What are Australia’s “Ghost Shark” & how will they change naval warfare?

Australia is investing A$1.7 billion (US$1.1 billion) over five years in the development and production of “Ghost Shark” autonomous undersea vehicles (XL-AUVs), a move set to reshape naval operations. These uncrewed submarines, developed by Anduril Australia in collaboration with the Defence Science and Technology Group, are being built domestically with the first fleet expected to enter service in early 2026.

What are Ghost Sharks?

Ghost Sharks are extra-large autonomous submarines, bus-sized XL-AUVs, capable of long-range, stealthy missions without surfacing. They perform intelligence, surveillance, reconnaissance (ISR), and strike operations and can be deployed from either shore or surface vessels. The innovative design includes a ‘flooded’ interior that lacks a traditional pressure hull, optimizing endurance and depth capabilities. The onboard AI—Anduril’s Lattice system—controls navigation, propulsion, and mission decisions.

Why are they a game-changer for naval warfare?

Ghost Sharks offer persistent undersea presence at significantly lower cost than crewed vessels, filling vital operational gaps amid delays in Australia’s AUKUS nuclear-submarine program. With their stealth, endurance, and multi-mission flexibility, they bolster surveillance and strike capabilities along Australia’s vast maritime borders. Their development also means new jobs and industrial growth, with the program expected to support over 120 existing jobs and create 150+ new skilled roles at Anduril, plus 600 more across 40+ suppliers.