Building a "working" C-130 in 1:144. I added diodes and optical fibres for the navigation and landing lights, which worked well; and I built 4 micromotors in the nacelles, which apparently worked well too. Then I connected all the wires to two connecting pins on the bottom and closed the fuselage . Then I connected the external 3V battery, the propellers turned, but the lights did not work. I opened the fuselage again and tried to repair things, but I couldn't. Apparently I should have used two different power supplies ,one for the motors and one for the lights.
Finally, it will have just rotating propellers.