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Oct 05/06
CL−605 Flight Crew Operating Manual
PSP 605−6
FLIGHT DIRECTORS (CONT'D)
When captured, LOC navigation mode is cleared automatically by:
• Selection of another lateral mode,
• Changing the active NAV source, or
• Loss of localizer signal.
LOC mode can also be cleared by pressing the NAV button again.
LOC Navigation Mode
Figure 04−10−21
FMS Navigation Mode
In FMS navigation mode, the flight director uses lateral steering commands from the active
flight management computer (FMC) to capture and track the desired track to the “TO”
waypoint.
AUTOMATIC FLIGHT CONTROL SYSTEM
Description
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CL−605 Flight Crew Operating Manual
PSP 605−6
FLIGHT DIRECTORS (CONT'D)
When the NAV button is pressed, and the active navigation source is FMS1 or FMS2, the FMS
navigation mode arms, and a white LNV1 (or LNV2) annunciation is displayed in the armed
lateral mode field on both PFDs. When the FMC capture criteria are met, the armed
annunciation is removed, and a green LNV1 (or LNV2) annunciation is displayed in the active
lateral mode field on both PFDs.
Depending on the display selected on the PFD, a white track is displayed in PPOS format, or a
magenta deviation bar is displayed in ROSE format.
When captured, FMS navigation mode is cleared automatically by selection of another lateral
mode, by changing the active NAV source, or by loss of FMS steering validity. FMS navigation
mode can also be cleared by pressing the NAV button again.
FMS Navigation Mode
Figure 04−10−22
Approach Mode
Approach mode is used to fly a localizer-based (ILS) or FMS-based nonprecision approach.
During approach mode, the flight directors operate in dual independent mode.
Approach mode is selected by pressing the APPR button on the FCP. The displayed navigation
source will determine which approach submode will be in operation.
ILS-Based Approach
Pushing the APPR button alternately selects and clears approach mode. Approach mode
localizer capture functions the same as localizer navigation (NAV) mode. Additionally,
glideslope (GS) mode is armed for capture.
AUTOMATIC FLIGHT CONTROL SYSTEM
Description
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CL−605 Flight Crew Operating Manual
PSP 605−6
FLIGHT DIRECTORS (CONT'D)
Automatic NAV-to-NAV Transfer
When a localizer-based approach is selected from the FMS and the aircraft is within 30 nm of
the airport, the localizer frequency is automatically tuned and the course display is set to the
appropriate inbound course. The localizer deviation scale and pointer are superimposed in
cyan on the PFD HSI, and a cyan LOC1 (or LOC2) navigation source is displayed below the
active navigation source (FMS 1 or FMS 2).
With approach mode armed (APPR button selected on FCP) during localizer intercept, the
active navigation source will automatically change from FMS to LOC (automatic NAV to NAV
transfer) at localizer capture. If required, approach mode can then be canceled and navigation
mode selected by pressing the NAV button on the FCP.
AUTOMATIC FLIGHT CONTROL SYSTEM
Description
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CL−605 Flight Crew Operating Manual
PSP 605−6
FLIGHT DIRECTORS (CONT'D)
ILS Approach Mode
Figure 04−10−23
AUTOMATIC FLIGHT CONTROL SYSTEM
Description
Vol. 2 04−10−26
Oct 05/06
CL−605 Flight Crew Operating Manual
PSP 605−6
FLIGHT DIRECTORS (CONT'D)
FMS-Based Approach
Pushing the APPR button alternately selects and clears approach mode. The FMS-based
approach mode functions the same as FMS navigation (LNV) mode. Additionally, glide path
(GP) mode is armed for capture, to track the desired glide path from the FMS if VNAV is
selected.
Refer to the Collins FMS–6000 Flight Management System Pilot’s Guide for additional
information on FMS-based approaches.
AUTOMATIC FLIGHT CONTROL SYSTEM
Description
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CL−605 Flight Crew Operating Manual
PSP 605−6
FLIGHT DIRECTORS (CONT'D)
FMS Approach Mode
Figure 04−10−24
AUTOMATIC FLIGHT CONTROL SYSTEM
Description
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CL−605 Flight Crew Operating Manual
PSP 605−6
FLIGHT DIRECTORS (CONT'D)
Localizer Back Course Mode
Back course mode (B/C) generates commands to track a localizer signal using reverse-sensing.
Back course mode is armed by pressing the B/C button on the FCP. Back course mode localizer
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