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发表于 2011-2-8 16:02
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来自： 英国
The following class notations are associated with dynamic positioning arrangements, and may be assigned as considered appropriate by the Classification Committee:
DP(CM) This notation may be assigned when a ship is fitted with centralised remote manual controls for position keeping and with position reference system(s) and environmental sensor(s). It denotes that the machinery and control engineering equipment has been arranged, installed and tested in accordance with LR’s Rules, or is equivalent thereto.
DP(AM) This notation may be assigned when a ship is fitted with automatic main and manual standby controls for position keeping and with postition reference system(s) and environmental sensor(s). It denotes that the machinery and control engineering has been arranged, installed and tested in accordance with LR’s Rules, or is equivalent thereto.
DP(AA) This notation may be assigned when a ship is fitted with automatic main and automatic standby controls for position keeping and with position reference system(s) and environmental sensor(s). It denotes that the machinery and control engineering equipment has been arranged, installed and tested in accordance with LR’s Rules, or is equivalent thereto.
DP(AAA) This notation may be assigned when a ship is fitted with automatic main and automatic standby controls for position keeping, together with an additional/emergency automatic control unit located in a separate compartment and with position reference systems and environmental sensors. It denotes that the machinery and control engineering equipment has been arranged, installed and tested in accordance with LR’s Rules, or is equivalent thereto.
The foregoing dynamic positioning notations may be supplemented with a Performance Capability Rating (PCR). This rating indicates the calculated percentage of time that a ship is capable of holding heading and position under a standard set of environmental conditions (North Sea) |
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