For Training Purposes Only
Sept 04
2-31
P I L O T T R A I N I N G G U I D E
AUTOMATIC FLIGHT CONTROL SYSTEM
FLC will command a proportional thrust increase/decrease during small climbs and
descents. In large climbs or descents, FLC will command climb thrust or idle thrust as
required.
Automatic transfer from IAS to Mach speed reference will occur in the climb, above
32,400 feet. Automatic transfer from Mach to IAS speed reference will occur in
descent, below 31,900 feet. Manual transfer can override the automatic transfer by
pushing the SPD PUSH CHG button. There is no auto transfer between IAS and Mach
in MAN speed.
MAN speed selection is accomplished by selecting MAN on the outer knob, and
turning the inner knob on the SPD button. An airspeed bug will follow the commands
from the inner knob, and is located on the airspeed tape of the selected PFD. The
MAN speed bug is cyan and can be in either kts or MACH.
FMS speed selection is programmed in the active flight plan in the FMS. A Mach
speed bug will appear on the airspeed tape of the selected PFD. The FMS speed bug is
magenta and can be in either kts or MACH.
NOTE
For aircraft not equipped with IAC Batch 2 software, FLC climbs
in Mach are prohibited.
For aircraft equipped with IAC Batch 2 software, FLC climbs
above Mach 0.86 are prohibited.
GX_02_030
Selected
Mach
Readout
Airspeed
Trend
Vector
Mach
Readout
0.88
220
200
190
180
170
160
150
0.856
M
185
6
4
Selected IAS
Readout
217
220
200
190
180
170
160
150
185
6
4
SPD
MAN
FMS
FLC
PUSH CHG
0.856
M
SPD
MAN
FMS
PUSH CHG
GX_02_031
200
Outer Knob
When rotated, enables
MAN mode or FMS mode
of airspeed reference.
Inner Knob
When rotated, sets
speed on airspeed
tape (MAN mode).
Manual Airspeed Bug
(Active)
FMS IAS or
MACH Speed Bug
(Standby)
GX_02_032
FMS IAS or
MACH Speed Bug
(active)
SPD
MAN
FMS
PUSH CHG
200
Manual Airspeed Bug
(standby)