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DR Dead reckoning operation.
Flight director fail flag (annunciated within the attitude indicator).
FLC Flight level change mode – active.
FLC Flight level change mode – armed, VNAV has armed FLC mode (climb phase
only), while aircraft is holding at a VNAV target altitude.
FLC Flight level change overspeed mode – active (flashing).
GA
Lateral go-around mode – active.
Vertical go-around mode – active.
GP Vertical navigation glide path mode – armed, vertical navigation mode is active
and approach mode is armed.
GS Glideslope mode – captured/tracking.
GS Glideslope mode – armed.
HDG Heading select mode – active.
LNV1 LOC1
LNV2 LOC2
LNV3 VOR1
VOR2
Navigation mode – capture/tracking (identified by the navigation source).
LNV1 LOC1
LNV2 LOC2
LNV3 VOR1
VOR2
Navigation mode – armed (identified by the navigation source).
LNV1
LNV2
LNV3
FMS NAV is invalid.
PATH VNAV path mode – armed, vertical navigation mode is active (in cruise or descent
phase). VNAV path is armed.
PATH Vertical navigation mode is armed, but is unable to capture vertical path..
PTCH Pitch mode – active.
PTCH Vertical navigation mode is active and has automatically armed pitch mode (in
descent).
ROLL Roll mode – active.
SYNC Flight director synchronization is in progress.
TO
Lateral takeoff mode – active.
Vertical takeoff mode – active.
VALT Vertical navigation mode is selected and altitude hold mode is active.
VALTS Vertical navigation mode is selected and altitude select mode is active.
AUTOMATIC FLIGHT CONTROL SYSTEM
Description
Vol. 2 04−10−53
Oct 05/06
CL−605 Flight Crew Operating Manual
PSP 605−6
CONTROLS AND INDICATORS (CONT'D)
INDICATION DESCRIPTION
VALTS CAP Vertical navigation mode is selected and capturing.
VALTV Vertical navigation mode is selected – tracking FMS target altitude.
VALTV CAP Vertical navigation mode is selected – capturing FMS target altitude.
VFLC Vertical navigation mode is selected and FLC mode is active (in climb phase).
VFLC Vertical navigation mode, FMS VNAV is valid and flight level change overspeed
mode is active (flashes).
VGP Vertical navigation mode and glide path are captured.
VPATH Vertical navigation mode – capturing/tracking a vertical path.
VPTCH Vertical navigation mode selected and pitch mode is active.
VNAV Vertical navigation mode, and FMS VNAV is invalid (annunciated in the vertical
arm field).
VS Vertical speed mode – active.
VVS Vertical navigation mode selected and vertical speed mode is active.
YD Both yaw damper channels are disengaged or have failed.
AUTOTHROTTLE SYSTEM
General
The autothrottle system (ATS) is computer-operated and monitors aircraft airspeed. The ATS
controls engine power to maintain the reference airspeed or engine fan speed (N1). ATS control is
provided via the ATS control panel in the glareshield, and ATS modes of operation are displayed
on the glareshield mode status display (MSD) units.
The TOGA switch on the throttle lever is normally used to arm the ATS operation. The ATS
provides full-time automatic N1 synchronization, and includes pilot selectable N2 engine
synchronization in flight.
ATS thrust and speed modes are automatic and dependent on the AFCS mode logic. The AFCS
airspeed reference (speed bug) is used to select ATS speed targets, as displayed on the primary
flight display (PFD).
The ATS incorporates dual-servo control of the throttle levers to enable thrust and speed control
for the following phases of flight:
• Takeoff;
• Climb;
• Cruise;
• Descent;
• Landing; and
• Go-around (Certification pending).
AUTOMATIC FLIGHT CONTROL SYSTEM
Description
Vol. 2 04−10−54
Oct 05/06
CL−605 Flight Crew Operating Manual
PSP 605−6
AUTOTHROTTLE SYSTEM (CONT'D)
The ATS is available in AFCS coupled (autopilot or flight director) and disengaged modes of
operation.
NOTE
ATS is not available for single engine operations.
AUTOMATIC FLIGHT CONTROL SYSTEM
Description
Vol. 2 04−10−55
Oct 05/06
CL−605 Flight Crew Operating Manual
PSP 605−6
AUTOTHROTTLE SYSTEM (CONT'D)
Autothrottle System Overview
Figure 04−10−44
AUTOMATIC FLIGHT CONTROL SYSTEM
Description
Vol. 2 04−10−56
Oct 05/06
CL−605 Flight Crew Operating Manual
PSP 605−6
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