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    Rolls-Royce breaks the ice with offshore contract

    News // January 21, 2005
    Rolls-Royce has provided more details about the contract it has won to supply design and equipment packages for three icebreaking offshore supply vessels. The vessels will be built at Aker Langsten shipyard in Norway for Swire Pacific Offshore based in Singapore for operation in the Sakhalin region.

    Swire Pacific Offshore has chosen an entirely new design, the UT 758 ICE, developed by the UT-Design division of Rolls-Royce. UT 758 ICE is a 90m long platform supply vessel with a 19m beam which can navigate independently in thick ice, carrying both deck and bulk cargo, and can also operate in safety standby, firefighting and pollution prevention roles. It is one in a series of icebreaker designs developed by Rolls-Royce; a series that includes anchor handlers, tugs and escort icebreakers in various sizes and powers.

    "Ice going vessels are expected to be in greater demand as offshore activities move into high latitudes such as the Barents Sea and the Sakhalin region. For this reason, we have spent the past few years analysing vessel types of interest and taking a number of designs to a high level of detail" said sales manager Atle Gaasų. "We are pleased that Swire Pacific Offshore has chosen the UT 758 ICE for this challenging operation. We have had a positive working relationship with Swire over many years. With these three icebreakers, SPO has 37 UT-Design vessels in its fleet or under construction."

    Deputy design manager Svein Kleven said the challenge for the UT-Design team had been to combine the requirements of a PSV - a large deck area, high deadweight and ability to carry large quantities of cargo on deck - with the hullform and manoeuvrabilityof an icebreaker. The result is an entirely new design, in which a high level of icebreaking capability does not detract from the essential supply vessel function.

    Motions in a seaway are controlled by hull shape and a passive tank roll reduction system and there is a heeling system for ice going. There are no fuel tanks against the hull, and other clean design features are included.

    The Swire Pacific Offshore icebreaking PSVs will have Ice-10 class and De-ice, Standby and Dynpos AUTR notation. To reduce ice formation the superstructure and deck layout is uncluttered, with mostly internal passageways, while rescue boats are housed inclosable heated shelters. Masts are heated, and engine room waste heat is used to keep decks ice-free.

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