Tidewater orders Wärtsilä-designed arctic PSV

A second confirmed design contract for Wärtsilä’s new series of arctic platform supply vessels has been signed.

Tidewater orders Wärtsilä-designed arctic PSV

This latest order is for a multi-purpose platform supply vessel (MPSV) being built by Tersan Shipyard in Turkey on behalf of U.S.- based Tidewater Inc, the leading provider of offshore service vessels to the global energy industry. The vessel will be operated by the Norwegian Troms Offshore Supply Group, a 100%-owned subsidiary of Tidewater. There is an option for further three similar vessels.

In a press release issued today, Finland’s Wärtsilä says that a key element in the award of this contract was Tidewater’s requirement for a compact design yet with a high deadweight giving maximum cargo capacity. Operational efficiency and reduced fuel consumption were among the other reasons why the Wärtsilä solution was selected. The vessel is designed to fit three Wärtsilä 8-cylinder in-line Wärtsilä 26 main engines, propulsion systems, a ballast water management system, and inert gas generators. The vessel is scheduled for delivery in 2016.

“Once again, Wärtsilä Ship Design’s deep understanding of the complexities involved in operating in the harshest climatic conditions, and its ability to produce a design that fully meets the customer’s expectations has been rewarded with a significant order. Wärtsilä’s total solution capability, combining a strong and efficient design with fuel saving propulsion, is increasingly important in the market for ice class vessels,” says Riku-Pekka Hägg, Vice President, Ship Design, Wärtsilä Ship Power.

The Wärtsilä design means that the ship will be strengthened and equipped for arctic conditions, with the hull and propulsion in compliance with DNV ice class ICE 1A. This verifies that the vessel has sufficient strength, power, and equipment to operate in arctic areas. Furthermore, the vessel will be readied for cold climate conditions according to the DNV DEICE class. This notation includes requirements for maintaining safety and vessel operability in ice, under icing conditions, and at low temperatures.

The vessel is also prepared for advanced subsea operations with an active heave compensated construction crane with 150t capacity which can be quickly and easily fitted when required. For the same reason the vessel is prepared for helicopter deck which would usually be needed during extensive subsea construction activities.


Fact box:
VS 4530 MPSV
Length over all 89.10 m
Length between p.p. 80.10 m
Breadth moulded 22.00 m
Depth to 1st Deck 9.00 m

Main engines: Three 8-cylinder in-line Wärtsilä 26 engines, each with an output of 2720 kW
Tunnel thrusters
Retractable thrusters
Main propulsion: 2 x 3000 kW Azimuth Thrusters
Ballast water management system
Inert gas generators

August 07, 2014


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