Leviathan

• Appeared in:
  
  I
  II
  III
  IV
  V
  VI
  CW

• Size:
  600 meters long

• Weapon:
  20 quad laser cannons; 4 gravity well projectors; tractor beam; 2 ion cannons; 4 turbolasers

• Affiliation:
  Galactic Republic, Sith

• Type:
  Hyperspace interdiction cruiser

• 

From the Expanded Universe

Since the perfection of the hyperdrive, there has been a race to develop devices that counter its use. The ability to escape into faster-than-light corridors of space has long been exploited by criminals and fugitives, and for thousands of years there's been an invisible technological race between faster and smarter hyperdrive system and more powerful and effective interdictors.

Four thousand years ago, the vanguard of interdicting technology was encased in a massive Republic warship, the Leviathan. Though inefficient by modern standards, the vessel was capable of preventing the use of hyperdrives of the era by simulating the presence of planet-sized masses with its four enormous gravity-well generators.

It was a great blow to the Republic when the Leviathan's commander, Admiral Saul Karath, defected to the growing Sith forces. The pride of the Republic navy became its greatest threat. Karath filled the cavernous hangar bays with two squadrons of agile Sith fighters, which supplemented its formidable arsenal of 20 quad laser cannons, a tractor beam projector, two ion cannons and four turbolaser batteries.