Performance Prediction of a Slender Half-Displacement Passenger Craft for Inland Navigation

The design of a small passenger craft for Venice is presented. The paper deals with hy-drodynamic aspects mainly concerning resistance prediction in shallow water for sub-critical, critical and supercritical regimes. Usually, open Literature provides methods for the subcritical regime only. Here, a procedure for the estimation of added resistance in subcritical, critical and supercritical regimes is presented within the slender body ap-proximation. The developed procedure is suitable to be used in the early design stage to predict a preliminary speed-power curve. A test case based on the designed half-displacement craft is thoroughly exposed.