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ISA +15°C
40
102
835
100.1
V
vtf faf
LOC HDG AP YD VS 900FPM ASEL
013° CHITO DIS 7.1NM BRG 034°
-900
-900
Figure 7-19. EICAS Reversionary Display
on PFD
EXCEEDANCE LEVEL
EXCEEDANCE
REGION
MAJOR GRADUATION
SLIDER (SAFE REGION)
SLIDER (IN EXCEEDANCE)
EXCEEDANCE REGION
POINTER (SAFE REGION)
POINTER (IN EXCEEDANCE)
NORMAL REGION
EXCEEDANCE REGION
MINOR GRADUATION
Figure 7-20. EICAS Analog Markings
N1%
OIL
FUEL
LBS
PPH
°C
1500
1000
500
N2%
DC
BATTERY
CABIN PRESS
TRIM
AILERON
RUDDER
FLAPS
CAS
UP
TO/APR
LAND
X1000
+1
ALT FT RATE FPM
DEST ELV
DIFF PSI
0 5 10
VOLTS
AMPS
VOLTS AMPS
PSI °C
ITT°C
100
90
80
200
500
600
700
800
900
50
20
0
0 -1
5
10
15
Figure 7-21. EICAS Display—Invalid Data
CITATION MUSTANG OPERATING MANUAL
7-16 510OM-00
NOTE
A red “X” on an EICAS indication
does not mean that the indicated value
is zero or is exceeding normal levels.
It only indicates that the EICAS cannot
determine the correct value to
display, and that the EICAS indication
is inoperative. Red lines on some
scales, indicating maximum allowable
limits, may not appear. This does
not mean there is no limit for that item.
It means the EICAS cannot determine
what the appropriate red line value is.
In addition to powerplant status indications, the
EICAS provides information on most other aircraft
systems. For details on those indications,
refer to Chapter 4—“Master Warning System.”
EICAS powerplant indications include:
• N1 % rpm and thrust mode*
• SYNC indications
• ITT and ignition indications*
• N2 % rpm*
• Oil pressure (psi) and temperature (°C)
• Crew alerting system (CAS) messages
* If normal DC power fails, these items are
powered from the permanent magnet alternator
(PMA) and remain visible on the EICAS.
N1% WINDOW
For each engine, the N1% window of the
EICAS (Figure 7-22) indicates:
• N1% rpm
• N1% target bug
• Thrust mode
• Engine SYNC
The N1% window is powered by normal or
emergency DC power. It is always visible
and operating when any DC power is active
in the aircraft. All N1% window indications
remain valid when the aircraft is on emergency
DC power.
N1% RPM
The N1% scale indicates the rotation speed of
the N1 spool and is calibrated in percent of
maximum N1 rpm (as determined by FADEC).
It is the primary indication of engine thrust.
When in acceptable range, the analog tapes are
white and the digits are green. When outside
acceptable range, both tapes and digits are
red. When N1 is below 20% of maximum, the
digits are displayed and the tape display does
not indicate below 20% N1. A red line indicating
maximum rpm limit (as determined by
FADEC) is at 100% rpm on each scale.
N1% Target Bug
N1% target rpm, as calculated by FADEC for
the selected thrust mode, is indicated by cyan
digits in a box centered at the top of the N1
scales, and by a cyan marker (“bug”) on the
outboard side of each N1 scale (Table 7-1).
Thrust Mode
Thrust-mode indications appear in cyan at the
top of each N1 scale. These indications correspond
to the throttle settings currently
selected by the pilot. If the pilot selects a setting
between detents, the thrust mode
indications do not appear.
CRU CRU 89.5
46.2
N1%
100
90
80
50
20
100.1 SYNC
THRUST MODE
INDICATOR
N1% TARGET (DIGITAL)
N1% RED LINE
N1% TARGET (ANALOG)
N1% (ANALOG)
N1% SYNC INDICATOR
N1% (DIGITAL)
Figure 7-22. N1% Window
CITATION MUSTANG OPERATING MANUAL
510OM-00 7-17
In normal display mode, these indications are
in the upper-left corner of the MFD. In reversionary
mode, they are presented at the top of
the reversionary EICAS display on the pilot
and/or copilot PFD.
Engine SYNC
At the bottom-center of the N1% display, the
label “SYNC” appears in green letters when
the engines are synchronized in flight by the
FADEC, when ENGINE SYNC—NORM is
selected by the pilot.
ITT AND IGNITION WINDOW
　
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