If the drones are different, can they be swapped? Can we take the salvage drones from the Reclaimer and put them in the Vulcan, or the refueling, repairing, rearming drones and put them on the Reclaimer, if they're made by the same manufacturer?

I would imagine you can, but the usability of them takes a severe dent. Naturally, the Vulcan has the ability to pipe fuel into it. The Reclaimer doesn't have that. So you could probably take the salvage drone out of the Reclaimer and put it in the Vulcan. It's all self-contained, so it's fine. They can carry stuff fine, but some of the more specialized functions they're going to struggle with.

Yeah, because you've got a fuel line from the tank underneath to the drone, so you can fuel the drone up before sending it out. You could potentially have a salvage drone that takes fuel from wrecked ships and brings it back and then tops back up your tank. So you could potentially see a way where you would have a salvage drone useful as one of the four. If you have cargo drones on some ships or if you have other types of drones, it's like, well, I have no need of a repair drone because I can't send fuel to it and I can't put metals into it kind of thing. You're limiting yourself. But the option could still be there potentially.