Approximating High-Tech and Ultra-Tech with Spaceships

[ericthered]

Originally Posted by ericbsmith

Technically, Maneuver Enhancement is only available for Air; it's available for Ground and Water vehicles at Superscience TL's.

Oh! I was just taking Michael Thayne's suggestion as a baseline. Where are the rules on those things anyways? I'm not finding them...

As a note, is there a way to do custom sizes on the spaceships spreadsheet? Or could you add 2.5 as a valid size?