Code example: Calculating True Air Speed (TAS)

Objects Used

The following FPAssistant programming objects are using in this example:

• IndicatedAirSpeed (struct) - Object to perform the calculation of True Air Speed
• Altitude (struct) - Object to handle Altitude
• Airspeed (struct) - Object to handle Airspeed

C# Example

In this example, a TAS will be calculated for an airspeed of 200kph at an altitude of 4500m with a ISA of 15.

   Airspeed airspeed = new Airspeed(200, AirSpeedUnits.Kph);
   Altitude altitude = new Altitude(4500, AltitudeUnits.Metres);
   double isa = 15; // VAR - Temperature variation about ISA in Deg. C

   IndicatedAirSpeed ias = new IndicatedAirSpeed(airspeed, altitude, Isa);

Once this IndicatedAirSpeed object has been created, then the member properties are available to access the values plus the calculated values of TAS and K

      ias.TrueAirSpeed
      ias.K Conversion factor