BOMBARDIER Challenger 601-3A CL-600-2B16 Pilot Training Manual page 406

OPERATION
As angle of attack (AOA) begins to increase,
the pointers of the SPS TEST indicators
(Figure 15-15) move counterclockwise to
indicate decreasing stall margin.
Further AOA increases drive the pointers fur-
ther counterclockwise until both engines
receive continuous ignition, as indicated by
illumination of the white ignition ON lights.
If AOA continues to increase, the stick shak-
ers actuate. The autopilot, if engaged, will
disengage at this time.
If the warnings go unheeded and AOA con-
tinues to increase on both channels, the
pointers enter the STALL sector with the
following results:
• A warning tone sounds (warbler).
• The red STALL PUSH lights on the
glareshield flash.
• The stick pusher activates, moving the
control columns forward with a force
of approximately 80 pounds.
NOTE
The stick pusher will activate only if
both channels of the computer are in
agreement. If there is disagreement
between the channels for longer than
3 seconds, the stick pusher is inop-
erative, and the STALL PROTECT
FAIL lights will flash.
The stick pusher can be disengaged by press-
ing the AP/SP switch on either control wheel.
When AOA decreases, the stick pusher, stick
shaker, and continuous ignition functions cease
as their actuation points are passed.
FAA-certificated airplanes incorporate ac-
celerometer-actuated switches that disengage
the stick pusher if the airplane reaches 0.5 g,
preventing entrance into negative g flight.
15-16 CL 601-3A/R
CL-600-2B16 PILOT TRAINING MANUAL
TESTING
To test the stall protection system, perform
the following:
As the stall protection system test pointers
move counterclockwise, observe the following:
When the pointer stops moving, the STALL
PROTECTED FAIL lights flash.
FOR TRAINING PURPOSES ONLY
FlightSafety Canada
1. Check that the STALL PROTECT FAIL
lights are extinguished.
2. Hold both STALL PROTECTION test
switches in the TEST position simul-
taneously and continue holding.
• In the blue region, IGN A and B ON an-
nunciators illuminate.
• In the yellow region, both stick shak-
ers operate.
• In the red region, the aural warning and
t h e s t i c k p u s h e r o p e r a t e , a n d t h e
STALL/PUSH lights flash.
NOTE
The STALL PROTECT FAIL lights
may flash earlier in the sequence.
3. Press and release the AP/SP DISC but-
ton on each control wheel, in turn.
Check that the stick pusher disengages
and re-engages.
4. Place the G SWITCH in the TEST po-
sition and release. Check that the stick
pusher disengages and re-engages.
5. Release the STALL PROTECTION test
switches. Check that all indications
return to normal.
L t é e
L t d .