BOMBARDIER Challenger 601-3A CL-600-2B16 Pilot Training Manual page 394

The aileron system has dual control linkages.
Movement of either control wheel actuates
both sets of linkages to position control valves
on the PCU's at each aileron. If jamming oc-
curs in either set of mechanical linkages,
pulling the ROLL DISCONNECT handle on
the center pedestal mechanically disconnects
the two sets of linkages (Figure 15-2). This per-
mits control of one aileron through the cable
linkage that is free.
An antifloat torsion bar on each aileron pre-
vents a disconnected surface from floating up-
ward into the area of low pressure. The torsion
bar does not exert enough force to interfere with
the normal movement of an operating PCU.
COMMAND
INPUT
ROLLER
ARM
ARTIFICIAL FEEL MECHANISM
Figure 15-3. Aileron Trim and Artificial Feel Mechanism
15-4 CL 601-3A/R
CL-600-2B16 PILOT TRAINING MANUAL
AUTOPILOT
SERVO INPUT
AILERON
TRIM ACTUATOR
CAM
FOR TRAINING PURPOSES ONLY
FlightSafety Canada
Aileron load feel is provided by an artificial
feel unit (Figure 15-3) that forms part of the
aft quadrant. A spring-loaded roller is held into
a cam fixed to the aft quadrant. Movement of
the quadrant and cam causes the roller to ride
up the cam. Since the cam is fixed to the quad-
rant, quadrant movement is opposed by the
spring force which attempts to retain the roller
in the center of the cam. From the aft quadrant,
a cable circuit is connected to the aileron PCU
input linkage.
Autopilot servo inputs are applied to the right
aileron linkage. Jamming in the right aileron
control linkage will prevent autopilot actua-
tion of the aileron.
AFT CABLE
QUADRANT (RH)
L t é e
L t d .
RIGHT MAIN
WHEEL WELL
AILERON TRIM
ACTUATOR