Airspeed Indicator - Garmin G300 Pilot's Manual

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The Airspeed Indicator displays airspeed on a rolling number gauge using a
moving tape. The true airspeed (TAS) is displayed in knots below the Airspeed
Indicator. The numeric labels and major tick marks on the moving tape are marked
at intervals of 10 knots. Speed indication starts at 20 knots, with 60 knots of
airspeed viewable at any time. The actual airspeed is displayed inside the black
pointer. The pointer remains black until reaching never-exceed speed (V
which point it turns red.
A color-coded (red, white, green, yellow, and red/white "barber pole") speed
range strip is located on the moving tape. The colors denote flaps operating
range, normal operating range, caution range, and never-exceed speed (V
red range is also present for low speed awareness.
The Airspeed Trend Vector is a vertical, 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 6 seconds if
the current rate of acceleration is maintained. If the trend vector crosses V
text of the actual 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.
Ground Speed
Actual Airspeed
True Airspeed
190-00921-00 Rev. D
Flaps 10° Tick Mark
Flaps 25° Tick Mark
Airspeed Trend Vector
Vspeed References
Airspeed Color Ranges
Airspeed Indicator
Garmin G300 Pilot's Guide
Flight instruments
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