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- Overspeed
- Vertical Navigation (VNAV)
- Glidepath (GP)
- FLC
- Vertical speed (VS)
- Glideslope (GS)
- Go-around (GA)
Vertical modes are armed or activated by switches or a UP/DOWN wheel on the flight guidance panel or TOGA switches
on the thrust levers. Disabling the active vertical mode is accomplished by pushing the active FGP push button or
by selecting another vertical mode.
00
IAS 225
M
.54
.50
.42
.38
4200
4
2
1
1
4
350 16000
350 00
4
3
100
00
00
352 00
80
20
2
29.92 IN
.46
.46
.5
1
UTC
° C
11 : 42
SAT -15
ISA -5 ° C
10
20
1/2 BNK HDG
ALTV FLC GP
AP YD
APPR LOC2
20
FLC
10
REV 2
AUTOMATIC FLIGHT CONTROL SYSTEM
Volume 2 Flight Crew Operating Manual May 06/2005
04-01-14 CSP 100-6 REV 2
FLIGHT DIRECTOR VERTICAL MODES (Cont)
PITCH MODE
When pitch mode is selected, the flight director generates commands to hold the current pitch attitude. Selection of the Pitch
Mode is automatic in the following cases:
- Any other vertical mode has been deselected, either manually or automatically
- Autopilot is engaged with the FD off
- Flight Director is ON with no other vertical mode(s) selected
- The SYNC button is pressed in go-around mode
- Go-around is active mode and another lateral mode is selected
- While the AP is engaged or FD is ON, the coupled side is changed
- The pre-select altitude is changed during the pre-select altitude capture
- The FGP UP/DOWN wheel is moved (except in: VS Mode, Vertical Glide path, Capture or Track, or Overspeed
function)
- If VNAV has been selected, the FMS may select the pitch hold mode
- Deselecting VNAV when GP, PATH or FCS ALTS are the active modes with flight plan target altitude as the active
reference
The pitch mode is deselected when selection or automatic capture of another active vertical mode occurs. The pitch reference
value can be changed by using the UP/DOWN wheel on the FGP. Rotation of the VS/pitch wheel changes the pitch
reference by 0.5°/click. The pitch reference is reset to the current pitch attitude, upon either AP engagement, transferring
to pitch mode, or FD sync. When in altitude select capture, rotating the VS/pitch wheel also re-arms altitude select mode.
When capturing or tracking a preselected altitude, a new preselect altitude must be chosen prior to selection of pitch mode,
to avoid an immediate recapture of the existing preselected altitude.
Pitch Mode is annunciated by PTCH in green in the vertical capture field.
00
IAS 225
M
.54
.50
.42
.38
4200
4
2
1
1
20 4
10
350 16000
350 00
4
3
100
00
00
352 00
80
20
2
29.92 IN
.46
.46
.5
UTC
° C
11 : 42
SAT -15
ISA -5 ° C
ROLL YD PTCH
1
20
10
AUTOMATIC FLIGHT CONTROL SYSTEM
May 06/2005 Flight Crew Operating Manual Volume 2
REV 2 CSP 100-6 04-01-15
FLIGHT DIRECTOR VERTICAL MODES (Cont)
ALTITUDE SELECT (ALTS)
The altitude select mode consists of arm, capture and track states. In the arm state, the FGC monitors aircraft closure rates
towards the target altitude and determines the optimum capture point. The capture state performs calculations for a smooth
acquisition of the target altitude. In the track state, the system maintains the target altitude. There are two possible target
altitudes for ALTS operation:
- Preselect Altitude value – Manually selected by the pilot using the ALT switch on the FGP
- FMS flight plan target altitude provided by the FMS
The ALTS mode will capture and track the altitude that is closest in the direction the aircraft is headed. This mode is automatically
selected (no button for manual selection is provided) upon existence of any mode (FD is selected on, or AP is
engaged) except for glideslope capture, vertical go around, altitude hold or VNAV glide path capture, while the FMS altitude
is invalid or missing.
ALTS arm is deselected upon occurrence of any of the following:
- Automatic transition to the capture state
- Turning off the FD while the AP is disengaged
- Activation of APPR mode
- Selection of vertical go-around or altitude hold modes
ALTS capture is deselected upon the occurrence of any of the following:
- Automatic transition to the track state
- Turning off the FD while the AP is disengaged
- Selection of any other active vertical mode
　
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