I think it’s illogical to straps wires in the wings that never can be accessed anymore and therefore I’m thinking about using conduit in the wing, the same I did in the vertical- and horizontal stabiliser.
Standard procedure of TAF is to fix the wires for the strobes, landing- and taxi lights with tie-raps.
But the area between ribs 7-8 and the area between ribs 1-4 cannot be access anymore when the wings are closed.
What about maintenance like replacing or exchanging wires???
For the left wing I need wires for:
– nav lights in wing tip
– landing- and taxi lights
– pitot heat
For the nav lights I can use the same cable as for the rudder strobe light: M27500-20TG4T14.
I’m not yet sure which landing/taxi lights I’ll buy, there are multiple options ranged from 35$ to 750$ and more (I need 4):
– Kuntzleman this is what TAF uses and is easy to mount because TAF ships brackes for these lights
– Aveo Altas 10
– Aeroleds Sunspot 36
– Amazon inspired after seeing this video on YouTube
Since the LED light marked is changing fast I will wait until the airplane is ready and buy then landing- and taxi lights that are a good choice at that time.
The LED lights up to 500$ draw current varies from 1.5 to 3,5 A, based on the following chart I will need AWG18 wire.
I prefer to use shielded Tefzel wire, so there are 2 options:
– 2 cables with 2 cores: M27500-18TG2T14 (standard available at Aircraft Spruce)
– 1 cable with 4 cores: M27500-18TG4T14 (difficult to buy and expensive to ship to The Netherlands via WireMasters)
For the pitot heat I will use AWG14 wire, shielded is not needed here but twisting the wires for limiting magnetic field is a good practice.
I played around with conduit I have left from the empennage.
One size bigger (13 mm) conduit will rub against the rivets in the stringer, so maybe I will run 2 conduits for the lights and 1 for the pitot heat.
I can use one existing 12 mm hole for the conduit with the cable of the pitot heat and one 16 mm conduit from the larger (18 mm) hole in rib 1 to the first access panel below rib 12 and then continue with two 10 mm conduits in the stringers for the nav, landing- and taxi lights.
This is just a test, I ordered different size conduits with adapters from Conrad, when they arrive I figure out a final solution.