Fortress-class vessel

''This article is about a starship class. For the music track, see Fortress (music).''

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 the ships were approximately 50 kilometers long and 10 kilometers across at the widest point. The hull is divided into three 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.

At the time of the Forerunner-Flood war these ships were up to 100km in length with far more destructive capabilities, a battle group of these were capable of destroying at least one of the original 12 Halo Installations.

Due to their behemoth structure, a single fortress ship is capable of carrying and deploying an amount of orbital picket cruisers, weapon-ships, and fast attack runners.

Known vessels

 * Deep Reverence

Trivia
From the descriptions given by the novel, the design of the fortress seems to bear many similarities to the design of High Charity.

List of appearances

 * Halo: Cryptum
 * Halo: Primordium
 * Halo: Silentium