X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Mon, 05 Nov 2012 16:35:08 -0500 Message-ID: X-Original-Return-Path: Received: from mail-gg0-f180.google.com ([209.85.161.180] verified) by logan.com (CommuniGate Pro SMTP 6.0c2) with ESMTPS id 5863193 for lml@lancaironline.net; Mon, 05 Nov 2012 14:13:21 -0500 Received-SPF: pass receiver=logan.com; client-ip=209.85.161.180; envelope-from=bbreen@cableone.net Received: by mail-gg0-f180.google.com with SMTP id q3so1020226gge.25 for ; Mon, 05 Nov 2012 11:12:46 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=references:mime-version:in-reply-to:content-type :content-transfer-encoding:message-id:cc:x-mailer:from:subject:date :to:x-gm-message-state; bh=MqkDbCN2AK24pFqVzUb9pM4/kiF3TU2D4WbDp0Jr8Mg=; b=ZDPYLMZR0nvLf7xpSVOwuYvZwi1np8HZkHNMYm9KeTgoSOSExhmFNFINqi2Qp8sbo4 J1WlamYM1ovjgLRxT8CPB3vfShBJvcXy7AevTaGZBeSFDvNST9PGr34lUJSGYxJKbn+z yrB59Ruon7kYGjd3VHo/XnYdF5u+xotGWXWN4xONrxNR3nJMktIWgLmYgwMkRzQKvaEu gNBb4QlR0QS1vofXJpgV/fvew7UiGdJ1EaT4VsVi8Ee5gSjnUmKucRo0hTm0VQqd3ez3 L6rN1q2bdy9r8cdayYarOf0WjEAW3+WSp1VxWAGMhupPQUPBzndqVAhbVdq4hIIWsHHZ A0+Q== Received: by 10.236.115.41 with SMTP id d29mr9714279yhh.125.1352142766357; Mon, 05 Nov 2012 11:12:46 -0800 (PST) X-Original-Return-Path: Received: from [192.168.1.70] (172-3-20-168.lightspeed.nworla.sbcglobal.net. [172.3.20.168]) by mx.google.com with ESMTPS id t46sm18436038yhi.3.2012.11.05.11.12.45 (version=SSLv3 cipher=OTHER); Mon, 05 Nov 2012 11:12:45 -0800 (PST) References: Mime-Version: 1.0 (1.0) In-Reply-To: Content-Type: multipart/alternative; boundary=Apple-Mail-E2D94187-E027-4549-977D-7292C5793650 Content-Transfer-Encoding: 7bit X-Original-Message-Id: X-Original-Cc: Hogo X-Mailer: iPad Mail (10A403) From: Berni Breen Subject: Re: [LML] Re: Why is my fuel burn so high in my IV ???? X-Original-Date: Mon, 5 Nov 2012 13:12:44 -0600 X-Original-To: Lancair Mailing List X-Gm-Message-State: ALoCoQmt2XyfM8tyMZb60EE/Rm3tIAnB+RMxLKthPXABnlJpMaUr3cAOtTXsJ0/FcqLT51YLfMpN --Apple-Mail-E2D94187-E027-4549-977D-7292C5793650 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable I formerly owned a Lancair IV with a normally aspirated IO550. At the time t= hat I owned that set up I was ignorant of the whole lean of peak thing. As a= result I would fly exclusively ROP and lean CHTs to 380* (didn't worry too m= uch about EGTs), 24 squared and consistently saw 225 KTAS and 15 GPH fuel bu= rn. My friend, who also formerly owned a normally aspirated LNC4 with a Lyc= oming, flew his set up the same way as me and saw 224 KTAS and and 17 GPH fu= el burn. I cannot fathom how or why yours would be drinking fuel like it is= but I do not fancy myself on being an authority on anything. Sent from my iPad Berni Breen Bbreen@cableone.net On Nov 5, 2012, at 10:40 AM, "Kent" wrote: > Not sure about your setup... > =20 > But I have a few clients who can run their T-550=E2=80=99s and T-520s dow= n around 12 GPH.. > =20 > Shees.. Takeooff power for a Straight IO 550- is only 29 gph or so.. > =20 > One client of mine has a Cessna 421, GTSIO-520-H, and leans to 15 gph eac= h side... > =20 > Kent Felkins > Tulsa > =20 > =20 > =20 > From: Guy and Jill Foreman > Sent: Friday, November 02, 2012 6:50 AM > To: lml@lancaironline.net > Subject: [LML] Why is my fuel burn so high in my IV ???? > =20 > Reading some of the posts on the LML about IV/IVP drivers. Just wondering h= ow they are getting around 18-19 GPH at cruze power? > =20 > I have a straight IV with a TSIO-550-B. I usually fly around 10K feet, usi= ng 28in MAP, 2400 RPM, Leaning to 1550 TIT, and getting 21.5 GPH fuel burn. > =20 > What am I doing wrong? How is everyone else getting there fuel flow so muc= h lower? > =20 > Any advice would be much appreciated. > =20 > Thanks, > Guy Foreman --Apple-Mail-E2D94187-E027-4549-977D-7292C5793650 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable
I formerly owned a Lancair IV with a n= ormally aspirated IO550.  At the time that I owned that set up I was ig= norant of the whole lean of peak thing.  As a result I would fly exclus= ively ROP and lean CHTs to 380* (didn't worry too much about EGTs), 24 squar= ed and consistently saw 225 KTAS and 15 GPH fuel burn.  My friend, who a= lso formerly owned a normally aspirated LNC4 with a Lycoming, flew his set u= p the same way as me and saw 224 KTAS and and 17 GPH fuel burn.  I cann= ot fathom how or why yours would be drinking fuel like it is but I do not fa= ncy myself on being an authority on anything.

Sent from my iPa= d
Berni Breen

On Nov 5, 2012, at 10:40 AM, "Kent" <<= a href=3D"mailto:kent@tulsaconnect.com">kent@tulsaconnect.com> wrote:=

Not sure about your setup...
 
But I have a few clients who can run their T-550=E2=80=99s and T-520s&n= bsp; down=20 around 12 GPH..
 
Shees.. Takeooff power for a Straight IO 550- is only 29 gph or so..
 
One client of mine has a Cessna 421, GTSIO-520-H,  and leans to 15= gph=20 each side...
 
Kent Felkins
Tulsa
 
 
 
Sent: Friday, November 02, 2012 6:50 AM
Subject: [LML] Why is my fuel burn so high in my IV=20 ????
 
Reading some of the posts on the LML about IV/IVP drivers. J= ust=20 wondering how they are getting around 18-19 GPH at cruze power?
 I=20 have a straight IV with a TSIO-550-B. I usually fly around 10K feet, using 2= 8in=20 MAP, 2400 RPM, Leaning to 1550 TIT, and getting 21.5 GPH fuel=20 burn.
 
What am I doing wrong? How is everyone else getting there= =20 fuel flow so much lower?
 
Any advice would be much=20 appreciated.
 
Thanks,
Guy=20 Foreman
= --Apple-Mail-E2D94187-E027-4549-977D-7292C5793650--