Source-linked news, original analysis and approved development briefs across unmanned systems. Original event dates, publication dates and evidence limits remain distinct.
The August 14 workshop disclosed development of a USV designed to carry a kamikaze UAV. It is retained separately because the carrier mission and payload architecture differ materially from the fiber-optic kamikaze USV.
Z173 was identified as developing two types of small kamikaze USV. 'Two types' describes variants and is not converted into two physical units. Cost, quantity and production status remain undisclosed.
The General Department of Defence Industry held an August 14 workshop coordinating research and production plans for military USVs and UUVs. The meeting identified active USV work at the Military Ship Design Institute, Z173 and Z189 and directed a coordinated path toward production.
In March 2026, Royal Navy mine-warfare personnel continued operator training on the SeaCat medium UUV under the Mine Hunting Capability program. The course covered system operation, mission planning, deployment, recovery, data exploitation, and routine maintenance for autonomous mine-countermeasure missions.
On May 25, 2026, SeaCat autonomous underwater capability was embarked on RFA Lyme Bay as part of the Royal Navy's minehunting package for a potential Gulf mission. The vehicle was intended to produce detailed sonar pictures of the seabed to support mine-countermeasure activity.
In July 2026, Royal Navy Zulu Unit 2 personnel received SeaCat UUV training from the Mine and Threat Exploitation Group's Operational Conversion Unit at Faslane. The Royal Navy linked the training to the unit's role in detecting and identifying seabed objects in the Clyde area in direct support of Continuous At-Sea Deterrent activity.
On June 29, 2026, the Ministry of Defence announced development of the Type 93 extra-large uncrewed underwater vessel for the Royal Navy under Atlantic Bastion. Type 93 is intended to work alongside crewed hunter-killer submarines and strengthen anti-submarine-warfare capability.
On June 25, 2026, the Submarine Delivery Agency published the SCYLLA 2A Pre Trial requirement in the acquisition pipeline with an estimated value of GBP 3.6 million excluding VAT. The planned work would address issues identified during earlier trials and prepare AUV-related hardware for possible future trial activity.
On July 7, 2026, the Submarine Delivery Agency published a UK5 transparency notice proposing a direct award to L3Harris MAPPS for SCYLLA 2A Interim work. The GBP 3.6 million excluding-VAT requirement would address issues from previous trials and preserve interoperability with the United States Navy solution under the wider AUKUS context.
On April 24, 2026, the Ministry of Defence opened preliminary market engagement for modular AUV integration frames under requirement 715850540. The requirement covers design, manufacture, delivery, sea-fastening design, assembly/disassembly and support for frames used to integrate containerised AUV equipment onto vessels with different deck configurations.
On January 12, 2026, HII doubled the size of its unmanned-systems facility in Portchester, England. The expanded site increases operational, technical, and logistics support capacity for Royal Navy and European users of REMUS UUVs. The announcement concerns sustainment infrastructure and does not disclose a new Royal Navy UUV order. (HII)
On April 17, 2026, NATO DIANA announced an R&D contract between Defence Research and Development Canada and UK-based HonuWorx. The engineering study covers extending the operating depth of the Loggerhead autonomous subsea mothership and developing simulation tools for deeper-water missions.
On June 15, 2026, the Submarine Delivery Agency published a contract-award notice for intended direct follow-on work with M Subs covering CETUS / XV Excalibur trials and evaluation.
The CETUS Trials and Evaluation contract with M Subs Ltd was signed on June 24, 2026 at GBP 6.68014721 million excluding VAT for trials using the existing XV Excalibur demonstrator.
In July 2026, XV Excalibur returned to sea as the Royal Navy continued experimentation with the CETUS extra-large autonomous underwater demonstrator. Reporting describes a shift toward functional payloads and assessment of military utility, confirming renewed sea activity but not a formal acceptance or production milestone.
On May 30, 2026, Australia, the United Kingdom, and the United States announced the first AUKUS Pillar II Signature Project focused on payloads and enabling systems for uncrewed undersea vehicles.
On March 31, 2026, UK-based ZeroUSV reported successful autonomous launch of a Teledyne Slocum underwater glider from its Oceanus12 uncrewed surface vessel during activity linked to the Royal Navy's Atlantic Bastion experimentation. The event demonstrated host-platform integration for persistent underwater sensing and ASW-related missions.
On February 12, 2026, TNI AL formally accepted and commissioned KRI Canopus-936 in Germany. Later official Pushidrosal reporting confirms that an onboard AUV formed part of the ship's underwater mission-equipment package, so the AUV capability was delivered with the host vessel rather than through a separate UUV procurement milestone.