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Date: Wed, 16 May 2007 16:13:36 -0600
From: Bob White <rlwhite@comcast.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: Gold Plated Pins
Message-Id: <20070516161336.e5eb1e22.rlwhite@comcast.net>
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On Wed, 16 May 2007 17:35:19 -0400
"Ed Anderson" <eanderson@carolina.rr.com> wrote:

> Thanks, Bob.
> 
> I went with tin as my research indicated that was more than suitable - in 
> fact I think (if memory serves me) that aircraft wire is tin coated to 
> prevent the copper oxidizing.  My plug is exposed to moisture when the 
> canopy is open, rain/dew, etc.  Also, I did not use any corrosion preventive 
> such as grease or spray so given all that, perhaps the news is that it held 
> up so well for so long.
> 
>   So given its been over 10 years, I guess gold is not a requirement {:>). 
> Wow! $1200 and its not even solid gold {:>)
> 

I found corrosion on the Molex connectors in the wing spar on the BD-4
when I had it apart.  It was completed in '79.  I replaced them with
new Molex connectors.  I think I would have opted for the sealed ones
if I had them readily available although I didn't even try to find any
at the time.  The $1200 is for a LOT of pins.  Each pin only cost
about 2X what the tin plated ones cost.  Some sort of grease to keep
moisture out of the connection might help.  I did a quick search of
Bob Nuckolls site but couldn't find any recommendations for it.

The other day someone asked about how to clamp the wires on DB
connectors on Bob's list.  I told him to wrap them with silicone tape.
I thought I had figured that out myself, but a little later Bob N.
answered with a link to a picture showing the technique.  I'm sure I
saw that picture a couple of years ago.  It works real good anyway.

Bob W.


-- 
N93BD - Rotary Powered BD-4 - http://www.bob-white.com
3.8 Hours Total Time and holding
Cables for your rotary installation - http://www.roblinphoto.com/shop/