The keel laying ceremony for the Yno 1121, one of the Ulstein-designed Acta Marine TWIN X-STERN CSOVs at the Tersan Shipyard, was arranged on 1 June 2023.
The DP2 Construction Service Operation Vessel is powered with Methanol and MDO/HVO. Acta's vessels were the first CSOVs to incorporate the TWIN X-STERN.
The offshore wind service vessel designs from Ulstein have been developed for effective support of the commissioning, operation and maintenance of offshore wind farms.
All four CSOV vessels are based on the ULSTEIN SX216 design. The SX216 vessel has a length of 89,9m, a beam of 19,2m and accommodates up to 135 POB. It has a walk-to-work (W2W) motion-compensated gangway for safe personnel transfer to the turbines, a 3D-motion-compensated crane for cargo transfer, and it can carry a daughter craft for in-farm transfers.