A vessel goes from water of RD 1.010 to FW. If her FWA is 160mm, State whether she would sink or rise and by how much.

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Solution :

FWA = 160mm = 16cm

We can calculate:

Change in draft = 

(Change in RD )x(FWA)
             0.025

= (1.010 – 1)x 16 /0.025
= 0.01 x 16 /0.025
= 6.4 cm
= 0.064 m

Here change in draft would lead to sinkage.

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