The COASTAL DRILLER is loaded as shown in...

Question 1 of 2707066636ee728f7522a1c517731

The COASTAL DRILLER is loaded as shown in the Sample Load Form #1 (Rig Move). What is the new trim angle if 500 kips of weight are shifted aft 60 feet?

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Question 1 of 27070

The COASTAL DRILLER is loaded as shown in the Sample Load Form #1 (Rig Move). What is the new trim angle if 500 kips of weight are shifted aft 60 feet?

🔍 Key Concepts

• Trimming moment caused by shifting weight: how weight × distance aft changes trim • Relationship between trimming moment per inch (or per foot) of trim and the change in trim angle • How the LCF (Longitudinal Center of Flotation) and the vessel’s length between perpendiculars affect trim calculations

💭 Think About

• What trimming moment is created when 500 kips are shifted aft 60 feet, and how do you express that in kip‑feet? • How do you convert that trimming moment into a change in trim (in feet) using the MT1 (or MTF) value from Sample Load Form #1? • Once you find the change in trim in feet, how do you convert that linear trim into an angle in degrees, considering the vessel’s effective length?

✅ Before You Answer

• Confirm the MT1/MTF (moment to trim 1 inch/1 foot) value from Sample Load Form #1 and use the correct units (kips‑feet). • Be sure the trimming moment is based on the distance the weight is moved, not its distance from midships. • After finding the trim in feet, verify that the small‑angle approximation you use to convert to degrees is consistent with the vessel’s length used in the exam data.