March 2021 Nav Arc 1
Q.1 A vessel of length 141 mtrs, CoF = 2.6 mtrs, forward of midship, MCTC = 144, TPC = 19, KM = 7.7m, KG = 6.9m, w = 11300 T, at a dft F = 3.80m, A = 5.68m is floating in a dry dock where depth of water is 6.5m above the top of the blocks. Calculate vessels residual GM and drafts F & A. When:- a) W/L is lowered by 1.75m, and b) V/L is unstable.
Answer:
Q.2 A ship of length of 160m, disp W = 10500t, CF = 3m abaft the midship, in MCTC = 160mt, TPC = 18t, KM = 7.0m, Kg = 6.6m at draft of 6.9m forward, 7.3m aft, grounds lightly on a rock 14m abaft the fore end. The tide then falls by 90cm. Calculate her virtual GM and drafts forward and aft then.
Answer:
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