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Q&A

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Do we need to obtain special techniques for simulation?
No, you don't.
    Most of the techniques, assumptions and approximations used in the simulation are well
    established and commonly used by various maritime research institutes and industries
    worldwide. There is no need to obtain new techniques.

Is there a necessity of considering decrease of ship speed if the ship has
an extra engine power?
Yes, there is.
    The ship decreases the speed in actual seas whether the ship has an extra engine power
    or not. In addition, the ship speed in the representative sea condition differently decreases
    even if the required power in a calm sea condition is the same. (ref. Fig1) Therefore the
    decrease of ship speed in actual seas should be considered.


Fig.1 Comparison of decrease of ship speed

Do we need to use the specific simulation program to estimate decrease
of ship speed?
No, you don't.
    You can use any simulation programs as far as it follows the simulation guidelines to be
    developed by IMO.

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