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Sporting a similar shape to the Imperial II, it had several differences, including the gravity well generators, as well as a taller hull and thicker armor.
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This cruiser was manufactured by the same company as the Interdictor Sienar Fleet Systems, and was built on the frame and body of an Imperial II-class Star Destroyer. The Immobilizer-class Star Destroyer, as its name suggests, was a successor to the Immobilizer 418, with the most notable difference being its size, as it was classified as a star destroyer, as opposed to a standard cruiser.
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