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(magenta characters) by the FMS.
V-Speeds Setting
Control of the V-speeds within the menu is achieved using the focus indicator and the standard
menu controls on the DCP (MENU ADV/DATA knob and PUSH SELECT knob).
Each of the reference speed values can be selected either on or off. When selected to on, the
associated reference value is displayed on the airspeed tape. Toggling the reference value
between on and off is achieved by first highlighting the desired control using the focus
indicator, and then pressing the PUSH SELECT button. Each press of this button toggles the
reference value back and forth between on and off. As V-speeds are toggled on, the focus
indicator moves forward to the next selectable V-speed.
The following selectable V-speed REFS are identified as:
V1
The reference marker is a cyan line followed by a 1. The V1 marker is the takeoff decision
speed reference. The V1 marker is automatically removed at lift-off.
VR
The reference marker is a cyan line followed by an R. The VR marker is the rotation speed
reference. The marker is automatically removed after the V2 speed is exceeded.
V2
The reference marker is a cyan line followed by a 2. The V2 marker is the takeoff safety speed
reference. The marker is automatically removed after the V2 speed is exceeded (V2 + 40 knots
+ weight off wheels for 7 seconds).
VT
The reference marker is a cyan line followed by a T. The VT marker is the target speed
reference.
VREF
The reference marker is a cyan line followed by a REF. The VREF marker is the reference
approach speed (not presented in graphic).
VAC
The reference marker is a cyan line followed by an AC. The VAC marker is the approach climb
speed reference during a go-around (not presented in graphic).
FLIGHT INSTRUMENTS
Description
Vol. 2 11−10−18
Oct 05/06
CL−605 Flight Crew Operating Manual
PSP 605−6
AIR DATA SYSTEM INDICATIONS (CONT'D)
PFD REFs Speed Indications
Figure 11−10−18
FLIGHT INSTRUMENTS
Description
Vol. 2 11−10−19
Oct 05/06
CL−605 Flight Crew Operating Manual
PSP 605−6
AIR DATA SYSTEM INDICATIONS (CONT'D)
High-Speed/Flap Overspeed Cue
An overspeed cue is provided to indicate the maximum operating speed. It appears in the upper
portion of the airspeed scale, and is displayed as a solid red line.
An overspeed pre-alert occurs when the solid red line changes to an expanded alternating red and
black checkerboard band, and airspeed/Mach digital readout changes from green to yellow.
When the aircraft is operated near the top of its speed envelope, the cue indicates the airspeed at
which VMO/MMO will be exceeded. The overspeed clacker sounds if VMO/MMO is exceeded by
3 knots, and airspeed/Mach digital readout changes from yellow to red.
When the flaps are extended, the checkerboard cue is overlaid on the airspeed indicator. The
bottom of the cue represents the VFE speed for the existing flaps selection. The overspeed clacker
sounds if VFE is exceeded.
Low-Speed Cue
The low-speed cue is generated by angle-of-attack information from the auxiliary angle-of-attack
vane. It appears three seconds after lift-off, from the lower portion of the airspeed scale, and is
displayed as a solid red line.
A low-speed pre-alert occurs when the solid red line cue changes to an expanded alternating red
and black checkerboard band, and airspeed/Mach digital readout changes from green to yellow
(the aircraft is within a few knots of activating the stick shaker). In the landing configuration (gear
down, flaps 45), the top of the cue represents a calculated airspeed of 1.06 VS, the speed at which
the stick shaker will activate.
If current airspeed becomes less than the top of the low speed cue, the airspeed/Mach digital
readout changes color to red.
When AOA data fails or is missing (which may or may not be due to a stall system failure), the
low-speed cue changes to its default setting. The speed cue stops at 100 knots, and a yellow line
extends upwards from the top of the checkerboard to 120 knots. The intent of this defaulted failure
indication is to provide some remaining indication of low speed awareness, while indicating that
the low-speed cue is in a degraded and defaulted mode.
FLIGHT INSTRUMENTS
Description
Vol. 2 11−10−20
Oct 05/06
CL−605 Flight Crew Operating Manual
PSP 605−6
AIR DATA SYSTEM INDICATIONS (CONT'D)
Overspeed/Low-Speed Cues
Figure 11−10−19
Angle-of-Attack (AOA)
The AOA display is a vertical tape located immediately to the left of the airspeed tape. Like the
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庞巴迪挑战者605机组操作手册 CL605-FLIGHT_INSTRUMENTS(7)
