Windermere unveils new sustainable GT Mono Light class
Windermere’s third sustainable race day introduced a new national class and underlined growing momentum behind lower-carbon powerboat racing.


The Super Yacht Sub 3 continues to expand the possibilities of underwater adventures for superyacht owners. With a proven track record, having been delivered to a dozen of the world’s most iconic superyachts, it remains the premier choice in the industry.


The latest version introduces several enhancements, the most notable being the new in-house developed thruster. This advancement provides higher thrust compared to its predecessor, resulting in smoother, more precise maneuverability, all while maintaining an unprecedented level of silence. This ensures a serene and relaxing diving experience.
Additionally, the upgraded version features an enhanced USBL system with two new functions. Firstly, it enables seamless communication between the submersible and the surface by automatically relaying essential readings, such as oxygen levels and battery life. This reduces communication intervals and improves operational efficiency. Secondly, the USBL system serves as a positioning tool, providing real-time GPS information overlaid with Navionics maps. This ensures precise navigation and hazard avoidance, functioning like Google Maps for underwater use.


Comfort is paramount aboard the Super Yacht Sub 3. Upgrades to the pilot seat provide enhanced support and ergonomics for extended missions.
From minor enhancements to major upgrades, the latest version embodies the company’s commitment to excellence and innovation.
“The Super Yacht Sub 3 represents the culmination of our relentless pursuit of excellence,” said Roy Heijdra, Marketing Manager of U-Boat Worx. “With its performance, luxurious amenities, and cutting-edge technology, it redefines the possibilities of underwater exploration for superyacht owners.”
Specs SYS3
Depth – 300 m · 1000 ft
Occupancy – 2 passengers · 1 pilot
Weight – 3,800 kg
Endurance – 12 hours
Length – 320 cm
Width – 244 cm
Height – 174 cm
Battery – 21.6 kWh
Propulsion – 4 X 6 kW
Speed – 3 knots




Windermere’s third sustainable race day introduced a new national class and underlined growing momentum behind lower-carbon powerboat racing.


Forte Yachts’ debut 47-footer pairs 47-knot performance with expansive outdoor living and a rare two-cabin, two-bathroom layout.


ExploMar’s latest CIBS deal signals that commercial electric ferry operations are moving from pilot projects towards scalable deployment.


Premier Marinas expands on the River Dart with the acquisition of Dart Marina Group, reinforcing its South Coast network and…