Conversion of the Ocean Troll

The two survivor units were transported from the workshop to the quay and lifted into position The two survivor units were transported from the workshop to the quay and lifted into position

MMS Ship Repair, based in Hull UK, has recently completed a conversion to the Atlantic Offshore Rescue vessel Ocean Troll.

The job called for converting the Ocean Troll, an offshore anchor handling supply vessel, into a safety standby vessel. The works required the fabrication of a fully equipped accommodation unit and the installation of equipment on the vessel’s aft deck. All work was carried out to Det Norse Veritas class requirements.    

MMS attended the vessel whilst it was making a port call into Stavanger, Norway to survey the vessel and provide the owners with a proposal and quotation. Owners Atlantic Offshore Rescue  then awarded the contract to MMS.

MMS then proceeded in ordering materials and equipment, in particular items which required a longer lead time. MMS also arranged with the owners to make another visit to the vessel during its next port call. This was attended by MMS to assess the job first hand. Planning and preparation on works such as this conversion is vital to ensure all work is carried out satisfactorily and as fast as is practicable.  

On this particular vessel, the survivor units were designed in two sections spread apart on the centre line of the vessel so the Ocean Troll could still operate its main towing winch.  MMS fabricated and outfitted the units in one of the company’s workshops adjacent to the MMS non-tidal quay berths.

Upon arrival the Ocean Troll’s aft deck was cleared, which included removing a deck house and various equipment. The two survivor units were transported from the workshop to the quay and lifted into position. The vessel was then dry docked for class renewal work and final installation of the accommodation units.

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