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Back course capture clears half bank and heading modes. Back course mode is annunciated on the PFD with two messages: green in the lateral capture field indicating captured NAV source and also green in the lateral arm field, which identifies the armed NAV source (B/C1 or B/C2).
CFO0401002_013
Volume 2 Flight Crew Operating Manual Sep 13/2004 CSP 100-6 REV 1
04-01-12
FLIGHT DIRECTOR LATERAL MODES (Cont)
1/2 BANK MODE
Half bank mode can be manually selected by pushing the 1/2 BANK button on the FGP except when any of the following modes is active; Approach Capture or Track, NAV Capture or Track in LOC or GA. It will be automatically selected when climbing through 31 600 ft. pressure altitude (the half bank transition altitude) or if the aircraft is above that altitude when the flight director is turned on. This mode selection is inhibited when the aircraft is in takeoff mode, go around mode, approach mode capture or localizer capture.
The Half Bank Mode is manually cleared by pushing the 1/2 BANK button again. This mode is automatically cleared when descending through the half bank transition altitude, by takeoff mode, by go-around mode, by approach capture or any lo-calizer capture.
The Half Bank Mode reduces the maximum commanded bank angle to 15°. Half Bank Mode has no effect on roll mode operation. Half Bank Mode is annunciated by a green arc drawn above the roll scale index marks on the PFD. The length of the mark represents +/- 15° of roll.
FLIGHT DIRECTOR VERTICAL MODES
There are 10 vertical flight director modes.
-Pitch (PTCH)
-Altitude preselect (ALTS)/Altitude hold (ALT)
-Takeoff (TO)
-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.
May 06/2005 Flight Crew Operating Manual Volume 2 REV 2 CSP 100-6
04-01-13
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
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