190-01773-00 Rev. A
AOA System Owner’s Manual
7
AOA System
APPROACH AOA
The Approach AOA is intended to align with the landing reference speed or
threshold crossing speed. In some aircraft the Approach AOA may be consistent with
Vref and equal to 1.3 x Vso (stall speed in the landing configuration).
The Approach AOA is indicated by the illumination of all green bar annunciators
and the Approach AOA Reference (green circle) annunciator.
GI 260 (Approach AOA)
All Green
Annunciators
Illuminate
Approach AOA
Reference
Illuminated
HIGH AOA WITH AUDIBLE ALERT
A high AOA approach is indicated by the illumination of the yellow Caution Alert
AOA bar/chevron annunciators. A slow audible “Beep-Beep” alert coincides with
illumination of the upper yellow chevron.
GI 260 (High AOA)
Yellow
Caution Alert
Annunciators
Illuminate
Beep - Beep
(Slow)
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