User Guide
Garmin G1000 Pilot’s Guide for the Cessna Citation Mustang
190-00494-00 Rev. B
2-4
FLIGHT INSTRUMENTS
2.2 FLIGHT INSTRUMENTS
AIRSPEED INDICATOR
NOTE: Refer to the Airplane Flight Manual (AFM) for speed criteria.
The Airspeed Indicator displays airspeed on a rolling number gauge using a moving tape. The numeric labels
and major tick marks on the moving tape are marked at intervals of 10 knots, while minor tick marks on the
moving tape are indicated at intervals of 5 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 the high airspeed limit, at which point it turns red along with the Mach number readout.
The Mach number is displayed below the Airspeed Indicator (see Figure 2-1) for airspeeds at or above Mach
0.4 or at altitudes exceeding 27,120 feet. The color of the readout corresponds to the color of the actual
airspeed pointer.
Figure 2-3 Airspeed Indicator
Actual
Airspeed
Airspeed
Trend Vector
Reference
Approach
Speed
Vspeed
References
Figure 2-4 Red Pointer
Showing Overspeed
SPEED AWARENESS
Speeds above the maximum operating speed, V
MO
or M
MO
depending on aircraft altitude, appear in the high
speed awareness range, represented on the airspeed tape by red/white “barber pole” coloration. An aural
overspeed warning tone is generated if the airspeed exceeds the high airspeed limit.
A red low speed awareness range extends up to the low speed awareness velocity, V
LSA
. An aural stall
warning is generated if the airspeed falls below V
LSA
. An open green circle on the airspeed tape represents
1.3V
S1
when takeoff vspeeds are turned off.
AIRSPEED TREND VECTOR
The Airspeed Trend Vector is a vertical, magenta line, extending up or down on the airspeed scale, located
to the right of the color-coded speed range strip. The end of the trend vector displays approximately what
the airspeed will be reached in 6 seconds if the current rate of acceleration is maintained. If the trend vector
crosses V
MO
/M
MO
, the text of the actual airspeed readout and the Mach 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.