In addition to all of your annual favorites, this year sees a supersized July 4 weekend — and the return of the Festival of Sail.

In addition to all of your annual favorites, this year sees a supersized July 4 weekend — and the return of the Festival of Sail.

It was formally unveiled and named Excalibur at HMNB Devonport in front of 200 guests and VIPs, including Rear Admiral James ...

The Royal Navy has unveiled its first uncrewed submarine – paving the way for how the UK could operate in the underwater ...

A prototype of the unmanned 19-tonne vessel, named Excalibur, was launched at Devonport naval base last week and will pave ...

Britain’s largest naval base, the Royal Navy unveiled a silent predator with no crew aboard — the extra-large uncrewed ...

The Royal Navy has unveiled its first uncrewed submarine, Excalibur, marking a significant step forward in the UK's ...

The U.K. Royal Navy has unveiled Excalibur, its first and largest Extra-Large Uncrewed Underwater Vessel (XLUUV) tested to ...

The British Royal Navy has officially announced the introduction of the Excalibur, its first uncrewed submarine and currently ...

A large new autonomous submarine that will scan the seas for the Royal Navy has been unveiled for the first time.

The submarine was officially unveiled and christened Excalibur at HMNB Devonport on Thursday, May 15, in front of an audience ...