Ghost Shark Enters Program of Record — From Prototype to Fleet in Three Years AndurilAustralia to spend $1.1bn on underwater ‘Ghost Shark’ attack drones Al JazeeraAustralia is spending $1.7bn on a fleet of Ghost Shark submarines. What are they? The GuardianAustralia to spend $1.1 billion on stealthy, long-range underwater attack drones AP NewsAustralia to Spend $1.1 Billion on Autonomous Undersea Vehicles Bloomberg.com