The present paper describes the hydrodynamic modelling solutions, applied in the newly developed shiphandling simulator at SMU (Szczecin Maritime University) for the inland navigation – called InSim. The objective is to provide some guidance on the simulator capability and potential while conducting various research and the crew training projects.

The present study compactly demonstrates the drigt-nondimensional yaw correlation limit a wide range of accelerated turing tests and zigzag tests based on manoeuvring simulation. Next, the problem of tracking an arbitary drift andelnondimensional yaw velocity trajectory (important in the identification of hyll hydrodynamic forces) is solved by means of two differential equations with derivatives versus drift angle. Finally, additional valuable sets of differential equations are formulated with travelled distance or heading as independent variable - most of manoeuvring commands relate to those parametrs, as to be easily observed and having both navigational and hydrodynamic singnificance.