X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Thu, 18 Aug 2011 07:41:20 -0400 Message-ID: X-Original-Return-Path: Received: from smtp114.dfw.emailsrvr.com ([67.192.241.114] verified) by logan.com (CommuniGate Pro SMTP 5.4.1) with ESMTPS id 5095472 for lml@lancaironline.net; Wed, 17 Aug 2011 17:34:36 -0400 Received-SPF: none receiver=logan.com; client-ip=67.192.241.114; envelope-from=walter@advancedpilot.com Received: from localhost (localhost.localdomain [127.0.0.1]) by smtp11.relay.dfw1a.emailsrvr.com (SMTP Server) with ESMTP id D4BACD04B8 for ; Wed, 17 Aug 2011 17:34:00 -0400 (EDT) X-Virus-Scanned: OK Received: by smtp11.relay.dfw1a.emailsrvr.com (Authenticated sender: walter-AT-advancedpilot.com) with ESMTPSA id A58BED0473 for ; Wed, 17 Aug 2011 17:33:56 -0400 (EDT) From: Walter Atkinson Mime-Version: 1.0 (Apple Message framework v1084) Content-Type: multipart/alternative; boundary=Apple-Mail-1-302183470 Subject: How do I run lean of peak? X-Original-Date: Wed, 17 Aug 2011 15:33:52 -0600 In-Reply-To: X-Original-To: "Lancair Mailing List" References: X-Original-Message-Id: <6AAAEC22-9ADE-45B9-8F18-EFC2B3355BBB@advancedpilot.com> X-Mailer: Apple Mail (2.1084) --Apple-Mail-1-302183470 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=windows-1252 If you operate your engine ROP at high power settings you have a much = greater chance of damaging your engine than by anything you might do = LOP. The next Live APS class is October 7-9. Walter Atkinson Advanced Pilot Seminars On Aug 17, 2011, at 8:08 AM, Jay Phillips wrote: I strongly recommend that you learn to operate your engine LOP by first = taking the class from Advanced Pilot Seminars (www.advancedpilot.com) . = You will not only learn the =93how=94 of LOP operation, but also the = =93why=94. If you simply operate from a formula without understanding = how the engine is operating, it is possible to damage your engine by = running LOP. =20 They offer an online class which I took shortly after purchasing my = Legacy. It was one of the best aviation purchases I have made. =20 Jay Phillips =20 From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of = Dico Reijers Sent: Wednesday, August 17, 2011 4:43 AM To: lml@lancaironline.net Subject: [LML] How do I run lean of peak? =20 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 --=20 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 --Apple-Mail-1-302183470 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=windows-1252 If you operate your engine ROP at high power = settings you have a much greater chance of damaging your engine than by = anything you might do LOP.

The next Live APS class is = October 7-9.

Walter Atkinson
Advanced = Pilot Seminars


On Aug 17, 2011, = at 8:08 AM, Jay Phillips wrote:

I = strongly recommend that you learn to operate your engine LOP by first = taking the class from Advanced Pilot Seminars (www.advancedpilot.com) . You will not = only learn the =93how=94 of LOP operation, but also the =93why=94. If = you simply operate from a formula without understanding how the engine = is operating, it is possible to damage your engine by running = LOP.
They = offer an online class which I took shortly after purchasing my Legacy. = It was one of the best aviation purchases I have = made.
Jay = Phillips
From: Lancair Mailing List = [mailto:lml@lancaironline.net] On Behalf Of Dico = Reijers
Sent: Wednesday, August 17, 2011 = 4:43 AM
To:  [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)