一、概述交通部广州海难救助打捞局的500吨起重船“南洋号”系非自航固定式起重船,以港口及平水区域作业为主,能在我国沿海Ⅱ类航区调遣拖航。当海况良好,风力不超过蒲氏四级,亦能在沿海进行额定负荷作业,主要用于打捞 I. Overview The 500-ton crane vessel “Nanyang” of the Guangzhou Maritime Salvation and Salvage Bureau of the Ministry of Communications is a non-self-propelled fixed-type crane ship that is mainly operated in the port and the Ping-Shui area and can tow in Class Ⅱ navigation area along the coast of China . When the sea condition is good, the wind power does not exceed Grade 4, and the rated load operation on the coast can also be carried out, mainly for salvage