Chartwell Launches Hydrofoil Offshore Support Vessel – reNews

Chartwell Marine has launched its first Offshore Energy Support Vessel (OESV) with hydrofoils, in partnership with marine design and engineering consultancy, BAR Technologies (BAR Tech).

Seacat Sceptre, built at the Diverse Marine yard in Cowes, Isle of Wight, for class-leading OESV operator Seacat Services, will now undergo sea trials before her handover.

Hydrofoils, repopularized and matured as technology in high-end yacht racing, lift the hull in the water in transit to reduce frictional resistance, improving fuel efficiency and stability.

The Foil Optimization and Stability System (FOSS), developed and patented by BAR Technologies, combines America’s Cup heritage and expertise with Chartwell’s award-winning high-speed vessel design to solve growing emissions and efficiency challenges faced by the offshore energy sector.

FOSS reduces hull drag by positioning the lift foil close to the transom and controlling racing trim to ensure the hull is operating at its most efficient trims throughout the speed range.

In addition to contributing to a 30% improvement in fuel efficiency through wake reduction, FOSS improves seakeeping and handling through overall motion damping, active roll and throttle response. plate, according to Chartwell.

It also offers improved maneuverability and stability in varying sea conditions.

The vessel was launched in response to the offshore wind industry’s rigorous standards of operational excellence, tested against the combined pressures of servicing larger, more remote sites and the need to reduce costs and carbon intensity.

Chartwell and BAR Tech are developing new technologies to enhance proven industry platforms – such as Chartwell Catamarans – with enhanced functionality and incremental improvements in fuel efficiency and associated emissions performance.

The Seacat Scepter FOSS system is the first in this series of collaborative designs developed by Chartwell and BAR Tech, with a pioneering BARTech 30 vessel design set to launch in summer 2022.

The first orders for both designs have been placed by Seacat Services as part of the company’s ambition to lead the adoption of energy efficient vessels and technologies in offshore wind.

Andy Page, Managing Director of Chartwell Marine, said: “Improving operational and environmental performance is a challenge facing all maritime sectors. Collaboration between these sectors and the sharing of expertise is therefore a natural response to the call for decarbonization, without ever losing sight of critical operational issues. requirements of the demanding offshore wind sector.

“Optimizing the hull form is a critical component when designing a holistic and phased approach to emission reductions; ensuring that energy-efficient technologies can build on the strongest foundation of operational and environmental performance and generate maximum benefits for the sector.”

BAR Technologies Managing Director, John Cooper, said: “Technologies such as FOSS create additional opportunities for market-leading vessel designs to adapt and meet the emerging demands of their customers, not only in reducing emissions, but also improving vessel performance, comfort and operating window – in the case of FOSS, minimizing movement of crew and engineers on board to ensure they reach wind turbines quickly, throughout the year and with a minimum of fatigue.

“Working with Chartwell and Seacat to understand and adapt to best practices in OESV design and operation has led to the development of a hydrofoil system that actively dampens vertical accelerations in varying sea conditions – allowing for faster transfers and wider operational windows, while maintaining passenger and crew comfort.”

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