Advancing UK Aerospace, Defence, Security & Space Solutions Worldwide
  • Home
  • /
  • Defence
  • /
  • DASA awards MSubs autonomous sub contract

Defence

DASA awards MSubs autonomous sub contract

The first extra-large autonomous test submarine will be developed for the Royal Navy following a new contract awarded through the Defence and Security Accelerator (DASA) to Plymouth based MSubs Ltd.

Above: MSub’s S201 manned submersible to be converted into an unmanned vehicle (XLUUV).
Images copyright MSubs

An initial £1-million contract has been awarded to Plymouth-based MSubs Ltd to build a test submarine that will be used to explore the potential capabilities of larger uncrewed underwater vehicles in the future.

Advertisement
ODU RT

Measuring about 30 feet in length, this extra-large autonomous submarine is significantly larger than autonomous submarines used for beach reconnaissance, allowing it to operate at a range of 3000 nautical miles.

Admiral Tony Radakin, First Sea Lord announced the contract at the Underwater Defence & Security Symposium in Southampton. The First Sea Lord noted how the Ministry of Defence wants to increase its presence in the underwater battlespace and is exploring the use of extra-large uncrewed underwater vehicles (XLUUV) for surveillance, reconnaissance, and anti-submarine warfare operations.

Admiral Tony Radakin, First Sea Lord said: "I am enormously excited about the potential for remotely piloted and autonomous systems to increase our reach and lethality, improve our efficiency and reduce the number of people we have to put in harm’s way.

"These XLUUVs are at the forefront of underwater systems technology; UK technological developments such as this will be key to the Royal Navy maintaining its battle-winning edge in the underwater environment."

XLUUV submarines are especially adept at covert intelligence gathering. They can leave their dock autonomously and secretly move to the operational area without any embarked crew for up to three months. They are also able to sense hostile targets and report their findings back to the station, making them an important barrier for anti-submarine warfare.

Defence Minister Jeremy Quin said: "Submersible autonomous vessels have huge potential and this project could be a game-changer for the UK’s underwater capability, taking our submarine service to the next level.

"I am pleased that this funding supports MSubs Ltd., a UK based company committed to innovation and research in the autonomous sector.

"This is a key example of how defence is doing more than ever before to give industry the opportunity to research innovative new technology."

Above:
Concept image of XLUUV developed by MSubs.
Copyright MSubs

Advertisement
ODU RT

DASA delivery manager Adam Moore said: "DASA’s involvement is enabling this technology to advance at a much quicker pace and to deliver new capabilities to the Royal Navy years earlier than otherwise possible, making sure the UK stays ahead of our adversaries.

"Not only will this enhance the UK’s strategic advantage but also boost UK prosperity by supporting small and medium-sized companies like MSubs in Plymouth."

The first phase of DASA’s Developing the Royal Navy’s Autonomous Underwater Capability programme, run jointly with the Royal Navy and Defence Science and Technology Laboratory (Dstl), will see an existing crewed submersible refitted with autonomous control systems.

If initial testing is successful, up to a further £1.5-million is available to further test the new capability making it the largest joint contract awarded as part of a DASA competition.

Currently, smaller autonomous and remotely piloted submarines are unable to undertake all the tasks of larger crewed submarines.

Paddy Dowsett from MSubs said: "We are thrilled to be awarded this contract through DASA, and have the opportunity to work with defence scientists and experts to develop new and advanced capabilities for the Royal Navy.

"This funding will allow the Royal Navy to better understand their future roles and for us to remain at the forefront of Extra Large Uncrewed Underwater Vehicles (XLUUV) design and manufacture in Europe."

 

Advertisement
General Atomics LB
Navantia UK debuts autonomous vessel design

Defence Events

Navantia UK debuts autonomous vessel design

19 May 2026

At the Combined Naval Event in Farnborough today, Navantia UK unveiled its large autonomous surface vessel - LASV75 - as an example of the hi-tech capabilities of its four yards, which are undergoing large-scale modernisation.

QinetiQ to test British Army’s remote-controlled artillery systems

Defence

QinetiQ to test British Army’s remote-controlled artillery systems

19 May 2026

QinetiQ has been awarded a contract from the National Armaments Director (NAD) Group to put the British Army’s newly contracted Remote Controlled Howitzer 155 (RCH155) next generation artillery system through rigorous tests to ensure it is safe to use on operations.

Hexagon releases NCSIMUL upgrade

Aerospace Defence

Hexagon releases NCSIMUL upgrade

19 May 2026

Hexagon’s Production Software Division has announced the latest release of NCSIMUL, strengthening its integrated approach to NC programme verification, simulation and optimisation with a new Selective Simulation capability.

Apache support drones get £10m boost

Defence

Apache support drones get £10m boost

18 May 2026

Fully autonomous drones which will accompany the British Army’s Apache helicopters are receiving a £10 million investment as Project NYX reaches a new milestone.

Advertisement
ODU RT
RAF Typhoons deploying APKWS in Middle East

Defence

RAF Typhoons deploying APKWS in Middle East

18 May 2026

A new Advanced Precision Kill Weapon System (APKWS) is being fitted to RAF Typhoons on operations in the Middle East, providing a low-cost anti-drone weapon to precisely destroy targets for a fraction of the price of missiles currently used.

BAE Systems delivers US Space Force missile warning sensor system

Defence Space

BAE Systems delivers US Space Force missile warning sensor system

18 May 2026

BAE Systems has delivered the sensor subassembly and sensor system controller components for the Next Generation Overhead Persistent Infrared Polar (NGP) programme, providing advanced missile warning, technical intelligence and battlespace characterisation mission capabilities, for the US Space Force.

Advertisement
ODU RT
Advertisement
FIA2026 animated banner