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Electical Connections between Wing and Fuselage

JimD

50cc
With our giant scale planes, long servo extension cables, and high power servos with their high current demand...how can we make the connection between the wings and fuselage to minimize potential problems.

Like most modelers, we are always looking for a better more reliable way to do things. With our giant scale planes, the wing/fuselage connection was an area of interest. Having worked with the Sermos connectors on our crop of electric planes over the years, I got to thinking about using them for this job.

That took us on a search for Anderson Powerpole products: http://www.powerwerx.com/anderson-powerpoles/housings-contacts/

Turns out that the housing are available in a variety of colors and the metal pins are available in sizes down to small gauge wire. Since these connectors are designed to be plugged and unplugged through many, many cycles, and since they are rated for high current and low loss, seemed like a plausible idea.

So, we ordered red, black, white, and yellow housing, the small size connector pins, and four across mounting clamps. We also bought some bulk heavy gauge twisted servo wire in Futaba and Hitec colors from Servo City. Since we are using Hitec servos with the twisted wire leads, the twisted servo wire just looks right! We also bought some unassembled Hitec gold plated male connectors to finish out our connections on the receiver side.

https://www.servocity.com/html/wire_connectors___access_.html

We used the red/black/white for the aileron servos and the red/black/yellow for the flap servos. The red and black wires were combined in the same connector pin assembly using the corresponding color housing. The yellow signal wire and the white signal wire each got their own connector pairs and matching housings. Makes it easy to trace which lead goes to which servo when you get to the receiver end of the cables.

The Hitec connectors were added to the receiver end of the cables using the wire stripper and pin crimper sold by Hansen Hobbies:

http://hansenhobbies.com/products/connectors/tools/

We have used this setup in two planes over two flying seasons with excellent results.

Here is a photo essay of the process:

201.jpg 202.jpg 203.jpg 204.jpg 205.jpg 206.jpg 207.jpg 208.jpg 209.jpg 210.jpg 211.jpg 212.jpg 213.jpg 214.jpg 215.jpg
 

JimD

50cc
Man Bunky...what is a guy to do...ARF's so don't have to build the plane...now this, so I don't have to make extension cables!

What am I supposed to do all winter (aka building season) while it is too cold to fly?

Guess I need to move south and just fly all of the time! :fist_pump:
 
Man Bunky...what is a guy to do...ARF's so don't have to build the plane...now this, so I don't have to make extension cables!

What am I supposed to do all winter (aka building season) while it is too cold to fly?

Guess I need to move south and just fly all of the time! :fist_pump:

Nothing wrong with doing stuff yourself. Just showcasing that there are other options available. I used to make my own 22ga and 20ga extensions for many years.

I'm personally not a fan of APP connectors. Seen far too many wires break inside the pin, either soldered or crimped.
 

JimD

50cc
Bunky, I hear you...that is why the silicon glue was used, we will see how they do over time. Definitely like the taildragger R/C components, will have to get a set in my hands and look at them closer.
 
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