Ships and marine technology — Guidelines for the design and manufacture of the hub cap with fins for a fixed-pitch marine propeller
船舶和海上技术.固定螺距船用螺旋桨带翼片的轮毂盖的设计和制造指南
This document provides general guidelines for design and manufacture of a hub vortex energy-saving device for a fixed-pitch marine propeller. This document can also apply to the design and manufacture of hub vortex energy-saving device for other types of marine propellers.
According to the specific geometrical shape of the propeller and other specifications, it is suggested that hub cap with fins is used in merchant ships.