X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from elasmtp-junco.atl.sa.earthlink.net ([209.86.89.63] verified) by logan.com (CommuniGate Pro SMTP 6.0.9e) with ESMTP id 7196925 for lml@lancaironline.net; Tue, 07 Oct 2014 21:11:35 -0400 Received-SPF: none receiver=logan.com; client-ip=209.86.89.63; envelope-from=colyncase@earthlink.net DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=dk20050327; d=earthlink.net; b=CMvtDKpudx6motjijDKinYcADdj5ILN3x+/VV389S2BAIXR2J0FO8TOgwEVIpeth; h=Received:From:Mime-Version:Content-Type:Subject:Date:In-Reply-To:To:References:Message-Id:X-Mailer:X-ELNK-Trace:X-Originating-IP; Received: from [70.105.242.228] (helo=[192.168.1.24]) by elasmtp-junco.atl.sa.earthlink.net with esmtpa (Exim 4.67) (envelope-from ) id 1XbfmN-0001I1-5M for lml@lancaironline.net; Tue, 07 Oct 2014 21:10:59 -0400 From: Colyn Case Mime-Version: 1.0 (Apple Message framework v1085) Content-Type: multipart/alternative; boundary=Apple-Mail-173-631761576 Subject: Re: [LML] LNC4 PROFILE Date: Tue, 7 Oct 2014 21:10:58 -0400 In-Reply-To: To: "Lancair Mailing List" References: Message-Id: X-Mailer: Apple Mail (2.1085) X-ELNK-Trace: 63d5d3452847f8b1d6dd28457998182d7e972de0d01da940860e5ead53d929214b2329b05eb25a3e350badd9bab72f9c350badd9bab72f9c350badd9bab72f9c X-Originating-IP: 70.105.242.228 --Apple-Mail-173-631761576 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii On a IVP 90% power climb would be over 40gph. I don't know why you would use 90% power though. The fuel pump = provides extra fuel at 100% and max rpm gives you effectively later = timing, which means lower pressures in the cylinders. LOP cruise at 31" is closer to 18gph On Oct 7, 2014, at 8:56 AM, Carl Scheid wrote: A profile for an LIVP that might be used in flight planning software was = determined from a spread sheet performance model. The following profile = was based on the indicated conditions: FLIGHT CONDITIONS - TSIO 550 G, LIVP, 3100 LB CLIMB 90% POWER AT 145 KIAS CRUISE 22000 ISA FT AT 165 KIAS DESCEND 1000 FT/MIN AT 165 KIAS FLIGHT LOG PROFILE CLIMB 1066 FT/MIN = 26.9 GPH 176 KTAS CRUISE 75% POWER = 16.0 GPH 234 KTAS DESCEND 1000 FT/MIN 9.3 = GPH 206 KTAS =20 Since my LIV has an IO 550 G, I have no way to check the flight log fuel = burn and flight time. I am interested in hearing about any LIVP profiles = that do an acceptable job of predicting time and fuel burn. --Apple-Mail-173-631761576 Content-Transfer-Encoding: 7bit Content-Type: text/html; charset=us-ascii On a IVP 90% power climb would be over 40gph.
I don't know why you would use 90% power though.   The fuel pump provides extra fuel at 100% and max rpm gives you effectively later timing, which means lower pressures in the cylinders.
LOP cruise at 31" is closer to 18gph

On Oct 7, 2014, at 8:56 AM, Carl Scheid wrote:

A profile for an LIVP that might be used in flight planning software was determined from a spread sheet performance model. The following profile was based on the indicated conditions:

                FLIGHT CONDITIONS - TSIO 550 G,  LIVP, 3100 LB
CLIMB                   90% POWER       AT 145 KIAS
CRUISE                 22000 ISA FT       AT 165 KIAS
DESCEND             1000 FT/MIN      AT 165 KIAS
                FLIGHT LOG PROFILE
                                CLIMB                   1066 FT/MIN      26.9 GPH              176 KTAS
                                CRUISE                 75% POWER       16.0 GPH              234 KTAS
                                DESCEND             1000 FT/MIN      9.3 GPH                206 KTAS

 

Since my LIV has an IO 550 G, I have no way to check the flight log fuel burn and flight time. I am interested in hearing about any LIVP profiles that do an acceptable job of predicting time and fuel burn.

--Apple-Mail-173-631761576--