190-00726-00 Rev. J
Garmin G900X Pilot’s Guide
67
FLIGHT INSTRUMENTS
SY
STEM
O
VER
VIEW
FLIGHT
INSTRUMENTS
EIS
AUDIO P
ANEL
& CNS
FLIGHT
MANA
GEMENT
HAZARD
AV
OID
ANCE
AFCS
ADDITIONAL
FEA
TURES
APPENDICES
INDEX
ALTIMETER
The
Altimeter displays 600 feet of barometric altitude values at a time on a rolling number gauge using a
moving tape. Numeric labels and major tick marks are shown at intervals of 100 feet. Minor tick marks are at
intervals of 20 feet. The indicated altitude is displayed in the black pointer.
The Selected Altitude is displayed above the Altimeter in the box indicated by a selection bug symbol. A bug
corresponding to this altitude is shown on the tape; if the Selected Altitude exceeds the range shown on the
tape, the bug appears at the corresponding edge of the tape. The metric value, when selected, is displayed in a
separate box above the Selected Altitude.
A magenta Altitude Trend Vector extends up or down the left of the altitude tape, the end resting at the
approximate altitude to be reached in 6 seconds at the current vertical speed. The trend vector is not shown if
altitude remains constant or if data needed for calculation is not available due to a system failure.
Setting the Selected Altitude:
Turn the
ALT
Knob to set the Selected Altitude (large knob for 1000-ft increments, small knob for 100-ft
increments. When the altimeter is set to display Metric Units, the large knob adjusts the Selected Altitude in
500-meter increments; turn the small knob for 50-meter increments.
If set, the Minimum Descent Altitude/Decision Height (MDA/DH) value is also available for the Selected Altitude.
Barometric
Setting
Indicated
Altitude
Selected
Altitude
Minimum Descent
Altitude/Decision
Height Bug
Selected
Altitude Bug
Altitude
Trend
Vector
Figure 2-9 Altimeter
Figure 2-10 Altimeter (Metric Units)
Indicated
Altitude
(Meters)
Selected
Altitude
(Meters)
Barometric
Setting
(Hectopascals)