On December 12, 2022 7 , during a ceremony (by invitation only 2 ) held in Sydney 8 , Anduril unveiled its first underwater drone prototype. On this occasion, the Royal Australian Navy revealed that the program was officially named Ghost Shark 1 , 7 . The first prototype is called the “Dive-LD”, for “ Dive-Large Displacement 2 ” (in French:
diving , grand
displacement ). This is a
test bench 2 ,
5 which will be used for testing and experimentation purposes
1 ,
3 for the development of the future extra-large underwater drone (XL-AUV) which will succeed it
2 . This is a starting point for developing
software , techniques, and testing payloads
, all with the goal of scaling the
robot to the size needed for prolonged operations at great
depths .
The Dive-LD is smaller than the upcoming final Ghost Shark 6 . However, it is already not a small drone: it measures 5.8 meters long and has a diameter of 1.2 meters. It weighs 2.8 tonnes. It can reach a speed of 13 km/h 5 and can “autonomously carry out missions for up to 10 days on the seabed up to 6,000 meters deep”, declared the Anduril company in a press release
1 .
Its maximum range is 580 km 5 . It can be assumed that larger versions will perform even better
1 .
The prototype, whose outer shell was printed on a 3D printer 5 , can reach staggering depths of 6,000 meters 2 . Indeed, not needing a pressurized hull, it can descend to a much greater depth than the manned submarines currently in service. The maximum depths reached by military submarines are usually classified information, but naval analysts told
Reuters they are between 300 and 900 meters. The ability to descend to much greater depths can make a submarine more difficult to detect and attack.
Submarine manufacturing and performance are being radically transformed by being unmanned , 4 explained Dr. Shane Arnott, senior vice president of engineering
at Anduril
2 ,
9 .
“A large part of submarine systems (and associated expenses) is devoted to crew survival,” Arnott said in an
interview he gave at the company's offices in Sydney.
Take away the men, and submarines become much easier and cheaper to build. Thus, the Ghost Shark does not have a pressurized hull, this envelope (usually tubular) of high-strength
steel which protects the crew and sensitive components of a submarine from the enormous
pressure exerted by the water by great depth.
Water flows freely through the Ghost Shark's structure . This means that Anduril can build a lot of them, and quickly. And the Ghost Shark will be able to perform maneuvers that no conventional military vehicle could survive, such as diving thousands of meters below the surface of the ocean
4 .