Garmin Legacy Software Versions Guide de l'utilisateur télécharger pdf (Page 39)

190-00498-00 Rev. A Garmin G1000 Pilot’s Guide for Cessna Nav III

2-9

PRIMARY FLIGHT DISPLAY

2.4 FLIGHT INSTRUMENTS

AIRSPEED INDICATOR

The Airspeed Indicator displays airspeed on a rolling

number gauge using a moving tape. The following

information is also displayed:

• Speed indication

• Speed ranges

• Airspeed Trend Vector

• Vspeed references

Speed Indication

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 one time. The actual airspeed is

displayed inside the black pointer. The pointer remains

black until reaching never-exceed speed (V

), at which

point it turns red.

Speed Ranges

A color-coded (white, green, yellow, and red) 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

). A red range

is also present for low speed awareness. Refer to the

Aircraft Flight Manual (AFM) for speed criteria.

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 airspeed will be

reached in six seconds if the current rate of acceleration is

maintained. 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.

Vspeed References

Vspeeds are set using the TMR/REF softkey. Glide, V

, and V

are shown in the References Window. When

active (ON), the Vspeeds are displayed at their respective

locations to the right of the airspeed scale (refer to the

Auxiliary Windows portion of this Flight Instruments

section for setting and displaying Vspeeds).

True Airspeed Box

The True Airspeed Box is located below the Airspeed

Indicator and displays the true airspeed in knots.

Figure 2-9 Airspeed Indicator

Actual Airspeed

Airspeed Trend

Vector

True Airspeed

Box

Speed Ranges

Vspeed

References

Figure 2-10 Red Pointer at V

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