GONDAN Signs Contract to Build a Second Offshore Tug for Østensjø Rederi

With this high-capacity sister vessel, designed to operate in the most demanding offshore environments, the shipyard will have built a total of 23 vessels for the Nordic shipowner.

GONDAN Shipyards has signed a new contract for the construction of an offshore tug for Østensjø Rederi, based on the Skipsteknisk ST-933 design and a sister vessel to the tug contracted by the Norwegian shipowner last November.

Measuring 50 metres in length, with a maximum beam of 17 metres and a bollard pull of 150 tonnes, the new tug has been designed to operate in highly demanding offshore environments. Its DP-2 dynamic positioning system provides exceptional precision and manoeuvrability, while its innovative configuration enables towing operations from both the bow and the stern using a single high-capacity combined winch.

The project incorporates significant advances in efficiency, sustainability and operational flexibility. The tug will feature a hydrodynamically optimised hull developed using advanced computational simulation tools, a hybrid architecture with a direct current (DC) electrical distribution system, and will be prepared for the future use of methanol as fuel. This configuration will enable the vessel's operating mode to be adapted to its actual load profile, reducing fuel consumption and emissions while facilitating the future integration of technologies such as batteries or fuel cells without the need for major structural modifications. Altogether, this makes the vessel a compact, versatile and highly efficient solution for towing, escort and offshore support operations.

This new contract marks the 23rd vessel built by GONDAN for the Norwegian shipowner, further strengthening a long-standing relationship based on collaboration, mutual trust and the development of high value-added shipbuilding projects.