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Navigation System

The navigation system is divided into three main groups:

  • Air Data and Inertial Reference System (ADIRS) plus:
    • Standby instruments
    • Integrated Standby Instrument System (ISIS).
  • Radio navigation
  • Additional navigation systems.

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There are several subsystems within each group.

The first group includes:

  • Air Data Inertial Reference Units (ADIRU)
  • Global Positioning System (GPS)
  • Standby instruments (compass) and ISIS

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The radio navigation group includes:

  • Radio navigation aids
  • Radio altimeters
  • Digital Distance and Radio Magnetic Indicator(DDRMI).

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The additional navigation systems include:

  • Ground Proximity Warning System (GPWS)
  • ATC transponders
  • Weather radar

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This completes the introduction to the subjects that will be covered in the following modules.

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Module completed