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NOTE:
The “GLIDESLOPE” aural
warning can be muted,
using the G/S WARN
switch on the pedestal.
GX_16_066
GLIDESLOPE
(SOFT) GLIDESLOPE
1000
500
300
100
0 1 2 3
GLIDESLOPE DEVIATION (DOTS FLY UP)
4
RADIO ALTITUDE (FT)
SOFT ALERT AREA
HARD ALERT AREA
MODE 5 BELOW GLIDESLOPE ALERT
GEAR DOWN
SOFT
“GLIDESLOPE”
HARD
“GLIDESLOPE”
GLIDESLOPE BEAM
CENTER
“GLIDESLOPE” (Hard) Area
“GLIDESLOPE” (Soft) Area
For Training Purposes Only
Sept 04
16-55
P I LOT T R A I N I N G GU I D E
NAVIGATION
Mode 6 – Callouts
Mode 6 provides the following advisory alerts: transition through approach
minimums, altitude callouts on approach and excessive bank angles.
• Transition through the preset approach minimums, generates an aural
“MINIMUMS, MINIMUMS” warning. The warning function is enabled between
1000 feet and 10 feet radio altitude for DH minimums. The landing gear must be
down for activation of the warning
• An altitude callout function generates annunciation for descent below
predetermined altitudes. The aural “ONE HUNDRED”, “FIFTY” and “THIRTY”
indicates the transition through 100, 50 and 30 feet AGL. The last annunciated or
transition altitude is memorized. This will prevent the repeat annunciation of a
callout should the airplane transition through said altitudes again. The memory is
cleared and reset, once the airplane climbs to an altitude greater than 1000 feet, or
in the event a transition occurs from approach mode to takeoff mode.
• A “smart altitude callout” provides an aural “FIVE HUNDRED” at 500 feet radio
altitude during a nonprecision approach. The callout may be generated during a
precision approach if the airplane flightpath deviates greater than + 2 dots of either
the glideslope or localizer. The callout is also generated during a back course
approach. Note that these callouts can be programmed as required
GX_16_067
“MINIMUMS” “ONE
HUNDRED”
RUNWAY
“FIFTY”
P I LOT T R A I N I N G GU I D E
NAVIGATION
16-56 For Training Purposes Only
Sept 04
• The excessive bank angle alert is a function of the roll angle with respect to
altitude above ground level. The alert envelope varies linearly from a 10° bank at
30 feet AGL and to 40° of bank at 150 feet AGL, to 55° of bank at 2450 feet AGL.
This will generate an aural “BANK ANGLE, BANK ANGLE”. The alert is
annunciated once, and will repeat if the bank angle increases by 20%. The alert
will be annunciated continuously if the bank angle is increased to 55°. The alert
will be annunciated until the bank angle is decreased below said value
Mode 7 – Windshear Warning
Mode 7 provides alerts and warnings in the event that significant windshear is detected
by the EGPWC. Mode 7 is active during takeoff and landing phases of flight only,
between 10 and 1500 feet AGL. There are two types of windshear warnings:
increasing performance (updraft/headwind) and decreasing performance (down draft/
tailwind).
• For an increasing performance shear (updraft/headwind), an amber increasing
performance shear WINDSHEAR message is annunciated on the PFD and flashes
for 5 seconds, then remains steady
• For a decreasing performance shear (downdraft/tailwind), a decreasing
performance shear WINDSHEAR message in red is annunciated on the PFD and
flashes for 5 seconds, then remains steady, and an aural siren and “WINDSHEAR,
WINDSHEAR, WINDSHEAR” warning are activated.
GX_16_068
“BANK ANGLE
BANK ANGLE”
BANK ANGLE-DEGREES
2450’
150’
30’
5’
55 40 10 10 40 55
RADIO ALTITUDE
For Training Purposes Only
Sept 04
16-57
P I LOT T R A I N I N G GU I D E
NAVIGATION
TERRAIN AWARENESS ALERTING
The terrain alerting function computes minimum terrain clearance envelopes for areas
along the flightpath of the airplane. The function uses accurate position information
from the GPS and a terrain database containing worldwide topographical relief
information in grid format.
The terrain display is available by pressing TERR button on the MFD control panel.
Terrain within 2000 feet of the airplane altitude is displayed. Terrain will
automatically pop up, in MAP mode, on MFD at a 10 NM range, if there is a terrain
threat caution at 60 seconds from impact.
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