Source: https://myalifonline.com/2016/11/13/part-3-belajar-draft-survey-kapal-specimen-of-calculation/
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Part 3 – Belajar Draft Survey Kapal : Specimen of Calculation – My Blog
Part 3 – Belajar Draft Survey Kapal : Specimen of Calculation
Meet you again in Part 3 – Belajar Draft Survey Kapal : Specimen of Calculation
As I have promised you, I write down this post to explain specimen of Calculation in Draft Survey. Please also refer to the previous post Part – 1 Belajar Draft Survey : Terms of Conduct and Part 2 – belajar draft survey: procesdures and calculations.
Gambar : Fore And After Distance
The Draft Survey Calculation is described as below :
Raw Draft Calculation
– Quarter Mean (MMM) = (MM + Mcd) /2 = (10.9805 + 10.965) /2 = 21.9455 /2 = 10.97275 M
– Disp at 10.973 M : 54,266.860 +[ {(10.973 – 10.970) / (10.980 – 10.970)}
x (54,321.070 – 54,266.860)]
– TPC at 10.973 M : 54.210 +[ {(10.973 – 10.970) / (10.980 – 10.970)}
x (54.220 – 54.210)]
Gambar : Calculation Table
– MTC 2 at 10.473 M : 686.460 +[ {(10.473 – 10.470) / (10.480 – 10.470)}
x (686.770 – 686.460)]
Density Correction (Denc)
– To estimated quantity cargo onboard, we need to know about Light Ship and Constant. Light Ship and Constant data is provided on the Ship’s Loading Manual.
For the new ship, we could refer to the Constant on the Manual, but for the old ship it Constant may vary, please refer to the Chief Officer Constant Declaration or Draft Survey Previous Port, or we could calculate it in the final survey after the Ship completing to discharge her cargoes (empty Ship).
We have completed the Initial Draft Survey,
Continue to Part 4 – Belajar Draft Survey : Membaca Draft Mark Kapal
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