Royal Navy Purchases First Uncrewed Submarine to Enhance Maritime Security

Cetus, developed by MSubs, will be the largest and most complex crewless submersible operated by a European navy By DA Staff / 01 Dec 2022
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Project Cetus

MSubs has been awarded a £15.4 million contract by the Royal Navy to manufacture and deliver a cutting-edge crewless submarine in order to enhance the Royal Navy’s experimentation with autonomous underwater systems. 

Project Cetus – named after a mythological sea monster – is the first step in developing an operational autonomous submarine that will work independently or side-by-side with crewed submarines, including the Astute-class hunter-killers and their successors.

According to the contract, the vessel will be delivered to the Navy in two years’ time and will further advance the UK’s ability to protect its critical national infrastructure and monitor sub-sea activity. 

The vessel’s maximum operational depth will exceed that of the current submarine fleet, meaning Cetus will equip the Royal Navy with even greater reach into the oceans in support of UK defense. It will also be able to cover up to 1,000 miles in a single mission.

Cetus will be 12 meters long, 2.2 meters in diameter and weigh 17 tons, making it the largest and most complex crewless submersible operated by a European navy. The vessel will fit inside a shipping container and can therefore be transported around the world to wherever it is needed. It will be designed to operate with all of the ships from the Royal Navy fleet as well as those of its allies.

“The faith the Royal Navy has shown in our small business is humbling and we look forward to working closely together in the future, as we have in the recent past, to develop and deploy Cetus, in the national interest,” said Brett Phaneuf, Chief Executive Officer at MSubs. 

“In order to meet the growing threats to our underwater infrastructure, the Royal Navy needs to be ahead of the competition with cutting edge capabilities. Project Cetus, alongside bringing forward the MROS ships, will help ensure we have the right equipment to protect the security of the UK and our Allies,” said Defence Secretary Ben Wallace. “Having the skills base and specialist knowledge to develop and build this vessel in the UK, is testament to the UK’s leading reputation in building surface and sub-surface ships.”

Cetus will be a platform for the Royal Navy on which to experiment and build cutting edge technologies and capabilities around, encouraging innovation and developing best practice. The unarmed vessel is battery powered, meaning its effective range can be increased by installing additional batteries. It has also been designed to be modular, with an optional section that can be added to double the capacity of the vessel.

The Navy has invested in a dedicated tech trials ship, XV Patrick Blackett, to assess and test new equipment and determine how it could be used or integrated into the fleet. Cetus is the equivalent for sub-sea experimentation.

“This is a hugely exciting moment for Project Cetus as the Royal Navy surges ahead with the development of autonomous technology,” said First Sea Lord Admiral Sir Ben Key. “This Extra Large Autonomous Underwater Vehicle is a capability step-change in our mission to dominate the underwater battlespace. And I am delighted that the project is able to support a small, innovative UK company which is at the cutting edge of this sector.”

The contract is funded by the Anti-Submarine Warfare Spearhead program, run by the Royal Navy’s Develop Directorate, headquartered in Portsmouth. The vessel will be delivered through the Submarine Delivery Agency in Bristol and is the latest in a series of novel underwater technologies being brought to life to deal with the threats of the next decade. This contract will create 10 and support 70 specialist jobs in Plymouth, UK.

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