SETTING UP SEOPS

There are two groups of settings that must be completed carefully to ensure accurate SEOPS calculations are performed by the software.

Note: Please consult your support team if you are unsure about the value of any of these settings for your aircraft.

The glide cone calculation parameters determine the aircraft's maximum safe gliding distance, which allows the safe distances from each landing site to be displayed on the map. The risk matrix calculation parameters are used to assess the risk of a fatal accident occurring during different segments of the flight, and then to calculate a cumulative risk for the entire flight. This calculation is summarised in the flight log and must be below a specific value approved by the relevant authority before the flight can be approved.

Setting	Details
Glide Cone Calculations (still air)
Glide Speed	Enter the gliding speed of your aircraft in knots.
Glide Ratio	Enter the glide ratio for your aircraft (the number of feet of horizontal travel achieved for a loss of altitude of 1 foot during gliding flight).
Altitude of Glide Cone Base Above Landing Site	You can define an altitude (in feet) above the landing site at which to end the glide cone calculations, which allows a safety margin for making final manoeuvres just prior to landing.
Risk Period	Set the maximum time in minutes for which your aircraft may be outside gliding range of a selected landing site. This value depends on the assessed risk of a fatal accident resulting from an engine failure during a flight, and must not exceed a value approved by the relevant authorities.
Risk Matrix Calculation
Assumed Engine Failure Rate Per Flight Hour	Enter the value for your aircraft (for example, a value of 1.2E-5 should be entered as 0.000012).
Take-Off Ground Roll	Enter the required time in seconds to bring the aircraft to a halt if the engine fails before take-off.
Landing Ground Run	Enter the required time in seconds to halt the aircraft after touchdown when gliding.