You have 180 tons of below deck tonnage including liquid mud. Your existing deck cargo is 300 tons with a VCG above the deck of 3.0 feet. What is the maximum additional cargo tonnage you are permitted to load? See illustration D036DG below.
• Using the D036DG loading diagram (below-deck tons on x‑axis, deck cargo tons on y‑axis) to check stability limits • Following the loading instructions: draw a vertical line up from the below‑deck tonnage, then a horizontal line across from the deck cargo tonnage • Understanding that the maximum deck cargo VCG is 3.0 ft above deck, as stated in the instructions
• On the graph, what happens if you start at 180 tons on the below‑deck axis and move straight up—where is the safe‑loading boundary at that point? • Given your present 300 tons of deck cargo, how far can you increase the deck cargo (move upward on the y‑axis) before your horizontal line would touch the curve between SAFE LOADING and UNSAFE LOADING? • Once you find the maximum allowable deck cargo at 180 tons below deck, what do you get when you subtract the existing 300 tons from that value?
• Be sure you are reading long tons on both axes (match the scale labels). • Confirm that you use the curve that separates SAFE LOADING from UNSAFE LOADING, not the lines marking Zone I and other annotations. • Verify that the VCG limit of 3.0 ft above deck is already satisfied by the given condition, so you only need to use the diagram to find the allowable total deck cargo.
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