X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Tue, 10 Mar 2009 22:36:34 -0400 Message-ID: X-Original-Return-Path: Received: from elasmtp-kukur.atl.sa.earthlink.net ([209.86.89.65] verified) by logan.com (CommuniGate Pro SMTP 5.2.13) with ESMTP id 3540586 for lml@lancaironline.net; Mon, 09 Mar 2009 14:13:40 -0400 Received-SPF: none receiver=logan.com; client-ip=209.86.89.65; envelope-from=colyncase@earthlink.net DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=dk20050327; d=earthlink.net; b=V+ZMziP7Hfw1ShkhYN1j1PuCycC3zaVDtH8h3g3LdzXTpED18dgSjSaCeDxECySg; h=Received:Message-ID:From:To:References:Subject:Date:MIME-Version:Content-Type:X-Priority:X-MSMail-Priority:X-Mailer:X-MimeOLE:X-ELNK-Trace:X-Originating-IP; Received: from [216.57.118.63] (helo=ccaselt3) by elasmtp-kukur.atl.sa.earthlink.net with esmtpa (Exim 4.67) (envelope-from ) id 1LgjyJ-00029n-SL for lml@lancaironline.net; Mon, 09 Mar 2009 14:13:04 -0400 X-Original-Message-ID: <037c01c9a0e2$b1c39dd0$6501a8c0@nvidia.com> From: "Colyn Case at earthlink" X-Original-To: "Lancair Mailing List" References: Subject: Re: [LML] LOP vs ROP Climb: Time and Fuel Burn (LIVP) X-Original-Date: Mon, 9 Mar 2009 14:13:01 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0379_01C9A0C1.2801D1F0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3138 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3198 X-ELNK-Trace: 63d5d3452847f8b1d6dd28457998182d7e972de0d01da9409d5cb0fa7a5ae76ec97ba4f54f02f98f350badd9bab72f9c350badd9bab72f9c350badd9bab72f9c X-Originating-IP: 216.57.118.63 This is a multi-part message in MIME format. ------=_NextPart_000_0379_01C9A0C1.2801D1F0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable LOP vs ROP Climb: Time and Fuel Burn (LIVP)Jeff, I think your full rich FF is (way) too low. How ROP are you at 34.2gph? I believe continental specs for full throttle (38") are 43gph. For overhaul economy it would be good to get it up there. I have mine set at 45gph for 38"/2700rpm. I don't know what temps that would give at 160knots=20 but at 140 knots the hottest cylinder is 380 and it will climb at = 2000fpm (not that I do that a lot) If you want to use those numbers it takes 5 minutes to do that climb = which would be 3.75 gallons. switch to cruise @260 knots at 16,000 and I think you burn another 1.38 = gals for a total of 5.13. ...so maybe a little less bad than you said. but somehow, a gallon and a half doesn't register compared to the build = cost, insurance, training, etc. if I'm feeling environmentally responsible I just think how much fuel I = saved by not owning a turbine.... ------=_NextPart_000_0379_01C9A0C1.2801D1F0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable LOP vs ROP Climb: Time and Fuel Burn (LIVP)
Jeff,
I think your full rich FF is (way) too=20 low.
How ROP are you at = 34.2gph?
I believe continental specs for full = throttle (38")=20 are 43gph.
For overhaul economy it would be good = to get it up=20 there.
 
I have mine set at 45gph for=20 38"/2700rpm.
I don't know what temps that would give = at 160knots=20
but at 140 knots the hottest cylinder = is 380 and it=20 will climb at 2000fpm (not that I do that a lot)
 
If you want to use those numbers it = takes 5 minutes=20 to do that climb which would be 3.75 gallons.
switch to cruise @260 knots at 16,000 = and I think=20 you burn another 1.38 gals for a total of 5.13.
...so maybe a little less bad than you=20 said.
 
but somehow, a gallon and a half = doesn't register=20 compared to the build cost, insurance, training, etc.
if I'm feeling environmentally = responsible I just=20 think how much fuel I saved by not owning a=20 turbine....
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