Fortress-class vessel

Fortress-class vessels, more commonly known as fortresses or fortress ships, were massive warships used by the Forerunner military.

Design Details
Fortress-class warships were some of the largest and most powerful vessels in the Forerunner navy. From bow to stern older Fortress-Class ships like the Deep Revenance were approximately 50 kilometers long, newer ships were at least twice as long. Old and new Fortress-Class were 10 kilometers across at the widest point. A single fortress ship can carry thousands of support craft.

The hull is divided into 3 sections: the foremost section of the ship is a massive hemispherical structure 10 kilometers in diameter. The dome's hollow core serves as living space for hundreds of thousands of Forerunner Warrior-Servants. Below the dome is a mid-section composed of layered platforms supporting landing bays and weapon mounts. The aft section of the ship is a long "tail" covered in gun emplacements and other forms of energy weaponry.

Capabilities
Fortresses were capable of deploying hundreds, if not thousands, of orbital picket cruisers, weapon-ships, and fast attack runners.

Known vessels

 * Deep Reverence

Trivia

 * The design of the fortress bears many similarities to the design of High Charity.

List of appearances

 * Halo: Cryptum