The Invincible is a ship in the Ga-Koro Marines' fleet, captained by Vice-Captain of the Marine Force Iraira.
- 19 Bio from bow to stern, 4 Bio across, with a 2 Bio draft.
- A pair of forward rotatary fans offer extra propulsion in calm weather, powered by a generator closer to the bow.
- Six movable disk launchers are carried for ocean combat; they clamp onto the rail for stability. The most common pattern is two fore and aft, and the rest starboard or port.