As built, defensive armament consisted of a twin Sea Dart surface to air missile launcher in the ship's bows. 22 Sea Dart missiles were carried. A Type 1022 long-range air-search radar was mounted above the ship's bridge, with Type 909 fire control directors for the Sea Dart system mounted at the fore and aft end of the ship's superstructure. A Type 992 air-surface search radar was mounted on the ship's mainmast, while a Type 1006 navigation radar was also fitted. Type 184 medium range sonar was also fitted.