X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Wed, 24 May 2006 19:43:34 -0400 Message-ID: X-Original-Return-Path: Received: from [69.31.192.14] (HELO platinum.ca) by logan.com (CommuniGate Pro SMTP 5.0.9) with ESMTP id 1126730 for lml@lancaironline.net; Wed, 24 May 2006 19:35:17 -0400 Received-SPF: none receiver=logan.com; client-ip=69.31.192.14; envelope-from=bbriton@platinum.ca Received: from barney [69.31.194.93] by platinum.ca with ESMTP (SMTPD32-8.15) id AD8177C700DE; Wed, 24 May 2006 17:34:25 -0600 X-Original-Message-ID: <004a01c67f8a$96c20570$6701a8c0@barney> Reply-To: "Barney Briton" From: "Barney Briton" X-Original-To: "Lancair Mailing List" References: Subject: Re: [LML] turbines over temps & rpm X-Original-Date: Wed, 24 May 2006 17:34:21 -0600 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0047_01C67F58.4AF8B260" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2741.2600 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2742.200 X-Declude-Sender: bbriton@platinum.ca [69.31.194.93] ISP: Platinum Communications Corporation (support@platinum.ca) This is a multi-part message in MIME format. ------=_NextPart_000_0047_01C67F58.4AF8B260 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Bill I have not heard of any test pilot over temping or over revving Walters. = I do know that the new TSLM that is installed on most Walters now = records engine parameters. The problem with these records is that there = seems to be spikes in the system that it also records. These are split = second spikes that are errors but it records them anyways due to the = accuracy of the system. I did notice that on my turbine we had to put = quite a few capacitors in the wiring to reduce these spikes that were = occurring. We noticed things like hydraulic pump actuation causing ITT = spikes and various other power draws doing the same thing until we put = these capacitor "filters" in the wiring to get rid of these power spikes = and false readings. I believe that this may have something to do with = these rumors as we were talking about these issues with the TSLM at the = Sebring annual recurrent training course. These power spikes effected = quite a few of my engine readings until they were rectified. The Walter = ITT readings are always bouncing around anyways and are never as steady = as what you would see from a Pratt. Barney Britton IVPT C-GPOA ----- Original Message -----=20 From: reddog=20 To: Lancair Mailing List=20 Sent: Wednesday, May 24, 2006 5:06 PM Subject: [LML] turbines over temps & rpm=20 Can anyone on the list enlighten me to which test pilot is over = temping and over revving the Walters on the east coast -rumor . Also a = test pilot gear up landing in Florida several mounts back -would like = details on these if known . This is something that seems to be a rumor = but would like a clarification Bill Maddox=20 ------=_NextPart_000_0047_01C67F58.4AF8B260 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Bill
 
I have not heard of any test pilot over = temping or=20 over revving Walters.  I do know that the new TSLM that is = installed on=20 most Walters now records engine parameters.  The problem with these = records=20 is that there seems to be spikes in the system that it also = records.  These=20 are split second spikes that are errors but it records them anyways due = to the=20 accuracy of the system.  I did notice that on my turbine we had to = put=20 quite a few capacitors in the wiring to reduce these spikes that were=20 occurring.  We noticed things like hydraulic pump actuation causing = ITT=20 spikes and various other power draws doing the same thing until we put = these=20 capacitor "filters" in the wiring to get rid of these power spikes and = false=20 readings.  I believe that this may have something to do with these = rumors=20 as we were talking about these issues with the TSLM at the Sebring = annual=20 recurrent training course.  These power spikes effected quite a few = of my=20 engine readings until they were rectified.  The Walter ITT readings = are=20 always bouncing around anyways and are never as steady as what you would = see=20 from a Pratt.
 
Barney Britton
IVPT C-GPOA
----- Original Message -----
From:=20 reddog=20
Sent: Wednesday, May 24, 2006 = 5:06=20 PM
Subject: [LML] turbines over = temps &=20 rpm

Can anyone on the list = enlighten=20 me to which test pilot is over temping and over revving the Walters on = the=20 east coast =96rumor . Also a test pilot gear up landing  in = Florida = several mounts=20 back =96would like details on these if known . This is something that = seems to=20 be  a rumor but would like a clarification  Bill Maddox=20

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