(enhancement)
(issue #200 :D)

Add a wrench or something. It probably doesn't have to be customizable, so you can code it into Flan's Mod as a default item. It's a bloody wrench, how are you supposed to customize it

While holding right click towards a nearby vehicle that is damaged, a wrench-ish noise should play, and the vehicle should be repaired slowly (20 hp per second or something).

Maybe this should use up iron ingots in the inventory, this would only really be needed for when visible plane damage is working properly.

Yeah, that would be good. I was thinking of tanks when I made this, but planes would work, too!