You have 550 tons of below deck tonnage including liquid mud. Your existing deck cargo is 120 tons with a VCG above the deck of 2.6 feet. What is the maximum additional deck cargo tonnage you are permitted to load? See illustration D036DG below.

Correct Answer: Option C — 120 tons

Stability booklet illustration D036DG provides operational limits for offshore supply vessels combining liquid mud tanks and deck cargo. Based on 550 tons below deck and 120 tons of existing deck cargo at 2.6 feet VCG, maximum additional deck cargo is 120 tons.