Rudder

Vertical blade-like metal that aids the directions of a vessel. It can be controlled from the bridge and other designated location. Some are calibrated while others are not, it is usually found at the stern of a vessel.

It helps during strong wind and rough weather. The rudder can be monitored on the bridge with an instrument called Rudder Angle. Rudders are classified into different types based on designed for specific manoeuvering needs and vessel like operational speed, ships type/size, propeller movement.

Places the Rudder can be Operated/Controlled

• Bridge (Wheelhouse): The primary control station with the helm and autopilot systems.

• Emergency Steering Gear Room: Located near the rudder stock at the stern. Crew can operate the rudder manually or via hydraulic pumps if bridge control fails. Or during steering gear test the bridge can be Isolated to operate the one at the steering gear room.

• Engine Control Room (ECR): Some ships allow rudder control signals to be monitored or overridden here, especially in integrated systems.

• Secondary Bridge/Control Station (Wing Consoles): On large vessels, wing bridges (port and starboard) may have steering controls for docking and maneuvering.

• Local Control at Hydraulic Power Units: Direct operation of hydraulic pumps and valves in the steering gear compartment.

• Emergency Tiller Deck: A mechanical tiller or hand-operated system fitted above the rudder stock, used as the last resort.

TYPES OF RUDDERS

• Balanced rudder

• Unbalanced rudder

• Semi-balanced rudder

• Spade rudder

• Horn rudder

• Flap rudder

• Schilling rudder

• Becker rudder

RUDDER