Garmin GPS III Pilot - Manual (Page 83)

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 a trip computer readout(s):
1. Press MENU (with the Trip Computer Page displayed). An options list is displayed.
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.
NOTE: The ‘Reset Trip’ option resets trip odometer, trip timer and average speed readouts.
Vertical Nav— allows you to define a vertical navigation profile used to descend
(or climb) to a target altitude at a specified location. See pages 43-45.
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 rocker 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.
‘Trip Computer’ provides
readouts for the trip odometer,
trip timer, average speed and
maximum speed. Options are
provided to reset these figures.
Density altitude and true air-
speed may be calculated by
entering values for indicated
altitude, calibrated airspeed,
barometric pressure and total
air temperature.
75
REFERENCE
Main Menu
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GPS III Pilot B2 4/1/99 2:02 PM Page 75