Challenger 604 Automatic Flight Control System

Front 1

The Collins ProLine 4 avionics suite includes dual autopilots

Back 1

With dual (left and right) flight directors for each autopilot system

Front 2

The flight director systems

Back 2

Always default to the left flight director at AP/FD selection

Control the flight director command bars and provide steering signals to the autopilot

Front 3

Which transponder should be selected if the right flight director is in use

Back 3

#2 independent of which AFCS is selected

Front 4

The autopilots are described as

Back 4

Two axis systems with aileron and elevator servos and 2 rudder linear actuators for yaw damping

Front 5

The autopilots have trim control for

Back 5

Elevators only

Front 6

Each autopilot consists of

Back 6

A pair of flight control computers

Left and right flight directors

Front 7

The selected AP/FD modes are confirmed by

Back 7

The related indications shown above the attitude sphere on the PFDs

Front 8

The flight director commands shown on the PFDs

Back 8

Comes from the master flight director unless TO, GA or APPR modes are selected at which time the indication on each PFD comes from the onside flight director

Front 9

A left pointing arrow on the PFDs indicates

Back 9

The left flight director is master

Front 10

If the right flight director is master

Back 10

The right flight director provides steering signals to the autopilot: the right HSI is recognized with NAV and APPR modes: ADC 2 provides signals for vertical mode

Transponder 2 should be selected

Front 11

Failure of the autopilot is indicated by

Back 11

Red Flashing AP indication on each PFD, continous cavalry charge aural alert

Front 12

Basic AP/FD modes

Back 12

Roll and Pitch

Front 13

Pressing the FD SYNC button on either control wheel while the autopilot is engaged

Back 13

Releases the autopilot servo clutches for manual aircraft control and the green AP and FD arrow annunciations turn yellow

Resets references for FLC, VS, ALT, PITCH and ROLL modes and the FD command bars synchronize with the existing aircraft attitude

Yellow SYNC appears on both PFDs if FLC, VS, ALT PTCH or ROLL modes are displayed

Front 14

An automatic NAV to NAV transfer results in

Back 14

Automatic NAV tuning and course selection for localizer based approaches

Front 15

During NAV to NAV transfer, automatic transition from a FMS NAV source to a localizer NAV source and subsequent localizer capture requires:

Back 15

APPR or B/C button be pushed, as appropriate

Front 16

During FMS-based approaches, what annunciation must be in view before continuing past the FAF?

Back 16

APPR or GPS APPR, as appropriate

Front 17

An amber A annunciation on the PFDs and the AP TRIM LWD caution EICAS message indicates

Back 17

The autopilot is holding continous left wing down via the aileron servo to maintain course or heading or bank angle.

Front 18

The TURB button on the flight guidance panel

Back 18

Is an autopilot only mode

Does not change the mode annunciations on the PFDs

Front 19

The autopilot disengages

Back 19

When both yaw dampers fail(amber YD annunciation on both PFDs and YAW DAMPER caution EICAS message)

Front 20

Active or armed status for the AP/FD modes is indicated by

Back 20

Green (active) and white (armed) annunciations

Green/active flashes for 5 seconds on the left, lateral modes and ADC source on the right

Front 21

Flight mode annunciations shown above the attitude shpere indicate

Back 21

Lateral armed and active modes on the left, vertical armed and active modes on the right

Front 22

If the left flight director is in use, the command bars can be removed

Back 22

On both PFDs by pushing the left FD button if the autopilot is not engaged

On the right PFD by pushing the right FD independent of autopilot use

Front 23

if the button on the side of either thrust lever is pushed while airborne

Back 23

The flight directors provide independant indications (split FDs) and GA/GA mode annunciations appear on both PFDs

The thrust levers advance to takeoff/go-around N1 if autothrottles are engaged

The FD command bars indicate 10 degrees noseup/wings level attitude and the autopilot disengages

Front 24

When the buttons the side of either thrust lever are pused on the ground, the flight director command bars

Back 24

Indicate 14 degrees noseup attitude with both engines running

Reset to 10 degrees noseup if an engine fails

Command bank angles up to 5 degrees to maintain the heading existing at rotation if an engine fails.

Front 25

The altitude set by the ALT knob

Back 25

Is recongnized by the flight director (level off occurs) when the aircraft approaches the altitude while in all vertical modes, except VGP or GS.