1A flat piece hinged vertically near the stern of a boat or ship for steering.

1. 1.1 A vertical airfoil pivoted from the horizontal stabilizer of an aircraft, for controlling movement around the vertical axis.
   Example sentencesExamples

   • The rudders have been replaced along with the trim cables, the skin of the airplane has seen detailed attention and fresh paint, and corroded pieces have been removed and replaced.
   • The only contract resulting from the purchase was for the trifling job of producing directional rudders for the planes.
   • The vertical rudder jams, and the stern diving planes cannot be controlled.
   • Spring tabs were added to the elevators and rudders to help control forces during high speed flight.
   • Although a helicopter has a main blade, rotating at 500 rpm above it, and a tail rotor that acts as a rudder, it remains a completely unstable machine.
   • The Hunter air vehicle is a fixed wing, twin tail boom aircraft with a dual rudder.
   • Another area of intense interest to investigators is the plane's vertical tail, or fin, and its rudder, both of which were found more than half a mile from the impact site, in nearby Jamaica Bay.
   • The tail unit comprises all-moving horizontal tail surfaces and a single-fin vertical tail fitted with a rudder.
   • It was similar to the noise you hear when the aircraft is in a slight sideslip, or the rudder is out of trim.
   • Use rudders for heading control and only small jabs of the yoke to correct pitch and bank excursions.
   • Agglomerations of wings and cowling, flaps, rudders and fuselage rise dramatically from narrow steel legs.
   • Once the pilot has established the desired bank angle, the rudder and the aileron are neutralized so that the bank remains constant.
   • An hour later, by manually working the rudders and flaps, Campbell made a near-perfect landing amid cheers from fellow airmen deployed from Pope.
   • An aeroplane requires a set of wings for lift, wing flaps and rear rudder for control and engines for propulsion.
   • Yaw and pitch were to be controlled through a tail-mounted rudder and elevator connected by cables to the flier's seat and a shoulder yoke.
   • Normal turns may be made with the use of ailerons alone and satisfactory turns may be made with rudders alone, although yaw developed may be unpleasant to passengers.
   • As we towed a glider, the nylon rope broke and whiplashed into our plane, damaging the rudder.
   • Instead of a traditional rudder for yaw control, the upper and lower surfaces are each fitted with two sections of moving surfaces.
   • The tail fin and the rudder attached to it were discovered half a mile from where the fuselage and engines came to rest.
   • I was about to tell the pilot to use the rudders to bring the aircraft to centerline when he said he couldn't keep the aircraft straight.
2. 1.2 Application of a rudder in steering a boat, ship, or aircraft.
   bring the aircraft to a stall and apply full rudder

   a small amount of extra rudder

   Example sentencesExamples

   • The aircraft immediately veered to the left and required right rudder inputs to stay on the runway.
   • I must have instinctively closed the throttle, and when I again broke cloud I applied full opposite left rudder.
   • This was the only airspeed that provided a predictable and constant level of yaw that I could counter with full rudder.
   • The Instrument Landing System worked fine, and the only surprise was how much rudder it required to maintain coordinated flight once it was configured.
   • My first concern was to control the yaw, so I threw a bootful of rudder toward the good engine, while I established a right-hand bank.
   • It is a challenging aircraft in a crosswind and requires a lot of rudder and nosewheel steering to maintain centerline on the rollout.
   • I felt my copilot initially increase right rudder, trying to stop the aircraft's left drift.
   • Capt Yost continued the approach, skillfully aligning the aircraft with the runway using right rudder and fanning the speed-brakes once the landing was assured.
   • Both pilots had to input left rudder to maintain directional control.
   • Nelson used full left rudder and differential thrust to make an arrested landing.
   • As the hook engaged the wire, I countered the right yaw with rudder and kept the right wing off the deck for as long as I could.
   • The aircraft continued to yaw left, despite both pilots putting in full right rudder.
   • Now I did have a blown tire, and as the aircraft slowed through 100 knots, the pull to the right required almost a full boot of left rudder to keep the aircraft on the runway.
   • I then applied full right rudder and what lateral-stick movement I could to regain upright level flight.
   • As power on the good engine came up, yaw would have to be countered with rudder into the good engine.
   • I threw in a boot full of right rudder to stop the nose from falling below the horizon.
   • Applying a little left rudder for lineup at the last second, I watched in amazement as my probe hit brass-to-brass in the center of the basket.
   • It is highly spin-resistant, requiring full rudder to initiate and maintain a spin and recovering in one turn after centralising the flying controls.
   • Suddenly, the aircraft swerved to the right, so I countered with rudder, making the aircraft swerve left centerline.