Unusual Attitudes - Garmin GI 275 Pilot's Manual

UNUSUAL ATTITUDES

When the aircraft enters an unusual pitch attitude, red extreme pitch warning chevrons
pointing toward the horizon are displayed on the Attitude Indicator, starting at 40° above
and 20° below the horizon line. During extreme pitch attitudes, the display shows either a
brown or blue colored bar at the top or bottom of the screen to represent earth or sky. The
blue colored bar is also displayed when terrain gradient is great enough to completely fill the
display. This is intended to prevent losing sight of the horizon during extreme pitch attitudes.
If pitch exceeds +30°/-20° or bank exceeds 65° (45° on sky pointer), some displayed
information is removed. The Altimeter and Airspeed, Attitude, and Vertical Speed indicators
remain on the display. The following information is removed from the ADI (and corresponding
controls are disabled) when the aircraft experiences unusual attitudes:
• Vertical Deviation Indicator
• Selected Altitude
• Standard rate turn indicators
• Altimeter barometric setting
190-02246-01 Rev. A
• Heading data
• GPS navigation status
• Menus
Unusual attitudes (SVT disabled)
Unusual attitudes (SVT enabled)
Garmin GI 275 Pilot's Guide
Flight Instruments
53