GURPS Spaceships, upscaling sizes

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Originally Posted by Tyneras

Going by wikipedia Titanic was 52k tons, making it SM+11, ...

Normally, you round up on SM, so that would by +12 (which is why I use the fractional ones)

Physical size, at 294 yards, it would be up to SM +13 according to that. You could call it SM +12, since it was long, but it was very boxy...nothing like something like a fast battleship (Iowa classes were as much as 60k tons, but a little shorter, and a lot more svelte).