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EASA- HighIWC Final Meeting

EASA HighIWC (EASA.2011.OP.28). Presented by Airbus - CNRS (LATMOS/BOM – LaMP – SAFIRE). EASA- HighIWC Final Meeting. Project Overview: Context, Objectives, Deliverables. EASA- HighIWC Final Meeting Project Overview: CONTEXT.

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EASA- HighIWC Final Meeting

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  1. EASA HighIWC (EASA.2011.OP.28) Presented by Airbus - CNRS (LATMOS/BOM – LaMP – SAFIRE) EASA-HighIWC Final Meeting Project Overview: Context, Objectives, Deliverables EASA.2011.OP.28

  2. EASA-HighIWC Final MeetingProject Overview: CONTEXT EASA.2011.OP.28 Commercial aircraft have been experiencing in-serviceevents (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….

  3. EASA-HighIWC Final MeetingProject Overview: CONTEXT proposed regulations envelope (Altitude vs. Temperature) proposed regulations envelope (TWC vs. Altitude) EASA.2011.OP.28 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):

  4. EASA-HighIWC Final MeetingProject Overview: CONTEXT HAIC and EASA-HighIWCwithin international approach EASA.2011.OP.28 International HIWC fieldexperimentoriginally 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).

  5. EASA-HighIWC Final MeetingProject Overview: OBJECTIVES EHWG & Recommendations - - - HAIC L2 Project HAIC/HIWC International F/T V alidation or Amendment Campaign - 2014 of Appendix P (or D) EASA - HighIWC Assessment & gap analysis of the environment proposed in the NPA 2011 - 03 ( Appendix P) Airbus F/T Campaign - 2010 HAIC and EASA-HighIWCwithin international approach In-service events NPRM10-10 NPA 2011 03 & 04 (= Notices of proposedrulemaking) Validate or propose modifications of the mixed phase and glaciated icing environment as defined in App. D & P. Define and integrate payload of Falcon 20 • 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). F/T Developement Plan & ready to fly aircraft Data Analysis, Assessment vs. App P GapAnalysis & Recommendations EASA.2011.OP.28

  6. EASA-HighIWC Final MeetingProject Overview: OBJECTIVES EASA-HighIWCwork plan structure ... will define & prepare instrumental payload for the Falcon 20 in order to participate to the HIWC / HAIC study. … willassess the proposed mixed phase and glaciated icing environment as defined in Appendix D & P. EASA.2011.OP.28 The project is structured into 3 work packages:

  7. EASA-HighIWC Final MeetingProject Overview: Deliverables & Milestones Sequencing EASA.2011.OP.28

  8. 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 becopied or disclosed to any third party without EASA HighIWC Contractors’ prior written authorization Project funded by the European Aviation SafetyAgency(EASA) EASA.2011.OP.28

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