Deck Rules (Supplementary) USCG Question #2238 (Set 7)

A vessel is limited to a maximum draft of 26'-03". The present drafts are: FWD 21'- 04", AFT 24'-06". How much more cargo can be loaded and where should it be located if a drag of 1 foot is desired? (Use the reference material in Section 1, the blue pages, of the Stability Data Reference Book)

Official USCG Answer & Rule Citation

Correct Answer: Option B — 1676 tons 18 feet forward of the tipping center

Trim calculations using the Stability Data Reference Book involve moment to change trim (MT1) and distance from the tipping center. To achieve the desired 1-foot drag without exceeding maximum draft limits, 1676 tons must be positioned exactly 18 feet forward of the tipping center.

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