X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fmailhost02.isp.att.net ([204.127.217.102] verified) by logan.com (CommuniGate Pro SMTP 5.2.0) with ESMTP id 2729019 for flyrotary@lancaironline.net; Wed, 13 Feb 2008 22:40:46 -0500 Received-SPF: pass receiver=logan.com; client-ip=204.127.217.102; envelope-from=ceengland@bellsouth.net Received: from [192.168.10.5] (adsl-147-221-23.jan.bellsouth.net[72.147.221.23]) by isp.att.net (frfwmhc02) with ESMTP id <20080214034007H0200acu84e>; Thu, 14 Feb 2008 03:40:07 +0000 X-Originating-IP: [72.147.221.23] Message-ID: <47B3B817.7050500@bellsouth.net> Date: Wed, 13 Feb 2008 21:40:07 -0600 From: Charlie England User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.11) Gecko/20071128 SeaMonkey/1.1.7 MIME-Version: 1.0 To: Rotary motors in aircraft Subject: Re: [FlyRotary] Re: wire harness adaptor References: In-Reply-To: Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit The pins in a d-sub connector are only rated at a couple of amps each, if I remember correctly. Most common displacement connectors use 26 gauge wire. Loss in the wire is a function of both diameter & length. If you're only using 2 or 3 inches of wire, relatively low duty cycle, & it's in 'free air', it would probably work ok. With a known current there are tables that will tell you if 26 gauge is enough. Remember that the tables assume continuous current, not intermittent as you'd see with injectors & ignition systems. The ribbon cable would effectively become a 'fusible link'.

According to Bob Nuckolls (Aeroelectic connection: aeroelectric-list@matronics.com), a few inches of unshielded cable will typically have minimal effect.

Or you could just cut up your tank...

Charlie
:-)

bmears9413@aol.com wrote:

This is kinda where I was afraid this would go....which is good. I was hoping for...."I know just what you need. Radio shack build a small 90 degree low profile pin connector".....I think I'll modify my tank.

Bob Mears
Supermarine Spitfire

-----Original Message-----
From: WRJJRS@aol.com
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Wed, 13 Feb 2008 12:21 am
Subject: [FlyRotary] Re: wire harness adaptor
Most Ribbon cable is unshielded. That may be something to think about.

Bill Jepson

In a message dated 2/12/2008 7:43:37 PM Pacific Standard Time, mike.lafleur@sbcglobal.net writes:

Ribbon cable can be pretty small gauge. If you use ribbon cable, try to find cable with at least the same gauge rating that Tracy recommends for his wiring harness.

Mike LaFleur

----- Original Message ----
From: Charlie England <ceengland@bellsouth.net>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Tuesday, February 12, 2008 8:05:55 PM
Subject: [FlyRotary] Re: wire harness adaptor

d-sub connector, right?

If a few inches of vinyl insulation doesn't terrify you, consider an extension made with ribbon cable & 2 displacement type connectors. Those are the type you typically see on ribbon cables inside older computers, tying all the various components together.

Charlie

Bob White wrote:

Hi Bob, The only way I can see getting the connector any tighter might be to build a short extension without backshells, then plug into that. I'm not sure how bad of an idea that would be. The first concern would be reliability since there wouldn't be any protection for the wires if the cable got pulled on. Bob W. On Tue, 12 Feb 2008 15:27:25 -0500 bmears9413@aol.com wrote: