector on time and that should be zero of = course. Noise on injector line maybe? In any case, I agree that you = should ignore until update chip is installed. Many many updates & = improvements since that first version which you have. Tracy (watching water on runway slowly going down) Subject: [FlyRotary] EM-2 fuel flow question Tracy, and all, I finally decided to try to calibrate the fuel flow reading on my = EM-2, and don't quite understand what I'm seeing. I zeroed the fuel = reading the last time I put fuel in the plane, but yesterday, when I put = 10 gallons in, the EM-2 said 20.7 had been used. I spent some time = fiddling with alarm limits, and then noticed that the fuel read 22.4. = Since the engine isn't running, this represents poor fuel economy :-)=20 I also noticed that the EM-2 always seems to read .3 gph when the = engine is off, but even that wouldn't account for the almost two gallons = in the few minutes it took to set the alarm limits. I tried turning the = EC-2 on, and then off, to see if that changed the reading, but it stayed = at .3 gph. I don't think I can change the sensor offset on this one :-) Unless there's a simple solution to this, I'll just ignore it, and = defer the fuel flow calibration until the new chips arrive. =20 Cheers, Rusty (anyone want a Sonerai-II) ------=_NextPart_000_016B_01C54992.99894450 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Message
Very odd.  There should be no fuel flow when not running = because the=20 EM2 is looking at the injector on time and that should be zero of = course. =20  Noise on injector line maybe?  In any case, I agree that you = should=20 ignore until update chip is installed.  Many many updates &=20 improvements since that first version which you have.
 
Tracy (watching water on runway slowly going down)
Subject: [FlyRotary] EM-2 fuel = flow=20 question

Tracy, and=20 all,
 
I finally = decided to try=20 to calibrate the fuel flow reading on my EM-2, and don't quite = understand what=20 I'm seeing.   I zeroed the fuel reading the last time I put = fuel in=20 the plane, but yesterday, when I put 10 gallons in, the EM-2 said 20.7 = had=20 been used.  I spent some time fiddling with alarm = limits, and=20 then noticed that the fuel read 22.4.   Since the = engine isn't=20 running, this represents poor fuel economy = :-) 
 
I also = noticed that=20 the EM-2 always seems to read .3 gph when the engine is off, but even = that=20 wouldn't account for the almost two gallons in the few minutes it took = to set=20 the alarm limits.  I tried turning the EC-2 on, and then = off, to see=20 if that changed the reading, but it stayed at .3 gph.  I don't = think I=20 can change the sensor offset on this one :-)
 
Unless = there's a simple=20 solution to this, I'll just ignore it, and defer the fuel flow=20 calibration until the new chips = arrive.   
 
Cheers,
Rusty (anyone = want a=20 Sonerai-II)
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