Propulsion and steering arrangement

摘要

A propulsion and steering arrangement for a vessel (40) comprises a screw propeller (2) and a rudder (10) arranged behind the propeller (2). A fairing (6) at a tail end of the propeller (2) and a bulb-shaped body (20) provided on a rudder blade (11) of the rudder (10) form a streamlined body which is continuous except for a narrow gap between the fairing (6) and the bulb-shaped body (20) to allow a swinging movement of the bulb-shaped body (20) relative to the fairing (6) when the rudder blade (11) is turned. A tail end of the rudder blade (11) is provided with a movable flap (12).