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inertial reference system (IRS). Flight instruments provide the following basic information to
the flight crew: <1025>
S Altitude (barometric/radio)
S True Airspeed
S Airspeed (MACH/KIAS)
S Temperature Data
S Airspeed Trend
S Airplane Attitude
S Vertical Speed
S Heading Information
S Overspeed Warning
S Navigation Information
Electronic flight instruments consists of a primary flight display (PFD) and a multifunctional
display (MFD) for each pilot. An integrated standby instrument (ISI) provides standby
attitude, altitude and airspeed information to the flight crew. An independent standby
compass provides aircraft heading in relation to magnetic north. A electronic clock provides
the time source for the aircraft avionics equipment.
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. <1025>
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Electronic Flight Instrument System REV 3, May 03/05
Flight Crew Operating Manual
CSP C--013--067
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 has the primary function of pictorially showing aircraft attitude, altitude, airspeed,
flight director commands and flight mode annunciations.
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.
EFIS --- General <1015>
Figure 12---20---1
Pilot’s Instrument Panel
Multifunction Display
Primary Flight Display
Copilot’s Instrument Panel
10
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10
10
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Electronic Flight Instrument System REV 3, May 03/05
Flight Crew Operating Manual
CSP C--013--067
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 primary flight display (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.
NOTE
The MFD information cannot be transferred to the
PFD.
Selecting the EICAS position, on the reversionary panel, 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.
Display Selection
Figure 12---20---2
Pilot’s Display Reversionary Panel
Pilot’s Side Panel
Copilot’s Display Reversionary Panel
Copilot’s Side Panel
Vol. 1 12--20--3
FLIGHT INSTRUMENTS
Electronic Flight Instrument System Sep 09/02
Flight Crew Operating Manual
CSP C--013--067
Primary Flight Display and Multifunction Display <1015>
Figure 12---20---3
Horizontal Situation
Indicator (HSI)
Barometric Altitude
Airspeed Indicator (IAS)
Navigation Source
/ Course Display
Flight Director / Autopilot
Mode Annunciator
Attitude Director
Indicator (ADI)
Vertical Speed Indicator
Radar Mode Line
Time / Temperature /
Performance Line
Onside Course Display
Cross--Side Course Display
Bearing Pointer
Lateral Deviation Scale
Vertical Deviation Scale
Selected Heading Display
Course Pointer
Lateral Deviation Bar
Airplane Symbol
Bearing Pointer Source
Bearing Pointer Source
Multifunction Display -- HSI Mode
Pilot’s and Copilot’s Instrument Panels
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