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CSP A--013
Air data provided by a pitot-static system and a temperature probe provide the flight
instruments with speed, altitude and temperature data. The radio altimeter provides an
accurate measurement of height above terrain at low altitudes. The inertial reference
system (IRS) provides attitude, heading, position, angular rate and linear acceleration
information. <0025>
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FLIGHT INSTRUMENTS
Electronic Flight Instrument System
Flight Crew Operating Manual
CSP A--013
MASTER
1. ELECTRONIC FLIGHT INSTRUMENT SYSTEM
All basic flight information is presented to the flight crew on Electronic Flight Instrument
System (EFIS) displays. Each pilot instrument panel contains a primary flight display (PFD)
and a multifunctional display (MFD). All four displays are electronically identical to permit
transfer of display data.
Each PFD is a digital CRT and has the primary function of pictorially showing aircraft
attitude, altitude, airspeed, flight director commands and flight mode annunciations. Inputs
to the PFD’s are from the selected AHRS and ADC’s. Commands are set on the flight
control panel, air data reference panel and display control panels.
Each PFD is a digital CRT and has the primary function of pictorially showing aircraft
attitude, altitude, airspeed, flight director commands and flight mode annunciations. Inputs
to the PFD’s are from the selected IRS and ADC’s. Commands are set on the flight control
panel, air data reference panel and display control panels.<0025>
The PFD’s function as the following instruments:
S Attitude heading indicator (ADI)
S Horizontal situation indicator (HSI)
S Radio magnetic indicator (RMI)
S Radio altimeter indicator
S Airspeed indicator (Mach and IAS)
S Vertical speed indicator (VSI).
Each of the MFDs acts as a navigation system display and has a primary function of
showing current heading (compass) and course information. The MFDs can also display
moving map navigation pictorials, navigation sensor data, weather radar targets, and TCAS
traffic (see Chapter 18). Cross side compass information and backup navigation information
can be superimposed on either display. EICAS information can also be displayed on either
MFD.
A. Display Reversion
Two display reversionary panels are installed in the flight compartment. One panel is
installed on the pilot’s side panel and the other panel is installed on the copilot’s side
panel. In the event of a PFD failure, all data normally displayed on it can be transferred
to the adjacent MFD by turning the display selector knob on the respective
reversionary panel to the PFD position. The MFD information cannot be transferred to
the PFD. Selecting the EICAS position will initially display the EICAS status page on
the respective MFD. All the other EICAS pages are available for display on the MFD,
through selections on the EICAS control panel.
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FLIGHT INSTRUMENTS
Electronic Flight Instrument System
Flight Crew Operating Manual MASTER
CSP A--013
<0015>
<0083>
<0015> <0015>
EICAS Displays
Multifunction Display (MFD)
Primary Flight Display (PFD)
Multifunction Display (MFD)
Primary Flight Display (PFD)
MLG BAY OVHT
DISPLAY COOL
Standby Airspeed/
Altitude/Attitude
Indicator
Standby
Altimeter/Indicated
Airspeed Indicator
Standby Attitude
Indicator
MLG BAY OVHT
DISPLAY COOL
Electronic Flight Instrument System (EFIS) <MST>
Figure 12--20--1
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FLIGHT INSTRUMENTS
Electronic Flight Instrument System
Flight Crew Operating Manual
CSP A--013
MASTER
EFIS Interface --- Block Schematic <MST>
Figure 12---20---2
CRSI AP AP XFR SPEED APPR HDG NAV ALT VS DOWN CRS2
PFD 1 MFD 1 MFD 2 PFD 2
<0025> <0025>
<0040> <0040>
MACH,
AIRSPEED,
VERTICAL
SPEED.
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FLIGHT INSTRUMENTS
Electronic Flight Instrument System
Flight Crew Operating Manual MASTER
CSP A--013
Display Selection
Figure 12---20---3
Pilot’s Display Reversionary Panel
Pilot’s Side Panel
Copilot’s Display Reversionary Panel
Copilot’s Side Panel
Used to change the pilot or copilot MFD display.
PFD 1 or 2 -- MFD changes to a PFD
display and PFD display goes blank.
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FLIGHT INSTRUMENTS
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