PROPULSION APPARATUS

摘要

Disclosed is a propulsion device. According to the embodiment of the present invention, the propulsion device includes: a propeller providing a propulsion force to a hull; a duct enclosing the propeller; and a fin located in rear of the propeller and supported by the duct, wherein the fin damps a rotary current of a rear current of the propeller. The propulsion device can efficiently damp the rotary current among the rear currents of the propeller.