Bulk Matters - UK P&I

Therefore:
Displacement for
5.0357 m draught = 19743 +(20167-19743) x 3.57 = 19894.37
TPC for 5.0357 m draught = 42.32 +(42.37-42.32) x 3.57 = 42.338
LCF for 5.0357 m draught = - 4.354 +(4.354-4.289) x 3.57 = - 4.331 (for’d of mid)
MCTC for 5.0357 +50 cms = 445.5 +(446.6-445.5) x 3.57 = 445.89
MCTC for 5.0357 – 50 cms = 434.9 +(435.9-434.9) x 3.57 = 435.26
Therefore (dm~dz) = 10.63
The first trim correction is = 101.73 x –4.331 x 42.338 = - 102.61tonnes
10
10
10
10
10
181.8
Second trim correction = 1.0173 2 x 50 x 10.63 = +3.03 tonnes
181.8
Then vessels displacement at a density of 1.025 t/m 3 is calculated as follows:
Displacement for 5.0357m = 19894.37 tonnes
First trim correction = -102.61 tonnes
Second trim correction = +3.03 tonnes
Corrected displacement in salt water = 19794.79 tonnes
This is the weight of the ship at the draught if it was in salt water of density 1.025 t/m 3 , which is the density of
the ship’s hydrostatic scale.
However it is floating in water of apparent density 1.0185 t/m 3 .
So true displacement = 19794.79 x 1.0185 = 19669.26 tonnes
1.025
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