X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml Date: Wed, 13 Sep 2006 09:14:08 -0400 Message-ID: X-Original-Return-Path: Received: from sccrmhc14.comcast.net ([63.240.77.84] verified) by logan.com (CommuniGate Pro SMTP 5.1c.4) with ESMTP id 1400046 for lml@lancaironline.net; Tue, 12 Sep 2006 19:02:20 -0400 Received-SPF: none receiver=logan.com; client-ip=63.240.77.84; envelope-from=bjburr@mwheli.com Received: from mountain0676a7 (c-24-10-172-111.hsd1.ut.comcast.net[24.10.172.111]) by comcast.net (sccrmhc14) with SMTP id <2006091223013801400chdg9e>; Tue, 12 Sep 2006 23:01:38 +0000 From: "Bryan Burr" X-Original-To: "'Lancair Mailing List'" Subject: RE: [LML] Backfires LOP X-Original-Date: Tue, 12 Sep 2006 17:01:38 -0600 X-Original-Message-ID: <001301c6d6bf$67cf1500$0400a8c0@mountain0676a7> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0014_01C6D68D.1D34A500" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.2627 In-Reply-To: Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2962 This is a multi-part message in MIME format. ------=_NextPart_000_0014_01C6D68D.1D34A500 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To me it seems like you are running a little rich. I have the same engine and prop and if I run 50 degrees cool of peak (TIT) I have the following: RPM 2400 MP 30" EGT 1550 TIT 1625 Fuel Flow 17.0 Press. Alt 15,000 CHT (Hottest) 375 Bryan Burr N132BB LNCE -----Original Message----- From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of phil s Sent: Tuesday, September 12, 2006 4:56 PM To: Lancair Mailing List Subject: [LML] Backfires LOP Anyone had experience with this? Pilot flying our IVP (TSIO550E3B with 4 blade MT) and reports: "Had backfires(?) couple of nights back. Was running lean of peak with temps 1590 at FL150, around -15C, light rain, 29Hg 2500rpm . Happened twice so went rich of peak for remainder of flight with no problems. Any reason come to mind?" Be grateful for any thoughts Phil Sexton Melbourne ------=_NextPart_000_0014_01C6D68D.1D34A500 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Backfires LOP

To me it seems like you are running = a little rich.  I have the = same engine and prop and if I run 50 degrees cool of peak (TIT) I have the = following:

 

RPM = 2400

MP = 30”

EGT = 1550

TIT = 1625

Fuel Flow = 17.0

Press. Alt 15,000

CHT (Hottest) = 375

 

Bryan = Burr

N132BB

LNCE

 

 

-----Original = Message-----
From: Lancair Mailing = List [mailto:lml@lancaironline.net] On = Behalf Of phil s
Sent: Tuesday, September = 12, 2006 4:56 PM
To: Lancair Mailing = List
Subject: [LML] Backfires = LOP

 

 


Anyone had experience with this?
Pilot flying our IVP (TSIO550E3B with 4 blade MT) and reports:
"Had backfires(?) couple of nights back. Was running lean of peak = with  
temps 1590 at FL150, around -15C, light rain,  29Hg 2500rpm .
Happened twice so went rich of peak for remainder of flight with no =  
problems. Any reason come to mind?"
Be grateful for any thoughts

Phil Sexton
Melbourne

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