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Wiring

 
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Jaybannist(at)cs.com
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PostPosted: Mon May 29, 2006 5:38 pm    Post subject: Wiring Reply with quote

I am building an XL and am curious about wiring from the wings. I have seen
on various web sites, the use of terminal blocks in the fuselage. I have left
enough wire (I think) to reach the instrument panel. Is it better to run the
wiring unbroken from the "user" to the switch, or is it better to use
terminal blocks (and why)?

Thanks in advance - Jay in Dallas working on fuselage.


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craig(at)craigandjean.com
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PostPosted: Mon May 29, 2006 6:41 pm    Post subject: Wiring Reply with quote

Running the wires unbroken from the wings to the control panel would imply
that you do the final wiring behind the control panel when the wings are on
(presumably at the airport). And that you will cut the wiring (and add a
connector I guess) if you ever remove the wings. I agree that having no
connector is more reliable than a connector of any type. But I can't make
the assumptions above. So I'm putting in the connector pairs from the start.

BTW: a good quality pair of mating connectors would be better than a
terminal block. No screws to come loose and you can protect the whole joint
with large heat-shrink tubing.

-- Craig


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davgray(at)sbcglobal.net
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PostPosted: Tue May 30, 2006 3:29 am    Post subject: Wiring Reply with quote

Another option is to leave an additional loop of wire at the wing root and
solder the joints and add shrink wrap. How many times in the life of the
aircraft do you remove the wings?
This is fast, secure and repeatable.
I added a plate 1-1/2" above the center wing spar on the console to route
the pitot tubes and wing wires without being seen or disturbing the wing
spar.
The plate serves as a place to velcro the Y-control stick boot on its top
and the wires below thru gromets.

Gary Ray

---


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JAPhillipsGA(at)aol.com
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PostPosted: Tue May 30, 2006 7:44 am    Post subject: Wiring Reply with quote

Jay, I used on recommendation from my tech counselor, Jim Hoak, a zissor
connector covered in shrink tube just inside the fuselage. Worked well in
disconnecting later to remove the wing for painting and transport to the hanger. Also
you did not have to worry about if the wire was long enough. FWIW, best
regards, Bill


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Jaybannist(at)cs.com
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PostPosted: Tue May 30, 2006 8:36 am    Post subject: Wiring Reply with quote

Bill, I've not heard of a zissor connector. Tell me more.

Jay

do not archive


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steerr(at)bellsouth.net
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PostPosted: Tue May 30, 2006 9:13 am    Post subject: Wiring Reply with quote

I believe he meant the knife disconnects. They're items 32446 and 32448 in
my ACS catalog.

Bill

Quote:
Bill, I've not heard of a zissor connector. Tell me more.


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planejim(at)bellsouth.net
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PostPosted: Tue May 30, 2006 9:44 am    Post subject: Wiring Reply with quote

Jay,

I'm the one who recommended the knife ( Bill called them sissor -
(mispelled)) connectors that he used. These have been used in the aviation
industry for many years. They are used where you will have to occasionally
disconnect / connect wires. These are Aircraft Spruce Part Numbers 32446
(22-16 wire size-red) and 32448 (16-14 wire size - blue).

I believe using these knife connectors would work fine at the fuselage /
wing juncture. Be sure to use shrink wrap and some way to secure the
connections to prevent them from chaffing.

Terminal strips have their use and could be made to work at this location
but would be more complicated, heavier and require careful insulation.

Jim Hoak 601HD 512 hours.
---


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JAPhillipsGA(at)aol.com
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PostPosted: Wed May 31, 2006 8:11 am    Post subject: Wiring Reply with quote

Jay, sorry about the spelling, they were scissor connectors. Bill

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Jaybannist(at)cs.com
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PostPosted: Wed May 31, 2006 9:09 am    Post subject: Wiring Reply with quote

Bill, It seems they are more commonly called knife disconnects. - Jay

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