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SMM - Ship Performance Software
SMM - Ship Performance Software


Performance issues are a consistent presence in the relationship between an Owner and Charterer. Performance (speed/consumption) claims remain a common complaint from Charterers and a common source of deductions from hire. The frequency of such claims over the last five-six years (since the crash in hire rates in early 2009) is more often than attributed to the technological advances in monitoring vessels adopted by Charterers.
SMM-Ship Performance® (SP) takes into account the conditions which should apply for a fair evaluation of ship’s performance. Subsequently, when all conditions exist, the ship will be expected to demonstrate an ability to perform at the promised speed and consumption and will only be excused from doing so if one or more of the warranty conditions is/are absent. Therefore, the SMM-SP user establishes sufficient individual and cumulative periods of warranty conditions, with respective sets of quality measurements to permit a reliable and objective assessment of the ship’s performance.
SMM-Ship Performance is a powerful software for the assessment of ship propulsion performance based on power and fuel consumption, evaluation of voyage performance as per Charter Party terms and provisions, calculation of light running margin and monitoring of underwater hull surface, condition.
SMM-Ship Performance® (SP) is a powerful toolbox for the assessment of ship propulsion performance, without the need to decompose the ship resistance elements, nor introducing uncertainties for normalizing actual operating conditions and measurements. The method utilized in SMM-SP is based on the principle that the propeller does not sense wind, waves, fouling or any other resistance. It does sense a reduction in the rate of inflow.
More precisely, the rate of inflow variation which is incorporated in the ship’s apparent slip; is related to a reference power for a range of operating speeds. The benefit of this method is that it is always applicable since it is not affected from the fluctuating environmental, vessel and hull & propeller conditions, provided that the propeller stays submerged and the ship does not drift.

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