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Full-scale GBI Testing with B747 SP: Fire Safety R&D

Conducting full-scale testing on a Boeing 747 SP to quantify parameters affecting Ground-Based Inerting (GBI) systems' benefits. Explore wind effects, equipment usage, and potential system cost.

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Full-scale GBI Testing with B747 SP: Fire Safety R&D

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  1. Full Scale GBI Testing with B747 SP July 17-18, 2001International Aircraft Systems FireProtection Working GroupWilson, NC AAR-422 Fire Safety R&D

  2. Background • Focus of the Testing is to Better Quantify the Parameters that Effect the Benefit of GBI • Wind and Weather • Equipment Usage • Cross Venting • Study Manifold Design • Study the Cost and Benefit of Potential OBIGG Systems. • Platform to Examine Cross Flow Reduction Methods AAR-422 Fire Safety R&D

  3. Boeing 747 SP AAR-422 Fire Safety R&D

  4. Work Completed • Wrote Research Plan and Testing Safety Plan • Have a Preliminary Schedule • Start Testing 8-6-01 • Test for 12 Weeks • Obtained Aircraft • Located Preliminary Parking Spot • Have Most Support Equipment Required • Began Installing Testing Control Center and Instrumentation. • CWT has Been Opened and Cleaned and is Ready to be Modified AAR-422 Fire Safety R&D

  5. Instrumentation Planned • Gas Sample Tubing • Sample Oxygen at Eight Locations in the CWT • Sample THC at Any Two of Those Locations • Sample Oxygen in Surge Tanks, Dry Bay • Thermocouples • 8 in Fuel • 8 in Ullage • 16 Mounted on Interior Wall Surfaces • Plan to Measure Pressure in Tank Bays • Record NEA Volume Flow and Oxygen Concentration AAR-422 Fire Safety R&D

  6. 747 SP Gas Sample Locations Dry Bay 1 2 3 4 5 6 7 8 AAR-422 Fire Safety R&D

  7. Potential Instrumentation Improvements • Measure NEA Flow and Purity Directly • THC Measurements at Surge Tank • Wind Speed and Direction • ? AAR-422 Fire Safety R&D

  8. Pending Work • Modify CWT • NEA Delivery System • Thermocouples • Sample Tubing • Complete Installation of DAS and Control Room • Get NEA Source on Site • Do End-to-End Signal Check AAR-422 Fire Safety R&D

  9. Full Scale GBI System Diagram Ground Based NEA Supply Ground Heat/HVAC NEA Hose Reel Movable Stairway Ground Power Tow Bar Tug AAR-422 Fire Safety R&D

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