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Virtual Flyability Checks (FPSAT)

ICAO Docs 8168, 8071 and 9906 describe the activities required for the ground validation of RNAV (area navigation) flight procedures. These include checking the coverage and accuracy provided by the navaids infrastructure along the whole of a procedure’s trajectory, and identifying any electromagnetic interference that may affect the performance of the navaids infrastructure.

A virtual flight inspection of an RNAV procedure may also be used to verify and optimize:

  • obstacle environment where the procedure is located
  • flyability of the procedure

FPSAT is a pre/post processor that enables procedure specialists to:

  • check how the FMS (flight management system) will fly the coded procedure by comparing the nominal trajectory and the simulated trajectory taking into account:
    • ARINC Path & Termination,
    • type of aircraft using BADA files,
    • kinematic constraints,
    • weather conditions and visualization of geographic data
  • verify global navigation satellite system (GNSS) signal in space performance (GPS, SBAS, GBAS) along a trajectory;
  • assess the signal continuity, coverage and couples availability of DME/DME navigation along a trajectory;
  • visualization of ATS related geographic data, perform diagnostics and check the results for their functionality;
  • review procedures to optimize navigation performance, cost and environmental impact.

Main features

  • automatic loading of complex SSA (SID, STAR approach) data into the procedure design graphic environment
  • load data from different sources e.g. IDS FPDAM and/or IDS EMACS
  • 3D visualization of terrain information
  • 3D visualization of aircraft trajectory and RNP tunnel
  • “Out of the Window” view with animation along a trajectory


In-flight Procedure Electromagnetic Performance Analysis

  • Improves safety through the early identification of potential problems
  • Reduce costs by minimizing the need to use flight validation to optimize procedures