Flight Guidance Controller

Question 1

(FGCS) Flight Guidance Control System functions include?

Answer 1

1. Two-axis fail-passive autopilot/yaw damper
2. Dual independent flight directors
3. Automatic Pitch Trim
4. Yaw Damper System
5. Mach/configuration Trim System

Question 2

Main system components of the FGCS consist of the:

Answer 2

1. IC-600 integrated avionics computers (IACS)
2. Flight guidance controller (FGC)
3. Servo Motors

Question 3

FD1 Button (AP engaged)

Answer 3

Press- if autopilot is engaged
- no effect if FD1 is the master FD
- Removes pilot FD command bars and annunciations if FD2 is the Master FD

Question 4

FD1 Button (AP disengaged)

Answer 4

Press-

• No effect if no FD modes are selected
• Removes both pilot and copilot FD command bars and annunciations if FD1 is the master FD

-Removes pilot FD command bars and annunciations if FD2 is the master FD

Question 5

HDG Button

Answer 5

Press-

-Alternately selects or clears heading select mode

Question 6

NAV Button

Answer 6

Press-

-Alternately selects or clears navigation mode on the master side

-Type of navigation mode is determined by the active navigation source

Question 7

APP Button

Answer 7

Press-

Alternately selects or clears approach mode on master side and arms the vertical mode (GS or VNV), if appropriate
- Type of approach is determined by the active navigation source

Question 8

AP Button

Answer 8

Press-

-Engages autopilot and yaw damper

• Subsequent press disengages the autopilot only

Question 9

SPD Button

Answer 9

Press-

• Alternately selects or clears indicated speed hold mode
• Synchronizes the airspeed/Mach reference (bug) to the current airspeed/Mach value

Question 10

FLC Button

Answer 10

• First press changes the mode to FLC
• Second press changes mode to FLCH

-Thirst press reverts to PIT mode

• Toggles between normal and high-speed customized climb or descent profile changes

Question 11

VS Button

Answer 11

Press-

• Alternately selects or clears vertical speed hold home (VS)
• When VS is selected, the airspeed reference (bug) is removed from airspeed scale

Question 12

ALT Button

Answer 12

Press-

• Alternately selects or clears altitude hold mode (ALT)

Question 13

FD2 Button (AP Engaged)

Answer 13

Press-

• No effect if FD2 is the master FD

-Removes copilot FD command bars and annunciations if FD1 is the master FD

Question 14

FD2 Button (AP disengaged)

Answer 14

• No effect if no FD modes are selected

-Removes both pilot and copilot FD command bars and annunciations if FD2 is the master

-Removes copilot FD command bars and annunciations if FD1 is the master FD