TB20 MAINTENANCE MANUAL 22 AUTO FLIGHT TB20飞机维护手册 22 自动飞行(8)

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DESCRIPTION AND OPERATION
1. GENERAL (Figures 1, lA and 1B)
The optional autopilot system is of the "3—axis" type, it controls the aircraft roll, pitch and pitch trim.
The autopilot system consists of :
— the flight computer,
— the roll servo—actuator,
— the pitch servo—actuator,
— the pitch trim servo—actuator,
— the control push—buttons located on the pilot control wheel,
— the "TRIM MASTER" switch located on the selection panel of the L.H. instrument panel strip.
The autopilot system also uses :
— the artificial horizon (roll and pitch information),
— the navigation system (VOR / ILS),
— the heading reference system. The heading reference system can be either a directional gyro or a slaved heading system.
The slaved heading system consists of :
— a slaving amplifier,
— a flux valve,
— an HSI,
— a GYRO MODES selector of the selection panel.
The flight computer receives the static pressure.
The autopilot system is electrically supplied by "BUS 1" and "BUS 3" bars.
ACAC
Validity : CENTURY 31 22-11-00 (AM) Page 1
DEC 99

 
SERVOMOTEUR COMPENSATEUR
DE PROFONDEUR
PITCH TRIM SERVO
ACTUATOR
PRESSION STATIQUE
STATIC PRESSURE
 1, "A / P
DISCONNECT"
L "CWS"
F BOUTON POUSSOIR PUSH - BUTTON
"DN" TRIM ELECTRIQUE MANUEL
MANUAL ELECTRICAL "UP" PITCH TRIM
 
SYSTEME DE CAP
HEADING REFERENCE
SYSTEM
 
w 0 = 0
0 a w 0_ < cc 0
SYSTEME DE NAVIGATION
NAVIGATION SYSTEM
 
VOLANT PILOTE
PILOT CONTROL WHEEL
 
Autopilot - Electrical schematic
Figure 1 - With directional gyro
ACAC
Validity : CENTURY 31 22-11-00 (AM) Page 2
DEC 99
 

SERVOMOTEUR DE ROULIS
ROLL SERVO ACTUATOR SERVOMOTEUR
DE PROFONDEUR
PITCH SERVO ACTUATOR

SELECTEUR DE MODES
GYRO MODES SELECTOR
 
SERVOMOTEUR COMPENSATEUR
DE PROFONDEUR
PITCH TRIM SERVO
ACTUATOR
PRESSION STATIQUE
STATIC PRESSURE
 1, "A / P
DISCONNECT"
"CWS"
BOUTON POUSSOIR
PUSH - BUTTON
"ON" TRIM ELECTRIQUE
h)
 MANUEL MANUAL ELECTRICAL "UP" PITCH TRIM
VOLANT PILOTE
PILOT CONTROL WHEEL
SYSTEME DE NAVIGATION NAVIGATION SYSTEM
 
"FREE"
 

 
FILTRE SI INSTALLE
FILTER IF INSTALLED
VANNE DE FLUX
FLUX VALVE AMPLICATEUR
D'ASSERVISSEMENT
　
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