Noun
The mechanical appliance by means of which a vessel is guided or steered when in motion. It is a broad and flat blade made of wood or iron, with a long shank, and is fastened in an upright position, usually by one edge, to the sternpost of the vessel in such a way that it can be turned from side to side in the water by means of a tiller, wheel, or other attachment.
Fig.: That which resembles a rudder as a guide or governor; that which guides or governs the course.
Source: Webster's dictionaryAccording to the official accident report, after the first officer made his initial rudder pedal input, he made a series of alternating full rudder inputs. Source: Internet
According to the NTSB, this aggressive use of the rudder controls by the co-pilot caused the vertical stabilizer to snap off the plane. Source: Internet
An Eastern-Han pottery ship model with a steering rudder at the stern and anchor at the bow Evidence found in Chinese literature, and archaeological evidence, show that cartography existed in China before the Han. Source: Internet
An instrument answering to a rudder is attached for guiding the machine. Source: Internet
Again, the skin had become separated from the structure of the rudder, which led to most of the upper rudder becoming separated in-flight. Source: Internet
Anderson 2004, p. 134. They hinged the rudder and connected it to the pilot's warping "cradle", so a single movement by the pilot simultaneously controlled wing-warping and rudder deflection. Source: Internet