This type of starship was used by Starfleet during the mid-22nd century. The primary hull was triangular in shape, and had two nacelles mounted port and starboard angled upward from and slightly above the hull. These vessels were equipped with forward and aft phase cannons. (ENT: "The Expanse", "Twilight") This class was also present in the mirror universe. (ENT: "In a Mirror, Darkly", "In a Mirror, Darkly, Part II") * See: Unnamed ships of this class