| 摘要 |
Disclosed is a propulsion apparatus for a vessel, which generates a propulsion power by receiving a power through a main shaft. The propulsion apparatus for a vessel comprises a hub arranged on a main shaft; a main blade installed on the outer circumferential surface of the hub; a sub-blade located on the main blade to the back side of the main shaft, and installed on the outer circumferential surface of the hub to be tilted to the back side of main shaft; and a duct arranged around the main blade and having a wing-shaped cross section. |
