Garmin G500 Pilot's Manual page 56

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Roll Scale Zero
The standby mechanical Attitude Indicator in your aircraft is either a Ground
Pointer or a Roll Pointer configuration. The GDU 620 Attitude Indicator has
been configured in either a Ground Pointer or a Roll Pointer configuration to
match the configuration of your aircraft' s standby Attitude Indicator. Ground/
Sky Pointer mode is configured during installation and can not be changed by
the pilot.
In an aircraft with an Attitude Indicator that has a Ground Pointer, the pointer
above the Roll Scale shifts with the roll or bank angle of the aircraft to keep the
Roll Scale Zero Pointer pointing towards the ground.
Roll Pointer
Figure 2-15 Attitude Indicator with Ground Pointer Configuration in a Left Turn
In an aircraft with an Attitude Indicator that has a Sky Pointer, the pointer
below the roll scale shifts with the roll or bank angle of the aircraft to keep the
Roll Pointer pointing towards the sky.
Roll Scale Zero Pointer
Figure 2-16 Attitude Indicator with Sky Pointer Configuration in Left Turn
2-10
Roll Pointer
Figure 2-14 Slip/Skid Indication
Garmin G500/G600 Pilot's Guide
Slip/Skid Indicator
Roll Scale Zero Pointer
Roll Scale
Roll Pointer
Roll Scale
190-00601-02 Rev. J