The Bay class ships have a full load displacement of . Each is long, with a beam of , and a draught of . Propulsion power is provided by two Wärtsilä 8L26 generators, providing , and two Wärtsilä 12V26 generators, providing . These are used to drive two steerable azimuth thrusters, with a bow thruster supplementing. Maximum speed is , and the Bay class ships can achieve a range of at . For self-defence, Cardigan Bay is armed with two 30 mm DS30B cannons, four Mk.44 miniguns, six 7.62mm L7 GPMGs, and two Phalanx CIWS. The standard ship's company consists of 60 officers and sailors.