Ha'apax class

The Ha'apax class Advanced Warbirds] were large starships used by the Romulan species in the early 25th century. They demonstrated the latest developments in technology of the Romulan Star Empire. These craft were much larger than even the D'deridex class Warbirds and held a greater amount of firepower as well as hull strength. Though slow to maneuver, these vessels dominated the battlefield as they were able to withstand a great dreal of damage and yet at the same time unleashed their own armaments at its enemies. (STO website: Legacy of Romulus Dev Blog #3)