Leviathan-class carrier

The Leviathan-class were the first supercarriers of the United Nations Space Command. Only the class leader UNSC Leviathan took part in the Interplanetary War and was present for the surrender of the Frieden space fleet. All four supercarriers remained in service until the Naval Compromise of 2290, when the Leviathan and the Titan entered reserve. The Colossus and the Goliath followed suit in 2330 and 2415, respectively. 
The old supercarriers stayed in reserve as little more than costly relics of the Interplanetary Era, only entering public discussion as an example of the considerable expense of the UNSC's reserve fleet. Following the catastrophic defeat at Reach in 2552, the UNSC reactivated the Leviathan-class for the defense of the Sol system. All four carriers were partially modernized, with three of them receiving outrigger magnetic accelerator cannons alongside a massive arsenal of Archer missile pods. The entire class took part in the Sol Campaign, with two carriers badly damaged and two carriers destroyed before the fighting concluded and the Covenant withdrew. 
==History==
===Development and construction===
*Developed as part of the "Overwhelming Power" package, including the replenishment ship Towards Incomprehensibility, the super-battleship Thunder from the Heavens, the super-heavy cruiser Conqueror, and super-heavy destroyer Oriflamme
*Essentially oversized carriers suitable for transporting wings of space fighters and huge quantities of troops and equipment
===Service===
*Only Leviathan sees action during Jupiter and Trojan deployment; subsequent supercarriers exist to "reinforce" UNSC dominance
*Utility of the interplanetary supercarrier wanes; two placed in reserved due to the Naval Compromise of 2290, with the remaining supercarriers following in 2330 and 2415
*Reactivated for the Sol Campaign (see quote)
==Design==
*Cavernous hangers, massive loading/unloading areas, equipped with launchers for drop pods
*Moderate contemporary armor
==Ships in class==
Carrier 	Commission	Struck	Details
Leviathan	2169 	2290 	The UNSC Leviathan was commissioned in 2169. The Leviathan was the only supercarrier to see service during the Interplanetary War, taking part in the Trojan Offensive and the last months of the Jupiter Campaign. The Leviathan was placed in reserve alongside the Titan in 2290. The Leviathan was reactivated in September 2552 for the Defense of Earth.
Titan † 	2178 	2290 	The UNSC Titan was commissioned in 2178. The Titan was placed in reserve alongside the Leviathan in 2290. The Titan was reactivated in September 2552 for the Defense of Earth and was destroyed by Covenant forces in late October.
Colossus 	2186 	2330 	The UNSC Colossus was commissioned in 2186. The Colossus was placed in reserve in 2330. The Colossus was reactivated in September 2552 for the Defense of Earth.
Goliath †	2193 	2415 	The UNSC Goliath was commissioned in 2193. The last of the Leviathan carriers to enter service, the Goliath was also the last in commission when it was placed in reserve in 2415. The Goliath was reactivated in September 2552 for the Defense of Earth and was destroyed by Covenant forces in November.
===UNSC Leviathan===
The UNSC Leviathan was commissioned in 2169 during the Interplanetary War. The supercarrier was quickly deployed to Jovian Space, transporting troops and supplies alongside its fighters and bombers. The only supercarrier active during the Interplanetary War, the Leviathan was outsized only by the gargantuan replenishment ship UNSC Towards Incomprehensibility and only by a few hundred meters. The Leviathan took part in the Trojan Offensive and was present for the surrender of the Frieden space fleet. The supercarrier remained active in carrier and transport roles for the next century and beyond. Both the Leviathan and the Titan were decommissioned and placed in reserve as part of the Naval Compromise of 2290. 
Following the catastrophic defeat at Reach in 2552, many old interplanetary reserve ships were ordered reactivated for the defense of the Sol system, and the Leviathan was no exception. The centuries-old carrier was given a major overhaul, outfitted with Archer missile pods and outrigger magnetic accelerator cannons, and given the nebulous designation of "support carrier". The UNSC Leviathan was badly damaged during the Battle of Earth but survived. 
===UNSC Titan===
The UNSC Titan was commissioned in 2178. The supercarrier was used primarily as a glorified troopship for most of its career. Both the Titan and the Leviathan were decommissioned and placed in reserve as part of the Naval Compromise of 2290. The Titan was reactivated in September 2552 in preparation for the defense of the Sol system: the old carrier was given a major overhaul and fitted with Archer missile pods. Unlike the rest of the reactivated Leviathan carriers, the UNSC Titan did not receive outrigger magnetic accelerator cannons before the arrival of the Covenant on October 10, 2552. The UNSC Titan was destroyed by Covenant forces in late October. 
===UNSC Colossus===
The UNSC Colossus was commissioned in 2186. The supercarrier was used along more traditional lines than the Titan and made numerous deployments across the Sol system in response to flare-ups, with its last deployments occurring in the 2310s and 2320s. In 2330, the Colossus was decommissioned and entered reserve alongside the already present Leviathan and Titan supercarriers. Reactivated alongside the Leviathan in September 2552, the old carrier was given a major overhaul and outfitted with Archer missile pods and outrigger magnetic accelerator cannons. The UNSC Colossus was savaged by Covenant forces but survived the campaign. 
===UNSC Goliath===
The UNSC Goliath was commissioned in 2193. The supercarrier remained in active service until after the Inner Colony Wars. The Goliath was decommissioned in 2415 and placed in reserve. In September 2552, the old carrier was given a major overhaul and outfitted with Archer missile pods and outrigger magnetic accelerator cannons. The UNSC Goliath was destroyed by Covenant forces in November. 
Category:Carrier classes