RUDDER AND VESSEL WITH SUCH RUDDER Russian patent published in 2014 - IPC B63H25/38 B63H25/06 

FIELD: transport.

SUBSTANCE: invention relates to rudder for vessel manoeuvring. Vessel has assembly of screw propeller and rudder. Rudder for vessel manoeuvring contains the main rudder blade having upstream end and downstream end and two essentially vertically passing rudder blades and two essentially vertically passing additional rudder blades connected with the main rudder blade by at least two transversal plates. Two transversal plates are connected to top and bottom ends of corresponding additional blades and/or the main rudder blade. Upper transversal plate is located above lower transversal plate and passes more obliquely upwards towards downstream end than lower transversal plate.

EFFECT: better rudder properties for manoeuvrability on a shoal.

20 cl, 4 dwg