Divers cut a large hole in the barge's hull to allow room for the submarine's sail. Workers fitted the hull of Giant 4 with large saddles shaped to fit Kursks outer hull. They cut holes through the barge to allow 26 hoisting cables to pass through. The team manufactured 26 giant cable reels to hold the more than of cable to be used to raise the boat. The giant cable reels fed 26 huge hydraulic strand jacks, each mounted on a computer-controlled, pressurised pneumatic heave compensator powered by nitrogen gas that automatically adjusted for sea waves. Giant 4 was held in position over the submarine by an eight-point mooring system from four twin-drum winches on the main deck.
