Spacecraft in the Shattered Worlds employ a composite armour made up of layers of ceramic, crystalline carbon and plastics. This is non-reactive armour; most navies feel that the problems inherent in using reactive armour on a spacecraft outweigh its benefits.

For each slot of armour placed on a ship, the ship gains Damage Reduction (DR) equal to half its Linear Value. Round down only after doing the math, so that you get the most out of your fractions.

Any ship with Streamlining will require at least one slot assigned to armour.

A ship will have Hull Points equal to its Area Value. For each slot assigned to reinforced hull, add half its Area value to its Hull Points. However, even among military vessels, only capital ships bother with this option.