Effects of the Wind Force to the Speed of a Car Carrier

Abstract

Effects of the wind force to the maneuverability of the ship with a large lateral area above the water line have been reported in many papers, however, few have refered to the speed loss during the navigation with helm adjusts and drifts due to the oblique wind. This paper shows the results of an estimation of the speed loss for a large car carrier by incorporating equilibrium equations and the results of various model tests, such as the wind tunnel test, resistance test with drifts and self-propulsion test with helm adjusts. From this study, it can be considered that the speed loss due to drifts and helm adjusts can't be ignored compared with that due to the wind resistance.