Tailor-made designs from Rolls-Royce

6 October 2006

UT 734 N

Three new offshore vessels of UT-Design illustrate solutions tailor-made to suit the customer’s requirements. One of them, UT 514 L Carlo Magno, has just entered service. The second is a UT 734 N multi-functional AHTS design under construction and the third is an advanced PSV with the type name UT 751 E, ordered for a particular long-term contract.

Carlo Magno is classified as a multi-functional anchor-handling/towing/ salvage and service vessel and was built by Rosetti Marino Spa for Augustea Imprese Maritime. Augustea, a long established company, provides harbour and deep sea towage and deep sea barge transportation, and is also active in merchant shipping; owning some fifty vessels and controlling another thirty. The company’s head office is in Naples in Italy and its harbour tug operations are centred on Augusta in Sicily.

When Augustea needed a powerful vessel for open ocean barge towing, also capable of other duties such as offshore field assistance and salvage, they came to Rolls-Royce and the UT 514 L design was developed to meet these requirements.

Carlo Magno is a 55.4m long twin screw vessel with two main engines, each of 4,000kW and a bollard pull of more than 130 tonnes. Towing can be carried out either from a tow-hook or from the Rauma Brattvaag two drum waterfall winch. In addition to towing, salvage (including firefighting) and anchor-handling, the UT 514 L is equipped for general offshore service such as transporting people, pipes and equipment. Comfortable quarters are provided for a total of 24 crew and passengers. From the naming ceremony Carlo Magno went straight out on charter, barge towing in West Africa.

UT 734 N is the type name given to a new design for anchor-handling, towing, firefighting, rescue and oil recovery operations. Two examples have been ordered by Augusta Offshore with delivery scheduled from Myklebust Verft in Norway in July and November 2007.

Augusta Offshore is based in Naples, and operates its offshore fleet for oil majors worldwide, including the Mediterranean region, West Africa, Brazil and the North Sea. Since 1998 the company has come to UT-Design for nine vessels including the latest UT 734 N contract.

The 68.9m long, 16.8m beam, UT 734 N is configured as a cost-optimal design, with flexibility to handle many types of assignment. It has a powerful winch, about 1,000 tonnes of cargo can be carried on deck, and the total deadweight is approximately 2,450dwt.
Augusta has specified a full package of Rolls-Royce equipment for these two vessels, including four Bergen C25:33L6P engines in a twin screw layout.

A new and advanced PSV design, the UT 751 E, has been developed for Farstad Shipping which meets the requirements of a long term contract with Norsk Hydro. Two of these vessels will be built using a full package of Rolls-Royce equipment and systems by Aker Yards, Brevik, and the first is scheduled for delivery in mid 2007.

These 93m long diesel electric PSVs will primarily serve Norsk Hydro installations in the North Sea, running supplies from the Mongstad Base in West Norway, but may undertake other duties.

A new hull form has been developed, incorporating a bulbous bow and propulsion by twin Azipull thrusters. Despite the large carrying capacity, the hull is designed for an extremely low power requirement regardless of load at the service speed of 12-15 knots. The newly developed Rolls-Royce Automatic Sea Fastening Arrangement will be installed to secure deck cargo.