Page 2-2
Pilot’s Operating Manual
Original Issue: Feb, 2002
Sub-section 2
ENGINES
Hawker 800XP Pro Line 21
Section III - SYSTEMS DESCRIPTION
Page
IGNITION ................................................................................................... 2-22
Ignition Unit ......................................................................................... 2-22
Igniter Plugs and Leads ...................................................................... 2-22
Ignition Switches ................................................................................. 2-22
FUEL CONTROL ....................................................................................... 2-23
Fuel Pump........................................................................................... 2-23
Anti-ice Valve................................................................................... 2-25
Filter Bypass.................................................................................... 2-25
Figure 5 - Engine-Driven Fuel Pump Assembly..................................... 2-24
Filter Clogged .................................................................................. 2-25
Fuel Control Unit ................................................................................. 2-25
Inlet Pressure and Temperature Sensor.......................................... 2-25
Digital Electronic Engine Control (Fuel Computer).......................... 2-26
Figure 6 - DEEC - Engine Interface ....................................................... 2-27
Surge Bleed Valve ........................................................................... 2-28
Fuel Flow Divider Assembly ............................................................ 2-28
Fuel Atomizers................................................................................. 2-28
Fuel Heating .................................................................................... 2-28
Fuel Flow Indicating......................................................................... 2-29
Additional Fuel System Components .............................................. 2-29
POWER CONTROLS ................................................................................ 2-30
Engine Thrust Levers .......................................................................... 2-30
Audible Warnings and Interlocks......................................................... 2-30
High Pressure (HP) Fuel Cock Levers ................................................ 2-30
Figure 7 - Fuel Controls ......................................................................... 2-31
Engine Synchronizer........................................................................... 2-32
Power Supply................................................................................... 2-32
BLEED AIR and VENTILATION .................................................................. 2-33
Figure 8 - Engine Bleed Air and Ventilation ........................................... 2-33
ANTI-ICING ............................................................................................... 2-33
Figure 9 - Engine Anti-icing System ...................................................... 2-34
Power Supplies ................................................................................... 2-35
AIRPLANE SERVICES .............................................................................. 2-36
AUTOMATIC PERFORMANCE RESERVE (APR)...................................... 2-36
CONTROLS ............................................................................................... 2-36
Figure 10 - APR System ........................................................................ 2-37
OPERATION .............................................................................................. 2-38
Automatic Mode .................................................................................. 2-38
Manual Mode ...................................................................................... 2-38
Failure Modes ..................................................................................... 2-38
