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- Master & Chief Mate (Oceans or Near Coastal (Unlimited Tonnage)) »
- Q104 - Deck Safety: Stability Problems
108. You are on a Mariner class cargo vessel. Your drafts are: FWD 22'-06″, AFT 25'-06″. You wish to increase the calculated GM of 4.8' to 5.9'. What tanks should you ballast? (Use the white pages in the Stability Data Reference Book.)
Ballasting tanks DB2 and DB5 is correct because the white pages in the Stability Data Reference Book indicate this combination increases GM by approximately 1.1 feet, achieving the desired GM of 5.9 feet from an initial GM of 4.8 feet.
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