X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Wed, 17 Aug 2011 10:08:22 -0400 Message-ID: X-Original-Return-Path: Received: from mta31.charter.net ([216.33.127.82] verified) by logan.com (CommuniGate Pro SMTP 5.4.1) with ESMTP id 5095005 for lml@lancaironline.net; Wed, 17 Aug 2011 09:59:45 -0400 Received-SPF: pass receiver=logan.com; client-ip=216.33.127.82; envelope-from=farnsworth@charter.net Received: from imp09 ([10.20.200.9]) by mta31.charter.net (InterMail vM.7.09.02.04 201-2219-117-106-20090629) with ESMTP id <20110817135910.HPJ3994.mta31.charter.net@imp09> for ; Wed, 17 Aug 2011 09:59:10 -0400 Received: from Farnsworth ([96.32.64.126]) by imp09 with smtp.charter.net id MRzA1h0032jS9wo05RzAlh; Wed, 17 Aug 2011 09:59:10 -0400 X-Authority-Analysis: v=1.1 cv=1b2X7W/SifksZeClH/haT1SUt4udqxFGF00pZw2/jJk= c=1 sm=1 a=y4KQE9exWeYA:10 a=yUnIBFQkZM0A:10 a=/tXkVGW3dowoy8Sb6KWeFg==:17 a=Ia-xEzejAAAA:8 a=OLmmUzkeAAAA:8 a=YbeStzm4AAAA:8 a=AaJQTW_8mBoAnU9ldgoA:9 a=tluXQ2gh16Qm8pjomoUA:7 a=CjuIK1q_8ugA:10 a=kHrPZqYrmFcA:10 a=Ha6xk8KqzfcA:10 a=Y2Wmqe1_jesA:10 a=EzXvWhQp4_cA:10 a=SSmOFEACAAAA:8 a=pIrF9o-HyGbaeHGApS0A:9 a=-y8gM1h7G3Y0-u4DIy4A:7 a=gKO2Hq4RSVkA:10 a=hTZeC7Yk6K0A:10 a=/tXkVGW3dowoy8Sb6KWeFg==:117 From: "Karen Farnsworth" X-Original-To: "'Lancair Mailing List'" References: Subject: RE: [LML] How do I run lean of peak? X-Original-Date: Wed, 17 Aug 2011 09:59:37 -0400 X-Original-Message-ID: <264AE23D3E7645159F6898AD71C88AA3@Farnsworth> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0619_01CC5CC4.5FB4C690" X-Mailer: Microsoft Office Outlook 11 Thread-Index: Acxc0upCWWKlwVRPRqS2cvHB5Yf68gAEBQcg In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.6109 This is a multi-part message in MIME format. ------=_NextPart_000_0619_01CC5CC4.5FB4C690 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Dico, Why do you think they call it "the big pull"? If you do a gradual/slow pull of the mixture control your engine will be in the area of peak internal pressure/temperature for some time before they start to drop. Also the turbine inlet temperature can go very high. I pull my mixture out; no half a turn a second. If I pull a little too far, no big deal, now I can do the fine tuning of the mixture control. I would suggest you take the GAMI course. Lynn Farnsworth Super Legacy TSIO-550 Powered _____ From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of Dico Reijers Sent: Wednesday, August 17, 2011 07:43 To: lml@lancaironline.net Subject: [LML] How do I run lean of peak? Hi All, I am new to LOP operations and am looking for some help. I spoke with some IV-P owners in oshkosh about this and just wanted to get some more info and clarification. I understand that i should run ROP until altitude, then i can run LOP. The CHTs are supposed to be 390 or less and the TIT 1650 or less. So since i have not made the "big pull" before, i would like to know how exactly is the best way. Do i set the cruise power, say 30" and 2500rpm, then slowly turn out the mixture... Watch the temps rise ( how hot does it get before it starts to go down again?) and then keep leaning until i get the TIT back to 1650 and CHT to 380ish or below? How fast should the leaning happen? I understand i dont want to get the chts and tits really hot, so i presume i should be leaning relatively quickly (half a mixture turn per second?) Has someone ever made a little video with their point and shoot camera of this process while up in the air? This would be handy for someone new to running LOP. Thanks all, Dico -- Regards, Dico Reijers InternetWorks Ltd. 300 University Avenue Charlottetown PE, C1A 4M4 902-892-4671 (T) 888-368-9484 (F) www.internetworks.ca www.apartmentspei.com ------=_NextPart_000_0619_01CC5CC4.5FB4C690 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Dico,

 

Why do you think they call it = “the big pull”? If you do a gradual/slow pull of the mixture control your = engine will be in

 the area of peak internal = pressure/temperature for some time before they start to drop. Also the turbine inlet = temperature can go very high.

 

I pull my mixture out; no half a = turn a second. If I pull a little too far, no big deal, now I can do the fine tuning of = the mixture control.

 

I would suggest you take the GAMI = course.

 

Lynn = Farnsworth

Super = Legacy

TSIO-550 = Powered

 

 

From: = Lancair Mailing List = [mailto:lml@lancaironline.net] On Behalf Of Dico Reijers
Sent: Wednesday, August = 17, 2011 07:43
To: = lml@lancaironline.net
Subject: [LML] How do I = run lean of peak?

 

Hi All,

I am new to LOP operations and am looking for some help.  I spoke = with some IV-P owners in oshkosh about this and just wanted to get some more info and clarification.

I understand that i should run ROP until altitude, then i can run LOP. = The CHTs are supposed to be 390 or less and the TIT 1650 or less. So since i have = not made the "big pull" before, i would like to know how exactly = is the best way.  Do i set the cruise power, say 30" and 2500rpm, = then slowly turn out the mixture... Watch the temps rise ( how hot does it = get before it starts to go down again?) and then keep leaning until i get = the TIT back to 1650 and CHT to 380ish or below?  How fast should the = leaning happen? I understand i dont want to get the chts and tits really hot, so = i presume i should be leaning relatively quickly (half a mixture turn per second?)

Has someone ever made a little video with their point and shoot camera = of this process while up in the air?  This would be handy for someone new = to running LOP.

Thanks all,

Dico

--
Regards,

Dico Reijers

InternetWorks Ltd.
300 University = Avenue
Charlottetown
PE, = C1A 4M4

902-892-4671 (T)
888-368-9484 (F)

www.internetworks.ca
www.apartmentspei.com

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