The hydrostatic particulars of a ship consist of displacement,
deadweight, tonnes per centimetre (TPC), height of COB above keel (KB), distance of COB from
after perpendicular (AB) or from midships (HB), height of transverse metacentre above keel (KMT), height of the
longitudinal metacentre above keel (KML), distance of centre of flotation from after
perpendicular (AF) or from midships. (HF) and moment to change trim by one centimetre (MCTC).
Since each of these values depends on the draft of the ship, the hydrostatic pa:-ticulars are given by the shipyard' in the form of curves of tables plotted or tabulated against draft.
The foregoing terms have all been explained in earlier chapters with the exception of the last three - KML, AF (or HF) and MCTC. These will be explained in detail in volume II.
All the hydrostatic curves of a ship may be given, by the shipyard, on a single sheet of graph paper wherein draft may be indicated on the Y-axis and centimetres on the X-axis. For each curve, one centimetre on the X-axis represents a different value, as illustrated on the next page. Some shipyards include, on the same graph, curves of additional information which are dependant on draft, such as wetted surface area, midship area, block coefficient, water-plane area coefficient, etc.
Cross curves of Stability
Cross curves of Stability 2
Since each of these values depends on the draft of the ship, the hydrostatic pa:-ticulars are given by the shipyard' in the form of curves of tables plotted or tabulated against draft.
The foregoing terms have all been explained in earlier chapters with the exception of the last three - KML, AF (or HF) and MCTC. These will be explained in detail in volume II.
All the hydrostatic curves of a ship may be given, by the shipyard, on a single sheet of graph paper wherein draft may be indicated on the Y-axis and centimetres on the X-axis. For each curve, one centimetre on the X-axis represents a different value, as illustrated on the next page. Some shipyards include, on the same graph, curves of additional information which are dependant on draft, such as wetted surface area, midship area, block coefficient, water-plane area coefficient, etc.
Cross curves of Stability
Cross curves of Stability 2
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