One2three Naval Architects

11/05/2026

His Majesty King Charles III stepped aboard JL Cecil Smith in Bermuda last week, the second of our ferries to be graced with his presence!

19/02/2026

18/02/2026

Check out Uber Boat Thames Clipper’s First fully electric Freight boat!
Another successful collaboration with Wight Shipyard

23/12/2025

Recent trip to New Orleans Work Boat Show and proud to be nominated for one of the United States 10 most significant Boats in 2025. You can see Karl cruising the San Fransisco Bay along with passenger ferries Dorado and Delphinus.

23/12/2025

Proudly Designed by One2three Naval Architects

29/10/2025

Congratulations 🙌

12/10/2025

How gorgeous are these drone shots from
Showcasing our three hybrid electric Uber Boat Thames Clippers. Number four is due pre Xmas

09/10/2025

Congratulations Sentinel Boats!
We are proud to have been your design partner for 15 years

08/10/2025

03/09/2025

The production of a twin-masted DynaRig for ASC58 has begun at our Southern Spars facility in Poland. It is set to be the world’s largest sailing catamaran and the first ever 'cat', to carry this ground breaking rig. 🛳

The vessel has been designed by Dykstra Naval Architects and One2three Naval Architects, and built by Echo Yachts.

The ASC58 will feature:

⚓Two free-standing, rotating masts
⚓Fully automated sail-handling managed by one operator
⚓1,660m² of sail power for efficient, low-emission cruising

This marks the next step in the evolution of the modular DynaRig.

Follow the link to read more: https://southernspars.com/portfolio/dynarig_largest_catamaran/