BOMBARDIER Challenger 601-3A CL-600-2B16 Pilot Training Manual page 395

NL NR
RUD
TO
NUP
STAB
AIL
LWD RWD
TRIM
Figure 15-4. Rudder and Aileron Trim Controls and Indicators
Aileron trim is provided by small displace-
ments of the ailerons by the PCU's. Movement
of the AIL TRIM switch (Figure 15-4) ener-
gizes the aileron trim actuator. The actuator
drives the roller arm of the artificial feel unit
through mechanical linkage. The cam retains
the springloaded roller, and the quadrant moves
to position control valves on the aileron PCU's.
Since the trim actuator drives both the left
and right aft quadrants, both the pilot's and the
copilot's control wheels move when trim is ap-
plied. The amount of trim applied is shown on
the TRIM position indicator.
Operation
Movement of either control wheel mechani-
cally positions the control valves on the two
PCU's at each aileron. This directs No. 1 and
No. 3 hydraulic systems pressures to the left
aileron PCU's, and No. 2 and No. 3 systems
pressures to the right aileron PCU's. Loss of
a ny o n e h y d r a u l i c s y s t e m p ow e r i n g t h e
ailerons will not degrade control authority.
As the ailerons deflect, a followup linkage
repositions the control valves to neutral,
CL-600-2B16 PILOT TRAINING MANUAL
RUD TRIM
L
R
CHAN 1
CHAN 2
OFF
stopping and holding the ailerons in the
selected position. Actual aileron position is
constantly displayed on the flight surface
position indicator (Figure 15-5).
If a control valve on any aileron PCU jams or
if there is a hydraulic pressure deficiency,
the amber ROLL light on the servo monitor
panel illuminates, accompanied by a FLT
CONT annunciator and flashing MASTER
CAUTION lights (Figure 15-6). When all
three hydraulic systems are depressurized,
illumination of the green MON SAFE light in-
dicates proper operation of the monitoring
system. (Annunciator lights are shown in
color in the Annunciator Section.)
FOR TRAINING PURPOSES ONLY
FlightSafety Canada
PITCH TRIM
PUSH
OVSP
INOP
CHANGE
CHAN
INOP
L t ée
L t d .
AIL TRIM
R
L
OFF
CL 601-3A/R 15-5