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Control Stick Switches

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aerobubba(at)earthlink.ne
Guest

Posted: Mon Oct 12, 2009 6:17 am Post subject: Control Stick Switches

Hi Gordon-



 	  Quote: 	
		   Is it proper to have a single ground conductor for all of the stick

switch functions?
	


 	  Quote: 	
		   Should the PTT be given special consideration and a separate ground path

 with perhaps both (to-from) paths shielded.


	


I elected to run three grounds for my two control sticks.  Two of those

grounds go through a progressive switch on the panel.  The ON position has

all grounds connected and both sticks are fully functional.  The

intermediate position disconnects the ground for all rear seat stick

functions, disabling the stick should there be tiny or otherwise

inappropriate fingers poking around.  The OFF position also disables the

rear stick and additionally disables the front stick trim controls.  This

provides protection from trim system runaway while leaving the PTT and

other front stick switches active.  The progressive switch itself is

located near the throttle, along with the other switches I might like to

operate quickly with my non-flying hand.



I like this configuration, and just offer it up as food for thought.  YMMV-

glen matejcek

aerobubba(at)earthlink.ne

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longg(at)pjm.com
Guest

Posted: Mon Oct 12, 2009 7:23 am Post subject: Control Stick Switches

Glenn,



I concur with the additional grounds save the space provided. In my Ray

Allen stick, they really only provide room for one solid ground to the

stick itself and little room for the remainder of the wires. My pet

peeve with RA is that lack of room. C'mon, just make that cap 1/4

thicker guys.



In defense of myself I made sure to add a circuit breaker to the panel

to drop the whole thing if it decides to try and kill me. I did the same

for the A/P which in my experience has also tried to kill me. If you can

kill it first, there's your safety margin. As grounds go, yes, I have

two separate grounds, one for pilot and co-pilot just to isolate good

grounds.



Glenn



--

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