Your tank vessel is loaded down to her marks, and you find that she has too much trim by the stern. Which of the following actions would reduce the excessive trim?
• Trim by the stern vs. by the head – what it means when the stern is too low in the water • How adding weight vs. removing weight in the forward or after part of the ship affects trim • Difference between shifting existing weight and loading/discharging new weight
• If the stern is too deep in the water, in which end (forward or aft) do you want to effectively increase buoyancy or decrease weight? • For each choice, picture what happens to the ship’s center of gravity: does it move forward or aft, and how does that change the trim? • Which action changes trim with the least change in the vessel’s overall draft (total weight)?
• Identify which options add weight to the ship and which remove weight • Check which options move weight toward the bow or toward the stern • Verify which option both: (1) tends to move the center of gravity forward, and (2) does not unnecessarily increase overall displacement if that’s avoidable
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