Research on Hydrodynamic Coefficients in Maneuverability of Ship with Water-jet Propulsion

In this article, tests with planar motion mechanism (PMM) for a high speed ship with water-jet propulsion was carried out to obtain hydrodynamics coefficients, including oblique test, pure sway test and pure yaw test for the hull with water-jet propulsion and bare hull at various ship speeds. It is shown that sinkage and trim are greatly changed because of the effect of high speed, and the course keeping ability of the ship does not meet the requirement. Some advice is made in the initial design period, where the stern trim, dead wood and fin should be taken into account to increase the course keeping ability. © 2023 Editorial office of Ship Building of China. All rights reserved.