Three Seismic Research Support Vessels for Rederij Groen

The delivery of the ‘7-Oceans’ to offshore services company Rederij Groen (Scheveningen, the Netherlands) marks a new milestone in Offshore Support Vessel construction. The vessels have been designed in close cooperation with both Rederij Groen and their customer. The Seismic Research Support Vessel is constructed by Maaskant Shipyards Stellendam, part of Damen Shipyards Group, and the first of a serie of three identical vessels.

Charterer Dolphin Geophysical opted for a 35m design from Vestvaerftet in Denmark. This design is even closer to a fishing vessel compared to the two 40m newbuilds Maaskant delivered to Rederij Groen last year.

For optimal manoeuvrability two Veth azimuth stern drives (ASD) were chosen. They are each driven by an active front end, frequency controlled electric motor of 500 kW each. Power is generated by three Caterpillar C18 generator sets of 525 kVA. Also a 90 kW electric bow thruster is fitted. Accommodation is arranged for a crew of 6 with extra capacity for 8 service crew. The electronic package complies with an A4 service area, which enables the vessel, in combination with the ICE-class notation, to operate in Artic areas.

The deck arrangement is similar to the earlier delivered SRSV’s Astra-G and Aquarius-G, which have been proven to be efficient in their first year of operation.

General and technical summary
Yard Number : 612 / 613 / 614 (Maaskant)
Delivery date : July 2014 / October 2014 / March 2015
Basic functions : Guard / Chase vessel
Classification : Lloyd’s Register
Flag : Panama
Owner : Rederij Groen B.V. Scheveningen

Dimensions
LOA : 35.00 m
Beam : 8.70 m
Depth : 4.40 m
Gross Tonnage : under 500
Speed : 12 knots

Propulsion system / aux. equipment
2 Veth azimuth stern drives (ASD)
3 Caterpillar C18 gen.sets, 525 kVA
90 kW electric bow thruster

Accommodation www.rederijgroen.nl
6 crew and extra capacity for 8 service crew.
www.maaskant-shipyards.nl
www.damen.com

Damen Shipyards Group
Damen Shipyards Group operates 40 ship- and repair yards, employing 8.000 people worldwide. Damen has delivered more than 5.000 vessels in more than 100 countries and delivers approx. 180 vessels annually to customers worldwide. Based on its unique, standardised ship-design concept Damen is able to guarantee consistent quality.

Damen’s focus on standardisation, modular construction and keeping vessels in stock leads to short delivery times, low ‘total cost of ownership’, high resale value and reliable performance. Furthermore, Damen vessels are based on thorough R&D and proven technology. Damen offers a wide range of products, including: tugs, workboats, naval and patrol vessels, high speed craft, cargo vessels, dredgers, vessels for the offshore industry, ferries, pontoons and super yachts.

For nearly all vessel types Damen offers a broad range of Services, such as maintenance, spare parts delivery, training and transfer of (shipbuilding) know-how. To complete, Damen offers a variety of marine components, especially nozzles, (flap-type) rudders, steering gear, anchors, anchor chains and steel works.

Damen Shiprepair & Conversion
In addition to ship design and shipbuilding, Damen Shiprepair & Conversion offers a network of 16 repair & conversion yards worldwide, with dry docks ranging up to 420x80 metres. Conversion projects range from adapting vessels to today’s requirements and regulations to the complete conversion of large offshore structures. DS&C handles 1,500 repair and maintenance jobs annually.

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