cloydvanhook@imtt.com wrote:
>
> I have to replace my compass. I will need to splice the wires going to
> it.
>
> What's the "approved" or recommended way of splicing the wires?
>
> Do they have to be soldered?
>
*** No. In fact, while soldering is "approved", the FAA seems to prefer
that you crimp. This is because crimping is preferable to soldering for large
manufacturing operations, because it requires no special skills on the part
of the operator.

> Can I use crimp on connectors? If so is there an "aircraft type" I should
> use?

*** Use good-quality butt splices. Aircraft Spruce & Chief sell them. Expect
to pay fifty cents per or more. Do NOT use the splices down at the auto
parts store! Splice them with a die-based ratchet crimper. "Ideal" makes
an OK one for about $60. Get some spares to practice with before you do the
"real" ones. Practice until you can reliably crimp such that the wire will
break before it pulls out of the crimp. One side of the crimper die will
have a relief for the wire, the other side doesn't. The side without the
relief is what I call the "business end", and it should face away from the
wire. Easier to show than tell.

You should also get a quality notched wire stripper. It looks like a pair
of diagonal cutters with notches cut in the blades. Without a good sharp
stripper, you will have problems with Tefzel-insulated wire. That stuff is
tough!

Get a copy of AC43.13 and read the wiring info in there before starting.
Lace the wire with nylon lacing tape. Also available at the usual suspects.
Read AC43.13 to learn how to lace. While working, imagine that your wires
are getting the bejeezus vibrated out of them. The wires should be
adequately supported, should not be too short ( they shouldn't twang when
you pluck'em ). They should also not be too long - with loops hanging
here & there.

>
> Or do I just twist them together and tape them with electrical tape?
*** NO!

- Jerry Kaidor ( jerry@tr2.com )

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