One thing to consider is that with a canard pusher you
can't get a prewired
harness installed easily because the plugs won't go
down the electrical
conduit. A harness could be installed during the
fuselage construction, but
once the fuselage is built you either have to run the
harness another way,
add a connector, or snip and resolder all the
wires.
One easy solution
is to use the gold plated, machined crimp-on d-sub pins. Put all the
pins on, but pull the wire bundle to where it goes before snapping the pins
into the connector.
After doing all my
avionics and EFIS plugs with the gold plated crimp-on D-subs, I got to love
them. Quick easy, and with the special D-sub crimp tool; very secure
connections. Snap them into the connector after making and checking the
crimp.
I’m recommending
that Tracy go
that route. Yeah, it takes a good tool ($44 t Aeroelectric http://www.bandc.biz/cgi-bin/ez-catalog/cat_display.cgi?9X358218#RCT-3)
I believe in soldered connections for all critical leads that carry much
current, but the risks involved in soldering those little solder-socket d-subs
that are already in the connector – I don’t think so.
It is
especially important on the EM2 P-1 connector because the TC wire does not
solder well. Tinned copper works OK, but the TC wires do not form a
eutectic at the joint, and you only get a ‘mechanical’ connection anyway. I
found I had to use additional acid to get the solder to wet out on these wires
– risk of corrosion in the future. If I were doing that one over, I’d toss
that connector and get a new one with the plated crimp-on
pins.
Any seconds to
that motion (Tracy
needs a little more pressure; don’t ya think :)
Al