HeavyLift@Sea presents update of advanced SOV
At a length of 71.40m, breadth of 16.70m and maximum draught of 5.60m, the SOV is designed for optimal seagoing capabilities, the company says. Its deadweight carrying capacity is about 1,800 metric tonnes. The trial speed of 13 knots is achieved by two main engines of 1,400 kW, three auxiliary engines of 1,200 kW and two controllable pitch propellers. High manoeuvrability is realised by two high-lift flap rudders and five transversal thrusters.
The proven conventional diesel-mechanical propulsion system is more cost-efficient than azimuth thrusters or similar systems and particularly appropriate for long distances and fast transits, HeavyLift@Sea says.
Exact positioning and station-keeping (DP2) of the vessel is secured by three bow thrusters and two stern thrusters in combination with the propellers and the rudders. Several transfer systems on board enable technicians and workers to access the offshore structures, including a motion-compensated gangway and a lift arranged next to it that elevates personnel and cargo weighing up to 300kg from the main deck to the gangway system.
The SOV is available in different variants and configurations. The standard configuration serves as a base for 60 technicians and crew members but can be reduced to 40 if required.
Among the measures providing onboard comfort are 40-60 single cabins, low noise levels during operation thanks to acoustically insulated bulkheads and decks, and response to roll motions by a roll-reduction tank system.
The SOV accommodates a covered warehouse for spare parts and tools. The dimensions of the cargo hold are 10.8m x 15.2m, allowing stowage of up to six TEU containers. The cargo hold is covered by two pontoon hatch covers. The respective deck area of 300m2 gives sufficient space for service and maintenance work outside the workshops, HeavyLift@Sea says.
The knuckle boom deck crane of SWL 5 tonnes at 20m is arranged portside. Its operation is possible under harbour and offshore condition (HS = 2.50m).
