Page 2-15
Pilot’s Operating Manual
Revision A1: Nov, 2002
Sub-section 2
ENGINES
Hawker 800XP Pro Line 21
Section III - SYSTEMS DESCRIPTION
OIL TEMPERATURE DISPLAYS
Oil temperature for each engine appears below oil pressure for each engine in the top right corner of
the MFD. The oil temperature display is a digital read-out for each engine with a gray TEMP legend,
placed below the gray OIL legend. Range is 0 to 150
°
C.
The oil temperature digital read-out is green when the temperature is within the normal limits, yellow
when within the transient limits and red when in the redline.
A single oil temperature sensor from each engine interfaces with its on-side Data Concentrator Unit.
Three yellow dashes are displayed if oil temperature data from all sources is flagged or missing.
ENGINE FIRE WARNING ANNUNCIATIONS
A fire annunciation displays when the Data Concentrator Unit receives a signal indicating an engine fire
condition exists.
The red FIRE legend appears in the lower center of the applicable N
1
/ITT scale. The FIRE legend
flashes for 5 seconds when first displayed, then remains steady. The FIRE legend will display for at least
5 seconds.
CLIMB ANNUNCIATION
Maximum Climb Thrust is set by adjusting the thrust levers until the green CLIMB annunciation appears
at the lower center of the N
1
/ITT scales. CLIMB shares the display location with the FIRE annunciation;
the FIRE annunciation takes priority over CLIMB.
AUTOMATIC POWER RESERVE (APR) DISPLAYS
An APR ARM or active annunciation appears when the Data Concentrator Unit receives a signal
indicating automatic power reserve APR - ARM or active condition exists. A white APR ARM legend
appears in the lower center between the left and right N
1
/ITT scales.
APR appears above the ARM legend and will appear at any time except when the APR active
annunciation is displayed. The APR active annunciation consists of a green boxed APR legend in the
same location as the APR ARM annunciation. The box and APR legend flash for 5 seconds when first
displayed, then remain steady.
Control for the automatic power reserve is via an APR ARM and APR OVRD switch on the center
instrument panel.
OPERATING
CONDITION
NORMAL LIMIT
(Green)
TRANSIENT LIMIT
(Yellow)
REDLINE LIMIT
(Red)
Altitude
≤
30,000 ft
or
Altitude Invalid
0
°
C
≤
OT
≤
127
°
C
128
°
C
≤
OT
≤
149
°
C
for less than 2 minutes
128
°
C
≤
OT
≤
149
°
C
for 2 minutes or longer
or
OT
≥
150
°
C
Altitude
>
30,000 ft
0
°
C
≤
OT
≤
140
°
C
141
°
C
≤
OT
≤
149
°
C
for less than 2 minutes
141
°
C
≤
OT
≤
149
°
C
for 2 minutes or longer
or
OT
≥
150
°
C
