AUTOFLT SYS AFS Flashcards
AFS INCLUDES
FG
FLT GUIDANCE
FMS
FLT MGMT SYS
FE
FLT ENVELOPE
FCDC
FLT CONTROL DATA CONCENTRATOR
FG PROVIDES
LATERAL AND VERTICAL GUIDANCE
SPEED OR MACH CONTROL
IN ACCORDANCE WITH TARGETS
SEL BY FLT CREW
OR
MANAGED BY FMS
SELECTED TARGETS
FLT CREW SEL INPUT ON AFS CP
THESE INPUTS DIRECTLY TO FG FOR IMMEDIATE GUIDANCE RESPONSE
THIS IS CALLED SELECTED GUIDANCE
AFS CP IS SHORT TERM INTERFACE
MANAGED TARGETS
FLT CREW INSERTS THE FLT PLAN INTO MFD AHEAD OF TIME
FMS COMPUTES AND MANAGES THESE TARGETS FOR FG
THIS IS CALLED MANAGED GUIDANCE
MFD IS LONG TERM INTERFACE
LATERAL AND VERT GUIDANCE
EITHER SELECTED OR MANAGED INDEPENDENTLY OF EACH OTHER
HOWEVER MANAGED GUIDANCE NOT POSSIBLE WHEN SEL GUIDANCE USED
LATERAL SEL. MGD Selected. YES. YES VERTICAL Managed. NO. YES
VERT SPD
CAN ONLY BE SEL
FMS
PROVIDES LONG TERM GUIDANCE ALONG ACTIVE FLT PLAN
FE
USED BY FG AND FLT CONTROLS TO PREVENT THE AIRCRAFT FROM EXITING THE ENVELOPE
FCDC
DETERMINES THE AUTOLAND CAPABILITY FOR THE AFS
INTERFACES THE AP FD A/THR WITH FWS TO ALLOW ASSOC ALERTS TO BE TRIGGERED
GENERATES MAINT MSG FOR FG AND FE
FCDC ALSO PERFORMS FUNCTIONS FOR FLT CONTROLS
AFS ARCHITECTURE
3 PRIM
PRIMARY FLT CONTROL AND GUIDANCE COMP
2 FMS
FMS 1 and 2
EACH FMS OPERATED BY ONE OF 3 FMCS A,B,C
3 PRIMS CONTROL
FG ( AP FD A/THR)
FE
FLT CONTROLS
EACH PRIM CAN OPERATE
ONE OR BOTH AP
2 FD
A/THR
PRIM
MASTER AND SLAVE
ONE PRIM MASTER
2 SLAVES
MASTER PRIM
BEST OPERATIONAL CAPABILITY TAKING INTO ACCOUNT
MAN FLT CONTROL LAW CAPABILITY
FE AP AUTOLAND CAPABILITY
A/THR CAPABILITY
MASTER PRIM HAS PRIORITY TO OPERATE THE ENGAGED AP FD AND A/THR
IF ALL PRIMS HAVE SAME CAPABILITY PRIORITY PRIM 1,2,3
SLAVE PRIMS
SLAVE 1 and 2 PRIMS ARE IN STBY
READY TO CONTROL AP FD A/THR
MASTER PRIM LOST
IF MASTER PRIM LOSES BEST CAPABILITY
SLAVE 1 BECOMES MASTER PRIM
ALL ENGAGED AP FD A/THR TRANSFERRED
TWO OTHERS BECOME SLAVE 1,2
PRIM INTERFACES WITH
NAV AND POSN FLT CTLS LDG GEAR BRAKES STEERING FUEL AND WT ENGINES FMS AFS CP MFDS EWD PFDS THRUST LEVERS FWS SIDESTK DISCONNECT PB
FMS 1 and 2
FMS 1 CAPT SIDE FMC A
FMS 2 FO SIDE FMC B
FMC C STBY
AP1 FMC A MASTER B SLAVE
AP2 FMC B MASTER A SLAVE
FLT CREW INTERFACES AFS VIA
AFS CP 2 MFDS 2 KCCU 2 PFDS with FMA 2 NDS 2 EFIS CP 1 AP DISC PB SIDESTK 4 THRUST LEVERS WITH 2 A/THR INSTINCTIVE DISC PBSW
MFDS INTERFACE
INTERFACE WITH FMS
INFO ON FLT PLAN
AIRCRAFT POSN
FLT PERFORMANCE
FCU BACKUP
SURV
ATC