OKI OQQ-25 towed sonar selected for Australia's Upgraded Mogami frigates

Australia will field the Japanese OKI OQQ-25 towed passive sonar on its new 06FFM “Upgraded Mogami” frigates, marking OKI’s first overseas transfer of this sonar equipment. The novelty is the cross-national adoption and integration of a Japanese ASW sensor into the RAN ecosystem, with potential implications for multi-static ASW interoperability alongside systems like CAPTAS-4 and P-8A.