Deck General USCG Q#4661 (Set 149)

When extracting the legs from the soil, the hull of the COASTAL DRILLER may be pulled down until the draft is __________.

Official USCG Answer & Rule Citation

Correct Answer: Option A — one foot deeper than calculated afloat draft

Seamanship practices and operational manuals for self-elevating units specify that leg extraction suction forces can temporarily pull the hull down until draft exceeds calculated afloat draft by approximately one foot during breakaway.

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