🔍 Key Concepts

• KG (height of center of gravity) and how it is used with displacement to enter the blue pages tables • How to obtain the ship’s displacement from mean draft using the hydrostatic data before going to stability tables • Difference between danger angle for list and range of stability / maximum righting arm

💭 Think About

• What is the first value you must determine from the drafts before you can use the blue pages: is it displacement, trim, GM, or something else? • Once you know the displacement and KG, where in the blue pages do you look to find a danger angle, and how do you interpolate if your exact values are not listed? • Think about whether a higher KG (less stable vessel) will generally give you a larger or smaller danger angle for permanent list.

✅ Before You Answer

• Be sure you have calculated the mean draft correctly from the given forward and aft drafts before entering any table • Verify you are using the table that specifically lists danger angle for list vs. KG and displacement, not a table for maximum righting arm or range of stability • Check whether your KG and displacement fall between tabulated values and whether the question expects you to interpolate or choose the closest tabulated angle.