Flight Guidance Controller (Fgc); Flight Guidance Controller (Figure 5-18) - BOMBARDIER LEARJET 40 Pilot's Manual

Pilot's Manual

FLIGHT GUIDANCE CONTROLLER (FGC)

The flight guidance controller (Figure 5-18) is the prime controller for
the flight director and the autopilot/yaw damper. Located on the cen-
ter glareshield, the FGC provides the means, via push button switches,
for flight director mode selection, couple status and autopilot/yaw
damper engage selection. Flight director modes engage status is indi-
cated to the crew via a green light on the right edge of each mode
switch, which is illuminated when the mode is active and extinguished
when the mode is inactive or dropped. The controller also has several
rotary controls enabling selection of IAS, MACH, and VS targets, alti-
tude, course and heading. All push button selections are signaled to
both IC-600s via a discrete output from the FGC. The IC-600s then pro-
vide the drive to illuminate the appropriate light on the FGC.
FLIGHT GUIDANCE CONTROLLER
Figure 5-18
The FGC annunciations and controls are as follows:
FD 1/2 buttons — The flight director buttons (FD 1 and FD 2) are locat-
ed on the upper left/right corners of the flight guidance controller. De-
pressing these buttons alone will not bring the FD command bars into
view. Any FD mode selection causes the FD command bars to appear
on both PFDs. When the FD command bars are in view on both PFDs
and the autopilot is not engaged, depressing the master side FD button
will disengage all FD modes and remove the command bars from both
sides. Pressing the slave side FD button will remove the command bars
from the PFD on that side acting as a flight director clear function. With
the autopilot engaged, the FD command bars will be in view at all times
on the coupled side and cannot be removed from the PFD. The opposite
side FD command bars can be removed from view by depressing the
appropriate FD 1 or FD 2 button.
5-66
PM-132A