You are making a heavy lift with the jumbo boom. Your vessel displaces 8530 T. The 40-ton weight is on the pier and its center is 65' to starboard of the centerline. The head of the boom is 115' above the base line and the center of gravity of the lift when stowed on deck will be 50' above the base line. As the jumbo boom takes the strain the ship lists to 5°. What is the GM with the cargo stowed?

Question

Accepted Answer

Option D: 3.77 ft. Heavy lift math requires evaluating the virtual center of gravity shift when the weight leaves the pier. Utilizing the given 8530-ton displacement, 65-foot outreach, and 5-degree list results in a stowed GM of 3.77 ft.