Aircraft Systems - Flight Controls

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Questions and Answers

Which system primarily controls the elevators during normal operations?

  • SEC 1
  • Manual control
  • PRIM 2
  • PRIM 1 (correct)

What happens to pitch control if both PRIM 1 and PRIM 2 fail?

  • Manual control shifts to PRIM 1
  • Pitch control is completely lost
  • SEC 1 controls the elevators (correct)
  • PRIM 3 takes over the elevators

What is the maximum elevator deflection for nose up?

  • 30° (correct)
  • 2°
  • 14°
  • 15°

How is the trimmable horizontal stabilizer (THS) impacted when all primary systems fail?

<p>Electrical control of the THS is lost (C)</p> Signup and view all the answers

Which hydraulic jacks are used by PRIM 2 to control the elevators?

<p>Blue and yellow hydraulic jacks (B)</p> Signup and view all the answers

What function do ailerons serve in an aircraft's flight control system?

<p>Control roll. (A)</p> Signup and view all the answers

Which component is primarily responsible for reducing lift during flight?

<p>Spoilers. (A)</p> Signup and view all the answers

What do the primary and secondary computers in the flight control system manage?

<p>Component communication priorities. (D)</p> Signup and view all the answers

Which type of control surface is used to control yaw in an aircraft?

<p>Rudders. (D)</p> Signup and view all the answers

What is the role of the hydraulic motors in the flight control system?

<p>Actuate the flight controls. (B)</p> Signup and view all the answers

What do electrical motors power in the flight control system?

<p>Servo systems for flight controls (C)</p> Signup and view all the answers

Flashcards

Aircraft Flight Controls

A system of surfaces and actuators that control an aircraft's direction and attitude.

Ailerons

Flight control surfaces that control aircraft roll.

Spoilers

Aerodynamic surfaces that reduce lift.

Rudders

Flight control surfaces that control aircraft yaw (side-to-side movement).

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Hydraulic Motors (THS)

Power sources for flight control surfaces.

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Electrical Motors

Power the servo systems for flight controls.

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Primary and Secondary Computers

Control and manage flight functions and priorities.

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Backup System Components (BCM, BPS)

Components that act as support for main systems in case a failure.

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Elevator Deflection Limits

Maximum elevator movement is 30 degrees nose up and 15 degrees nose down.

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THS Deflection Limits

Horizontal Stabilizer maximum deflection is 14 degrees nose up and 2 degrees nose down.

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PRIM 1 Function

PRIM 1 controls the elevators and horizontal stabilizer in normal flight conditions, using the green hydraulic jacks for the elevators.

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Backup Pitch Control (PRIM 2)

If PRIM 1 fails, PRIM 2 takes over elevator and stabilizer control, using blue and yellow jacks.

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SEC 1 Activation

In case of PRIM 1 and PRIM 2 failure, SEC 1 controls the elevators.

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Study Notes

Aircraft Systems - Flight Controls

  • Diagram displays a system architecture for flight controls
  • Shows various components and their connections
  • Includes different types of actuators, like electric motors and hydraulic motors
  • Illustrates control surfaces like ailerons, spoilers, and rudders
  • Shows computer systems that control the configuration
  • Displays how the system works to move the control surfaces
  • Indicates how the different sections work together for a complete system

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