The D'deridex-class (also known as the B-type warbird) was a type of warbird fielded by the Romulan Star Empire during the 24th century.
- According to the Ship Recognition Manual, Volume 5: Starships of the Romulan Star Empire the D'deridex is classified as a heavy warbird. In canon and in Star Trek Online it is considered a battlecruiser.
The classes evacuation limit was 10,000. (Ship Recognition Manual, Volume 5: Starships of the Romulan Star Empire)
When duly refitted, its maximum evacuation capacity was 30,000. (RIS Bouteina: "Gogmagog")
Also, many ships of that class had two swimming pools, one forward and one aft. (RIS Bouteina: "Relief and Refuge")
Some ships of the class maintained greenhouses. Aboard the RRW Bloodwing the greenhouse was used for growing tea. (Bait and Switch: "Aen'rhien Vailiuri")