The Centurion-class was twice as long as it's contemporary conterpart the Interdictor-class cruiser. Not only did the Centurion-class have increased cargo capacity and heavier firepower, it carried up to 96 starfighters and was armed with multiple turbolaser, ion cannon, tractor beam and point-defense laser cannon batteries, as well as proton torpedo launchers. And its command tower held spacious quarters for the command crew, with the bridge alone the size of a concert hall.
The Centurion-class battlecruiser was meant to succeed the ageing Inexpugnable-class tactical command ship as the Republic Navy's new capitol ship. At first only a limited number of these ships served during the Mandalorian Wars, but gained more traction under the command of Darth Revan, where they made up the heavyweights of his "Sith Armada" during the Jedi Civil War. Most of his vessels were either captured or destroyed by the end of the War.