Fortress-class vessel

Fortress-class vessels were massive warships used by the Forerunner military.

Appearance
The Fortress-Class dreadnoughts were the largest and most powerful warships the Forerunners ever built. In terms of appearance, the Fortress-Class resembles a massive jellyfish. From bow to stern the ship is approximately 50 kilometers long and 10 kilometers at its widest. A Fortress-Class can carry hundreds if not thousands of support craft.

The hull is divided into 3 different sections: the fore-most and largest section of the ship is a massive hemispherical structure. 10km in diameter, its hollow core served as living space for the hundreds of thousands of Forerunner warriors. It has no fixed internal layout, all the internal dividers and bulkheads being formed with hard light, allowing the ship's commander to re-configure the internal structure at will. The mid-section is composed of many platforms layered amongst each other like a deck of cards. Located in the mid-section are dozens of landing bays and weapon mounts.

Known vessels

 * Deep Reverence

List of appearances

 * Halo: Cryptum