Operational Landing Distances

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Airbus Operational Landing Distances
International Air Safety Seminar – Singapore November 1-3, 2011
Operational Landing Distances
Implementing the TALPA ARC proposals
Presented by
Lars KORNSTAEDT / Performance Expert, Airbus Flight Operations Support
International Air Safety
Seminar 2011
International Air Safety
Seminar 2011
Airbus Operational Landing Distances
TALPA ARC Concepts
Common rules
Page 2
• For all airports
• For all manufacturers
• For all operators
Shared operational
landing
performance
computation
• Realistic Air Distance
• Representative Friction
• All physical effects
considered
Standardized
performance to
match reported
conditions
• Standardized runway
condition assessment
• Allow performance
determination for all
types of reports
International Air Safety
Seminar 2011
Airbus Operational Landing Distances
FAA TALPA ARC – Runway Assessment Matrix
Reporting
Code
Code
2
Measured
Friction
Runway Contaminant
Greater than 1/8” of:
•Water
•Slush
Primary Assessment
Differentiation by Temperature
Mu (µ)
Reported
Braking Action
Deceleration and Directional
Control Observation
Brake deceleration and
controllability is between
Medium and Poor.
Potential for hydroplaning
exists.
PiRep
DOWNGRADE
ONLY
~29-21µ
PiRep Guidelines
Medium
to
Poor
Airbus Operational Landing Distances
International Air Safety
Seminar 2011
Procedure
• Always start assessment with contaminant type and
depth
• Use additional information to
• Degrade to lower friction code
• Never upgrade
• Careful with friction reports
• May be optimistic on fluid contaminants
• Do not hesitate to request additional information
from ATC
International Air Safety
Seminar 2011
Airbus Operational Landing Distances
Examples
Compact Snow
Braking Action Medium
Wet in Heavy Rain
Storm Cells above Airport
MEDIUM
MEDIUM
TO
POOR
Dry Snow over Ice,
Braking Action Medium
Compact Snow
OAT 1ºC Dewpoint 1ºC
NIL
MEDIUM
TO
POOR
International Air Safety
Seminar 2011
Airbus Operational Landing Distances
TALPA Rules in a Nutshell
• Provide Runway Status Reports
• Using Matrix and associated methodology
• In a performance oriented way
• Publish Realistic Landing Performance Data
• In accordance with agreed rules
• For all supported aircraft types
• Make Systematic Landing Performance Check
• In all cases except for dry runway
• Apply a 15% margin to the result
Airbus Operational Landing Distances
International Air Safety
Seminar 2011
Situation for Airbus – BEFORE
• Publication for in-flight use
•
•
•
•
Unfactored certified reference distances used for dispatch
For incomplete list of contaminant types and depths
Coverage of loose snow by equivalence only
Inconsistent assumptions between dry/wet and contaminants for
airborne phase
• Operators must define their own margins
• Pilots have difficulty in using published data with diverse runway
condition reporting methods
Airbus Operational Landing Distances
Airbus Situation – AFTER
• For all Airbus aircraft
• At least “Minimum Compliance” with TALPA ARC
• Cover all 6 friction levels
• Accountability for
• Temperature effect
• Runway slope effect
• Matrix as entry-point
• All Performance data sources
•
•
•
•
•
Flight Ops Engineer Software
Flight Manual
Operational Documentation
Electronic Flight Bag
Training Material
International Air Safety
Seminar 2011
International Air Safety
Seminar 2011
Airbus Operational Landing Distances
A320 in Tegucigalpa / Honduras


MHTG/TGU RWY 02

LDA 5410ft / 1649m

Elevation 3287ft
CONF FULL / VREF+5 / no wind / OAT 20ºC
OLD
LW
FOLD
Dry
64.5t
Dry
1330m 1520m (no rev)
Wet
59.9t
Good
1600m 1830m (all rev)
Standing Water
53.8t
Med to Poor 1910m 2200m (all rev)
Limited by MLW / Dispatch
International Air Safety
21-24 March 2011
Seminar 2011
17th Flight
Airbus
Operational
Safety Conference
Landing Distances
Airbus Implementation Schedule
Feb 2010
Presentation of Octopus specification to EASA
Aug 2010
Communication to Airlines
Q1 2011
Start of PEP/LPC Validation
Apr 2011
PEP/FM Approval by EASA
Q2 2011
Finalisation of Publication Method and Format
Q3 2011
Start of Production of Documentation
Q4 2011
OCTOPUS v28 Certification by EASA
Mid 2012
Publication for A318/319/320/321/330/340
Q3 2012
Publication for A306/310/380
Page 10
Airbus Operational Landing Distances
Operational Documentation - QRH
International Air Safety
Seminar 2011
Airbus Operational Landing Distances
EFB Landing Application
International Air Safety
Seminar 2011
Airbus Operational Landing Distances
EFB Landing Application
International Air Safety
Seminar 2011
Airbus Operational Landing Distances
EFB Landing Application
International Air Safety
Seminar 2011
Airbus Operational Landing Distances
International Air Safety
Seminar 2011
Conclusion
• Airbus adopts TALPA ARC standard for in-flight landing
performance including for non-normal and in ROPS
• Realistic computation basis for all winter runway conditions
• In current environment, pilot must compensate for non yet
compliant Runway Condition Reporting
• Major safety step change requires
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