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MMR
IRS
FMS
IRS position
GPS position
FMS position
EGPWS
 In GPS PRIMARY mode, on-board system integrity has
a confidence greater than 99.9%, so the FMS position
can be relied upon without any additional navigation
cross check (using ground based navaids)
 Clear status of GPS PRIMARY is therefore provided to
the crew
GPS PRIMARY crew interface
GPS PRIMARY GPS PRIMARY LOST
GPS PRIMARY crew interface
CLB FLT4567890
CRZ OPT REC MAX
FL350 FL370 FL390
<REPORT
UPDATE AT
*[ ]
BRG /DIST
---° /----.- TO [ ]
PREDICTIVE
<GPS GPS PRIMARY
REQUIRED ACCUR ESTIMATED
2.1NM HIGH 0.16NM
GPS PRIMARY
CLB FLT4567890
CRZ OPT REC MAX
FL350 FL370 FL390
<REPORT
UPDATE AT
*[ ]
BRG /DIST
---° /----.- TO [ ]
PREDICTIVE
<GPS
REQUIRED ACCUR ESTIMATED
2.1NM HIGH 0.28NM
GPS PRIMARY LOST
+ triple click during approach
RNP navigation
 AIRBUS is promoting RNP (required navigation
performance)
 All A318/A319/A320/A321/A330/A340 aircraft are
fitted or have been retrofitted with RNP capable
equipment
 RNP allows crew awareness of estimated aircraft
position accuracy compared to procedure designer’s
required performance assumptions
NAV ACCUR UPGRAD
 RNP management provides HIGH and LOW navigation
accuracy system monitoring against the Required
Navigation Performance
 The system estimated accuracy has a 95% confidence
RNP crew interface
NAV ACCUR UPGRAD NAV ACCUR DOWNGRAD
RNP crew interface
CLB FLT4567890
CRZ OPT REC MAX
FL350 FL370 FL390
<REPORT
UPDATE AT
*[ ]
BRG /DIST
---° /----.- TO [ ]
PREDICTIVE
<GPS
REQUIRED ACCUR ESTIMATED
0.3NM HIGH 0.28NM
NAV ACCUR UPGRAD
CLB FLT4567890
CRZ OPT REC MAX
FL350 FL370 FL390
<REPORT
UPDATE AT
*[ ]
BRG /DIST
---° /----.- TO [ ]
PREDICTIVE
<GPS
REQUIRED ACCUR ESTIMATED
0.3NM LOW 0.56NM
NAV ACCUR DOWNGRAD
AIRBUS flight management details
 Multi-sensor navigation & automatic navaid tuning
 triple IRS, dual VOR & DME, GPS
 nIRS only, nIRS/VOR/DME, nIRS/DME/DME, nIRS/GPS
 LOC updating
 RNP management
 GPS primary navigation
 RAIM or AIME on-board integrity monitoring
 certified for RNP 0.3 NM use
 Datalink
 including F-PLN, T/O DATA and WIND uplink capability from
AOC (Airline Operational Control)
AIRBUS flight management details
 4D flight planning & predictions
 runway to runway 4D pre-computed optimized flight profile
 real time optimization
 decelerated approach profile, 3D non-precision approaches
 full autopilot coupling capability (dual FMS, dual monitored
AP)
 time resolution 1 minute, guidance accuracy around 2 minutes
 planned improvement to 1 second resolution, accuracy better
than 30 s
Flight planning
 Origin
 Departure SID
 Engine out SID
 En-route
 Arrival STAR
 Approach
 Destination
 Missed approach
 Alternate flight plan
Vertical flight management
D
SPEED
LIMIT
SPEED
CONSTRAINTS
ALTITUDE
CONSTRAINTS ALTITUDE
CONSTRAINTS
ORIGIN
DESTINATION
SPEED
CONSTRAINTS
SPEED
LIMIT
ACCELERATION ALT
THRUST REDUCTION ALT
CRUISE FL STEP FL
IDLE path
geometric path
approach path
pressurization
segment
TAKEOFF CLIMB CRUISE DESCENT APPROACH
APPROACH
SPEEDS
TAKE-OFF
SPEEDS
TIME
CONSTRAINT
10-11-12-13 September 2002-Morocco ARAB INSTRUMENT PROCEDURE DESIGN SEMINAR
Navigation database : ARINC 424
ARINC 424 path terminator concept
 The Path and Terminator concept is a means to permit
coding of Terminal Area Procedures, SIDs, STARs and
Approach Procedures
 Charted procedure are translated into a sequence of
ARINC 424 legs in the Navigation Database
 Flight plans are entered into the FMS by using
procedures from the navigation database and chaining
them together
ARINC 424 path terminator concept
 23 leg types have been created to translate into computer
language (FMS), procedure designed for clock &
　
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