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AiP FROM ABS FOR US/UK OFFSHORE WIND CREWBOAT

Wednesday, August 19, 2020 

ABS has awarded Approval in Principle (AiP) to BAR Technologies and Chartwell Marine for the design and construction of an innovative 30m crew transfer vessel (CTV).

The AiP is a step towards an advanced, class-certified, Jones Act compliant fleet of offshore wind support vessels for the US market, and follows the AiP awarded to the Chartwell 24 vessel design earlier in the year.

BAR, with the support of Chartwell, developed a 30m CTV in response to a need for vessels servicing the expanding East Coast offshore wind development areas to travel further for longer, while navigating deeper waters and greater wave heights. The design makes use of FOSS technology (foil optimised stability system) to enhance seakeeping and manoeuvrability while reducing vertical acceleration by up to 70% in 2.5m wave heights. Additionally the BAR 30m CTV demonstrates up to 50% fuel efficiency savings at 15 knots, and complies with EPA Tier 4 emissions guidelines.

This initial vessel will be closely followed by a 50m variant capable of 45 knots top speed and 30 knots in a 3m high sea without exceeding vertical acceleration limits. The 40 passenger boat with a similar hull form and FOSS technology is focused on the replacement of helicopter transfer for workers in the Gulf of Mexico.

Andy Page, Naval Architect and MD Chartwell Marine, said: “This ‘rubber stamp’ from ABS paves the way for these next generation vessels to fully integrate into East Coast operations. The design of these boats has capitalized on operational experience in the global market, refining the formula for offshore wind support through ongoing research and discussion with stakeholders. With the first Chartwell 24 working in the UK and the first US Chartwell 24 in build, we are excited to work with BAR to bring a further, highly versatile option to the US market.”

John Cooper, CEO, BAR Technologies, said: “Approval in Principle for the BAR 30m CTV is an important development that broadens the opportunities for cross-market collaboration. As we work towards the decarbonisation of the workboat sector, this latest innovation represents new gains in efficiency which have been achieved by placing the operational profile at the forefront of vessel design. In this way, we have been able to design a CTV that combines optimal performance in challenging conditions with a significantly reduced environmental impact.”

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