Bandit LOAF
Long Live the Confederation!
Hmm...should I be treating the Drayman-I and the Diligent as the same class of ship (i.e. the Diligent is a specific Drayman)? I'm not really noticing a lot of significant differences between the two.
It's hard to say.
The REASON the Drayman and the Diligent look alike in Wing Commander I is because they were originally the same ship. The plan was that Wing Commander I would have one ship, the Drayman, which would look differently depending on whether it was a tanker or a transport. There was no separate "Diligent" class in that concept.
They had to cut the Drayman tanker art (and several others) from Wing Commander I to save disk space. Then it came back in The Secret Missions, now as a separate ship called the Diligent. Despite the fact that it looks just like a Drayman with a tanker it never actually appears as a tanker (its one appearance in The Secret Missions is as a 'sport.)
... the only other thing I would note in this case is that when these ships were redesigned for Super Wing Commander they no longer looked alike. The Drayman became a Babylon 5 and, like the internet itself, the Diligent was now a series of tubes. To the best of my knowledge, no canonical specifications for the Diligent have ever been published (it's strangely missing from the updated SWC Claw Marks.)
(For the record, I'm referring to the WC1 Drayman as the Drayman-I and the Privateer Drayman as the Drayman-II; my understanding is that they're supposed to be the same craft, but there may be enough differences in overall shape, armament and defenses to warrant a second entry in the capship catalog. I'll have to analyze the Privateer Drayman a bit more to know for sure.)
Short answer: no clue.
There IS Privateer concept artwork where the Drayman is the Wing Commander I version rather than the slipper-looking thing from Privateer. That said, Privateer borrows its other 'returning' Wing Commander I ships (Salthi, Dralthi) from Super Wing Commander and not the original game... and the SWC Drayman looks nothing like the Privateer one. Privateer 3 also had a merchant freighter named Drayman (no mark) which was patently different, though, with an entirely contradictory set of specifications.
The Lumbari...same question would apply here as between the Drayman/Diligent - are they in fact the same class of ship? I get the impression that they aren't. Guns ventral and midway along the draft port and starboard to forward, one aimed aft along the dorsal of the cargo box, and one more aimed aft along the flat aft portion of the forward section. Each looks like it'd have a full hemisphere arc of fire; the firing arc coverage looks a lot tighter on the Lumbari and there's more firepower forward. Still not obvious where the mine-dropper would be located.
The same behind-the-screens backstory applies to the Dorkir and Lumbari; the Lumbari artwork was created as the freighter version of the Dorkir tanker and dropped for space limitations only to be reused as a new transport. Then they look completely different in Super Wing Commander.
... but! Unlike the Drayman/Diligent we DO have canonical specifications for the Lumbari. Which tell us that it's less than two thirds the size of the Dorkir... and so they can't be the same ship. Presumably just another instance of the Kilrathi using a similar design on different scales.