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ULD Passive Fire Protected

Contact: Dipl. Ing. Robert Huebner BARO-Agentur UG T: +49 421 345100 Cell: +49 151 2401 8444 robert.huebner@baro-agentur.de. ULD Passive Fire Protected. Proven Design Application and current Situation of Burn-Through Test. Aircraft Cargo Hold Burn-trough Protection.

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ULD Passive Fire Protected

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  1. Contact: Dipl. Ing. Robert Huebner BARO-Agentur UG T: +49 421 345100 Cell: +49 151 2401 8444robert.huebner@baro-agentur.de ULD Passive Fire Protected Proven Design Application and current Situation of Burn-Through Test Prepared by BARO-Agentur UG Document No: 0010-006-01- 03 Draft

  2. Aircraft Cargo Hold Burn-trough Protection • Here shown a class “C” cargo compartment according to FAR25.857(c) • Air-tighten Lining acc. to FAR 25.365(e) • Burn-through requirement acc. to FAR 25.855(c). Test 1020°C for 5 minutes, Heat flux 90 KW/m2 – 2 Gallon Burner Test. • Design for security acc. to AC25.856-2A. Burner Test: 6 Gallon Test, 1100°C for 4 minutes, Heat flux 180KW/m2 Example taken from Airbus Aircraft in FRA/GE (Typ.) 1 2 • Test performed according to EASA and FAA requirements as: • EASA CS25.855(c) and FAR 25.855(c), appendix F – Part III 3 4 Burn-through test according to AC25.856-2. Certified first on Airbus aircraft “A330/A340” refer to FAA safety Finding-Issue Paper IP CI-6 signed at stage 4 Prepared by BARO-Agentur UG Document No: 0010-006-01- 03 Draft

  3. Integrative Passive Fire Protection Architecture • Objective: • Improvement of overall cargo hold fire protection architecturetaking into account opportunities mainly given by new technologies (fuel cell and OBIGGS) and new materials (e.g. intumescent paint) • Topic Description: • Analyze new cargo hold classification, impact of potential new restrictions regarding transportation of HAZMAT and opportunities given by new burn-through resistant materials • Investigate synergistic effects between improved ULDs (with respect to burn-through characteristics) in combination with an improved passive fire protection system • Analyze potential benefits if combining container tracking, container monitoring, improved lining and improved ULDs (burn-through and explosion proof) to create new business cases for airlines • Benefits: • Weight reduction • Offer of special services, e.g. transportation of “special goods” • Improved lining architecture within cargo compartment • Partners: • SVT, TAG-Textile Supplier, DLR Picture to illustrate potential of new textiles and materials LD3 ULD under Test. After 2 hours and temperature above 1000°C, no burn-through. After massive cut outs, burn-through were possible (see picture above) Prepared by BARO-Agentur UG Document No: 0010-006-01- 03 Draft

  4. INTUMESCENT COATINGS-PASSIVE FIRE PROTECTION • TECHNOLOGY • Utilization of intumescent materials for improving the fire resistance (burn-through) criteria's of cargo holds. • Intumescent materials form a non-burnable protective layer when exposed to flames or heat, which protects the covered material from heat intake by thermal insulation • Intumescent materials belong to passive fire protection measures, which are intended to contain a fire in the cargo compartment fire of origin, thus limiting the speed of fire and preventing the fire from spreading • BENEFITS • New design concept for cargo hold lining structure leading to a lightweight and less complex design, thus reducing weight and lead time. • New cargo hold fire suppression concept allowing to optimize the weight of cargo hold fire suppression system • Estimated weight savings: • Cargo hold lining ca. 10 to 25 Kg • Cargo hold fire suppression system: ca. 25 Kg • Detailed analysis required to qualify weight savings • APPROACH • Utilization of intumescent materials on cargo hold systems and equipment's to enhance the fire penetration resistance (burn-through) of cargo hold elements (cargo hold liner, ball mats, etc. • ACTIONS • Ensure protection concepts (Patent) • Harmonisation with airworthiness authorities • Definition of certification basis, like same safety finding as done particular on cargo hold (ref to FAA IP CI´s • Elaboration of concepts; specification of technical applications • Establish project team and provide funding • Perform trade-off study to quantify and identify: • Weight benefits • Additional applications; other fields of application • Possible Show stopper • Certification constraints Prepared by BARO-Agentur UG Document No: 0010-006-01- 03 Draft

  5. Integrative Passive Fire Protection Architecture • LD3 burn tests at Test Facility Trauen/Graßberg/Germany. • The InnoTec Data presenter can show few pictures about the tests performed at the village “Trauen” / north of Germany – DLR Test Center. • Figures gives some ideas about the tested materials and how they have withstand the fire attack inside the cargo container until burn through. Prepared by BARO-Agentur UG Document No: 0010-006-01- 03 Draft

  6. Necessary next Steps for InnoTec Aviation: • ULD – Container Requirements • Canvas (protection cover) Requirements (SIOEN) • Intumescent Paint (part of Cover) used as a fire barrier • FAA – MPS (DOT/FAA/AR-TN05/20, second update) • Cover must be equipped with an electrically conductive flexible mesh to detect surface damage • Cover must withstand short-circuit (short-circuit protected) • Cover must withstand the rollable and foldable criteria • Cover must withstand external and internal fire event (Burn-through)for more than 5 hours due to rescue activities – TBC. International Authorities are in the Team identifying the safety rules. • Cover durability - min 10 Years • Zip fastening elements (part of design criteria) • Technical Specification, for manufacturer • Technical Specification for secondary structure – status in work • Technical Specification for the ULD Base plate – status in work • Technical Specification for the shock damping of ULD baseplate – in work • Etc. Prepared by BARO-Agentur UG Document No: 0010-006-01- 03 Draft

  7. Thank you for attention This document and all information contained herein is the sole property of BARO-Agentur UG. No intellectual property rights are granted by the delivery of this document or the disclosure of its content. This document shall not be reproduced or disclosed to a third party without the express written consent of BARO-Agentur UG. This document and its content shall not be used for any purpose other than that for which it is supplied. The statements made herein do not constitute an offer. They are based on the mentioned assumptions and are expressed in good faith. Where the supporting grounds for these statements are not shown, BARO-Agentur UG will be pleased to explain the basis thereof. Prepared by BARO-Agentur UG Document No: 0010-006-01- 03 Draft

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