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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 to enter the altitude shown 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 shown 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.) The calculated figures for True
Airspeed and Density Altitude are shown in the designated
fields.
E6B Tab
Calculated
figures
Calculated
figure
Calculated or
user-entered
figure
To calculate winds aloft:
1. Follow the steps in the previous procedure to determine true
airspeed.
Or
Use the ROCKER and ENTER keys to manually enter a true
airspeed figure in the True Airspeed field.
2. Use the ROCKER to highlight the Heading field, and press
ENTER.
3. Use the ROCKER to enter the aircraft heading shown on
your directional gyro or compass. Press ENTER when
finished.
The calculated figures for Head Wind, Wind From, and Wind
Speed appear.
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 on the Main Menu.
2. Press MENU to open the options menu.
3. Highlight Restore Default, and press ENTER.
GPSMAP 296 Pilot’s Guide 49
AVIATION MODE PAGES > E6B TAB