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October 30-31, 2002 International Aircraft Systems Fire Protection Working Group Atlantic City, NJ

Flight Testing of the FAA Concept OBIGG System on a Boeing 747SP. William Cavage AAR-440 Fire Safety Research Federal Aviation Administration. October 30-31, 2002 International Aircraft Systems Fire Protection Working Group Atlantic City, NJ. Background.

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October 30-31, 2002 International Aircraft Systems Fire Protection Working Group Atlantic City, NJ

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  1. Flight Testing of the FAA Concept OBIGG System on a Boeing 747SP William CavageAAR-440 Fire Safety ResearchFederal Aviation Administration October 30-31, 2002International Aircraft Systems FireProtection Working GroupAtlantic City, NJ

  2. Background • Focus of the Testing is to Validate the Concept of In Flight Inerting as Outlined by Ivor Thomas. • Study Distribution of Inert Gas During the Phases of a Typical Commercial Mission • Study the Cost and Benefit of Potential OBIGG Systems. • Study Diffusion of Inert Gas After a Typical Aircraft Operation AAR-440 Fire Safety R&D

  3. Work Plan • Modify OBGI System to Resemble the Ivor Thomas Concept • Validate Existing ASM Performance Data and Obtain Additional Altitude and Low Pressure Data • Reconstruct and Validate the OBOAS • Model the System Performance and CWT Inerting Behavior in Altitude Chamber • Obtain Flight Test Aircraft, Install System and Instrument Aircraft • Do Testing • Claim Victory AAR-440 Fire Safety R&D

  4. Existing Cooling Inlet Check/Shutoff Valve Center Wing Tank Cooling Air, Flow reverses on Ground Shut Off Valve Temp control valve NEA Flow Heater Filter High and Low Flow Orifices (In common valve) ASM Heat Exchanger Waste Flow (O2 rich) Low flow, High Purity NEA for Ground, Climb and Cruise, High Flow, Low Purity NEA for Descent Existing Bleed Line Overboard Exit Simple Full-Time Inerting System AAR-440 Fire Safety R&D

  5. Simplified OBIGG System AAR-440 Fire Safety R&D

  6. Simplified OBIGG System AAR-440 Fire Safety R&D

  7. Status • System Modified and Installed on 747SP Ground Test Article • OBOAS Reconstructed and Validated • Single Membrane Testing Done • Preliminary Scale Tank Inerting Testing Completed • System Readiness Review Completed? • Need 747SP Flight Test Aircraft Commitment • Working with Boeing • Seeking Additional Parties AAR-440 Fire Safety R&D

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