The Utopia-class starship was a type of Federation heavy cruiser created by Starfleet in 2375. Three of these were built, weighing in at 1.83 metric tonnes, each with a crew of 450. The vessels measured 17 decks in height, 530 meters in length, had a maximum cruising speed of warp 9.965 and were armed with three quantum torpedo launchers and 10 type XI phaser arrays. (Trekmania)