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NOTE
The autopilot will disengage whenever a TOGA button is pressed on
the ground or in-flight. The autopilot visual and aural disengage
warnings may be canceled by pushing either TOGA button again, or
by pushing any AP/SP DISC switch.
With takeoff mode selected, the heading reference is continuously set to the current aircraft
heading while maneuvering on the ground. After lift-off (weight off wheels), the takeoff mode
generates a heading hold command, with a five-degree bank limit, using the heading which
existed at the moment of lift-off. These heading references are independent of the HDG bug.
Takeoff lateral mode is cleared by selecting another lateral mode.
Vertical Takeoff Mode
Figure 04−10−26
Lateral Go-Around Mode
In the air, pushing either TOGA (takeoff/go-around) button mounted on the thrust levers selects
the go-around mode and clears all other lateral modes. Lateral and vertical go-around mode
(GA) selections are coincident. When go-around mode is active, a green GA appears in the
active lateral field of the FMA. During go-around mode, the flight directors operate in dual
independent mode.
NOTE
The autopilot will disengage whenever a TOGA button is pressed on
the ground or in-flight. The autopilot visual and aural disengage
warnings may be canceled by pushing either TOGA button again, or
by pushing any AP/SP DISC switch.
AUTOMATIC FLIGHT CONTROL SYSTEM
Description
Vol. 2 04−10−29
REV 66, Feb 01/07
CL−604 Operating Manual
PSP 604−6
FLIGHT DIRECTORS (CONT'D)
The lateral component of go-around mode (GA) generates commands to maintain the heading
that existed at the moment of GA mode activation. Go-around mode generates a heading hold
command with a five-degree bank limit. This heading reference is independent of the HDG bug.
Go-around mode is cleared by selecting another lateral mode.
Vertical Go−Around Mode
Figure 04−10−27
Flight Director Vertical Modes
There are nine vertical flight director modes (bold letters refer to the flight control panel button
selections):
• Pitch
• Altitude preselect
• Altitude hold (ALT)
• Vertical speed (VS)
• Flight level change (FLC)
• Takeoff
• Go-around
• Glideslope
• FMS vertical navigation (VNAV)
Vertical modes are armed or activated by the FCP pushbuttons, a pitch wheel on the flight
control panel, or by TOGA switches on the thrust levers. In general, disabling the active vertical
mode is accomplished by reselecting the active FCP pushbutton or by selecting another vertical
mode.
Pitch Mode
Pitch mode (PTCH) is the basic vertical operating mode, and is automatically selected when no
other vertical mode is active and the flight director is on. A green PTCH annunciation appears in
the vertical active field of the FMA when pitch mode is active.
AUTOMATIC FLIGHT CONTROL SYSTEM
Description
Vol. 2 04−10−30
REV 66, Feb 01/07
CL−604 Operating Manual
PSP 604−6
FLIGHT DIRECTORS (CONT'D)
When PTCH mode is active, the FCC generates commands to maintain the aircraft’s pitch angle
reference. The pitch angle reference value may be adjusted by rotating the VS/pitch wheel on
the FCP in the desired direction. Each click of the wheel results in 0.5 degrees of pitch attitude
change.
NOTE
All flight director vertical modes reset to PTCH mode when the
VS/pitch wheel is rotated, except if vertical speed (VS) or glideslope
capture (GS) modes are active. VS/pitch wheel rotation has no effect
after glideslope capture.
The pilot may also adjust the pitch reference to a desired pitch angle by pushing the FD SYNC
button and manually setting a pitch angle between +20 to –10 degrees. If the pilot selects a
pitch angle greater than the maximum limits, the FD will generate commands to return the pitch
angle to within limit upon release of the FD SYNC button.
Pitch mode is automatically cleared by selection or capture of another vertical mode.
Pitch Mode
Figure 04−10−28
Altitude Preselect Mode
The altitude preselect mode (ALTS) causes the flight director to generate commands to capture
and level off at the preselected altitude. It is comprised of armed, capture and track states.
Altitude preselect mode commands are based on the coupled side barometric altimeter.
The preselected altitude is set by the ALT knob on the FCP, and is displayed as a magenta
digital readout on the top right corner of the PFDs, and by a magenta altitude (double-bar) bug
on the barometric altimeters.
The ALTS mode is automatically armed upon selection of any vertical mode, except altitude
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庞巴迪挑战者604操作手册 Operating Manual 3(44)
