Deck General USCG Question #23 (Set 1)

Your vessel's existing draft is FWD 19'-02", AFT 20'-10". Using the Guidance Manual for Loading M.V. GRAND HAVEN, determine the new draft if 170 long tons are discharged from No. 8 hatch.

Official USCG Answer & Rule Citation

Correct Answer: Option B — FWD 18'-10.8", AFT 20'-10.4"

Discharging weight from No. 8 hatch, located aft of the center of flotation, reduces the aft draft significantly while slightly decreasing the forward draft due to the vessel's longitudinal trim characteristics. Calculations using the Grand Haven loading manual confirm the new drafts are 18'-10.8" forward and 20'-10.4" aft.

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