X-Virus-Scanned: clean according to Sophos on Logan.com X-SpamCatcher-Score: 2 [X] Return-Path: Sender: To: lml@lancaironline.net Date: Mon, 26 Mar 2007 12:53:35 -0400 Message-ID: X-Original-Return-Path: Received: from [69.146.254.20] (HELO arilabs.net) by logan.com (CommuniGate Pro SMTP 5.1.7) with ESMTP id 1943374 for lml@lancaironline.net; Mon, 26 Mar 2007 07:58:38 -0400 Received-SPF: none receiver=logan.com; client-ip=69.146.254.20; envelope-from=Kevin@arilabs.net Subject: RE: [LML] Re: Re Batteries X-Original-Date: Mon, 26 Mar 2007 04:57:50 -0700 X-Original-Message-ID: <7141427652BB3049A7DBF1084B67805B0F7E20@penumbra.arilabs.net> X-MS-Has-Attach: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C76F9D.FA1E32F3" X-MS-TNEF-Correlator: Thread-Topic: [LML] Re: Re Batteries Thread-Index: Acdu/occpSbn2tyNSCGLJwyS/Pmh6QAGqZjA Content-class: urn:content-classes:message From: "Kevin Stallard" X-MimeOLE: Produced By Microsoft Exchange V6.5 X-Original-To: "Lancair Mailing List" This is a multi-part message in MIME format. ------_=_NextPart_001_01C76F9D.FA1E32F3 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable =20 "5 gallons of fuel will not help. To be effective in balancing CG, Moment is computed as Weight x moment Arm. With fuel, the moment Arm is near the CG and thus the weight of the fuel is not helpful from a CG standpoint. In fact, my understanding is that the fuel is generally designed to be near the CG so that the CG doesn't change (much) as fuel is burned." =20 Rick, =20 Forgive me for interjecting here, and maybe I misread what you meant but I don't think Brent meant 5 gals of fuel for CG assistance, I think he just would rather be able to have an additional 5 gallons of fuel somewhere instead of batteries, gizmos or whatever. Watching our ounces means we can put more gas in our planes, which means the engine keeps running longer and can therefore keep us cooler on a hot day... =20 Kevin =20 =20 =20 =20 ------_=_NextPart_001_01C76F9D.FA1E32F3 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

“5 gallons of fuel will not help. To be effective in balancing CG, Moment is computed as = Weight x moment Arm. With fuel, the moment Arm is near the CG and thus the = weight of the fuel is not helpful from a CG standpoint. In fact, my understanding is that the fuel is generally designed to be near the CG = so that the CG doesn’t change (much) as fuel is = burned.”

Rick,

Forgive me for interjecting here, = and maybe I misread what you meant but I don’t think Brent meant 5 = gals of fuel for CG assistance, I think he just would rather be able to have an additional 5 gallons of fuel somewhere instead of batteries, gizmos or = whatever. Watching our ounces means we can put more gas in our planes, which means = the engine keeps running longer and can therefore keep us cooler on a hot = day…

Kevin

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