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MECHANICS / ELECTRICS & AVIONICS COURSE 27 FLIGHT CONTROLS
UF94200
EFFECTIVITY Page 154
ALL
27 - FLIGHT CONTROLS
27-23-00 RUDDER LIMITER OPERATION
CONTENTS:
Low Speed Configuration
Variable Limitation
High Speed Configuration
Flight Augmentation Computer Failure
Self examination
TMUFCLO01 LEVEL 3
EFFECTIVITY 27-23-00 Page 1
Jun 30/99
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 27 FLIGHT CONTROLS
UF94200
EFFECTIVITY Page 155
ALL
RUDDER LIMITER OPERATION
LOW SPEED CONFIGURATION
Under 160 Knots the stops are in low speed
configuration.
Full input/output lever movement to the rudder servo
control is available.
VARIABLE LIMITATION
Between 160 and 380 kts the rudder deflection is
limited as a function of a speed.
The corresponding law is computed by the Flight
Augmentation Computers (FACs).
HIGH SPEED CONFIGURATION
Above 380 knots the stops are in high speed
configuration.
Only limited input/output lever movement to the rudder
servo control is available.
TMUFCLO01-T01 LEVEL 3
EFFECTIVITY 27-23-00 Page 2
Jun 30/99
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 27 FLIGHT CONTROLS
UF94200
EFFECTIVITY Page 156
ALL
TMUFCLO01-P01 LEVEL 3
RUDDER LIMITER OPERATION
EFFECTIVITY 27-23-00 Page 3
Jun 30/99
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 27 FLIGHT CONTROLS
UF94200
EFFECTIVITY Page 157
ALL
RUDDER LIMITER OPERATION
FLIGHT AUGMENTATION COMPUTER (FAC) FAILURE
If both FACs fail, the rudder travel limitation value
is frozen immediately.
In this case, the stops return to the low speed
configuration when the slats are extended.
Thus, the pilot has the full rudder deflection
available.
TMUFCLO01-T02 LEVEL 3
EFFECTIVITY 27-23-00 Page 4
Jun 30/99
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 27 FLIGHT CONTROLS
UF94200
EFFECTIVITY Page 158
ALL
RUDDER LIMITER OPERATION - FAC FAILURE
TMUFCLO01-P02 LEVEL 3
EFFECTIVITY 27-23-00 Page 5
Jun 30/99
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 27 FLIGHT CONTROLS
UF94200
EFFECTIVITY Page 159
ALL
SELF EXAMINATION
What happens if a double FAC failure occurs ?
A - The stops stay in high speed
configuration.
B - The stops stay where they were at the
moment of the failure.
C - The stops return to the low speed
configuration when the slats are
extended.
TMUFCLO01 LEVEL 3
EFFECTIVITY 27-23-00 Page 6
Jun 30/99
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 27 FLIGHT CONTROLS
UF94200
EFFECTIVITY Page 160
ALL
27 - FLIGHT CONTROLS
27-26-00 YAW DAMPER SERVO ACTUATOR
OPERATION
CONTENTS:
Active Mode
Monitoring
Bypass Mode (Both SV De-energized)
Bypass Mode (One SV De-energized only)
Bypass Mode (Hydraulic failure)
Self Examination
TMUFCLN01 LEVEL 3
EFFECTIVITY 27-26-00 Page 1
Jul 31/00
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 27 FLIGHT CONTROLS
UF94200
EFFECTIVITY Page 161
ALL
YAW DAMPER SERVO ACTUATOR OPERATION
ACTIVE MODE
The actuator is in active mode when both solenoid
valves are energized and hydraulic pressure servo valve
is available. The two selector valves are connected
to the servovalve outputs and allow the servo actuator
to operate in active mode.
In this case the pressure switch is not activated.
The feedback transducer (LVDT type) provides the
servoloop feedback information to the FACs.
FAC 1 controls and monitors the green servo actuator
and FAC 2 the yellow one.
MONITORING
A pressure switch fitted to the servo actuator detects
any different position between the selector valves.
TMUFCLN01-T01 LEVEL 3
EFFECTIVITY 27-26-00 Page 2
Jul 31/00
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 27 FLIGHT CONTROLS
UF94200
EFFECTIVITY Page 162
ALL
YAW DAMPER SERVO ACTUATOR OPERATION - ACTIVE MODE
TMUFCLN01-P01 LEVEL 3
EFFECTIVITY 27-26-00 Page 3
Jul 31/00
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 27 FLIGHT CONTROLS
UF94200
EFFECTIVITY Page 163
ALL
YAW DAMPER SERVO ACTUATOR OPERATION
　
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