420. The COASTAL DRILLER, with no list, is at a true mean draft of 10 feet and 10 inches. LM is 1,699,463 ft-kips. Using only tanks 1, 25, and 26, how many kips of drill water must be transferred to level the jack-up?

To level the jack-up, transfer 53.1 kips from each of tanks 25 and 26 forward to tank 1. This creates a corrective trimming moment equal in magnitude and opposite in direction to the existing trim, based on the longitudinal distances of the tanks and the vessel's LM.