EASA HighIWC

EASA-HighIWC Final MeetingProject Overview: Context, Objectives, Deliverables

EASA HighIWC (EASA.2011.OP.28)

Presented by

Airbus - CNRS (LATMOS/BOM – LaMP – SAFIRE)

December 2012

EASA.2011.OP.28

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EASA HighIWC

EASA-HighIWC Final MeetingProject Overview: CONTEXT

December 2012EASA.2011.OP.28 Page 2

• Commercial aircraft have been experiencing in-service events (jet engine power-loss events observed in tropical convection) while flying in the vicinity of deep convective clouds since at least the early 1990s.

• In 2004, an industry working group was established to look at the effects of supercooled large droplets and mixed phase icing conditions on engines.

• The areas of aircraft that have shown sensitivity to ice particles icing threat are heated probes and engines. Ice accretion will depend on surface temperature, Liquid Water Content, Ice Water Content, air speed, etc….

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EASA HighIWC

EASA-HighIWC Final MeetingProject Overview: CONTEXT

December 2012EASA.2011.OP.28 Page 3

Notices NPRM10-10 and NPA11/03 & NPA11/04 have been issued by FAA on June 2010 and EASA on March 2011, respectively, in order to propose a new regulation to cover ice particle threat to aircraft.

FAR33 Appendix D (Ice Crystals & Mixed Phase Clouds):

proposed regulations envelope (Altitude vs. Temperature)

proposed regulations envelope (TWC vs. Altitude)

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EASA HighIWC

EASA-HighIWC Final MeetingProject Overview: CONTEXT

December 2012EASA.2011.OP.28 Page 4

International HIWC field experiment originally planned in Jan.-Mar. 2013 (then delayed by one year) out of Darwin. Use of highly instrumented G-II for in situ cloud µF of HighIWC convective clouds. G-II with 100 flight hours planned.

HAIC (European L2 project) will join HIWC bringing F20 to Darwin equipped with multi-beam 95GHz Doppler cloud radar and a sophisticated state-of-the-art in situ µF package, flying at an additional flight level to G-II one. HAIC: Funding of transit + 50 flight hours of F20.

EASA-HighIWC contribute to HAIC in funding the scientific and technical preparatory work of HAIC (=analysis of A340 data from 2010 and definition/preparation instrumental payload for Falcon 20).

HAIC and EASA-HighIWC within international approach

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EASA HighIWC

EASA-HighIWC Final MeetingProject Overview: OBJECTIVES

December 2012EASA.2011.OP.28 Page 5

(= Notices of proposed rulemaking)

Define and integrate payload of Falcon 20

- EHWG &

Recommendations-

-

HAIC/HIWCInternational F/T Campaign -2014

Airbus F/T Campaign - 2010

EASA-HighIWC

HAIC L2 Project

Assessment & gap

analysis of the

environment proposed in

the NPA 2011-03

(Appendix P)

Validation or Amendment

of Appendix P (or D)

Validate or propose modifications of the mixed phase and glaciated icing environment as defined in App. D & P.

Assess the proposed mixed phase and glaciated icing environment as defined in Appendix D and P in light of the analysis of the test flights conducted by Airbus & Env. Can. (Darwin & Cayenne, 2010).

HAIC and EASA-HighIWC within international approach

NPRM10-10NPA 2011 03 & 04

In-service events

F/T Developement

Plan &ready to fly

aircraft

Data Analysis,Assessment vs. App P

Gap Analysis & Recommendations

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EASA HighIWC

EASA-HighIWC Final MeetingProject Overview: OBJECTIVES

December 2012EASA.2011.OP.28 Page 6

The project is structured into 3 work packages:

WP1 Preliminary analysis of the microphysical

properties of the HighIWC regions

using existing airborne in-situ

observations (A-F)

WP3 Management, Reporting & Recommendations (LAMP)

WP2 Falcon 20 Flight Tests Development

Plan (LAMP)

- Falcon 20 Flight Tests Development Plan

Data exchange

- Literature review-Data collection

-Ready to fly aircraft & Demonstration flights

-Assessment of the data against the Appendix P-Gap analysis

-Administration & reporting-Deliverables-Recommendations & Conclusions

... will define & prepare instrumental payload for the Falcon 20 in order to participate to the HIWC / HAIC study.

… will assess the proposed mixed

phase and glaciated icing

environment as defined in

Appendix D & P.

EASA-HighIWC work plan structure

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EASA HighIWC

EASA-HighIWC Final MeetingProject Overview: Deliverables & Milestones Sequencing

December 2012EASA.2011.OP.28 Page 7

M-2

M-1

M1

M2

M3

M4

M5

M6

M7

M8

M9

M10

M11

M12

M13

2011 2012

1st Interimreport

2nd Interimreport

Final report&

Presentation

D3.2

M3 M6 M11

M1.1

EASA-HighIWC

D3.3 & D3.4D3.1

M3.1

KoM

M3.2

Review 1

Airbus F/Tdata

M1.2Literature

survey

M1.3

M3.3

Review 2

M3.4

Review 3

M2.1Falcon 20 Flight

Tests Development Plan

M2.2Ready to fly

aircraft & Demonstration

flights

Assessment& Gap

analysis

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EASA HighIWCDecember 2012

Ice Water Content of clouds at High altitude (EASA HighIWC, EASA.2011.OP.28)

This document and the information contained are EASA HighIWC Contractors’ property and shall not be

copied or disclosed to any third party without EASA HighIWC Contractors’ prior written authorization

Project funded by the European Aviation Safety Agency (EASA)

EASA.2011.OP.28 Page 8