Vengeance ( Executor - class ) The Vengeance was an " Executor " - class Star Dreadnought that served with the Imperial Navy , under the command of Admiral Wooyou Senn . It was thought to have perished as a result of the Battle of Nocto . History . As flagship , " Vengeance " led the Imperial Task Force Vengeance into the Airam sector to pacify it and quell a Rebel Alliance expansion . Their opposing campaigns were known as " Task Force Vengeance " and " Spreading the Rebellion " , respectively . Combined , they became colloquially known as the " Balance of Power " campaign . The Rebels wore down the task force with a series of surgical strikes and by attacking their supply lines . Eventually , Admiral Senn attempted to force a victory by launching an all - out attack , spearheaded by the " Vengeance " , against the Rebel stronghold in the Nocto system . During the ensuing Battle of Nocto the rebels and their Airam allies rammed three suicidal " Dreadnaught " s filled with explosives into the " Vengeance " from the rear . This and a heavy bomber strike carried out by B - wing starfighters was sufficient to bring down its deflector shields . Finally , a CR90 corvette rammed the bridge of the " Vengeance " after its shields had been disabled . Although there are conflicting reports on the outcome of the battle , both the " Vengeance " and the Rebel shipyard Calenz are thought to have been destroyed in this battle . Behind the scenes . Within the game itself , " Vengeance " had a length of eight kilometers , which at the time was considered canon for the " Executor " - class . However , " " cover art depicts it as a substantially larger ship , in line with the nineteen kilometer length that is now canon . The understated length suggests that " Vengeance " may have been one of the very first lot of four " Executor " - class warships commissioned by the Emperor prior to the Battle of Yavin , but " The Essential Guide to Warfare " lists the " Executor " , the " Reaper " , the " Aggressor " and the " Brawl " as the first four ships of that class , and never mentions the " Vengeance " . Additionally , " The Essential Guide to Vehicles and Vessels " asserts only four " Executor " - class Star Dreadnoughts were known to have been in service to the Empire by the time of the Battle of Hoth in 3 ABY . Nevertheless , since first mission to Almaran was performed by the Alliance shortly after the Battle of Hoth , " Vengeance " was probably the fifth or the sixth " Executor " - class warship manufactured for the Empire , and the second such ship completed at the Fondor Shipyards — the first being the " Executor " . The Dark Jedi Jerec operated another SSD named " Vengeance " several years later , but it appears to be of an entirely different design , being much sleeker than the Executor - class . Canonicity of destruction . It is somewhat arbitrary whether the destruction of the SSD " Vengeance " is canonical . The " Balance of Power " add - on to the " X - wing vs . TIE Fighter " game , the only source featuring this ship , comes with a campaign for both sides , the Empire and the Rebellion . Both campaigns culminate in the same battle where the " Vengeance " leads an all - out attack against a Rebel shipyard . When playing the Rebel side , the last mission ' s objectives are to prevent the destruction of the shipyard and destroy the " Vengeance " while the Imperial mission objectives are reversed . If the player successfully concludes the Imperial campaign , the shipyard is destroyed while the " Vengeance " is not . However , the destruction of both SSD " Vengeance " and the Rebel shipyard do not cancel each other out ; it could be argued that all missions and cutscenes from " Balance of Power " are canonical , including the ultimate simultaneous destruction of the shipyard and the SSD " Vengeance " . This would be the smallest possible tweak to the available information and also fit in with the apparent general consensus that the Empire and the Rebellion achieved a draw in the Airam campaign by essentially wiping out each other ' s forces . Neither the SSD " Vengeance " nor Admiral Senn are ever mentioned again afterward .