A330 -200 rudder
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Questions and Answers

What is the primary function of the Backup Yaw Damper Unit (BYDU)?

  • To activate during a total loss of electrical power for yaw damping only (correct)
  • To replace the green hydraulic servo-actuator in case of failure
  • To synchronize with the yellow servo-actuator for enhanced control
  • To provide feedback to the rudder pedals during normal operations

    • Which components provide independent electric supply to the BYDU?

  • Two identical generators driven by the same hydraulic system
  • One generator driven by the blue hydraulic system and another by the yellow hydraulic system (correct)
  • A single generator powered by the green hydraulic system
  • Multiple battery systems that are charged by the main generators

    • What happens in the case of a total loss of flight control computers?

  • The Backup Yaw Damper Unit (BYDU) activates for yaw damping (correct)
  • The hydraulic servojacks remain operational without feedback
  • The yellow servo-actuator takes full control
  • The yaw damping function is completely disabled

    • What does the yaw damping and turn coordination function lack?

    <p>Feedback to the rudder pedals (A)</p> Signup and view all the answers

    What mechanism is used to achieve rudder trim?

    <p>2 Electric motors (A)</p> Signup and view all the answers

    Which components operate normally in the rudder trim system?

    <p>SEC 1/MOTOR 1 and SEC 2/MOTOR 2 (C)</p> Signup and view all the answers

    What happens to MOTOR 2 during a routine operation?

    <p>It synchronizes with MOTOR 1 as a backup (C)</p> Signup and view all the answers

    During autopilot operation, what does the FMGEC compute for rudder?

    <p>rudder trim orders. (A)</p> Signup and view all the answers

    In what operational state does the FMGEC compute rudder trim orders?

    <p>When the autopilot is engaged. (B)</p> Signup and view all the answers

    What does the engagement of autopilot allow the FMGEC to calculate?

    <p>Rudder trim orders. (B)</p> Signup and view all the answers

    Flashcards

    Yaw Damping Function

    A system that stabilizes the aircraft's yaw (rotation around its vertical axis) during flight.

    Backup Yaw Damper Unit (BYDU)

    A backup system for yaw damping in case of primary system failure or loss of power.

    Hydraulic Servo-actuators

    Devices that use hydraulic pressure to power the yaw damping and turn coordination functions.

    Turn Coordination

    A system that assists pilots in maintaining coordinated turns during flight, preventing unwanted yaw.

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    Independent Electric Power for BYDU

    BYDU relies on separate electrical generators, ensuring continuous power supply in case of hydraulic system failures.

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    Rudder Trim

    A system that adjusts the rudder position to maintain a desired flight attitude without constant pilot input.

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    Artificial Feel Unit

    A device that simulates the feel of the rudder pedals, providing feedback to the pilot.

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    SEC 1/MOTOR 1

    The primary motor that controls the artificial feel unit for rudder trim.

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    SEC 2/MOTOR 2

    The backup motor that controls the artificial feel unit for rudder trim.

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    Synchronized Backup

    SEC 2/MOTOR 2 works in sync with SEC 1/MOTOR 1, ensuring continuous rudder trim operation.

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    Rudder Trim Orders

    Instructions calculated by the FMGEC (Flight Management and Guidance Electronic Computer) to adjust the rudder position for maintaining a desired flight attitude.

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    FMGEC

    A computer system that controls the autopilot and helps guide the aircraft during flight.

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    Autopilot Engaged

    The autopilot system is activated and taking control of the aircraft's flight parameters, including rudder trim.

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    Flight Attitude

    The aircraft's position and orientation in the air, including pitch, roll, and yaw.

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    Study Notes

    Yaw Damping and Turn Coordination

    • Three hydraulic servojacks are controlled by a green hydraulic servo-actuator.
    • A yellow servo-actuator acts as a backup, maintaining synchronization and taking over if the green one fails.
    • Rudder pedals have no feedback from yaw damping and turn coordination systems.
    • Backup Yaw Damper Unit (BYDU) is activated if there's a complete loss of electrical power or flight control computers, handling only yaw damping.
    • BYDU uses an electro-mechanical actuator, working alongside the two standard yaw dampers.
    • The BYDU includes a gyrometer and associated electronics.
    • Two dedicated generators power the BYDU: one powered by the blue hydraulic system, the other by the yellow system.

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    Description

    This quiz focuses on the intricate details of yaw damping and turn coordination systems, especially in aviation contexts. It covers the functionality of hydraulic servojacks, backup systems, and the role of the Backup Yaw Damper Unit (BYDU). Test your understanding of these critical components in flight control systems.

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