Orion-class battleship

The Orion-class battleship is a heavy capital warship in service with the UNSC Navy during the 27th century.
== Overview ==
=== Specifications ===
At a length of 2,220 meters (7,283.5 feet), a beam of 610 meters (2,001.3 feet), and a mass of 35 million metric tons, the Orion is larger and more heavily armed and armored than the Valiant-class battleship while boasting a superior thrust-to-mass ratio. 
The Orion-class incorporates a miniaturized and reconfigurable automated factory and chemical processors of the type commonly seen aboard colony support vessels, allowing the ships to produce fuel, spare parts, and munitions so long as sufficent raw materials are available.
The Orion-class' primary weapons array comprises a pair of heavy Magnetic Accelerator Cannons. Secondary weapon systems include missile batteries, heavy railgun turrets, and point-defense guns.
=== Service history ===
The Orion-class was in the early design stage as early as 2583, and would go through numerous design tweaks and viablity studies before being officially finalized and greenlit in 2585. The prototype and class leader, UNSC Orion, was completed and launched in 2591.
As the Earth-Minbari War began in 2645, Orion-class battleships commonly served as flagships, serving in numerous battles throughout the Outer Colonies in defensive actions against the Minbari Federation. Vessels of the Orion class formed the core of long-range strike groups that attempted to disrupt Minbari supply lines and staging areas.
== Ships of the line ==
* UNSC Orion - Class leader.
* UNSC Pollux - Participated in the Earth-Minbari War, lost with all hands during the Battle of the Line.
* UNSC Bellatrix - Command ship of Strike Group 7.
*UNSC Walpurga
*UNSC Sirius
*UNSC Regulus
*UNSC Taurus