Updated after a game update to fix broken code. If you have integrated this into your own build, you can spawn this updated version separately and swap the disk into your build, or make the following change manually:

Display.xc
line 19: add ) at the end

I found a flaw in my wiring. The small battery that runs the computer and nav computer wasn't charging from the main battery. I had to redo the wiring and remove the redundant charge port on one side of the plane. Since I had added some features to the plane since first published, it now sadly includes a couple more gadgets: the beacon finder and a visual vertical speed indicator. The controls code is still in nodes for easy inspection though.

If you already have one of these in service, just run a cable from the big battery to the small one hidden in the nose to keep it topped up.