The Alfa Lift design offers particular benefits for jacket installation campaigns. The deck of 148 m length and 56 m width offers an area suitable for up to 10 x 1,500 mt jackets for each round trip.
OHT’s philosophy is to minimize human intervention and to make a solution that minimizes weather downtime. A fully automated system will transport the jackets from the storage position into reach of the crane. Before installation the vessel can submerge to reduce motions. The extra time this will take will be more than outweighed by allowing the installation to take place at higher sea states, thus extending the operational window.
During installation the vessel will primarily be relying on its dynamic positioning system. This allows for the shortest possible preparation time for each installation avoiding time for jacking or mooring operations. As a backup the vessel will be outfitted with a DP assisted offshore mooring system.
The forecastle deck is prepared to carry cargo on an area of 2,470 m2. This can be used for mission equipment as required.