The standard superstructure is almost completely removed, but the class retains the small forward hangar of the Imperial-class and possesses perhaps 2 squadrons of TIEs.ДЄllegiance-class Star Destroyers are a significant departure from the basic wedge-destroyer design. It posesses the powerful gravity-well generators that allow the ship to interrupt or prevent hyperspace travel, which occupy a significant fraction of the standard ISD hull volume. While the Immobiliser-418 type is a smaller, more specialised vessel, the Dominator is a more flexible, powerful type similar to the Imperial-class. The Dominator-class appears to be KDY's response to the Sienar Fleet Systems Immobiliser-418 interdictor. It still has a shuttle hanger so it could possibly carry a handful of Assault Gunboats. Because the Tector-class was more armored it was much more effective in combat than their Imperial-class cousins, however, this also left the Tector-class without any form of fighter support. These ships opted for more armor plating, their reactor bulb reinforced and not visible. The Tector-class Star Destroyer is a hangarless Star Destoyer. There are sub-variants of this class, known as Imperial I-class (ISD-I, sometimes referred to as the Devastator-class) and the Imperial II-class (ISD-II, or the Avenger-class). It combines powerful sublight engines with a flexible turbolaser armament and a wing of 72 TIE craft. It was originally called the Imperator-class Star Destroyer before being renamed after the Jedi purge. The standard mile-long (1.6km) ISD is the Imperial-class Star Destroyer, a versatile small warship. This protection is effective for some time in regular combat - an ISD can survive half an hour of combat with a similar foe. The shield system protects the ship from both physical impacts and energy weapons (through ray shields), and this protection is limited in the first case by the internal mounting of the shield system and in the second by the capacity of the heat-sinks which absorb the incoming energy. The ships are protected by a powerful shielding system and heavy armour on many surfaces. This allows the warship's armament to be effective, even after significant damage. Imperial starships have a great deal of redundancy built into their armament - the emplacements are controlled locally, and the larger weapons often have dedicated reactors and fire control systems for use when the main systems are unavailable. The entire surface of the ship is covered in lighter weapons for defence against smaller craft. The secondary armament is distributed between the side 'slots' (which often feature 'notches' in the upper and lower armour belts to improve fire arcs) and batteries placed along the centerline of the ship. The main armament of turbolasers is placed on either side of the dorsal tiers, in large turrets containing between two and eight individual weapons. Many classes have powerplants too large to fit entirely within the physical bounds of the armour belts, and there is thus a larger or smaller 'bulb' on the ventral surface, to protect the oversized reactor.ДЄrmament layout on these ships follows from their physical shape. Others have clean ventral lines, trading the utility of smaller craft for superior armour coverage. Many of these vessels also have one or more hangars on the ventral surface, for the handling of starfighters and various planetary landing craft. The basic physical layout of an arrow-head with dorsal tiers of 'crellenations' or superstructure surmounted by a distinctive KDY bridge tower is common across a great many types, classes and sizes of Imperial warships.

The upper and lower armour belts end at the side 'slots', lightly armoured areas where the internal honeycomb of the ship is exposed. This allows an aggressive, forward-facing attitude to bring many weapons to bear on a target. Imperial Star Destroyers (or ISDs) have many design elements in common, the most obvious of which is the streamlined 'arrow' shape.

Imperious class star destroyer