The performance of a flap rudder is determined both by the flap, the link mechanism and the profile, as well as the hull and the propeller. Rolls-Royce has therefore designed a range of flap rudders suitable for different types of vessels and functions, to ensure customers can select the rudder best suited to their vessels’ operating requirements, including speed.
FB profile – FM Profile
This rudder has a bulbous profile for maximum manoeuvring performance. The design also has large upper and lower vane plates. It is ideal for use on workboats, fishing vessels, offshore vessels, small tankers, cargo vessels, ferries and other coastal vessels.
Designed with a moderate profile for improved manoeuvrability, it is suited to vessels up to 20,000dwt.
Has a slim profile that is purpose-designed to suit the vessel. The rudder is built around a cast cone module and has a robust link mechanism and hinge system to withstand the high forces. Used typically for Ro-Ro, Ro-Pax, passenger and cruise vessels and tankers, it is also an ideal all-round flap rudder suitable for a wide range of vessel types up to approximately 50,000dwt.
Rudder lift curve