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CFIS-1. Flight Inspection System of the radio navigation aids


CFIS-1 is used for the airborne evaluation of accuracy and performance of ground navigation facilities. The system provides the capability to inspect the following aids:

  • ILS (instrument landing system),
  • MKS (ILS associated approach markers),
  • VOR (VHF omnidirectional range),
  • DME (distance measuring equipment),
  • NDB (non-directional beacon system),
  • VHF (communication) and radar systems.

It is modern, computerized system designed for the acquisition, recording, processing, analysis, display, and reporting of flight inspection data. It acquires various conditional signals from the avionics.


  • Facilities database
  • System Parameters database
  • Automatic calibration
  • Mission database
  • Mission replay capacities
  • Run time analysis


  • Data acquisition 5 samples/second
  • Data filtering
  • Data recording
  • Trajectory follow navigation
  • Flight data management
  • Checklist
  • Real-time data display
  • Real-time analysis
  • Hardcopy report
  • Post run data replay
  • Flying map

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