Rudder and Loads

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Operational Liaison Meeting - FBW aircraft RUDDER and LOADS Some Rudder and Yaw Considerations ã The rudder deflection is the sum of: – the order from the pedal input – the order from the “Yaw Damper” function. ã This deflection is limited by the RTLU (Rudder Travel Limit Unit) for structural considerations. ã The Rudder trim merely moves the pedals. Some Rudder and Yaw Considerations Mechanical Link (*) + VC Roll order (p) (Turn Coord) Yaw rate (r) (Yaw Damping) Control Law (ß) ** * Ex
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  RUDDER and LOADS RUDDER and LOADS  Operational Liaison Meeting -FBW aircraft    ãThe rudder deflection is the sum of:  –the order from the pedal input –the order from the “Yaw Damper” function. ãThis deflection is limited by the RTLU (Rudder Travel Limit Unit) for structural considerations.ãThe Rudder trim merely moves the pedals. Some Rudder and Yaw ConsiderationsSome Rudder and Yaw Considerations   Some Rudder and Yaw ConsiderationsSome Rudder and Yaw Considerations MechanicalMechanicalLink (*)Link (*) Roll order (p)( Turn Coord ) Yaw rate (r)( Yaw Damping )Control Law (ß)** YD VCVC TLU + Rudder Rudder DeflectionDeflection * Except on A3456** on all FBW   Role of the “Yaw Damper” on the A300/A310 Role of the “Yaw Damper” on the A300/A310  ãThe FAC achieves following Yaw functions:  –Dutch Roll damping (with high deflection rates) –Turn Coordination (minimizes side slip during turnentry/exit) –with AP ON, in TO and GA modes, assistance for Engine failure compensation.
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