The existing regression models on the bank (wall) effect are compared to one an-other both dynamically (force level) and kinematically (counteracting helm and hull drift attitude during a steady-state passage along a bank). A small chemical tanker of known hull and rudder hydrodynamics is used as an example of computations. A lot of essential qualitative and quantitative discrepancies have been found, which might claim the re-gression models of little use in an adequate bank effect simulation. Further research is required in this field.