BAE Systems Maritime Australia has selected Ultra Maritime to deliver its Surface Ship Torpedo Defence (SSTD) technology for the Royal Australian Navy’s future Hunter-class frigates. The system will form a crucial layer of the fleet’s anti-submarine warfare capabilities, providing early detection and response against hostile torpedoes.
The SSTD employs a single in-line towed array and an automatic threat-alert feature that distinguishes genuine threats from false positives, helping operators react swiftly while maintaining operational efficiency. Ultra Maritime will manage the project through its Adelaide-based operations, combining local production with its global undersea warfare experience to reinforce Australia’s naval defense industry and technological independence.
This new contract follows Ultra Maritime’s earlier selection to supply the 2150 hull-mounted bow sonar for the same class of ships. Both systems are integrated into the Hunter-class anti-submarine warfare suite derived from BAE Systems’ Global Combat Ship platform, already in service with the UK’s Royal Navy and under development for Canada and Norway. This shared architecture enhances cross-navy collaboration and compatibility across allied fleets.
The Hunter-class program represents one of Australia’s most significant naval modernization efforts, featuring six 151-meter (495-foot) frigates optimized for submarine tracking and maritime security. Built at Osborne Naval Shipyard, each vessel displaces around 8,200 tons, can achieve speeds exceeding 27 knots, and houses up to 208 crew members. The ships will incorporate the US Navy’s Aegis combat system with Saab Australia’s locally engineered interface, combining global combat technology with national innovation. The first vessels are expected to enter operational service in the early 2030s, reinforcing Australia’s maritime strength in the Indo-Pacific.
