PROJECT NAME
ASC58
RIG TYPE
DynaRig
LENGTH
58 metres
BUILDER
Echo Yachts
NAVAL ARCHITECT
Dykstra Naval Architects & & One2Three Naval Architects
RIG PARTNER
Southern Spars
YEAR
2024 / 2028
STATUS
In Build
Echo Yachts
Project ASC58 demonstrates how DynaRig technology can support a new generation of efficient, long-range vessels
Currently under construction at Echo Yachts in Western Australia, the 58-metre adventure sailing catamaran is set to become the world’s largest sailing catamaran and the first catamaran equipped with a twin-masted DynaRig system.
The project brings together the wind-propulsion knowledge of North Windships with the carbon engineering capabilities of Southern Spars and the sail design expertise of North Sails, illustrating the value of an integrated, whole-system approach.
A New Application for DynaRig Technology
Designed by Dykstra Naval Architects and One2Three Naval Architects, ASC58 will feature two free-standing, rotating carbon masts carrying approximately 1,660 square metres of sail area.
Unlike a conventional rig, the DynaRig carries its sails between curved yards, creating an efficient and continuous sail surface. The masts rotate to control the angle of the sails to the wind, while deployment, furling and trimming are automated.
The complete sail plan can be managed by a single operator through a digital control system. This reduces the manpower normally associated with a sailing vessel of this scale and allows the crew to respond quickly to changing conditions.
Rapid and straightforward sail handling is central to the DynaRig concept. By making the sailing system easier to operate, ASC58 will be able to spend more time harnessing wind as its primary source of propulsion.
Southern Spars Carbon Engineering
Southern Spars is engineering and manufacturing the twin DynaRig system, with production underway at its specialist facility in Ustroń, Poland.
The two free-standing masts are being produced using advanced carbon fibre reinforcements and precisely moulded components. Each structure must balance strength, stiffness and reduced weight while withstanding the substantial loads generated by the yacht’s 1,660-square-metre sail plan.
The absence of conventional standing rigging also creates a cleaner deck arrangement, leaving valuable space for ASC58’s helipad, tenders and specialist expedition equipment.
Echo Yachts
North Sails: Turning Wind into Propulsion
The carbon rig is complemented by a sail package from North Sails, bringing sail design, aerodynamic modelling and performance optimisation into the wider propulsion system.
On a vessel of this scale, the relationship between the sails, rotating masts, hull and control systems is critical. The sails must maintain an efficient aerodynamic shape while supporting reliable deployment, furling and automated operation.
By considering the rig and sails as one connected system, the project can convert available wind into practical propulsive power across a broad range of operating conditions.
Designed to Travel Farther with Less Fuel
ASC58 has been developed for long-range adventure cruising, wreck exploration, diving and sportfishing expeditions. She can also operate as a shadow or support vessel for larger superyachts.
Her efficient aluminium hull is combined with controllable-pitch propellers, shaft generators and a high-capacity battery system. While sailing, the propellers can help regenerate electrical energy, supporting quiet operation without relying continuously on the vessel’s engines.
Echo Yachts anticipates a maximum speed of approximately 14 knots under motor and up to 18 knots under sail before sail reduction. When conditions allow, the DynaRig will enable the yacht to undertake extended passages using wind power alone.
A Whole-System Approach to Wind Propulsion
For North Windships, ASC58 provides an important demonstration of what becomes possible when wind propulsion is considered as part of the vessel’s complete design.
Effective wind-assisted and primary wind propulsion depends upon more than the rig itself. Vessel type, operating profile, sail area, aerodynamics, automation, power generation and onboard integration must all be considered together.
As North Technology Group’s consultancy gateway for commercial wind propulsion, North Windships draws upon established knowledge from across the group. Southern Spars contributes advanced carbon spar engineering and structural expertise, while North Sails brings sail design, aerodynamic analysis and performance optimisation.
This combined capability supports vessel owners, designers and operators from early feasibility assessment through to the development of a practical wind-propulsion solution.
Extending the Possibilities of Wind Power
Although ASC58 is a highly specialised sailing catamaran, the principles demonstrated by the project have much wider relevance.
Automated sail handling, modular carbon structures and integrated performance modelling can make wind propulsion increasingly practical for large yachts, commercial vessels and cruise ships. These systems can reduce fuel consumption, extend operating range and help vessels meet increasingly demanding emissions targets.
Project ASC58 is therefore more than a landmark yacht. It is a full-scale example of how established sailing principles, advanced materials and modern control technology can work together to place wind at the heart of future vessel propulsion.
