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Need good method to get wing servo extensions aft

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Need good method to get wing servo extensions aft

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Old 06-02-2003, 03:45 AM
  #1  
mikenlapaz
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Default Need good method to get wing servo extensions aft

Four servo extensions need to route over normal Throttle and Engine Killl servos and aft to Rx located forward of Vert stab.

Extensions are 1 meter (one end in wing)

First spiralled some plastic drinking straws Red & Green and wrapped wires then a larger straw spiralled with small dowel to poke them aft about 12" . Not too pleased with this and was sure MinnFlyer and others must have a neat solution. Sure like you drawings MF.

First thought to keep wires out of forward servos is to put a velcro strip on wing bottom just forward of aft wing bolts.
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Old 06-02-2003, 10:57 AM
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MinnFlyer
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Default Need good method to get wing servo extensions aft

What type of plane is it, and how large?
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Old 06-02-2003, 12:08 PM
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Dsegal
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Default Need good method to get wing servo extensions aft

Doc Mathews suggested using a metal beaded chain as a weight to drop the servos leadds through a wing or fuselage. These are commonly used as light fixture pull chains. Nothing to poke through the covering.

Dave Segal
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Old 06-02-2003, 01:04 PM
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mikenlapaz
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Default Need good method to get wing servo extensions aft

H9 UltraStick 120, full balsa sides on fuse
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Old 06-02-2003, 05:11 PM
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Kaos Rulz
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Default I concur with the metal chain method....

.....Just drop one end of the chain and if there's a hole or opening, the chain will find it and go through it.
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Old 06-02-2003, 06:34 PM
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mikenlapaz
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Default Need good method to get wing servo extensions aft

I think a clarification of mv problem may assist in getting some alternate solutions. The extensions are run in wing. no problem
I'm looking for a method to regularly 'snake' 4 servo extensions 13" horizonally aft thru the fuselage and an open bulkhead to attach to the Rx.

I can not visualize balancing a 76" wing, standing the plane on its tail and attempting to drop a beaded chain down thru the fuse each time it was assembled at field to fly.
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Old 06-02-2003, 06:59 PM
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Default Need good method to get wing servo extensions aft

Why can't you leave the extensions in place (plugged into Rx) and connect them in the open wing bay? Which servo extensions are they, maybe I'm missing something.
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Old 06-02-2003, 07:10 PM
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Default Need good method to get wing servo extensions aft

I would also have an extension to the bay where the wing connects. If that wont work, put 1 inch paper tubes in so you have a way to channel the wires. you can run a ni-rod in from the back end, hook it to the wire, put the wing on, drag the wire back through the tube and plug it in.
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Old 06-02-2003, 08:32 PM
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Default Need good method to get wing servo extensions aft

DBCherry
visualize
Servos with 10" factory wire mounted 15 & 18"out from C/L fuse connection inside wing to 39" extension.
The servo leads exit wing 8" forward of aft end wing saddle and are about 27" remaining length.
They need to ''snake' 13" horizonally aft thru the fuselage and an open bulkhead to attach to the Rx.

Flyboy
I agree it would simplify setup to make the connections in the wing saddle area. It would require an additional 14+" extension to each of the 4 servo leads or a splice in the existing wires and 4 sets of male / female connectors which are not easily obtained. Would like to keep added wiring connectors to a minimum. The red outer housing of small gold n rod is stiff enough but too small ID to split & insert all 4 wire sets.
Just re-read your post, will explore the tube concept.
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Old 06-03-2003, 03:21 PM
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Default Need good method to get wing servo extensions aft

The only easy solution I see is to connect them at the wing opening. You can do it without buying new connectors. try this:
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Old 06-03-2003, 04:34 PM
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mikenlapaz
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Default Need good method to get wing servo extensions aft

MinnFlyer In your solution are you removing the wires from the plugs and making new mechnical connections on the ends and re-inserting in the end plugs? Or are you suggesting just leaving ends 'as is' and soder / splicing each of the wires in TWO places?

Plan 2 in progress: Made a 3/4" I.D. paper tube from adding machine paper 3 layers, with good overlap 6ply spiralled and CA exterior and interior dribble runs. Beveled ends and will support with SpiderWire at ends to aft wing saddle and top of aft bulkhead for present.
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Old 06-03-2003, 04:51 PM
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Default Need good method to get wing servo extensions aft

This really isn't rocket science.
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Old 06-03-2003, 06:42 PM
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Default Need good method to get wing servo extensions aft

Ok, let's keep it simple...

Cut the servo wire midway from the servo to the plug.

Solder 3 wires between the servo and plug that are long enough for the plug to exit the wing at the root with a few extra inches
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