Aerodrome operating minima head up displays enhanced vision systems
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Aerodrome Operating Minima Head-Up Displays Enhanced Vision Systems. NPA-OPS 41. Presenters. Robert-Jan Venema (CAA NL) Chairman, AWOSG Tim Price (AEA / British Airways) Secretary, AWOSG [Bo Eckerbert (LS Sweden) Retiring Chairman, AWOSG]. Organisations Participating.

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Aerodrome operating minima head up displays enhanced vision systems

Aerodrome Operating MinimaHead-Up DisplaysEnhanced Vision Systems

NPA-OPS 41


Presenters

Presenters

  • Robert-Jan Venema (CAA NL)

    • Chairman, AWOSG

  • Tim Price (AEA / British Airways)

    • Secretary, AWOSG

  • [Bo Eckerbert (LS Sweden)

    • Retiring Chairman, AWOSG]


Organisations participating

Organisations Participating

  • AWOSG Member Organisations:

    • CAA NL*

    • LS (Sweden)*

    • DGAC (France)

    • CAA UK

    • FAA*

    • AEA (British Airways, BMI, Air France, KLM*)

    • IFALPA (Braathens)

    • EAG UK

    • Jeppesen

      (* ICAO Panel Members)


Background

Background

  • OST endorsed NPA OPS 41 in May 05

  • Editorial and harmonisation work

  • Workshop for industry on 10 Nov 05

  • OST further endorsement 30 Nov 05

  • RST endorsement end 05

  • Public Consultation 1 Mar – 31 May 06

  • Revision of NPA in light of CRD


Contents of today s presentation

Contents of Today’s Presentation

  • Rationale for NPA 41

    • Contents of the NPA

    • Stabilised Approach

    • Continuous Descent Final Approach

  • Harmonisation work

  • Comment Response Period

  • Detailed Rule & ACJ changes following on from CRD

  • Conclusion


Npa ops 41

NPA-OPS 41

  • The proposal contains draft texts for:

    • Aerodrome Operating Minima (1.430)

      • Comments received post NPA 20, OST, Workshop

      • JAA / FAA harmonisation work (ongoing)

    • Requirements for Cat I, II and III Operations (1.440 and Appendix)

      • JAA / FAA harmonisation work

    • Introduction of HUD & HUDLS

    • Introduction of EVS

    • Training and qualification requirements for all of the above (1.450)


Stabilised approach background

Stabilised Approach - Background

  • CFIT & ALARP programmes encouraged authorities to prescribe stabilised approach criteria

  • SAp: An approach which is flown in a controlled and appropriate manner in terms of configuration, energy and control of the flight path from a pre-determined point or altitude/height down to a point 50 feet above the threshold or the point where the flare manoeuvre is initiated if higher.


Stabilised approach and cdfa

Stabilised Approach and CDFA

  • NPA 20 / 41 defines a new method of meeting the Stabilised Approach criteria: the Continuous Descent Final Approach (CDFA) technique

  • A specific technique for flying the final-approach segment of a non-precision instrument approach procedure as a continuous descent, without level-off, from an altitude / height at or above the Final Approach Fix altitude / height to a point approximately 15m (50ft) above the landing runway threshold or the point where the flare manoeuvre should begin for the type of aeroplane flown.


Cdfa and sap benefits

CDFA and SAp - Benefits

  • The CDFA technique aims to increase the safety of inter alia Non-Precision Approaches by eliminating level flight at MDA, ie close to the ground

  • Pilot workload is reduced as a/c attitude, power and energy are stabilised

  • One ‘decision point’ for the pilot

  • The intention is that all approaches should be flown using the CDFA technique (if physically possible)


Aerodrome operating minima head up displays enhanced vision systems

CDFA

CDFA

NPA

Decision Point

ICAO

MDH

THR

CDFA Technique v ‘Dive & Drive’ NPA

Continuous descent from FAF; no level-flight segment at MDH


Harmonisation work

Harmonisation Work

  • Further meeting of JAA / FAA AWO Harmonisation Working Group in Mar 05

  • FAA members participated in AWOSG meetings

  • FAA will soon publish revised Ch 3 of TERPS (harmonised AOM) for consultation

  • NPA41 represents the European end of the harmonisation process; hence, it is of vital importance


Comment response period

Comment Response Period

  • About 200 responses received

    • Hard to be precise: some were multiple comments on one form

  • Very useful process: much help to the AWOSG from interested parties

  • Most important: none of the comments said ‘this is rubbish, get rid of it!’

  • All were supportive

  • Thank you to all who commented


Detailed rule appendix and acj changes from crd

Detailed Rule, Appendix and ACJ ChangesFrom CRD


Changes

Changes

  • No major change has occurred as a result of the Comment Period

  • The changes fall into 3 main categories:

    • Editing of the English (many thanks to UK CAA for very detailed editorial comments)

    • Clarification of what constitutes an approach operation, and the techniques which may be employed to fly an approach

    • Some better definitions


Changes cdfa technique

Changes - CDFA Technique

  • Continuous Descent Final Approach

    • A specific technique for flying the last part of an instrument approach (as proposed by ICAO OPSP/7, May 06)

    • Not an approach operation in itself

    • This clarification is applied throughout the NPA41 document, notably in the appropriate ACJ

  • Important clarification


Changes enhanced vision systems

Changes -Enhanced Vision Systems

  • An approach may be flown utilising EVS guidance to obtain lower minima

  • There is no such thing as ‘an EVS approach’

  • Another important clarification


Better definitions

Better definitions

  • JAR OPS 1.435 Terminology

    • (9) CDFA

    • (11) HUD

    • (14) EVS

    • (17) Other than Standard Cat II Operation

    • (18) GNSS Landing System [new]


Other changes

Other changes

  • Appendix 1 to 1.430

    • (c)Criteria for establishing RVR / Converted Met Visibility clarified

    • (d)(5) Clarification of the requirements for allowing an RVR of <750m

    • Table 4. Lighting-system definitions improved and aligned with ICAO

    • (f) Requirements for Cat II and OS Cat II clarified

    • (j) Requirements for Circling clarified

  • ACJs improved


Conclusion

Conclusion

  • No major changes have been made since OST 05/2

  • Many of the items have been endorsed separately by the OST at various times in the past:

    • Circling ACJ

    • HUD material

    • NPA 20

    • NPA 41 (first draft; reworking)

  • This major reworking of Sub Part E is overdue and should be well received by the aviation community


Questions

Questions??

Robert-Jan Venema ([email protected])

Tim Price ([email protected])


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