MOVABLE BODY AND MAINTENANCE METHOD

A movable body includes: a rotating body that generates advancing power; a movable body main body that rotatably supports the rotating body; an electric motor that is supplied with electric power to rotate the rotating body; and at least one electric power generating unit including an internal combustion engine, an electric power generator that generates the electric power by an output of the internal combustion engine, and a support structural body that supports the internal combustion engine and the electric power generator and is attachable to and detachable from the movable body main body while keeping supporting both of the internal combustion engine and the electric power generator.