Ulstein Delivers Two Tug/Supply Vessels To Norwegian Owners

Ulstein Hatloe A/S in Ulsteinvik, Norway, recently completed two identical tug/supply standby and service vessels for Norwegian owners.

The Gullbas (photo) was delivered to Saevik Supply Management of Fosnavaag, and the Troms Skarven to Troms Fylkes Dempskibsselskap of Tromsoe. The two vessels, first of the new UT 716 design, will be operating on a five-year charter to Statoil, the state-owned oil company, in the Gullfaks Field.

The vessels have an overall length of 261.5 feet, beam of 59 feet, and depth to main deck of 27.9 feet.

Deadweight at maxiumum draft of 19.5 feet is 2,690 tons. Built to Det norske Veritas classification, the vessels also meet the rules and regulations of the Norwegian Ship Control for worldwide trading, SOLAS 1978, International Convention on Load Lines 1969, and Marpol 1973.

Propulsion is provided by twin KVMB-16 Bergen Diesel engines, each with an output of 3,942 bhp at 825 rpm, driving Ulstein controllable- pitch propellers via Lohmann & Stolterfoht reduction gears. Ulstein also supplied a 1,200-hp bow thruster, 1,000-hp gyro thruster, and two 1,000-hp stern thrusters. Electrical power is supplied by Bergen/Siemens generator sets. Maximum speed is 15.5 knots, but the vessels will normally be operated at the economic speed of 11-12 knots.

The fire-fighting plant supplied by Thune Eureka consists of three water monitors, each with a capacity of 2,400 cubic meters per hour, a throw length of 160 meters at 60 degrees, and a throw height of 120 meters at 60 degrees. There are also two foam monitors on each vessel.

For additional information on the Ulstein shipyard.

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Maritime Reporter Magazine, page 10, Jun 1986

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