X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Fri, 16 Oct 2009 16:03:45 -0400 Message-ID: X-Original-Return-Path: Received: from betsy.gendns5.com ([65.254.38.234] verified) by logan.com (CommuniGate Pro SMTP 5.2.16) with ESMTPS id 3888197 for lml@lancaironline.net; Fri, 16 Oct 2009 11:09:12 -0400 Received-SPF: none receiver=logan.com; client-ip=65.254.38.234; envelope-from=paul@tbm700.com Received: from s01060018f83ecf6d.cg.shawcable.net ([70.72.197.235]:57814 helo=[192.168.3.102]) by betsy.gendns5.com with esmtpsa (TLSv1:AES128-SHA:128) (Exim 4.69) (envelope-from ) id 1MyoPy-0005kh-NG for lml@lancaironline.net; Fri, 16 Oct 2009 11:08:35 -0400 From: paul miller Mime-Version: 1.0 (Apple Message framework v1076) Content-Type: multipart/alternative; boundary=Apple-Mail-35-373121012 Subject: Re: [LML] TIT vs. EGT, strange but true X-Original-Date: Fri, 16 Oct 2009 09:08:31 -0600 In-Reply-To: X-Original-To: "Lancair Mailing List" References: X-Original-Message-Id: <98328D91-CAFE-4C49-B0B4-C65908EDA475@tbm700.com> X-Mailer: Apple Mail (2.1076) X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - betsy.gendns5.com X-AntiAbuse: Original Domain - lancaironline.net X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - tbm700.com --Apple-Mail-35-373121012 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=us-ascii; format=flowed; delsp=yes Steve: Can we look at FF for the trip in detail? The reason I ask is that the EGTs for each cylinder slope upwards as well and it is tough to see the actual FF. On 2009-10-14, at 8:22 PM, Steve Richard wrote: > I have noticed a strange but reproducible issue with my TIT's (see > EIS issues.pdf). In cruise and with a steady state power setting > (EGT's, fuel flow, fuel pressure, man. pressure, rpm all constant), > the TIT's climb over 50 degree F over a 1 hour period. They > eventually reach 1650 degrees F and the alarms start to go off. I > richen the mixture to keep the temperature below the recommend > 1650. Once the mixture is richened and the TIT's fall below 1650, > the TIT's do not continue to rise for the remainder of the flight. > > I would like to start flying LOP but the TIT rise makes the issue a > little confusing. > > Anyone want to take a shot at this mystery? --Apple-Mail-35-373121012 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=us-ascii

I have = noticed a strange but reproducible issue with my TIT's (see EIS = issues.pdf). In cruise and with a steady state power = setting (EGT's, fuel flow, fuel pressure, man. pressure, rpm all = constant), the TIT's climb over 50 degree F over a 1 hour = period. They eventually reach 1650 degrees F and the alarms start to go = off. I richen the mixture to keep the temperature below the = recommend 1650. Once the mixture is richened and the TIT's = fall below 1650, the TIT's do not continue to rise for the = remainder of the flight.

I would like = to start flying LOP = but the TIT rise makes the issue a little = confusing.

Anyone want to take = a shot at this = mystery?