Ship thruster and thruster tunnel cover device

摘要

PROBLEM TO BE SOLVED: To provide a thruster of a craft, which reduces resistance during navigation by providing a cover for an opening of a tunnel and which can make the amount of protrusion small when the cover is opened.SOLUTION: A thruster of a craft includes: a thruster tunnel 61 that is provided in a laterally penetrating manner in a hull and within which a propeller is installed; a cover 64 for closing an opening 63 of the thruster tunnel 61; a guide mechanism for guiding the cover 64 so that it can be opened/closed in such a manner as to slide along an outer plate 1a; and driving means 75 for driving the cover 64 so that it can be opened/closed.