Garmin G500 Pilot's Manual page 52

Cover TOC
The Airspeed Trend Vector is a vertical, pink/magenta line, extending up or
down on the airspeed scale, shown to the right of the color-coded speed range
strip. The end of the trend vector corresponds to the predicted airspeed in six
seconds if the current acceleration is maintained. If the trend vector crosses into
the overspeed range, the text of the digital airspeed readout changes to yellow.
The trend vector is absent if the speed remains constant or if any data needed to
calculate airspeed is not available due to a system failure.
2-6
Ground Speed
Caution Range (yellow)
Airspeed Trend Indicator (pink/magenta line)
Glide Speed Reference Marker
V Reference Marker
r
V Reference Marker
x
Landing Gear Extension Speed
V Reference Marker
y
Normal Operating Range (Green)
Flaps Operating Range (White)
True Airspeed
Airspeed Units
Figure 2-7 Airspeed Tape
Overspeed Range (Barber Pole)
Overspeed Indication for
Current Airspeed
Caution Operating Range
Figure 2-8 Overspeed Indication
Garmin G500/G600 Pilot's Guide 190-00601-02 Rev. J