Garmin aera 795/796 Pilot’s Guide 190-01194-00 Rev. CAppendix G206OverviewGPS NavigationFlight PlanningHazard AvoidanceAdditional FeaturesAppendicesIndexCalculating true airspeed and density altitude:1) From the Main Menu, touch Tools > E6B Calc, enter the altitude shownon the altimeter into the ‘Indicated Altitude’ datafield.2) Repeat for ‘Calibrated Airspeed’, ‘Baro Pressure’, and ‘Total AirTemperature’ datafields. (For Calibrated Airspeed, use the speed shown onthe airspeed indicator. Use the current altimeter setting for Baro Pressure.Total Air Temperature is the temperature of the outside air including theheating effect caused by speed. For most aircraft, this is the temperaturereading on a standard outside air temperature gauge.) The calculatedfigures for True Airspeed and Density Altitude are shown in the designatedfields.Calculating winds aloft:1) From the Main Menu, touch Tools > E6B Calc, calculate or enter the trueairspeed into the ‘True Airspeed’ datafield.2) Enter the aircraft heading shown on the directional gyro or compassinto the ‘Heading’ datafield. Tail Wind, Wind From, and Wind Speed arecalculated.NOTE:If True North is selected as the heading reference, a heading referencedto True North must be used to calculate winds accurately.Restoring E6B calculator defaults:From the Main Menu, touch Tools > E6B Calc > Menu > RestoreDefault.AIRCRAFT PROFILEThe Aircraft Profile allows the pilot to select cruising speed, maximum speed, fuelflow, and map symbol. The unit can save up to 10 aircraft profiles.The maximum speed is used to define the range for airspeed on the Panel and isautomatically updated if you exceed this figure.Accessing the aircraft profile:From the Main Menu, touch Tools > Profile