X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Wed, 27 Jun 2007 23:51:13 -0400 Message-ID: X-Original-Return-Path: Received: from pop-sarus.atl.sa.earthlink.net ([207.69.195.72] verified) by logan.com (CommuniGate Pro SMTP 5.1.10) with ESMTP id 2144551 for lml@lancaironline.net; Wed, 27 Jun 2007 21:46:45 -0400 Received-SPF: none receiver=logan.com; client-ip=207.69.195.72; envelope-from=pbricker@earthlink.net Received: from user-vcaurii.dsl.mindspring.com ([216.175.110.82] helo=paulrzm5oth3zt) by pop-sarus.atl.sa.earthlink.net with esmtp (Exim 3.36 #1) id 1I3j5F-0000eD-00 for lml@lancaironline.net; Wed, 27 Jun 2007 21:46:09 -0400 From: "Paul Bricker" X-Original-To: "'Lancair Mailing List'" References: Subject: RE: [LML] Re: Wt & Bal question X-Original-Date: Wed, 27 Jun 2007 18:46:04 -0700 X-Original-Message-ID: <005901c7b926$174433f0$6601a8c0@paulrzm5oth3zt> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_005A_01C7B8EB.6AE55BF0" X-Mailer: Microsoft Office Outlook 11 Thread-Index: Ace3OYQPRsIzKslPTI2vA+DiJyjODgB66Rvg X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3138 In-Reply-To: This is a multi-part message in MIME format. ------=_NextPart_000_005A_01C7B8EB.6AE55BF0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Craig, I don't know if you got an answer to your question, so if this is redundant just trash it. The for W&B purposes, the weight shows up where the weight is, independent of how it is supported. Therefore, for you case, the weight is at 85 inches. All the mounting methods does is drive the forces on the mounting structure. Again for the case you gave there is a 4.16 ft-lb torque about the front panel when under no acceleration except gravity. The will change as you accererate in the up/down driection. A three g climb (vs. 1 g static load) will increas the torque to 12.5 ft-lbs. Paul Bricker N63PB LNCE _____ From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of Craig Berland Sent: Monday, June 25, 2007 8:00 AM To: lml@lancaironline.net Subject: [LML] Re: Wt & Bal question Where does the weight show up? At the FS of the panel, or at the center of mass of the radio? Say you had a 10 inch long, 10 lb radio and it was installed in a panel at FS 90. Will the weight show up at FS 90 or at FS 85? FS 85 Craig Berland ------=_NextPart_000_005A_01C7B8EB.6AE55BF0 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable [LML] Re: Wt & Bal question

Craig,

 

I don’t know if you got an = answer to your question, so if this is redundant just trash = it.

 

The for W&B purposes, the = weight shows up where the weight is, independent of how it is supported. Therefore, = for you case, the weight is at 85 inches.

 

All the mounting methods does is = drive the forces on the mounting structure. Again for the case you gave there is a = 4.16 ft-lb torque about the front panel when under no acceleration except = gravity. The will change as you accererate in the up/down driection. A three g = climb (vs. 1 g static load) will increas the torque to 12.5 ft-lbs. =

 

Paul = Bricker

N63PB

LNCE

 

From: = Lancair Mailing List = [mailto:lml@lancaironline.net] On Behalf Of Craig Berland
Sent: Monday, June 25, = 2007 8:00 AM
To: = lml@lancaironline.net
Subject: [LML] Re: Wt = & Bal question

 

 

Where does the weight show up?  At the FS of the panel, or at the =
center of mass of the radio?
Say you had a 10 inch long, 10 lb radio and it was installed in a =
panel at FS 90.  Will the weight show up at FS 90 or at FS = 85?

FS 85
Craig Berland

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