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BAR, and Chartwell get ABS approval

By: Tom Russell 18/08/2020 Chartwell Marine

General Vessels

BAR Technologies and Chartwell Marine have been awarded Approval in Principle (AiP) from the American Bureau of Shipping (ABS) for the design and construction of a new BAR 30m crew transfer vessel (CTV).

BAR, with the support of Chartwell, developed the 30m CTV, making use of FOSS (foil optimised stability system) technology to enhance seakeeping and manoeuvrability, while reducing vertical acceleration by up to 70% in 2.5m wave heights. The companies claim that while offering greater levels of availability in rough seas, the BAR 30m CTV also demonstrates up to 50% fuel efficiency savings at 15 knots, keeping emissions at bay in line with EPA Tier 4 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.

This new design will work in partnership with the vessels in the Chartwell 24 range, including the Right Whale variant. Alterations to the hull form of the latter have been made to adhere to the legislation in place that protects the migration route of the Right Whale on the East Coast, along with optimized propulsion configurations to meet EPA Tier 4 emissions standards.

Securing AiP offers the highest level of assurance that these vessel designs will be built in-line with specific US requirements. As part of the AiP process, the vessel designs have met criteria from the ABS Rules for Building and Classing High Speed Craft 2020. This provides validation that they are well-placed to meet the demands and regulatory requirements of US operations.

Andy Page, Naval Architect and Managing Director at 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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BAR, and Chartwell get ABS approval

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