Performance Simulation

Performance simulation includes the prediction of planning craft in calm seas over the full speed range of the application.  The simulation is capable of predicting the performance of the boat taking into account the engine and drive system including a standard inboard, pod drive, outboard, surface drive or waterjet from single to quad installations.  The program will pick a propeller for the application and estimate top speed, cruise speed and idle speed.  The waterjet simulation uses affinity rules for determining the thrust versus engine RPM.  The outboard simulation uses the Newton-Radar Series and the counter-rotating propellers for pod drives are modeled using an equivalent single propeller.  The fuel map is based on typical high speed engines adjusted for the fuel consumption at rated RPM.

The program can integrate tank test results into the program instead of the standard modified Savitsky's Long Form.  The program calculates appendage drag, whisker spray and windage  under separate routines.  The whisker spray resistance is neglected above 40 knots. 

The program provides the added resistance and response spectrum heave, pitch and acceleration for Sea States 1 through 4 in head seas.