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2400
2600
2800
3000
0 100 800 2800
MIN TERRAIN CLEARANCE (FEET)
RADIO ALTITUDE (FEET)
1200 1600 2000 2400
WARNING AREA (>250 KTS)
WARNING AREA
(<190 KTS)
"TOO LOW
TERRAIN"
"TOO LOW TERRAIN"
MODE 4C UNSAFE TERRAIN
CLEARANCE
UNSAFE TERRAIN CLEARANCE
GEAR UP, FLAPS UP
1500 FPM CLIMB RATE
TAKE-OFF OVER FLAT
TERRAIN OR WATER
NAVIGATION
Sep 13/2004 Flight Crew Operating Manual Volume 2
REV 1 CSP 100-6 17-01-23
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 displayed
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.
CFO1701002_019
100
0
MIN TERRAIN CLEARANCE (FEET)
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
NAVIGATION
Volume 2 Flight Crew Operating Manual Sep 13/2004
17-01-24 CSP 100-6 REV 1
TERRAIN AWARENESS WARNING SYSTEM (TAWS) (Cont)
MODE 6 — Altitude 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, (APPROACHING DECISION HEIGHT or APPROACHING
MINIMUMS), generates an aural “MINIMUMS, MINIMUMS” warning. The warning function is enabled
between 1000 feet and 10 feet radio altitude or DH minimums and when the corrected altitude exceeds the MDA
value by 200 feet. 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 if 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 non-precision approach. The
callout is generated during a precision approach if the airplane flight path deviates greater than ±2 dots of either the
glideslope or localizer. The callout is also generated during a backcourse approach. CFO1701002_020
"MINIMUMSMINIMUMS"
"FIVE HUNDRED"
RUNWAY
NAVIGATION
Sep 13/2004 Flight Crew Operating Manual Volume 2
REV 1 CSP 100-6 17-01-25
TERRAIN AWARENESS WARNING SYSTEM (TAWS) (Cont)
MODE 6 — Altitude Callouts (Cont)
- 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, at 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.
CFO1701002_021
0 ±10 ±20 ±30 ±40 ±50
0
200
1200
ROLL ANGLE (±DEG)
TERRAIN CLEARANCE (FEET)
150 FT
50 FT
30 FT
"BANK ANGLE
BANK ANGLE"
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航空翻译 www.aviation.cn
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