The DEEP DRILLER, loaded as shown in the Sample Load Form #4 (Drilling), discharges a non-liquid load of 275.8 long tons from a position 130 feet above the keel, 40 feet forward of amidships, and 30 feet to port of the centerline. What is the resulting trim angle?
Official USCG Answer & Rule Citation
Correct Answer: Option C — 5.18 degrees to the stern
Discharging weight off-center alters draft and trim. Calculating the new longitudinal and transverse moments yields a resulting trim angle of 5.18 degrees to the stern, determined via standard hydrostatic stability curves and trim-list interaction formulas for semisubmersible platforms.
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