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    Thoma-Sea launches OSV

    Vessel & ROV News // August 25, 2000
    Thoma-Sea Boatbuilders of Houma, Louisiana, has launched the first of two 46m offshore supply vessels (OSVs) it is building for Massie Towing of Houma. Frank Basil of Intech & Associates, also located in Houma, designed the vessels.The first vessel, the M1, entered service in mid-June, and the second is due to be launched in December. Both will operate in the Gulf of Mexico.At 45.8m in length they have a beam of 11m, and draft of 3.4m. They are designed to accommodate 18 passengers plus four crew.Propulsion for the OSVs comes from twin Cat 3508EUI marine engines, each rated at 906bhp (675kW) at 1,600rpm. The engines drive Bird-Johnson propellers through Twin Disk gears, providing a service speed of 14kt.The M1 is also fitted with a Schottel bow thruster powered by a Cat 3406C, and has a Crane Deming 2,000 gallon per minute fire-fighting pump driven by a Power Take-Off from the 3406C.The newbuildings have 2,646 square feet (246 square metres) of deck cargo area and tanks for liquid mud, fresh water, potable water, sewage and three tanks for bilge water, dirty oil and clean lub oil.

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