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Date: Thu, 26 May 2005 12:20:35 -0600
From: Bob White <bob@bob-white.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: FlyRotary] Re: Prewired EC2 Cables
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On Thu, 26 May 2005 10:49:20 -0400
"John Slade" <sladerj@bellsouth.net> wrote:

> > Thanks for all the responses.  It seems there are at least several
> > people that would be interested, so I will consider it a go.  I will
> > put together a prototype for pictures, and I need to purchase some
> > materials.  I will post to the list when I'm ready to accept orders.
> Bob,
> The premade harness sounds like a good deal. I had mine done by Tracy once I
> realized that getting all those tiny pin solder connections right was beyond
> my capability.
> 
> One thing to consider is that with a canard pusher you can't get a prewired
> harness installed easily because the plugs won't go down the electrical
> conduit. A harness could be installed during the fuselage construction, but
> once the fuselage is built you either have to run the harness another way,
> add a connector, or snip and resolder all the wires.
> 
> As for my "troubles", I beginning to think that these had nothing to do with
> the EC2 wiring. I think what happened to me was a combination of lack of
> expertise and being in South Florida. I followed Bob Nuckoll's teachings and
> used crimp connections. The crimps (at least when done by me) allow humid
> air to get in the ends. My wiring worked fine 2 years ago when I installed
> it. Two years of humid salt air and a bit of vibration has gradually
> degraded important connections and created nasty gizmo eating ground loops.
> I'm now working to clean up the connections with heat-shrink soldered joins
> and double heat-shrinked soldered crimps to fast-ons etc. etc. I'm working
> "top-down", as Tracy puts it, going after the high current circuits first,
> testing the resistance under load as I go, and making sure the connections
> are air-tight.
> 
> You live and learn. :)
> 
> Regards,
> John (Have soldering iron - will travel (eventually)
> 

Thanks John,  that's good info.  I was thinking you had replaced some
of your wires with shielded wires.  If it works OK with good
connections, there shouldn't be any major problems.

 I would be glad to work with anyone on working around the cabling
problems like the suggestions by Dave and Al in other messages.

Bob W.


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