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The rudder may also be called upon to counter-act the adverse yaw produced by the roll-control surfaces. If rudder is continuously applied in level flight the aircraft will yaw initially in the direction of the applied rudder – the primary effect of rudder. After a few seconds the aircraft will tend to bank in the direction of yaw.
The flight deck control has three positions: off, automatic ("armed"), and manual (rarely used). On landing approach "automatic" is selected and, on touchdown, a sensor called a weight-on-wheels switch signals the lift dumpers to be raised. The flight control spoilers are also raised as additional lift dumpers.
Although the aircraft experiences high angles of attack throughout the maneuver, the aircraft is not capable of either aerodynamic directional control or maintaining level flight until the maneuver ends. The Cobra is an example of supermaneuvering [9] [10] as the aircraft's wings are well beyond the critical angle of attack for most of the ...
A review of the flight’s data recorder corroborated the pilot’s account of what happened, and showed that the rudder surface position remained near its neutral position during the landing and ...
Northwest Airlines Flight 85 was a scheduled international passenger flight from Detroit Metropolitan Wayne County Airport in the United States to Narita International Airport in Japan. On October 9, 2002, while over the Bering Sea , the Boeing 747-400 experienced a lower rudder hardover event, which occurs when an aircraft's rudder deflects to ...
The NTSB says none of the 161 people on United flight 1539 were injured and the plane returned to the gate, though United maintenance crews were able to “duplicate the reported rudder system ...
Rolling slowly left will require moving the rudder slowly to the right, then back to center as the wings become level in inverted flight (where of course some elevator is needed), and then to the left as the roll continues and puts the right wing down, and finally back to center and the aircraft returns to straight and level flight.
This spin is countered with the rudder, which begins a spin in the opposite direction that must be countered with rudder, and the process is repeated as many times as the pilot determines. During the maneuver, the plane resembles a leaf falling from the sky; first slipping to one side, stopping, and then slipping to the other direction ...