Operational Landing Distances Implementing the TALPA ARC proposals International Air Safety Seminar 2011 Airbus Operational Landing Distances Presented

Operational Landing DistancesImplementing the TALPA ARC proposals

International Air Safety Seminar 2011

Airbus Operational Landing Distances

Presented byLars KORNSTAEDT / Performance Expert, Airbus Flight Operations Support

International Air Safety Seminar – Singapore November 1-3, 2011

TALPA ARC Concepts



Page 2

FAA TALPA ARC – Runway Assessment Matrix



Code

2

Runway Contaminant

Greater than 1/8” of:•Water•Slush

Mu (µ)

~29-21µ

Deceleration and Directional Control Observation

Brake deceleration and controllability is between

Medium and Poor.Potential for hydroplaning

exists.

PiRep

Mediumto

Poor

DOWNGRADEONLY

•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



Procedure

Examples



Compact SnowBraking Action Medium

Wet in Heavy RainStorm Cells above Airport

Dry Snow over Ice,Braking Action Medium

Compact SnowOAT 1ºC Dewpoint 1ºC

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

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



• 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


Airbus Situation – AFTER


A320 in Tegucigalpa / Honduras

MHTG/TGU RWY 02

LDA 5410ft / 1649m

Elevation 3287ft

CONF FULL / VREF+5 / no wind / OAT 20ºC

LW

Dry 64.5t

Wet 59.9t

Standing Water 53.8t



Limited by MLW / Dispatch

OLD FOLD

Dry 1330m 1520m (no rev)

Good 1600m 1830m (all rev)

Med to Poor 1910m 2200m (all rev)

21-24 March 2011 17th Flight Safety Conference

Page 10

Airbus Implementation Schedule



Operational Documentation - QRH



EFB Landing Application









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

Documents

Operational Landing Distances Implementing the TALPA ARC proposals International Air Safety Seminar 2011 Airbus Operational Landing Distances Presented