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SYSTEM CONTROL AND INDICATING
SIDE STICKS
The side sticks, one on each lateral console, are used
for manual pitch and roll control. They control the
surfaces through the flight control computers.
The handgrip includes two pushbuttons, one used for
autopilot disconnection or side stick priority and the
other one for the radio.
For some maintenance procedures, it is necessary to
lock the side sticks with a pin in pitch and roll
neutral position.
SPEED BRAKE LEVER
The speed brake lever controls the position of the
speed brake surfaces and the manual preselection of
the ground spoilers.
To select a required position of the speed brake
surface, the lever has to be pushed down and placed
in the required position.
A "hard point" is provided at 1/2 speed brake position.
To arm the ground spoilers the lever must be pulled
up when in RETRACTED position.
THS MECHANICAL CONTROL
Both pitch trim wheels provide mechanical control of
the THS and have priority over electrical control. The
THS mechanical control must be used when the automatic
pitch trim is not available.
Trim position is indicated in degrees on a scale
adjacent to each trim wheel. Following nose wheel touch
down, pitch trim wheels return automatically to 0°, as
the pitch attitude becomes less than 2.5°.
RUDDER PEDALS
Two sets of pedals enable the rudder mechanical
control.
These pedals have individual adjustment devices so
that the pilots can set them to their personal
settings.
SLAT/FLAP CONTROL LEVER
The lever is connected to the command sensor unit which
translates the mechanical demand into electrical
signals for the Slat Flap Control Computers.
The FLAPS lever selects simultaneous operation of slats
and flaps and the collar must be lifted before
selection of any position. The five lever positions
correspond to the following surface positions (see
table).
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SYSTEM CONTROL AND INDICATING
RUDDER TRIM
The rudder trim order is transmitted to the trim
actuator through the Flight Augmentation Computers.
1 - Rudder trim reset pushbutton switch (Resets the
trim position to zero).
2 - Rudder trim control switch (Controls the rudder
trim actuator which moves the neutral point of the
artificial feel).
3 - Rudder trim indicator (Displays rudder trim
direction L or R and value 0º to 20º).
FLIGHT CONTROL PANELS
The computer pushbuttons serve to energize,
de-energize and reset the Elevator and Aileron
Computers(ELACs), the Spoiler Elevator Computers
(SECs) and the Flight Augmentation Computers (FACs).
OFF : In white, when the corresponding computer is
switched off.
FAULT : Comes on amber, accompanied by an ECAM caution
activation, when a failure is detected. The
FAULT light goes off when OFF is selected.
The side stick priority lights indicate the loss of
priority and the taking of priority in front of the
pilots.
When both side sticks are activated, without any
actions on the priority switch, both the CAPT and F/O
green lights come on.
The red arrow light comes on in front of the pilot
losing priority.
CAPT or F/O green light, comes on in front of the pilot
taking priority if the deactivated side stick is not
at neutral.
ECAM PAGES
The flight control system uses three ECAM pages, the
flight control ECAM page and the wheel ECAM page for
the primary surface indication, and the engine warning
display for the slat and flap indications.
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