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Rudder. A rudder is a primary control surface used to steer a ship, boat, submarine, hovercraft, airship, or other vehicle that moves through a fluid medium (usually air or water). On an airplane, the rudder is used primarily to counter adverse yaw and p-factor and is not the primary control used to turn the airplane.
The Thinker. The Thinker (French: Le Penseur), by Auguste Rodin, is a bronze sculpture situated atop a stone pedestal depicting a nude male figure of heroic size sitting on a rock. He is seen leaning over, his right elbow placed on his left thigh, holding the weight of his chin on the back of his right hand. The pose is one of deep thought and ...
In larger vessels, the rudder is often linked to a steering wheel via cables, pushrods, or hydraulics. Model of a sternpost-mounted pintle-and-gudgeon rudder rudder stop A fitting that limits the swing of the rudder. rudderstock The structural part of a rudder that transmits the torque created by the tiller or steering gear to the rudder blade ...
Diagram of the steering gear of an 18th- to 19th-century sailing ship [3]: 151 Helm of TS Golden Bear. A ship's wheel is composed of eight cylindrical wooden spokes (though sometimes as few as six or as many as ten or twelve depending on the wheel's size and how much force is needed to turn it.) shaped like balusters and all joined at a central wooden hub or nave (sometimes covered with a ...
A balanced rudder is a rudder in which the axis of rotation of the rudder is behind its front edge. This means that when the rudder is turned, the pressure of water caused by the ship's movement through the water acts upon the forward part to exert a force which increases the angle of deflection, so counteracting the pressure acting on the after part, which acts to reduce the angle of deflection.
A rutter is a mariner's handbook of written sailing directions. Before the advent of nautical charts, rutters were the primary store of geographic information for maritime navigation. It was known as a periplus ("sailing-around" book) in classical antiquity and a portolano ("port book") to medieval Italian sailors in the Mediterranean Sea.
The controls (stick and rudder) for rotary wing aircraft (helicopter or autogyro) accomplish the same motions about the three axes of rotation, but manipulate the rotating flight controls (main rotor disk and tail rotor disk) in a completely different manner. Flight control surfaces are operated by aircraft flight control systems.
The Schilling profile is designed to improve the effective lift generated by the rudder and hence improve the maneuverability of the craft, especially at slow speeds. The rudder is effective in both forward and reverse. It has been claimed that a Schilling rudder "combines the highest lateral forces with the best course stability.[2]