Executor-class Super Star Destroyer

The Super-class Star Destroyers, also referred to as Star Dreadnoughts due to their immense size, are assigned only to the most important missions. The first two Super Star Destroyers were built at Fondor and Kuat. The SSDs became operational shortly after the Battle of Yavin. Both shipyards claimed to be building the SSD Executor, however the SSD built at Fondor became Lord Vader's SSD, while the one at Kuat was renamed Lusankya and was secretly buried underneath Coruscant. Meanwhile, the Executor became flagship to the newly formed Imperial Death Squadron, whose mission was to hunt down the Rebels. Four Super Star Destroyers were in service by the Battle of Hoth. Several more were under construction. The number of these ships that were completed and in service is classified. The SSD terrorized worlds beyond the capability for resistance, thus it could conquer without firing a shot and so win the battle before even engaging the enemy. Several Imperial Admirals saw the SSD as a blatant bid for power by Lord Darth Vader and they tried to sabotage the Executor while it was still under construction at Fondor by informing the Rebels about it. In the end, the Rebels were not successful and the treacherous Admirals were eliminated by Lord Vader.

These ships are fully equipped, essentially, they serve as mobile fortress-cities. The midway point of the command tower is the location of the senior officer's suite. Also, there is a large reception room with a massive transparisteel viewport that looks out over the SSD's bow. These 13-engine-ships have enough firepower to destroy entire fleets alone and are also used as command ships for Imperial Navy Fleets or planetary invasions. These vessels have a docking point at the base of the command tower and also an auxiliary bridge to take control of the vessel in the event that the main bridge is taken out. SSDs have also been equipped with raw material recycling facilities, unlike the Imperator-class Star Destroyer. In a military sense, these vessels are somewhat impractical, since a smaller ship could fulfill its mission duties. Instead, the SSD symbolized the Emperor's unlimited power and resources. Super Star Destroyers are one of the largest classes of ship ever built.