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Garmin GPSMAP 695/696 Owner’s Manual
190-00919-00 Rev. D
Appendix F
166
OverviewGPS NavigationFlight PlanningHazard AvoidanceAdditional FeaturesAppendicesIndex
I•
ndicated Altitude—
requiredentryfordensityaltitude/trueairspeedcalculation.
Enter the aircraft’s altimeter reading.
Baro Pressure• —
when the unit is receiving XM weather information, the field auto-
matically updates to the barometric pressure of the nearest METAR. If XM weather
information is not available you need to enter the current barometric pressure.
Calibrated Airspeed• —
requiredentryfordensityaltitude/trueairspeedcalculation.
Enter the aircraft’s airspeed indicator value.
Total Air Temp• —
requiredentryfordensityaltitude/trueairspeedcalculation.Total
Air Temperature (TAT) is the temperature of the air including the heating effect caused
by speed. The temperature reading on a standard outside air temperature gauge found
on most piston aircraft is TAT.
Heading• —
requiredentryforwindsaloftcalculation.Useheadingfromtheaircraft’s
heading indicator or directional gyro.
Tail Wind• —
(calculated figure) determined from entry of heading and true airspeed.
Wind From• —
(calculated figure) determined from entry of heading and true airspeed.
Wind Speed• —
(calculated figure) determined from entry of heading and true air-
speed.
Density Altitude• —
(calculated figure) determined from entry of indicated altitude,
barometric pressure and total air temperature.
True Airspeed• —
(calculated or user-entered figure) determined from entry of
calibrated airspeed, barometric pressure, and total air temperature. This can also be
entered directly for winds aloft calculations.
Calculating true airspeed and density altitude:
1)
From the E6B Calculator Page, enter the altitude shown on the altimeter
into the ‘Indicated Altitude’ field, and press the ENT Key.