Return-Path: Received: from [65.54.168.113] (HELO hotmail.com) by logan.com (CommuniGate Pro SMTP 4.2.8) with ESMTP id 657971 for flyrotary@lancaironline.net; Thu, 03 Feb 2005 18:34:33 -0500 Received-SPF: pass receiver=logan.com; client-ip=65.54.168.113; envelope-from=lors01@msn.com Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Thu, 3 Feb 2005 15:34:02 -0800 Message-ID: Received: from 4.171.174.62 by BAY3-DAV9.phx.gbl with DAV; Thu, 03 Feb 2005 23:33:01 +0000 X-Originating-IP: [4.171.174.62] X-Originating-Email: [lors01@msn.com] X-Sender: lors01@msn.com From: "Tracy Crook" To: "Rotary motors in aircraft" , References: Subject: Re: [FlyRotary] CCI sandwich mounts.. torque values.. Date: Thu, 3 Feb 2005 18:33:00 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0043_01C50A1E.C9FD8960" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: MSN 9 X-MimeOLE: Produced By MSN MimeOLE V9.10.0009.2900 Seal-Send-Time: Thu, 3 Feb 2005 18:33:00 -0500 X-OriginalArrivalTime: 03 Feb 2005 23:34:02.0628 (UTC) FILETIME=[D7E9E440:01C50A48] This is a multi-part message in MIME format. ------=_NextPart_000_0043_01C50A1E.C9FD8960 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Sanity check time. The bolts in pan are 6mm, not 3/8". =20 Tracy ----- Original Message -----=20 From: David Staten=20 To: Rotary motors in aircraft=20 Sent: Thursday, February 03, 2005 5:14 PM Subject: [FlyRotary] CCI sandwich mounts.. torque values.. The oil pan "sandwich" mounts for the rotary take 3/8" bolts.. Chris=20 and I had it temporarily mounted using hardware store parts, but we=20 elected to use AN bolts to fit it up for the final/working attachment. = 3/8 translates to AN6... and we are looking at about AN6-37 for the=20 bottom and AN6-34 for the top mounting holes (this takes into account=20 the plywood aft bulkhead and stainless overlay/firewall, with some=20 fender washers to distribute the force. =20 I don't have the CCI paperwork handy.. is there a recommended fastener = and torque value for use with those mounts? =20 What is an appropriate torque value with AN6 bolts/nuts? I have one=20 reference on hand and want to compare notes. I have the "aviation=20 mechanic handbook" 4th ed by Dale Crane that lists two different = torque=20 values: one is "nuts tension torque limits" and is 160-190 INCH = pounds,=20 but it also lists a "nut shear torque limit" as well of 95-110 INCH = pounds. =20 Rather than make a guess here, would someone with the knowledge spell=20 out for me the difference between those two categories? =20 Dave Staten >> Homepage: http://www.flyrotary.com/ >> Archive: = http://lancaironline.net/lists/flyrotary/List.html ------=_NextPart_000_0043_01C50A1E.C9FD8960 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Sanity check time.  The bolts in pan are 6mm, not 3/8".  =
 
Tracy
----- Original Message -----
From: David=20 Staten
To: Rotary motors in = aircraft
Sent: Thursday, February 03, = 2005 5:14=20 PM
Subject: [FlyRotary] CCI = sandwich=20 mounts.. torque values..

The oil pan "sandwich" mounts  for the rotary take = 3/8"=20 bolts.. Chris
and I had it temporarily mounted using hardware = store parts,=20 but we
elected to use AN bolts to fit it up for the final/working=20 attachment.
3/8 translates to AN6... and we are looking at about = AN6-37=20 for the
bottom and AN6-34 for the top mounting holes (this takes = into=20 account
the plywood aft bulkhead and stainless overlay/firewall, = with some=20
fender washers to distribute the force.
 
I don't have = the CCI=20 paperwork handy.. is there a recommended fastener
and torque value = for use=20 with those mounts?
 
What is an appropriate torque value = with AN6=20 bolts/nuts? I have one
reference on hand and want to compare = notes. I have=20 the "aviation
mechanic handbook" 4th ed by Dale Crane that lists = two=20 different torque
values: one is "nuts tension torque limits" and = is=20 160-190 INCH pounds,
but it also lists a "nut shear torque limit" = as well=20 of 95-110 INCH pounds.
 
Rather than make a guess here, = would=20 someone with the knowledge spell
out for me the difference between = those=20 two categories?
 
Dave Staten


>> =20 Homepage:  http://www.flyrotary.com/
>&= gt; =20 Archive:   http://lancai= ronline.net/lists/flyrotary/List.html
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