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11-10-2015, 01:53 PM
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Join Date: Nov 2008
Location: KY
Posts: 102
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Elevator Trim Motor Wires
I'm wondering if the elevator trim molex connector, near the motor, needs to be fastened/secured inside the motor bay or if it just floats freely in there?
Thanks,
Greg

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Greg
RV-14A Fuselage Complete.
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11-10-2015, 01:56 PM
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Senior Curmudgeon
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Join Date: Sep 2005
Location: Dayton Airpark, NV A34
Posts: 15,419
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If it were mine, I would fasten it down to prevent damage.
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Mike Starkey
VAF 909
Rv-10, N210LM.
Flying as of 12/4/2010
Phase 1 done, 2/4/2011 
Sold after 240+ wonderful hours of flight.
"Flying the airplane is more important than radioing your plight to a person on the ground incapable of understanding or doing anything about it."
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11-10-2015, 02:07 PM
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Join Date: Nov 2008
Location: KY
Posts: 102
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Wow. That was quick
Thanks for the quick reply Mike. I'm a first time builder, may I ask what technique you might use to secure it? My first thought was a dab of silicone.
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Greg
RV-14A Fuselage Complete.
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11-10-2015, 02:16 PM
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Join Date: Oct 2006
Location: SC
Posts: 156
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cable tie mount
I like to pop rivet a small cable tie mount to the structure inside if able; otherwise a self-stick cable tie mount can be used. There are also other ways to keep wires from moving around such as tying to another bundle of wires; it depends on what else is nearby. I make sure that wires cannot chafe on anything and not get caught on any moving parts, especially control pushrods, etc.!
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Melinda Harrill
Flying my RV-7!
Barrett Precision Engine - Superior IO-360 with AFP FI
Garmin Panel - All touchscreens
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11-10-2015, 02:46 PM
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Join Date: Dec 2011
Location: Livermore, CA
Posts: 6,797
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I wouldn't glue the connector; I'd use cable ties on the wires, close to the connector, both sides. No wires should be flopping around, anywhere.
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11-10-2015, 02:59 PM
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Senior Curmudgeon
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Join Date: Sep 2005
Location: Dayton Airpark, NV A34
Posts: 15,419
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Quote:
Originally Posted by Tilford
Thanks for the quick reply Mike. I'm a first time builder, may I ask what technique you might use to secure it? My first thought was a dab of silicone.
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Here is how I did the trim servo connectors on my 10. I used Deans connectors, but that doesnt matter----look at the tie down method. You can also see the black lacing cord I used to make sure the two halves of the connector will not separate accidentally.
No problems at 235 hours
You might try some self adhesive Velcro material?????

__________________
Mike Starkey
VAF 909
Rv-10, N210LM.
Flying as of 12/4/2010
Phase 1 done, 2/4/2011 
Sold after 240+ wonderful hours of flight.
"Flying the airplane is more important than radioing your plight to a person on the ground incapable of understanding or doing anything about it."
Last edited by Mike S : 11-10-2015 at 03:04 PM.
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11-10-2015, 07:01 PM
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Join Date: Nov 2008
Location: KY
Posts: 102
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Excellent
Excellent advice, thanks.
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Greg
RV-14A Fuselage Complete.
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11-11-2015, 10:42 AM
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Join Date: Mar 2014
Location: Laguna Hills, CA
Posts: 1,805
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I used Velcro on mine too (and to secure the magnetometer as well, augmented by a couple of velcro straps around the unit and mount).
Mike, those Deans plugs are great. I've used a few here and there. A tight-fitting, quality connector with gold-plated contacts, available at hobby shops everywhere. Lacing cord is great; you can also put heat shrink around the whole connector, and cut it off with an X-Acto if removal is necessary.
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Doug
RV-9A "slider"
Flew to Osh in 2017, 2018 & 2019! 
Tail number N427DK
Donation made for 2020
You haven't seen a tree until you've seen its shadow from the sky -- Amelia Earhart
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11-11-2015, 11:21 AM
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Senior Curmudgeon
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Join Date: Sep 2005
Location: Dayton Airpark, NV A34
Posts: 15,419
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Quote:
Originally Posted by rightrudder
Mike, those Deans plugs are great. I've used a few here and there. A tight-fitting, quality connector with gold-plated contacts, available at hobby shops everywhere. Lacing cord is great; you can also put heat shrink around the whole connector, and cut it off with an X-Acto if removal is necessary.
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And, they are available up to 6 (or maybe more?) pin units, and all are polarized so you cant put them together wrong.
In the photo above, I modified a three pin so I could de-polarize it, and used that for the motor wiring, just in case I needed to reverse the trim tab direction. The polarized three pin unit is for the feedback pot wires.
__________________
Mike Starkey
VAF 909
Rv-10, N210LM.
Flying as of 12/4/2010
Phase 1 done, 2/4/2011 
Sold after 240+ wonderful hours of flight.
"Flying the airplane is more important than radioing your plight to a person on the ground incapable of understanding or doing anything about it."
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