Your sailing drafts are: FWD 18'-03", AFT 19'-07" and the GM is 4.3 feet. What will be the angle of list if #2 starboard double bottom (capacity 78 tons, VCG 2.7 feet, and 24.5 feet off the centerline) is filled with saltwater? (Use the data in Section 1, the blue pages, of the Stability Data Reference Book)

Question

Accepted Answer

Option A: 3&deg;. Ballasting #2 starboard double bottom introduces a transverse moment equal to 78 tons multiplied by 24.5 feet. Dividing by vessel displacement and a GM of 4.3 feet determines the tangent, which calculates to an authoritative list angle of 3 degrees.