Adentha

The Adentha Class Cruiser is the Republic's flagship for it's previous generation of naval firepower. It's replacement is far behind schedule and over budget, so it's service life has been extended.

The Adentha class Cruiser is 356 meters long, a 200m long orbital bombardment canon with anti-capital ship munitions. A dual array of rail gun cannons along either side of the ship. A small hanger bay and a shallow missile deployment system. This is the most well rounded ship in the Republic's arsenal and is capable of fighting for long a duration thanks to it's incredibly thick armor, deep reservoirs to cool the hull from laser attacks.

While writing this I had the Venator from Star Wars in mind, replacing that ships large hanger bays with an orbital bombardment cannon but keeping that ships middle/side hangar bays.