TERRAIN AWARENESS WARNING SYSTEM (TAWS) (Cont)
MODE 5 — Descent Below Glideslope
Mode 5 provides alerts and warnings when the airplane descends below the glideslope on an ILS approach. The alerts and
warnings are annunciated in two distinct tones, depending on the position of the airplane on the glideslope.
When the airplane descends more than 1.3 dots (but no more than 2 dots) below the glideslope, a quiet (6 dB) aural
“GLIDESLOPE” is generated. If the airplane continues to descend and deviates more than 2 dots below the glideslope, an
aural “GLIDESLOPE” warning is generated at the same volume level as all other warnings. An amber
GND PROX
is dis-
played on the PFD. The aural and visual alerts and warnings are continuously annunciated until the airplane exits the alert
envelope.
NOTE:
The “GLIDESLOPE” aural warning can be muted by selecting the GS switch OFF, which is located on the
TAWS WARN panel.
CF
O
1
701002_019
100
0
MIN TERRAIN CLEARANCE
(
F
EE
T
)
0
1
2
3
4
200
300
400
500
600
700
800
900
1000
GLIDESLOPE DEVIATION (DOTS FLY UP)
MODE 5 BELOW GLIDESLOPE ALERT
GEAR DOWN
RUNWAY
GLIDESLOPE
BEAM
CENTER
SOFT
"GLIDESLOPE"
HARD
"GLIDESLOPE"
HARD ALERT AREA
SOFT ALERT AREA
SOFT
ALERT
AREA
HARD
AREA
ALERT
Challenger Global 300 - Navigation
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