Garmin GPSMAP 296 Pilot's Manual page 56

A M P F
VIATION ODE AGES AND EATURES
To calculate true airspeed and density altitude:
1. From the E6B tab, highlight the Indicated Altitude field (at
the top of the page) and press ENTER .
2. Use the Rocker key to enter the altitude displayed on your
altimeter. Press ENTER when finished.
3. Repeat steps 1 and 2 to enter the Calibrated Airspeed,
Baro Pressure, and Total Air Temperature. (For
Calibrated Airspeed, use the speed displayed on your
airspeed indicator. Use the current altimeter setting for Baro
Pressure. Total Air Temperature is the temperature of the
outside air including the heating effect caused by speed. For
most aircraft, this is the temperature reading on a standard
outside air temperature gauge.)
4. The calculated figures for True Airspeed and Density
Altitude are displayed in the designated fields.
Calculated
Figure
Calculated
or User-
Entered
Figure
48
> E6B T
AB
Calculated
E6B Tab
To calculate winds aloft:
1. Follow the steps in the previous procedure to determine true
airspeed. Or, use the Rocker key and ENTER to manually
enter a true airspeed figure in the True Airspeed field.
2. Use the Rocker key to highlight the Heading field and press
ENTER .
3. Use the Rocker key to enter the aircraft heading displayed
on your directional gyro or compass. Press ENTER when
finished.
The calculated figures for Head Wind, Wind From, and Wind
Speed are displayed.
NOTE: If a True North reference is currently selected as the
heading reference on your GPSMAP 296, you must enter
Heading using a True North reference to determine winds
accurately.
To restore defaults on the E6B tab:
1. Open the E6B tab of the Main Menu.
2. Press MENU to open the options menu.
3. Highlight Restore Default and press ENTER.
Figures
GPSMAP 296 Pilot's Guide