How much additional solid weight could be...

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Question 1 of 2066636ee728f7522a1c51833c

How much additional solid weight could be loaded at a VCG of 189.7 feet on the DEEP DRILLER while loaded as shown in the Sample Load Form #4 (Drilling)? Assume ballast added or discharged to maintain draft is done so at 15 feet above the baseline.

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🔍 Key Concepts

• Use the Sample Load Form #4 (Drilling) to find the present displacement, VCG (KG), and any posted maximum allowable VCG for that displacement/condition. • Understand how adding a solid weight at a given VCG (189.7 ft) and adding/discharging ballast at 15 ft affects the combined VCG using the moment = weight × height relationship. • Set up an equation for the new combined VCG after adding cargo and compensating ballast, and compare it to the allowable limit to find the maximum extra solid weight.

💭 Think About

• What is the current displacement and VCG of DEEP DRILLER in Sample Load Form #4, and what is the maximum allowable VCG (or minimum GM) for that operating condition? • If you add an unknown solid weight at 189.7 ft and adjust ballast at 15 ft to keep the same draft, how do the added moments (weight × height) from each affect the overall VCG? • How can you write one equation that expresses the new VCG in terms of the unknown added solid weight, then set that equal to the allowable VCG to solve for that weight?

✅ Before You Answer

• Be sure you are using the correct displacement and current VCG from Sample Load Form #4, not from another sample condition. • Confirm you are using consistent units (long tons and feet) and the correct moment = weight × height formula for each added or removed weight. • Verify that you accounted for the ballast change at 15 ft with the correct sign (added vs. discharged) so that the final draft remains constant.

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