Aircraft Flight Control Systems
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Questions and Answers

What is the primary input device for the rudder control in an A320 aircraft?

  • Flight control computer
  • Rudder pedals (correct)
  • Control yoke
  • Sidestick

    • What is the primary function of the hydraulic system in an A320 aircraft?

  • To power the flight control computer
  • To provide electrical power to the aircraft
  • To move the control surfaces hydraulically (correct)
  • To control the aircraft's altitude

    • What is the term used to describe the movement of control surfaces in an A320 aircraft?

  • Hydraulic movement
  • Hydraulic/electrical movement (correct)
  • Electrical movement
  • Mechanical movement

    • What is the primary function of the fly-by-wire system in an A320 aircraft?

    <p>To transmit flight control inputs electronically</p> Signup and view all the answers

    What is the input device used to control the ailerons and elevators in an A320 aircraft?

    <p>Sidestick</p> Signup and view all the answers

    What is the primary advantage of the fly-by-wire system in an A320 aircraft?

    <p>Improved reliability</p> Signup and view all the answers

    What is the role of the flight control computer in an A320 aircraft?

    <p>To process flight control inputs</p> Signup and view all the answers

    What is the primary difference between the fly-by-wire system in an A320 aircraft and traditional mechanical systems?

    <p>The use of electrical signals</p> Signup and view all the answers

    What is the term used to describe the movement of the rudder in an A320 aircraft?

    <p>Pedal-controlled movement</p> Signup and view all the answers

    What is the primary function of the hydraulic system in an A320 aircraft's flight control system?

    <p>To move the control surfaces hydraulically</p> Signup and view all the answers

    Study Notes

    Flight Control Systems

    • Forces and moments are responsible for changing the flight attitude of an aircraft.
    • Moment is calculated as force x lever.
    • Pitch is a rotation around the lateral axis, roll is a rotation around the longitudinal axis, and yaw is a rotation around the vertical axis.
    • Forces are generated aerodynamically by deflection of control surfaces on the wings and the empennage.

    Flight Control Fundamentals

    • Flight control surfaces include ailerons, elevators, and rudder.
    • The lateral axis is y, the vertical axis is z, and the long axis is x.
    • Pitch is defined as theta (θ), roll is defined as phi (φ), and yaw is defined as psi (ψ).
    • Weight is a force acting downwards, lift is a force acting upwards, and drag is a force acting backwards.

    Unaccelerated Level Flight

    • Lift (L) equals weight (W) plus lift generated by the trimmable horizontal stabilizer (LTHS).

    Pitch (Up)

    • Deflection of the elevator causes a downward force, resulting in a pitch up.

    Roll (to the Right)

    • Deflection of the aileron causes a roll to the right.
    • L1 and L2 are the lift forces on the left and right wings, respectively.

    Yaw (to the Right)

    • Deflection of the rudder causes a lateral force, resulting in a yaw to the right.

    Secondary Flight Controls

    • Secondary flight controls include spoilers, airbrakes, horizontal stabilizer, slats, and flaps.

    A320 System Architecture

    • The hydraulic system has three users: green, blue, and yellow.
    • Each user has control over specific flight control surfaces.
    • The system architecture includes a wing and a computer number.

    A320 Fly-by-Wire

    • The fly-by-wire system uses electrical transmission and data processing.
    • It controls the movement of the control surfaces through hydraulic and electrical means.
    • The sidestick is used to control the aircraft.
    • The rudder pedals control the rudder.

    Hydraulic System

    • The hydraulic system has three parts: green, blue, and yellow.
    • Each part has specific functions and controls.

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    Description

    Quiz on flight control systems, including axis and yaw concepts, for aircraft systems and aviation department students.

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