More Star Wars/Traveller ship scale

Today’s contribution to I Made It So I Might As Well Share It. Might be interesting or useful to someone else as well.

A selection of some of the most iconic Star Wars ships at the same scale, with their respective volume in Traveller tons. (Traveller calls a volume of 14m³ a ton for interesting but annoying reasons. It’s the unit for designing space ship interior deck plans.)

Click to embiggen.

As the eagle-eyed have already spotted, this image does not include Star Destroyers as they would reduce anything else to small smudges of grey pixels. But I did calculate their volume, and the classic Imperial class Star Destroyer would be 5,000,000 tons, and the much less ludicrously scaled Victory class 900,000 tons. On the end of the scale, both the YT-1300 Millennium Falcon and the Airbus A320 passenger plane are about 40 tons. (Much to small to have a hyperspace jump drive in Traveller.)

The rapid increase in volume compared to only slight differences in exterior size may seem off, but that’s a simple optical illusion by the brain just not being any good at comprehending the relationship of length to volume. Cones in particular look like they should be similar in volume to a cylinder with the same base and length, but is only a third of that. And the Strike is much more of a cylinder compared to the Dreadnought being almost rectangular with rounded corners. And the Saturn-V rocket has 85% of its volume in the thickest section that makes up two thirds of it’s length. That’s how you can easily fit three of them into the considerably shorter but more than double as wide GR-75 freighter.

Star Wars ships are massive! But Traveller ships aren’t small either.

A few years ago I made a size comparison of the various classic Star Wars ship types in GIMP. But I only compared the ships against each other.

Yesterday, I was trying to get a sense of scale for ships in Traveller, as they are not usually measured in length but by volume. The CR90 corvette from Star Wars is fairly easy to measure for a volume estimate, having the volume of 4,500 tons of liquid hydrogen. (Relevant xkcd joke here.) With the Patrol Corvette from Traveller being 400 tons, and the tables for ship design in Cepheus Engine only going up to 5000 tons, that had me wonder how small ships in Traveller are. And how big even the smaller ships in Star Wars actually are. So I made this scale comparison for the CR90 corvette, the smallest big ship in Star Wars.

Click to embiggen.

Those are big.

The A380 might not have been a good size comparison, as these planes are gigantic. It makes a Saturn V rocket look somewhat unimpressive. So today, I made this size comparison too.

Click to embiggen.

The Iowa class is one of the biggest warships ever build. Even slightly longer than the Yamato, though not nearly as thick in the hips. Even the flimsy looking Nebulon-B frigate that disappears in the background in battles between the big hitters in Star Wars is bigger than that.

The A320 is by far the most common plane for passenger flights inside Europe. It’s the only plane I’ve ever been on, and when you look out the window at an airport terminal, almost everything is either an A320 or equivalent size. It’s volume can be approximated as a cylinder 37 meters long and 4 meters wide, plus let’s say +20% for the wings. Which comes out as 40 tons of liquid hydrogen. That’s only 40% the minimum size for a ship to install even the smallest possible Jump Drive. The classic Free Trader is a 200 ton ship. Five times as a big as an A320.

I also calculated that the Millennium Falcon would be 160 tons. That’s 4 times the volume of an A320. Can that be right?

It indeed does check out. It’s a bit sad that we never got any wide shots of it with people crawling under and over it (probably because that would be much more expensive to film), but it is a pretty big ship.