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functions are inoperative:
MESSAGE MEANING
TAWS FAIL All TAWS functions have failed.
TAWS WINDSHEAR
FAIL The windshear detection has failed.
TAWS TERR NOT
AVAIL Terrain database not available for current location.
TAWS TERR FAIL The terrain awareness alerting and display functions and the terrain clearance
floor function are inoperative due to a fault condition.
TAWS BASIC FAIL TAWS Modes 1−6 are failed.
The following table lists a summary of the TAWS modes and associated indications:
NAVIGATION SYSTEMS
Description
Vol. 2 17−10−32
Oct 05/06
CL−605 Flight Crew Operating Manual
PSP 605−6
TERRAIN AWARENESS WARNING SYSTEM (TAWS) (CONT'D)
TAWS Aural and Visual Alerts
MODE CONDITION
AURAL WARNING
LEVEL 1
VISUAL
WARNING
LEVEL 1
AURAL
WARNING
LEVEL 2
VISUAL
WARNING
LEVEL 2
1
Excessive descent
rate
“SINK RATE” GND PROX “PULL UP” PULL UP
2A
Excessive terrain
closure rate (Flaps
not extended)
“TERRAIN TERRAIN” GND PROX “PULL UP” PULL UP
2B
Excessive terrain
closure rate (Flaps
fully extended)
“TERRAIN TERRAIN” GND PROX “PULL UP” PULL UP
3
Altitude loss after
takeoff or go-around
“DON’T SINK
DON’T SINK”
GND PROX None None
4A
On approach with
gear and flaps up
“TOO LOW
TERRAIN”
GND PROX
“TOO LOW
GEAR”
GND PROX
4B
On approach with
gear down and flaps
not in landing
configuration
“TOO LOW
TERRAIN”
GND PROX
“TOO LOW
FLAPS”
GND PROX
4C
Takeoff or go-around
unsafe terrain
clearance
“TOO LOW
TERRAIN”
GND PROX None None
5
Descent below
glideslope
“GLIDESLOPE
GLIDESLOPE”
(Soft alert)
GND PROX
“GLIDESLOPE
GLIDESLOPE”
(Hard alert)
GND PROX
6
Approaching
minimums
“APPROACHING
MINIMUMS”
None None None
6 Minimums “MINIMUM” None None None
6 Altitude callouts
1000, 500, 50, 40, 30,
20, 10 feet RA
None None None
6 Excessive bank angle “BANK ANGLE” None None None
7
Windshear alerting
caution (increasing
performance) warning
(decreasing
performance)
None
Amber
WINDSHEAR
“WINDSHEAR,
WINDSHEAR,
WINDSHEAR”
Red
WINDSHEAR
Terrain look ahead
“CAUTION TERRAIN
CAUTION TERRAIN”
GND PROX
“TERRAIN,
TERRAIN PULL
UP”
PULL UP
NAVIGATION SYSTEMS
Description
Vol. 2 17−10−33
Oct 05/06
CL−605 Flight Crew Operating Manual
PSP 605−6
TERRAIN AWARENESS WARNING SYSTEM (TAWS) (CONT'D)
MODE CONDITION
AURAL WARNING
LEVEL 1
VISUAL
WARNING
LEVEL 1
AURAL
WARNING
LEVEL 2
VISUAL
WARNING
LEVEL 2
Obstacle detection
“CAUTION
OBSTACLE
CAUTION
OBSTACLE”
GND PROX
“OBSTACLE,
OBSTACLE
PULL UP”
PULL UP
Terrain clearance
floor
“TOO LOW
TERRAIN”
GND PROX None None
VHF NAVIGATION SYSTEM
Description
The aircraft is equipped with two digital VHF navigation (VHF NAV) receivers, which receive and
process data from ground stations for en route navigation, precision approach and landing.
Components and Operation
Two VOR/LOC antennas are installed on the left and right sides of the vertical stabilizer. An
antenna coupler, installed within the vertical stabilizer, balances the signal input from both
antennas, and routes it to the VHF Nav receivers.
A single glideslope (GS) antenna is installed behind the radome, below the weather radar
receiver/transmitter and antenna assembly. The GS antenna provides output to both VHF Nav
receivers.
The two marker beacon antennas are installed on the bottom of the aft fuselage.
The VHF Nav receivers include fully integrated circuitry for receiving and processing of VOR, ILS
(localizer, glideslope), marker beacon and ADF signals. The ADF is independent of the other Nav
receiver functions, and is covered later in this chapter.
The VHF Nav receivers route navigation data to the IAPS for distribution to user systems,
including the flight director, flight displays and the FMS. Station audio is provided to the aircraft’s
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庞巴迪挑战者605机组操作手册 CL605-NAVIGATION_SYSTEMS(13)
