If it's good for tanks, why not aircraft? Plenty of times in WWII where aircraft had to belly in or make an emergency landing, off runway and sometimes a considerable distance from a base (Pacific Theater, for instance). So long as the damage wasn't structural, a repair/salvage crew would be sent out to recover the aircraft. I could either use the same "supplies" box used to repair tanks, or it could be a unique payload for any vehicle or aircraft that can currently carry vehicle supplies. In the case of bombers, I'd say the repair should only affect the "lead" aircraft.
I do think that the "insta-repair" currently allowed for vehicles should be changed to require some small amount of time, even if it's only 30 seconds, like the re-arm pad. Consider that a separate, but complimentary request.
Rich