December 31, 2007 - Tail Light

 I finally got around to addressing an area that I think is one of the most commonly asked questions:  how do you run the strobe and nav light wires to the rudder. 

In the same issue of the RVator that addressed the static tube - F-705 bulkhead issue, they had advice for running wires to the rudder.  Again, I shamelessly followed it.

I drilled a 3/8" hole just outside the Vertical Stabilizer.  If I ever have to remove the vertical stabilizer -- not that I think I'll have to -- I won't have to cut the wires.  I don't have the real estate to put a snap-bushing in; I'll have to wrap something around the wires to protect them. 

 

 Now with the strobe bundle and nav lgiht wires running through.

  
I drilled this hole in the aft deck for the elevator trim wires.  The wires will then run through that hole you see in the horizontal stab. 
 
Another famous issue is how to connect the elevator trim wires to the very thin servo wires.  I like using the little D-Sub pins, with heat shrink over the top to keep the male/female pins together.  I crimped the female ends to the five servo wires.
 
Here's my tail strobe/nav light, ready for mounting to the rudder fiberglass bottom.
 
I had previously built up the fiberglass mounting area with epoxy mixed with cotton flox -- again, years ago.  I used the light to match-drill the two mounting holes. 
 
The rudder bottom tip. 
 
I inserted the two screws into the nut, then used the industrial-strength RTV sealant to secure the nut -- make it "blind".  The tail light probably costs $100+; I sincerely do not want it dropping off the plane. 
 
The co-pilots stick has a significantly smaller diameter than the pilot's.  I wrapped duct-tape around the top of the stick so that the grip would stay on.  I'm also going to put a little RTV sealant in there when I'm sure it doesn't have to come off anymore.  I also crimped some handshake terminals to the PTT wires.  The co-pilots stick is removable; hence the handshake terminals.
 
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