🔍 Key Concepts

• Use the salmon‑colored longitudinal strength pages for the Northland (not the GM or displacement tables). • Understand the difference between hogging and sagging numerals and which sign (plus or minus) each one uses. • How to sum the individual tank numerals from table BL‑0002 to obtain the total sagging numeral at midships.

💭 Think About

• From the salmon pages, what do you do with each tank’s hogging/sagging numeral once you know its loading condition from BL‑0002? • When you combine all the contributing tank numerals, should you be adding or subtracting any items, and why? • After you obtain the total sagging numeral, how do you compare it to the answer choices and to the allowable limit on the same page?

✅ Before You Answer

• Verify you are using the correct draft/trim line on the salmon pages that matches the condition described in BL‑0002. • Be sure you are reading from the sagging column, not the hogging column, for each compartment used. • Confirm you have included every compartment listed in BL‑0002 that has a non‑zero load and that your final sum is rounded the same way as in the book.