BendixKing SG 465 System EFS 50 - Manual (Page 95)

EADI Displays
4.2.1 Issued 4/95 SW 06/07/08/11
PITCH ATTITUDE
A moving white simulated hori-
zon line rotates angularly with the
roll of the aircraft and moves up
and down with the pitch of the
aircraft. Blue sky above the hori-
zon and brown ground below the
horizon align with the horizon line
as it follows the aircraft’s pitch
and roll. Pitch scale reference
marks extend above and below
the horizon line indicating 5,10,
15, 20, 25, 30, 35, 40, 45, 50, 55,
60, 65, 70, 75, 80 and 90
degrees. Refer to Figure 4.2.3.
In the event of a pitch or roll atti-
tude failure, the pitch scale, roll
scale, roll index pointer, blue sky
and brown ground are removed
from the display. Centered just
below the roll scale, a RED
“ATTITUDE FAIL” enclosed in a
RED box will be annunciated.
ROLL ATTITUDE
The roll attitude display for the
Lear 31A is a movable index (sky
pointer).
The roll scale provides reference
marks at 10, 20, 30, 45 and 60
degrees. To allow easier recogni-
tion of the 30, 60 and 45 degree
marks, the 30 and 60 degree
marks are longer extending fur-
ther into the center of the display
and the 45 degree mark is dis-
played in the form of a hollow tri-
angle. Refer to Figure 4.2.4.
❏ An optional configuration item,
selected at the time of installation
and certification, allows the EFS
50 to declutter nonessential navi-
gation data in the event an
unusual attitude is encountered.
Removal of the data will occur if
pitch angle exceeds +30 or -20
degrees, or if bank angle
exceeds 65 degrees. Red
chevrons, used to indicate the
best unusual attitude recovery
direction (not necessarily right
side up), will appear in the brown
ground raster between 40 and 85
degrees, and in the blue sky
raster between 50 and 85
degrees.
In the event of a pitch or roll atti-
tude failure, the pitch scale, blue
sky, brown ground and sky point-
er are removed from the display.
Centered just below the roll scale
a RED “ATTITUDE FAIL”
enclosed in a RED box will be
annunciated.
ROLL INDICATOR
The sky pointer roll indicator is a
white triangular pointer posi-
tioned just below the roll scale.
The pointer rotates with the pitch
scale while the roll scale remains
fixed.
EADI DISPLAYS
NORMAL ATTITUDE DISPLAY