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hooverra(at)verizon.net
Guest

Posted: Tue Dec 19, 2006 4:02 am Post subject: AeroElectric-List:

26 ga wire in a common sheath, properly routed and supported is plenty 

robust. The problems happen at the terminations. I recommend connectors 

with properly designed stain relief. I have selected a Switchcraft EN3 

series connectors (http://dkc3.digikey.com/PDF/T063/0289.pdf) This is a 

small diameter circular connector that is weather tight and strain 

relieved. It's more money than a cut-up D connector but it's a reliable 

stable connector. I will add a length of plastic tubing where the wire 

is routed through the elevator hinge area supported by clamps on both ends.



Ralph



Robert L. Nuckolls, III wrote:

 	  Quote: 	
		   

 <nuckollsr(at)cox.net>



 At 04:45 PM 12/18/2006 -0600, you wrote:



> hi all,

>  what are builders doing to connect a trim servo to the cockpit? 

> ''ray allen'' servo takes 5 wires . the company can supply a 5 wire 

> cable. wires are each 26 ga. is that the way to go or is there a 

> better way? 26 ga . seems pretty flimsy.  Any input appreciated.

    24AWG wire in the airframe is marginal for serviceability,

    26AWG wire sucks. Recommend you transition as soon as practical

    to 22AWG by means of a connector . . . here's one way to do it.



 http://aeroelectric.com/articles/macservo/macservo.html



    Bob . . .

      ---------------------------------------------------------

      < What is so wonderful about scientific truth...is that >

      < the authority which determines whether there can be   >

      < debate or not does not reside in some fraternity of   >

      < scientists; nor is it divine. The authority rests     >

      < with experiment.                                      >

      <                            --Lawrence M. Krauss       >

      ---------------------------------------------------------

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ceengland(at)bellsouth.ne
Guest

Posted: Sun Dec 31, 2006 10:40 am Post subject: AeroElectric-List:

bob noffs wrote:



 	  Quote: 	
		   hi all,

  what switch has been satisfactory for a push to talk  mounted in the 

 end of the stick? any suggestions appreciated. thanks in advance, bob 

 noffs


	




Bob,



Almost any normally open (NO) momentary push button that will mount in 

your stick will work fine. The RV-4 I'm flying has around 1,000 hrs on 

it & I'm pretty sure the PTT in the stick came from Radio Shack or a 

similar supplier. Just find one that fits & has an actuation pressure 

you are comfortable with.



If you have a 'real' electronics supply house in your area, tell them 

you need a normally open, momentary, single pole push button switch that 

mounts in a x/y" diameter hole & that will fit within your stick's 

internal diameter. (x/y is the fractional diameter of your mounting 

hole.) If you go to RS, they have switches that have as small as 1/4" 

bushing diameters. The button is obviously small, but actuation pressure 

is low so you don't need a big button. If you fly a plane with light 

controls, you don't want switch pressure to be so high that you will be 

affecting pitch/roll when you transmit. 



Charlie



Charlie

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