Among the first recorded sightings in the Alpha Quadrant was in the year 2374, when one such vessel was encountered by the crew of the Federation Starfleet starship USS Valiant. The Valiant attempted to destroy the vessel with a precision attack to the antimatter storage, but failed and was itself destroyed. (DS9 episode: "Valiant"; STO website: Dev Blogs)
These vessels were later used in the war to eliminate enemy outposts as well as provide heavy support at the Battle of Cardassia. (DS9 episodes: "The Dogs of War", "What You Leave Behind"; STO website: Dev Blogs)
These massive vessels were among the most powerful vessels fielded by the Jem'Hadar, described as being twice the length and mass and having three times the power of a Federation Galaxy-class starship. (DS9 episode: "Valiant"; STO website: Dev Blogs)
The ships were heavily armed and densely defended with polaron weapons, quantum torpedoes, and dual hangar bays capable of deploying Jem'Hadar fighters or even full-size attack ships. They were also equipped with a Dominion command interface capable of analyzing the weaknesses of targets and broadcasting resulting data to friendly starships. (ST video game: Star Trek Online)
|Starship classes of the Dominion|
|By type||Jem'Hadar battlecruiser • Jem'Hadar battleship • Jem'Hadar dreadnought carrier • Jem'Hadar fighter (attack ship) • Jem'Hadar fighter (25th century) • Jem'Hadar heavy escort • Jem'Hadar heavy escort carrier • Jem'Hadar recon ship • Jem'Hadar strike cruiser • Jem'Hadar strike ship • Jem'Hadar super carrier • Jem'Hadar warship|
|Vanguard Fleet||carrier • dreadnought cruiser • heavy destroyer • heavy raider • support carrier • temporal warship • warship|
|By foreign designation||Starfleet classification 232|
- Jem'Hadar dreadnought carrier article at Memory Alpha, the wiki for canon Star Trek.
- Season 7 Dev Blog #31: New Dominion Lock Box and Lobi Ships
- Jem'Hadar Dreadnought Carrier article at The Star Trek Online Wiki.