The SS AMERICAN MARINER is ready to load the cargo listed in table ST-0043 below. There is already 3284 tons of cargo on board with a KG of 26.4 feet. Use the white pages of the Stability Data Reference Book to determine the final KG of all the cargo after loading is completed.
⢠Use the weightedâaverage KG formula: final KG depends on both existing displacement and added cargo moments. ⢠You must obtain each compartmentâs vertical center of gravity (VCG or KG) from the SS AMERICAN MARINER white pages, then multiply by the weight in that space. ⢠Remember that the new total KG is the sum of all moments (old ship + new cargo) divided by the new total displacement.
⢠How do you combine the shipâs existing KG (26.4 ft at 3284 tons) with the new cargo so that heavier items higher or lower affect the final KG correctly? ⢠Once you have the KG for each loading position from the white pages, what operation must you perform with the weight and KG to get a moment, and how do you combine all those moments? ⢠After adding all the cargo, will the overall KG likely move up or down, based on whether most cargo is on the tank top or higher decks?
⢠Verify you have every cargo weight from the table and that their KGs match the correct deck/hold positions in the stability book. ⢠Compute the existing shipâs moment correctly: displacement Ă existing KG, before adding cargo moments. ⢠Before choosing an answer, recompute: Final KG = Total moments á Total displacement, and check that your result is close to one of the options.
No comments yet
Be the first to share your thoughts!