Driftdown Analysis

For any route worldwide

Our driftdown calculations are based on terrain data from SRTM (NASA Shuttle Radar Terrain Missions), ARINC aeronautical data and individual AFM performance data.

Our inhouse developed software generates an accurate driftdown calculation within seconds, providing any operator with; multiple PDPs for different wind conditions, aircraft service ceiling and a terrain cross-section of the requested route -all presented in a graphical PDF-format document and of course all according to EASA requirements.

  • SRTM: We use the most complete digital topographic data available for highest resolution possible.
  • Global Cover: Flygprestanda offers driftdowns calculations for any route worldwide.
  • Multiple PDP’s: Our driftdowns feature multiple predetermined decision points for various wind conditions and flight levels, color coded for ease of use.