Hawker 800 XP, Pilot Training Manual

Page: 106 / 504

Digital avionic systems are installed for com-
munication, navigation, auto flight control
and flight management systems. A five-tube
electronic flight instrument system present
the crew with displays of flight data received
from other systems. Each turbofan engine is
controlled by a digital electronic engine con-
trol unit, backed up by a hydro-mechanical re-
versionary unit. Hydraulically-operated thrust
reversers are fitted.
A single hydraulic system pressurized by engine
driven pumps (one per engine) supplies pressure
for landing gear and doors, nosewheel steering,
wheel brakes, stall identification system, wing
flaps, airbrakes and thrust reverser functions.
Backup hydraulic supplies are provided to op-
erate the wheel brakes, stall identification, thrust
reversers, lowering landing gear, and retrac-
tion or lowering of the flaps.
The main electrical services are supplied with
28 VDC from a starter/generator per engine.
Emergency power is provided by batteries.
Where AC power is required, it is supplied by
either engine driven alternators (208 V three-
phase) or static inverters.
A fluid anti-icing system is installed along
the leading edge of the wings and horizontal
stabilizer. Hot air is used to keep the main en-
gine air intake free of ice. Electric heating is
provided for windshields, pitot heads, static
plates, stall vane, and rudder bias struts, plus
the engine intake temperature and pressure
sensors PT2 and TT2.
A gaseous breathable oxygen system is installed
for use by crew and passengers during emer-
gency conditions. The system also provides a
therapeutic supply.
Fire detection and protection systems are in-
stalled for the main engines and for the APU.
Overheat detection is provided for the rear
equipment bay.
Engine bleed air is tapped from the engines for
the pressurization, air conditioning and rudder
bias systems.
A gas-turbine APU is installed to provide DC
electrical power and air conditioning.
Leading particulars of the aircraft are presented
in Figure 1.1.
1-2
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HAWKER 800 XP PILOT TRAINING MANUAL
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