The Australian-developed Ikara system gave HMS Bristol a standoff anti-submarine weapon in addition to Sea Dart and its gun. It could carry a torpedo roughly ten nautical miles from the ship before releasing it near a contact. Ikara was also fitted to some Leander-class frigates, placing Bristol's installation within a wider Royal Navy effort to extend shipborne anti-submarine reach. That range allowed a helicopter which had exhausted or missed with its own weapons to keep tracking instead of returning to rearm while the submarine approached firing range. The ship could place several torpedoes around the target even without directly controlling each weapon after launch. Ikara's quality remains debatable, but this option was far more useful than having no immediate way to exploit the helicopter's contact. Missile delivery connected aviation sensors to a surface escort's magazine.
Notable Point · 39:37-41:11
Ikara extended a ship's anti-submarine reach
Ikara let HMS Bristol launch torpedoes about ten nautical miles toward a submarine contact while a helicopter maintained the track.