HAWKER 800 XP
PILOT TRAINING MANUAL
FlightSafety
international
position indicator is provided in the center in-
strument panel.
A rudder bias system is powered by engine
bleed air. This system automatically applies
opposite rudder to counteract the effect of
asymmetric thrust resulting from a single-en-
gine failure.
A stall warning (stick shake) and stall identifi-
cation system (stick push) is provided.
Internal gust locks are provided to lock the con-
trol surfaces when the aircraft is parked or
moored. The gust locks are rated for gusts of up
to 80 knots.
PRIMARY CONTROLS
AILERON CONTROL SYSTEM
Movement of the ram’s-horn type handwheel
on either control column operates the ailerons.
Each handwheel operates a lever at the bottom
of the column through chains and cables. A
connecting rod interconnects the levers of
each column. The left column lever is also
connected to a pulley drum. From the pulley
drum a combination of cables and tie-rods op-
erate a differential pulley in each wing. This
pulley is connected to the aileron by the levers
and links (Figure 15-1).
Each aileron control surface is fitted with a
mass balance weight to prevent flutter and a
horn balance to reduce the aerodynamic loads
felt by the pilot.
Primary stops are located at the left and right
aileron inboard hinges to limit the upward
range of movement. Secondary stops are lo-
cated at the bottom of each control column.
Aileron Geared and Trim Tabs
Each aileron has a servo-action geared tab
mounted on its trailing edge (Figure 15-2).
The tab is connected to the aileron by twin
connecting rods, and moves in the opposite
sense to the aileron lightening the aerody-
namic loads on the pilot’s handwheel.
The connecting rods for the left aileron tabs
are connected to a manually operated trim ac-
tuator. The trim actuator is connected by a
cable system to a trim handwheel mounted on
the center pedestal in the flight compartment.
Aileron Out-of-Trim Warning
A warning of the aileron being out of trim for
takeoff is given by the ELEV/AIL TRIM an-
nunciator illuminating (on the main MWS
panel) if the following conditions apply:
• Aircraft weight is on wheels.
• Both engine thrust levers are advanced
to more than 40–60% N
1
power.
Revision 1
15-3
FOR TRAINING PURPOSES ONLY
Figure 15-2. Aileron Geared Tab
Servo-Action
ELEV/AIL
TRIM
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