Imperial I-class Star Destroyer

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"Imperials have locked down the ports and put Destroyers in orbit."

The Imperial I-class Star Destroyer, also known as simply an Imperial-class Star Destroyer or Star Destroyer, was a model of Imperial-class Star Destroyer in the service of the Imperial Navy. A wedge-shaped capital ship, it bristled with weapons emplacements, assault troops, boarding crafts, and TIE fighters. In the heyday of the Empire, its command bridge was staffed by the finest crewmen in the navy.

At first, Star Destroyers were deployed to sectors and systems caught in the aftermath of the Clone Wars, where they would crush any signs of sedition. During the Galactic Civil War the Destroyer's roles changed to hunting down high value Rebel targets and bases. They fought in notable battles as the Battle of Hoth, and Battle of Endor. At the peak of the Empire, over 25,000 of these ships were in existence.


"This is an Imperial Star Destroyer. All vital equipment is shielded. Even twenty bombs will do nothing."
―Prelate Verge[src]


With a length of 1,600 meters, the wedge-shaped Imperial-class Star Destroyer was distinctly bigger[1] than its immediate predecessor, the Venator-class Star Destroyer, which had been developed for the Galactic Republic during the Clone Wars.[3] In keeping with the Empire's habit of favoring muted colors whenever possible,[4] the hull of the Imperial-class was painted in gray,[1] while the Venator-class of the Clone Wars-era had red markings.[3]

Crew requirementsEdit

Imperial-class Star Destroyers had over 37,000 crew on board— 9,253 officers and 27,850 enlisted personnel. The complement of 9,700 stormtroopers added to a total of 46,803 crew and passengers.[1] With the bridge being located in the upper half of the ship, the officer's quarters were located right below it.[5]


The Imperial-class Star Destroyer bristled with weapons emplacements. 60 Taim & Bak XX-9 heavy turbolaser batteries, 60 Borstel NK-7 ion cannons, and 10 Phylon 07 tractor beam projectors dotted its gray hull.[1] The turbolaser turrets of an ISD were all hooked to large arrays of auxiliary power cells.[5]


Within its vast belly hangar bay, an Imperial-class Star Destroyer typically carried an impressive complement of troops, consisting of seventy-two TIE/LN starfighters, eight Lambda-class T-4a shuttles , twenty AT-AT walkers, thirty AT-ST or AT-DP walkers, and fifteen Imperial Troop Transports.[1] Every Imperial-class vessel also carried consumables for 2 years,[2] while its liquid stores and holds for raw materials were located near its bow.[5]

Propulsion systemsEdit

Powering the Destroyer were seven main engine units,[6] including Cygnus Spaceworks Gemon-4 ion engines,[1] and could accelerate to speeds of up to 975 kph.[2] The ship however was not suited towards planetary atmospheres, in which full power was required to stay aloft. Any interruption in the power supply in atmosphere could be catastrophic to the vessel, despite all vital equipment being shielded.[7] The primary power generator on board the ship was large enough relative to the rest of the craft to protrude with a ventral bulb.[6] In order to jump to light-speed and enter hyperspace the Imperial-class was equipped with a Class 2 hyperdrive, while it was standard protocol to dump the ship's garbage before entering hyperspace in order to reduce the weight of the vessel.[1]

Bridge towerEdit

A prominent feature of the Imperial-class was its bridge tower. Located atop the tower were twin deflector shield generator globes and a tractor beam targeting array.[6] On the command bridge, most of the crew worked in sunken pits below floor level, while senior officers could view the endless depths of space through wide viewports. This arrangement was considered beneficial for denoting rank hierarchy within the ship.[8] A small room behind the main bridge existed separated by a single blast door, which had access to advanced communications equipment and a holographic imaging table.[9]


The Imperial-class Star Destroyers were the technological successors of the Venator-class Jedi cruisers used by the naval forces of the Galactic Republic during the Clone Wars. After the the Republic was turned into the Empire at the end of the Clone Wars, the self-anointed Galactic Emperor Palpatine decreed a massive military buildup. Building upon the strengths of the Jedi cruisers, the bigger Imperial-class vessels became one of the most instantly recognizable symbols of the Imperial might, and were often titled intimidating names such as Lawbringer, Relentless and Devastator.[10]

Lothal under siege

Three Imperial I-class Star Destroyers over Lothal.

Initially, the new Star Destroyers were deployed to sectors and systems that had once been beyond the reach of Republic law, where they would subjugate them and crush any signs of resistance or rebellion. Imperial Star Destroyers became symbols of this new order. Citizens weary of chaos and war cheered the sight of these giant dagger-shaped warships, while pirates and slavers quailed at the thought of confronting them. But a few citizens wondered if the imposition of Imperial law was worth the freedoms lost.[10]

At the peak of the Empire, over 25,000 Imperial Star Destroyers were in existence.[11] Those giant crafts became the backbone of the Imperial Navy, hunting down Rebel task forces, blockading undisciplined worlds and serving as launch bases for planetary assaults.[10]

The Imperial-class would ultimately see service in the First Order's Navy thirty years after the Battle of Endor, and would be regarded as a highly respected ship, with many of its design flaws rectified with the construction of the Resurgent-class Star Destroyer, a newer, more powerful Star Destroyer based on the Old Empire's dreaded warships.[12]



Notes and referencesEdit

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