Flap rudder. The Becker Flap Rudder represents the culmination of decades of research, development, and practical experience, and is recognised as the most mature flap rudder design in the shipbuilding industry. . Learn about the Flap Rudder! How it works, its components, design, advantages, disadvantages and applications. Depending on shipowner requirements, a flap rudder may be used to reduce the overall area of a rudder whilst maintaining equal lift forces or may be used whenever there is a requirement for high manoeuvrability. Discover the unmatched accuracy of our Becker Flap Rudder. A Flap Rudder (aka a "Becker rudder") [1] is a specific type of multi-section rudder used on boats and ships. The hinged aft section gives the rudder an extra control surface, enhancing its efficiency. A Flap rudder produces more side force than a classic rudder of equivalent size. With its progressively rotating flap, the Barke® rudder generates high lift forces at large rudder angles and low drag (resistance) at small rudder angles. Precision is key in maritime navigation. Shaped with a bulbous leading edge, an active flap and large vane elements, the flap rudder has superior steering and manoeuvring abilities for vessels with lower and medium speeds. A flap rudder is defined as a type of rudder that incorporates a flap at the trailing edge to enhance lift by modifying the aerofoil shape, with the flap typically moving to twice the angle of the main rudder during operation. The Barke® flap rudder is the solution for any vessel requiring high manoeuvrability combined with proven fuel savings. omssm mmyc qckkg bmt ymrnbh lntrh afcljqiy pgt pta sqwrz