Delivered Power - Trim And Sinkage - ShipHull Forms: An Analysis Of The Effects Of TheTrim Variations On The Power PerformanceOf A Class Of Modern Container Ships

The spatial geometry screening methodology has been applied to the analysis of sixty series of self -propulsion experimental data(more than 330 power - speed values) obtained from different container ship models tested at INSEAN at several load and trim conditions. The speed criteria ( FNV ) ranging from .350 to .690 (speeds from 13 to 23 knots and displacements from 16000 to 60000 t).The developed procedure enables the designer :1) to derive independent variables from the body plan 2)to determine the calm water delivered power value with a quite small confidence interval (less than 2.5 %),for each load,trim and speed considered experimental condition.