Happy Star's extraordinary features offers unique lifting capabilities for the heavy lift and project cargo market up to 2,200 mt in tandem lift. Her lifting curve ranges from 2,200 mt at 21 m, 1,800 mt at 25 m, 1,600 mt at 28 m to 1,000 mt at 41 m, with a lifting height of nearly 47 m above the main deck.
With the weather deck extending over the full width of the vessel, her load space can be used to the utmost. The weather deck hatch covers are pontoon type and bear 15 t/m2. The tweendeck is adjustable in height and Happy Star can sail with open weather deck hatches on a draught of up to 8 m. The vessel has Finnish/Swedish 1A Ice Class notation.