BOMBARDIER Challenger 601-3A CL-600-2B16 Pilot Training Manual page 405

STALL PROTECTION
SYSTEM
GENERAL
The dual-channel stall protection system pro-
vides warning of an approaching stall by a vi-
sual display on the system test indicators,
automatic engine ignition, stick shaking, aural
warning, flashing lights, and stick pushing.
Both channels are powered separately and op-
erate independently, displaying stall margin on
individual test indicators.
Inputs to the system computer are supplied by
two externally mounted angle-of-attack vanes,
two lateral accelerometers, two altitude trans-
ducers, flap position transmitters, and the
WOW system. From these inputs, the computer
PROVIDES REFERENCE FOR ALL STALL
WARNING/STICK PUSHER SEQUENCE
BUT IS NOT CALIBRATED TO PROVIDE
AOA INDICATION OR APPROACH
SPEED REFERENCE
SPS TEST
INDICATOR
STALL PROTECTION
SYSTEM TEST
INDICATOR
STALL
PROTECTION
TEST PUSHER
ON
OFF
OFF
N/W WARN FLOOD
STEER LTS LTS
ARMED TEST BRIGHT
OFF OFF
DIM
MASTER STALL
CAUTION
PUSH
PRESS TO
RESET
ALT
STALL
COMP
PROTECT
FAIL FAIL
STALL
PROTECT
STALL PROTECTION
STATIC
SYSTEM—STATIC
NORMAL
SOURCE ISOLATOR
SPS FUNCTIONS:
• AUTO IGNITION
• AUTOPILOT DISCONNECT
• STICK SHAKERS
CLOSED
• AURAL WARNING
• STICK PUSHER
Figure 15-15. Stall Protection System
FOR TRAINING PURPOSES ONLY
FlightSafety Canada
CL-600-2B16 PILOT TRAINING MANUAL
establishes actuation points for stick shaking,
continuous ignition, aural warning, and stick
pushing. The WOW inputs prevent system op-
eration on the ground, except during testing.
Two transducers, receiving static pressure,
supply altitude information to the computer for
use in altitude compensation of stall margin.
The transducers are actually modified air data
computers, as indicated on the unit data plates.
Electrical power to the transducers is through
the respective stall channel circuit breakers.
The signal from one of the transducers is
routed through the pilot's stall protection
test switch. Actuation of the switch inter-
rupts the altitude signal, causing a disagree-
ment that illuminates the ALT COMP FAIL
lights (Figure 15-15).
ADVISES CREW THAT PUSHER
SYSTEM HAS ACTIVATED
STALL MASTER
CAUTION
PUSH
PRESS TO
RESET
ALT
STALL
COMP
PROTECT
FAIL
FAIL
FLASHING—SYSTEM FAULT
STEADY—PUSHER IS
UNPOWERED OR
SELECTED OFF.
MIC
AP/SP DISC BUTTON
(BOTH CONTROL
WHEELS)
ADVISES CREW THAT ALTITUDE
COMPENSATION IS INOPERATIVE.
STALL PROTECTION IS STILL
WORKING BUT THE COMPUTER
REVERTS TO A 15,000-FOOT
REFERENCE
STALL
PROTECTION
PUSHER
G SWITCH
TEST TEST
OFF
WARN FLOOD
LTS LTS
TEST BRIGHT
OFF
DIM
CL 601-3A/R 15-15
L t ée
L t d .
ON
OFF