Considering the changes to lightweight shown...

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Question 1 of 2066636ee728f7522a1c5177dd

Considering the changes to lightweight shown in section 5 of the COASTAL DRILLER Manual, the maximum allowable combination of hook, rotary, and setback load for the COASTAL DRILLER with the rotary located 34 feet aft of the transom and two feet to port of the centerline is __________.

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Question 1 of 20

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🔍 Key Concepts

• How changes in lightweight and loading condition affect maximum allowable hook/rotary/setback loads on a drillship or MODU • How transverse and longitudinal location of the rotary (aft of transom, to port of centerline) influence stability and allowable loading • Using the correct loading manual / capacity table for the specified configuration (rotary offset and revised lightweight)

💭 Think About

• First, identify the correct loading condition and revised lightweight section in the COASTAL DRILLER Manual that matches the question setup. Which table or curve applies when the rotary is 34 feet aft of the transom and 2 feet to port? • Then, think about how the offset position of the rotary affects both trim and list. How does shifting weight aft and to port change the limiting load compared with a centered rotary? • Finally, compare the resulting allowable combination of hook, rotary, and setback load from the manual with each answer choice. Which value most closely matches the limit given for this exact geometry and revised lightweight?

✅ Before You Answer

• Verify you are using the revised lightweight data from section 5, not the original lightweight from earlier sections • Confirm the rotary location in the table/graph matches exactly: 34 ft aft of transom and 2 ft to port of centerline • Double-check whether the manual’s value is in kips and whether any interpolation between tabulated values is required before you match it to the choices

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