Ultra Maritime has been awarded a contract to provide torpedo defense technologies for Australia’s Hunter-class frigates, marking another milestone in the nation’s naval modernization effort.
The agreement, issued by BAE Systems Maritime Australia, covers the Surface Ship Torpedo Defence (SSTD) system—an advanced solution designed to detect, classify, and neutralize incoming torpedo threats. The system utilizes a single in-line towed array and features an automatic threat alert that minimizes false alarms and reduces operator workload.
Ultra Maritime will execute the program from its Adelaide facility in South Australia, combining local production with its extensive undersea warfare expertise to enhance Australia’s maritime defense capability.
Earlier in the year, Ultra’s 2150 Bow Sonar was also selected for integration into the Hunter-class design. Together, the SSTD and 2150 Sonar form key elements of the frigate’s anti-submarine warfare (ASW) suite, based on BAE Systems’ Global Combat Ship platform.
This design forms the foundation for allied programs in the UK, Canada, and Norway, ensuring interoperability and shared architecture among partner navies.
Hunter-Class Overview
The Hunter-class program aims to strengthen Australia’s naval capabilities with six next-generation multi-role frigates, constructed at the Osborne Naval Shipyard by BAE Systems Maritime Australia.
Derived from the UK’s Type 26 design, the vessels are optimized for anti-submarine warfare but will also support air defense, surface combat, surveillance, and humanitarian operations.
Each frigate will displace approximately 8,200 tons, measure 151 meters (495 feet) in length, and achieve speeds exceeding 27 knots (50 km/h or 31 mph).
The combat system integrates the US Navy’s Aegis combat architecture with an Australian interface developed by Saab Australia, supporting a crew of 183 plus additional accommodation for up to 208 personnel.
The first ship is expected to enter service in the early 2030s.
