Garmin GPSMAP 296 Pilot's Guide - Page 56
E6B Tab, To open the E6B tab of the Main Menu
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AVIATION MODE PAGES > E6B TAB E6B Tab The E6B tab in the Main Menu calculates Density Altitude, True Airspeed, and Winds Aloft (Head Wind, Tail Wind, Wind From, and Wind Speed), based on information you enter. To open the E6B tab of the Main Menu: 1. Press MENU twice to open the Main Menu. 2. Highlight E6B from the vertical list of tabs. Calculated figure Calculated or user-entered figure E6B Tab Calculated figures Indicated Altitude-required entry for density altitude/true airspeed calculation. Enter the aircraft's altimeter reading. Calibrated Airspeed-required entry for density altitude/true airspeed calculation. Enter the aircraft's airspeed indicator. Heading-required entry for winds aloft calculation. Use heading from the aircraft's heading indicator or directional gyro. 48 Baro Pressure-required entry for density altitude/true airspeed calculation. Use current altimeter setting (barometric pressure). Total Air Temperature-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. Head 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 airspeed. True Airspeed-(calculated or user-entered figure) determined from entry of calibrated airspeed, baro pressure, and total air temperature. Also can be entered directly for winds aloft calculations. Density Altitude-(calculated figure) determined from entry of indicated altitude, barometric pressure and total air temperature. GPSMAP 296 Pilot's Guide