A study is performed to establish the state of the art on the knowledge of factors influencing the friction between ice and ship hulls. Based on the outcome of the literature review a set of experimental friction testing is conducted in order to close a number of knowledge gaps. A newly designed testing apparatus with computer controlled stroke, speed and acceleration is used to determine the friction coefficient between an ice sample and a reference plate. The plate is coated in order to reproduce the condition of a new built vessel. A parameter variation is used to identify governing effects on friction and frictional resistance component of the hull surface such as speed and normal load. Finally, an extended conclusion and outlook is given by presenting insights on further factors influencing the frictional resistance of ships over their service life, e.g. wear and tear effects. The findings of the study can be applied for development or improvement of design tools for higher service life efficiency and lower environmental impact. Specifically, among others the findings might be applied to seek for improvements of performance predictions.
