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Learjet 60 - Electronic Flight Instrument System

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Learjet
6U
Pilot's
Manual
ELECTRONIC
FLIGHT
INSTRUMENTSYSTEM
The
electronic
flight
instrument
system
is
a
Collins
4-tube
IDS-85o
in-
strument
display
system
with
a
single
sensor
display
unit
.
The
system
consists
of
a
primary
flight
display
(PFD)
and
a
multifunction display
(MFD)
on
each
pilot's
instrument
panel,
one
sensor display
unit
(SDU),
one
course
and
heading
panel
(CHP),
two
EFIS
Control
panels
(ECP),
and
two
Control Display
Units
(CDU)
.
When
equipped
with
the
Uni-
versal
Avionics
System
Corporation
(UASC)
FMS, two
EFIS
Radar
Pan-
els
(ERP)
are installed
.
Cooling
for
the
PFDs
and
MFDs
is
provided
by
fins
integral
to
each
display
unit
and
an
avionics
cooling fan
.
Failure
of
the
avionics
cooling fan
is
indicated
by
illumination
of
the
white
INSTR
FAN
annunciator
on
the
glareshield
annunciator
panel
.
The
system
is
powered
by
28
VDC
from
the
following
circuit
breakers
:
10-amp
PFD
1
&
2,10-amp
MFD
1
&
2,3-amp
SDU
PWR
1
&
2,5-amp
EFIS
CTL
1
&
2,
and
3-amp
CDU-AAP
1
&
2
.
On
the
UASC
configuration,
the
3-amp
CDU-AAP
1
&
2
circuit
breakers
are
replaced
by
W
00-amp
ERP-AAP
1
&
2
circuit
breakers
.
The
EFIS
is
used
to
display
airplane
altitude,
airspeed/Mach,
vertical
speed,
air
temperature,
attitude data,
navigational
data,
flight
director
commands,
mode
annunciators,
weather,
checklists,
warnings,
and
di-
agnostic
messages
.
The
EFIS
Radar
Panels
(ERP)
enable the
UASC
FMSes
to
function
as
an
external
navigator
to
the
Collins
Pro
Line
4
Avionics
System
.
The
ERP
controls
weather
radar
as
well
as
certain
Collins
MFD
displays
and
are
installed
below
the
UASC
FMS
CDUs
.
The
following
description
covers
the
system
in
a
general
manner
and
is
intended
for
familiarization
only
.
Refer
to
"Collins
Pro
Line
4
Avionics
System
For
The
Learjet
60"
(P/N
523-0777003),
the
Learjet
60
FAA
Ap-
proved
Airplane
Flight
Manual
(FM-123)
and
UASC
Operator's
Manu-
al
(if
applicable)
for
additional
operational
information
and
a
complete
description of the
EFIS
interfaces
and
instruments
.
PM-123
5-35
Change
4

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