Pilot's Guide
Garmin G1000 Pilot’s Guide for the Beechcraft C90A/GT/GTi
190-00663-03 Rev. A56
FLIGHT INSTRUMENTS
2.1 FLIGHT INSTRUMENTS
AIRSPEED INDICATOR
NOTE: Refer to the Pilot’s Operating Handbook (POH) and FAA Approved Airplane Flight Manual (AFM) for
speed criteria and Vspeed values.
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. When displayed, the Mach number appears in place
of the TAS. The ground speed is displayed to the left of the TAS. 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 five 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 appears red.
Figure 2-4 Red Pointer
Showing Airspeed Above V
MO
Figure 2-3 Airspeed Indicator
Indicated
Airspeed
True
Airspeed
Vspeed
References
V
MCA
Red Line
V
YSE
Blue Line
Ground
Speed
Airspeed
Trend
Vector
Speed
Ranges
Speeds above the maximum operating speed, V
MO
or M
MO
depending on aircraft altitude, appear in the high
speed warning range, represented on the airspeed tape by red/white “barber pole” coloration.
A red low speed awareness range extends up to the low speed awareness velocity, V
LSA
. An aural stall warning
is generated as the aircraft approaches a stall condition.
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
airspeed will be reached in six seconds if the current acceleration is maintained. If the trend vector crosses
V
MO
/M
MO
, the text of the actual airspeed readout changes to yellow while the pointer remains black. 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.