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CONTROLS AND INDICATORS (CONT'D)
Display Control Panel
Figure 11−10−9
Air Data Reference Panel
The air data reference panel (ADRP) is used to set speed, altitude and barometric pressure
values, which are then sent to the EFIS for display. The two ADRPs are installed on the center
pedestal. Each panel has three rotary knobs with inset pushbutton switches. The panel is divided
into three sections: the speed reference section, the altitude reference section and the barometric
pressure section.
• The speed reference section is used to make changes to airspeed references (V1, VR, V2
and VT)
• The altitude reference section is used to control the minimum descent altitude (MDA) and
decision height (DH) display on the EFIS. It also incorporates a test switch for the radio
altimeter (RA)
• The barometric pressure section is used to make changes to the ADC barometric
correction function
Speed Reference Section
To manually change the speeds posted on the V-speed table, turn the TGT/VSPDS outer knob
to either TGT (VT), or VSPDS (V1, VR and V2). Rotate the SET (inner) knob to change the speed
values. In the VSPDS position, the reference speeds can be alternately edited by pushing the
SEL button and rotating the SET knob. The SET switch (inner knob) enables/disables the PFD
display of the selected target or reference airspeed. These speeds are displayed below the IAS
scale on the PFD and are located on the speed tape in their respective positions (V1, VR, V2 and
VT).
Manually entered V-speeds will be displayed in cyan. For Precision-Plus-equipped aircraft,
V-speeds can be computed and entered via the FMS, where they will be displayed in cyan.
Manually entered V-speeds in Precision-Plus-equipped aircraft are displayed in magenta.
FLIGHT INSTRUMENTS
Description
Vol. 2 11−10−15
REV 66, Feb 01/07
CL−604 Operating Manual
PSP 604−6
CONTROLS AND INDICATORS (CONT'D)
Altitude Reference Section
To change the altitude value displayed for either the minimum descent altitude (MDA) or the
decision height (DH), rotate the DH/MDA (outer) knob to select the altitude to be amended. The
SET (inner knob) switch is rotated to change the values. These altitudes are displayed on the
PFD below the altitude scale. The SET switch is pushed to enable or disable the display of
either the DH or the MDA.
The radio altimeter (RA) test switch is depressed to conduct an internal test on the radio
altimeter. The RA value on the bottom of the attitude direction indicator will change to 50 feet
and the rising runway symbology, located on the radio altimeter analog scale, moves down 50
feet.
Barometric Pressure Section
The barometric (BARO) knob changes the barometric pressure. Pushing the STD switch selects
standard barometric pressure (29.92 inches of mercury, or 1,013 hectopascals). The value is
displayed below the PFD altitude scale. The HPA/IN switch alternately selects barometric
pressure correction in hectopascals (hPa), or inches of mercury (inHg).
Air Data Reference Panel
Figure 11−10−10
PFD Displays
Attitude Display
The attitude symbology provides pitch, roll and slip/skid information. IRS information is used to
drive the attitude symbology. An inverted black V-bar airplane symbol denotes the aircraft’s
relative attitude on the attitude director indicator (ADI).
Large-scale markings are placed at 10, 20, 30, 40, 50, and 65 degrees of pitch. Medium
marking are placed at 5-degree intervals up to ±30 degrees. Small tick marks are placed at
2.5-degree intervals up to ±20 degrees.
FLIGHT INSTRUMENTS
Description
Vol. 2 11−10−16
REV 66, Feb 01/07
CL−604 Operating Manual
PSP 604−6
CONTROLS AND INDICATORS (CONT'D)
Roll scale markings are used to indicate airplane roll angles between ±60 degrees. The roll
pointer is used with the roll scale to indicate the airplane roll angle. The pointer is oriented
perpendicular to the horizon line and next to the roll scale to represent degrees of roll (bank)
angle. The roll pointer rotates about the center of the airplane symbol in response to changes in
airplane roll angle.
Slip/Skid indicator
The slip/skid indicator is located just below the roll pointer and approximates the displacement
of an inclinometer. The indicator is a small rectangular symbol. The slip/skid indicator is driven
by lateral accelerations.
Unusual Attitude Display
If the airplane is flown into an unusual attitude, all non-necessary indications are removed.
Unusual attitudes occur when pitch exceeds +30 degrees (up), or −20 degrees (down), or when
　
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