BOMBARDIER Challenger 601-3A CL-600-2B16 Pilot Training Manual page 485

• Pressing either control wheel AP/SP
DISC switch
• Pressing either thrust lever GA switch
• Pressing either control wheel touch con-
trol steering (TCS) switch (autopilot
momentarily disconnects for as long as
the switch is pressed)
• Pressing the YD button
• Actuating either control wheel manual
pitch trim switch (UP or DN direction)
• Placed the ground maintenance test
switch ON
• Either stall protection system (SPS)
senses an impending stall condition
(>shaker) threshold
• Pressing.the FGC AP button
• The aircraft is on ground (WOW)
• The manual turn control is out of detent
(prior to autopilot engagement)
VOR HDG
KIAS
20
280
10
260
250
240
10
220
20
M
.594 .59
Figure 16-65. Flight Director Couple Arrows
FOR TRAINING PURPOSES ONLY
FlightSafety Canada
CL-600-2B16 PILOT TRAINING MANUAL
Manual FD Sensor Data Selection
All flight director sensor data sources are se-
lected via the CPL pushbutton on the flight
guidance controller, except during dual CPL
when both sides are simultaneously coupled.
Flight director guidance sensor data includes
NAV data as displayed on the coupled EHSI
and DADC data.
The coupled side is indicated by the arrow lo-
cated at each side of the CPL button, depend-
ing on the side selection (Figure 16-65). In dual
CPL, both arrows are illuminated. A couple
arrow is also displayed on each EADI just
above the roll attitude index.
During normal operation, all the flight direc-
tor modes using NAV receiver data (either
ARM or CAP) are canceled following a CPL
transition. AFCS non-FD-related modes (pitch
hold, wings level, heading hold) are not af-
fected by CPL transitions.
Invalid Sensor Data
An invalid data condition allows selection of
the coupled side, but the flight director modes
using these invalid sensor data (DADC or NAV
ALT AP
ASEL
240
00
20
10
10
20
L t é e
L t d .
FLIGHT DIRECTOR
COUPLE ARROW
CL 601-3A/R 16-73