- The master should ensure that the ship condition complies with its stability booklet at all times.
- Since excessive GM values induce large accelerations, GM should preferably not exceed 3% of the breadth of the vessel.
- Ballast water exchange operations should be carried out in accordance with instructions in the Ballast Water Management Plan.
When undertaking stability calculations, variation in displacement, centre of gravity and free surface moments due to the following factors should be considered:
- absorption of water in timber carried as timber deck cargo according to special instruction.
- ice accretion, if applicable;
- variations in consumables; and
- ballast water exchange operations, in accordance with approved procedures.
A lashing plan according to the ship’s Cargo Securing Manual (CSM) should be prepared and the following calculated:
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