Preselected Course Approach - Honeywell SPZ-8000 Pilot's Manual

SPZ--8000 Digital Integrated Flight Control System
The back course mode is cancelled by:
Pushing the BC button on the flight guidance controller
D
Selecting the heading or go--around modes
D
Selecting standby mode
D
Coupling to the cross side EHSI
D
Selecting the APP or NAV modes
D
Tuning a different NAV frequency or source.
D

PRESELECTED COURSE APPROACH

When FMS 1 or 2 is selected for display on the EHSI, selecting a LOC
frequency on the on--side VHF NAV receiver and pushing the V/L button
on the display controller displays the course preselect pointer.
The flight director still tracks FMS data, but the course preselect lateral
deviation is read by the flight guidance computer.
At this point, the pilot has two options:
Direct Transition to Approach -- If the pilot pushes the V/L button
D
on the display controller a second time, the system changes the
course preselect display to the normal ILS course select display and
the flight director mode changes to heading hold. The pilot can then
shoot a standard approach by arming the approach mode.
Automatic Transition to Approach -- If the pilot arms approach,
D
the system stays in the FMS guidance mode but selects LOC (white)
and GS (white) armed, while it monitors the course preselect
deviation, as shown in Figure 8--23. When the required capture
conditions are met, the system transitions to LOC and drops the
FMS as the NAV source. The course select display transitions to the
normal ILS course select display.
NOTE: The preselected course approach mode is not available
when LASERTRAK
Modes of Operation
8-28
is selected for display.
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