Garmin NavTalk Pilot - Manual (Page 134)

120
Section 6
GPS Receiver
Reference
TracBack converts the track log data in memory into
an inverted route and begins route navigation along
the reversed route. See page 108 for TracBack
information.
Trip Computer— provides readouts for average
speed, maximum speed, odometer, trip odometer and trip
timer. These readouts can be reset from the Trip
Computer Options.
To reset trip computer readouts:
1. Press MENU with the Trip Computer Page
displayed. An options list is displayed next.
2. To reset all trip computer readouts, highlight ‘Reset
All’ and press ENTER.
3. To reset a single readout item, highlight the desired
option and press ENTER.
Vertical Nav— allows you to define a vertical
navigation profile used to descend (or climb) to a target
altitude at a specified location. See page 87.
E6B— provides calculation features for density
altitude, true airspeed and winds aloft. The winds aloft
function will calculate wind direction, speed and the
head/tail wind component.
To calculate density altitude and true
airspeed:
1. Select the ‘Density Altitude’ file tab using the
ARROW keypad.
2. Highlight the ‘Indicated Altitude’ field and press
ENTER. Enter the altitude from your altimeter and
press ENTER.
3. Highlight the ‘Calibrated Airspeed’ field and press
ENTER. Enter the airspeed from your airspeed
indicator and press ENTER.
4. Highlight the ‘Pressure’ field and press ENTER.
Enter the current altimeter setting (barometric
pressure) and press ENTER.
The ‘Reset Trip’ option resets
trip odometer, trip timer and
average speed readouts.
Density altitude may be
calculated by entering
values for indicated
altitude, calibrated
airspeed, barometric
pressure and total air
temperature.