GURPS O'Neill Cylinder Design

[AlexanderHowl]

Originally Posted by Tyneras

I'm not quite sure I follow you, AlexanderHowl. This is a SM+21 station, inflated to SM+25 due to it having a density more like a beach ball than a warship, with a SM+26 shell of rock (or more likely a mix of rock, ice, and other useful raw materials.) around it.

Unless you are just pointing out that once the cylinders get large enough, the need for a rocky shell goes away due to sheer bulk.

Spaceships SM is by mass, not volume.