HMS Emperor

The HMS Emperor was a battleship built in the late 24th century. It was armed with several phased hellbore cannons and was the first ship of this class to be outfitted with a cloaking device in order to fight the Borg Collective. Also, it disappeared from Hydrax when it went through a temporal rift. Her Eminence was tasked with recovering the ship, being successful. (: "Night of the Were-Hawks", "Forlorn Hope")