This paper presents calculation methods on the mass of the water surrounding a waterjet-propelled catamaran and the hydrodynamic derivatives when the catamaran is in turning motion.

• 介绍了喷水推进双体船回转时附连水质量和水动力系数的求法,以及喷泵作用在船体上的纵向推力、侧向力和回转力矩的求法。