Pilot's Guide

Garmin G1000H
™
Pilot’s Guide for the Bell 407GX
190-01255-01 Rev. A86
ENGINE INDICATION & CREW ALERTING SYSTEM
CYCLIC CENTERING ANNUNCIATION
The yellow CYC CTR (cyclic centering) annunciation, located above and to the right of the PSI (Power
Situation Indicator), alerts the pilot that the cyclic stick is not in the correct position when the helicopter is
on the ground.
DUAL TACHOMETER
The dual tachometer displays rotor speed (NR) and power turbine speed (NP) as percentages. A readout
for NR is provided. The long pointer represents NR along the gauge scale; NP is shown with the short pointer.
Limitations are shown as colored arcs. A white tick mark represents the FADEC normal governing point. When
Quiet Mode is active, a magenta reference bug is shown the tachometer to indicate the Quiet Mode governing
point. The NR and NP pointers will be the same color as the arc(s) they are presently within.
During autorotation with an engine failure, the NP pointer will be displayed in gray and the dual tachometer
gauge scale will display power-off limitations.
ALTERNATE ENGINE DATA SOURCE ANNUNCIATIONS
If the G1000H is using alternate analog data sources to determine Q, MGT, NG, NP, or NR, a yellow ‘ALTN’
annunciation box will appear to the right of the PSI gauge. In addition, a yellow subscript ‘A’ will be shown with
the affected parameter readout(s) (Figure 3-6).
In the event an alternate analog data source is unavailable or invalid, a white ‘ALTN’ annunciation box is
shown to the right of the PSI gauge (Figure 3-6).
Figure 3-6 Alternate Engine Data Source Annunciations
Alternate Data Source In-
Use Annunciation
Alternate Source
Data In-Use for
Torque
Alternate Data Source
Missing or Invalid
If no valid data sources are available, a red ‘X’ is displayed instead of a readout, and any affected pointers will
be removed from the gauges.