'Shark 30' - A 58m Anchor Handling Tug / Supply Vessel

May 31, 2009

Cheoy Lee’s 58-metre anchor handling tug/supply vessel is a model in high demand, with five units currently under construction, all destined for operation in the Middle East.

One of these vessels, ‘Shark 30’ (Cheoy Lee yard number 4,969), delivered to the owner in February, was the first of a two-vessel order for a long standing customer and will shortly be entering service.

The Kuwait-flagged vessel is destined to supply, support and act in the capacity of a safety vessel for offshore drilling and work-over rigs on a twenty-four hour per day basis in the Arabian Gulf. Specific duties will include the transport of fresh water, diesel oil, bulk cement, liquid mud, stores, materials and equipment, towing/moving drilling and work-over safety rigs, anchor handling duties, transporting people and materials between platforms and shore, and the evacuation of casualties.

The design, now well proven, originated from Singapore-based naval architects Conan Wu & Associates and incorporates an all-steel hull and superstructure. The vessel is constructed to ABS class with the notation: "ABS +A1(E), + AMS, FIFI 1, Towing and Anchor Handling Services".

'Shark 30' can accommodate a complement of twenty-two. All are housed in the forward part of the vessel. On the main deck level there is one four man cabin, although this deck predominantly contains the service and recreational areas, the galley, mess rooms, sick bay and cold stores. The accommodation on the forecastle deck level includes individual cabins for the captain and chief engineer, along with three double and two quadruple-berth cabins. The working deck aft is over 30 metres long, with an area of approximately 350m2. The deck is sheathed in wood to protect the steel deck plating during anchor handling and towing operations. Deck plating in way of the towing gear is 20mm thick.

Propulsive power is supplied by two air start Caterpillar 3516B diesel engines, each producing 1,920kW, driving Nakashima controllable pitch propellers in nozzles via Twin Disc MGR 1727VC 7:1 reduction gearboxes.

Manoeuvrability is enhanced by a 12-tonne Schottel bow thruster, directly driven by an 842.6kW Caterpillar diesel engine. Electrical power is developed by three Caterpillar 320kW diesel generating sets, each independently capable of supporting the ship’s loads. In addition, there is a 72kW back-up set that also serves as a harbour generator.

Deck winches are from MacGREGOR Plimsoll, and include a 200-tonne towing/anchor handling winch, a ten-tonne anchor windlass, two ten-tonne tugger winches, and two five-tonne capstans. Towing equipment also includes triplex towing pins and a shark jaw. On deck, there is also a five-tonnes-at-six-metres Palfinger crane to handle the rescue boat and to load provisions.

With a fuel capacity of 400 tonnes, the vessel has a range of 6,500nm at the maximum speed of 12 knots. Fuel is cleaned by an Alfa Laval purification system, as is the lube oil. The vessel is also able to carry 485 tonnes of fresh water, 10m3 of fire fighting foam, 10m3 of dispersant for tackling oil spills, 210m3 of liquid mud and 400 tonnes of dry bulk.

For further information contact:
Cheoy Lee Shipyards, Hong Kong, China.
PH: +852 2307 6333,FX: +852 2307 5577,
Email: info@cheoylee.com,Web: www.cheoylee.com













Page 24, Work Boat World May 2009