The rotary of the COASTAL DRILLER is located...

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Question 1 of 2066636ee728f7522a1c5187f1

The rotary of the COASTAL DRILLER is located 34 feet aft of the transom and 2 feet to port of the centerline. With the changes to lightweight shown in the Operating Manual, the maximum allowable hook load is __________.

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Question 1 of 20

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🔍 Key Concepts

• Hook load limitations in the Operating/Trim & Stability Manual for COASTAL DRILLER • Effect of rotary table location (longitudinal and transverse) on allowable load and stability/moment limits • How lightweight changes affect allowable vertical and horizontal loads at the rotary

💭 Think About

• Which table, curve, or graph in the Operating Manual links rotary position and hook load to a maximum allowable value? • How do you apply the given offsets (34 ft aft of transom, 2 ft to port) to the manual’s data: do you interpolate, select a specific row/column, or apply a correction? • Does the manual require you to reduce the theoretical maximum hook load because of updated lightweight and stability limits?

✅ Before You Answer

• Locate the exact rotary-load table/graph in the Operating or Stability Manual that corresponds to the COASTAL DRILLER and its most recent lightweight data. • Confirm you are using the correct reference point (transom vs. midships) and that “aft” and “port” are applied in the same sense as the manual’s sign convention. • Verify whether the Operating Manual specifies a new lower maximum hook load after lightweight changes, and confirm that your selected choice does not exceed that updated limit.

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