Editing Raiders of the Rim:StarshipRules (section)

== '''Scale''' ==

A ship can attack or defend against another ship one level of Scale above or below it without special benefits or penalties. After that, each level of Scale confers an extra +2 for Guns and Shields, and most other offensive and defensive rolls. This represents the far superior power and toughness of a larger ship. The same applies in reverse for defensive evasion moves. A ship two levels or more of Scale below its opponent gains a +2 for Evade or other Pilot contests for each level of Scale difference beyond 1.

Ships of Scale 5 or above gain a -2 penalty per additional point of Scale to any tests or contests involving maneuvers or speed, no matter how high their Drives rating. This is to reflect their cumbersome, momentum-heavy nature. Of course, most space navies don't bother to build in all the extra drive muscle needed to propel heavy units at high speed, and a tight turning circle is never an option.

Ships of Scale 6 or above gain an extra +8 Extreme consequences box.