Ap Disengage; Cpl Button; Yd Disengage - Honeywell PRIMUS 1000 Pilot's Manual

PRIMUSr1000 Integrated Avionics System
AP Disengage -- Normally, the autopilot is disengaged by pushing
D
the AP disconnect button located on the outboard side of each
control wheel. The autopilot can also be disengaged by any one of
the following:
- Pushing the AP or YD button on the GC
- Operating the pilot' s or copilot' s manual elevator trim switch or
backup elevator trim.
CPL Button -- The CPL button is used to couple the left or right side
D
HSI data, and that side' s flight director computations to the autopilot.
The system powers up coupled to the left side.
NOTES: 1. If the selected navigation source is not the same on
2. Under some conditions, particularly when the FD
When the system is transferred to the cross--side HSI, all flight director
modes are cancelled. Operating modes must be reselected. The
pointer on the right or left side of the CPL button lights to indicate which
HSI are selected. A couple arrow is also displayed on both PFDs.
NOTE: The arm or capture status of the flight director modes are
only annunciated on the PFD.
YD Button -- The YD button is used to select only yaw damper.
D
YD Disengage -- The yaw damper can be disengaged by any one
D
of the following:
- Pushing the YD button on the GC
- Pushing the AP disconnect button on the outboard side of each
of the control wheels.
NOTE: The autopilot and yaw damper are automatically
disengaged when either aircraft stall protection system
detects an actual or stick shaker stall condition.
Flight Guidance System (FGS)
6-2
both PFDs, and the FD NAV mode is selected, the
command bar on the uncoupled side is removed.
NAV mode is selected, the command bars on each
side may not show the capture of a navigation
course at the same time. This causes a split in the
right and left command bars.
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