NAVIGATION AND
COMMUNICATION
AIRPLANE
OPERATIONS
MANUAL
2-18-30
Page
16
Code
01
MARCH 30, 2001
AHRS INDICATIONS ON THE PFD
ELECTRONIC ATTITUDE DIRECTOR INDICATOR (EADI)
1 - ATTITUDE SPHERE
− Color:
− Sky: blue.
− Ground: brown.
2 - ROLL SCALE
− Color: White
− Range: 360 degrees.
− Resolution: 10, 20, 30 and 60 degrees for left and right roll
attitudes.
− Fixed pointers (unfilled triangles) are located at zero degrees
and 45 degrees (LH and RH).
3 - ROLL POINTER
− Color: White.
− Provides the roll angular indication against the roll scale.
4 - EXCESSIVE PITCH CHEVRONS
− Color: Red
− Marks –45 and 65 degrees pitch up, and 35, 50 and 65 degrees
pitch down.
5 - PITCH SCALE
− Color: White.
− Range: 0 to 90 degrees (pitch up and pitch down).
− Marks:
− Pitch up: 0, 5, 10, 15, 20, 25, 30, 40, 60 and 90 degrees.
− Pitch down: 5, 10, 15, 20, 25, 30, 45, 60 and 90 degrees.
6 - GROUND/SKY REFERENCE EYEBROW
− Color: Blue or brown.
− The eyebrow provides a quick ground/sky reference for attitudes
where the horizon line is out of the display.
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