First UK autonomous XL military submarine is put through in-water testing
The Herne XLAUV was tested off the UK's south coast. (Picture: BAE Systems)
BAE Systems in the UK has demonstrated the operation of its new XLAUV (Extra Large Autonomous Underwater Vessel), the Herne, during an assessment process off the English south coast near Portsmouth.
The Herne XLAUV was designed to give navies a sturdy “off board sensor” that could inspect undersea infrastructure, support anti-submarine warfare and deliver covert subsea surveillance.
The Herne, when deployed in the wild, has a degree of on board decision-making within its makeup, “deciding” for itself whether discovered information requires immediate surfacing and sending or whether sustained station-keeping is the more effective course of action.
The trial process involved the Herne conducting
Our news & analysis is now part of Defence Insight®
A Basic-level or higher Defence Insight subscription is now required to view this content.
More from Naval Warfare
-
Germany’s F126 delays open the door for Rheinmetall’s naval ambitions
Germany’s F126 frigate crisis has handed Rheinmetall an opening it had been working towards for years, and the company intends to make the most of it.
-
SOF Week 2026: US Navy USV completes record eight-day autonomous mission
The MARTAC T38 Devil Ray USV has set a new endurance benchmark as the US Navy pushes deeper into autonomous maritime warfare.
-
UK Royal Navy dock build question remains open ahead of Programme Euston tender
The UK MoD’s Programme Euston floating dry dock tender has exposed a question about the UK’s naval industrial base: does Britain still have the depth to sustain its own deterrent without foreign intervention.