Winch innovation on Damen’s new AHTS

Wed, 06 February 2013

Damen Shipyards Group has introduced the latest addition to the ongoing Damen Offshore Series, the newly designed Damen AHTS 200.

The versatile deepwater Anchor Handling Tug Supplier is able to operate in water depths in excess of 3,000m. An extensive research analysis was executed on hull optimization, sea keeping qualities, noise and vibration reduction, fuel oil consumption reduction, changing rules and regulations, clients’ needs and lessons learned from other Damen designs.

The Damen AHTS 200 includes a new and innovative winch arrangement, for the development of which Damen teamed up with Huisman Equipment in the Netherlands. Huisman specializes in heavy lift and deepwater cranes, winches and drilling equipment. The electrically driven winches resulting from this cooperation take an innovative approach, as the market is traditionally dominated by low-pressure hydraulics. The electrical-drive winches provide a clean, green, economical, functional and safe solution for the anticipated operations.

The vessel is suited to generate 200 to 250 tonnes bollard pull and is fitted with engines in a father-son layout, featuring twin-in single-out gearboxes driving CP propellers in a nozzle. High performance flap-type rudders fitted to rotary vane steering gears facilitate a high degree of manoeuvrability supported by ample side thrust capacity, including tunnel thrusters as well as retractable thrusters fore and aft ship.

Forward of the winches, ample space has been reserved for the fitting of a high end ROV system with the possibility of launching through a side door. The high beam AHTS could serve as a suitable platform for mounting a subsea construction crane. The design can easily be upgraded with dedicated anti-heeling systems, moon pools and sophisticated diving systems.

The comfortable accommodation can host up to 45 persons in single and double cabins. Special attention is paid to sufficient natural lighting through maximum sized windows. Infotainment systems offering multiple levels of data communication support the functionality and comfort of the vessel.

Although driven by its standardisation philosophy, Damen offers ample opportunities to include owner’s standards and component choices for maximum support of their operations. The vessel is designed following an extensive DNV-class notation, although other class societies may be considered as well.

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