Progress in Aviation Safety and Security: Fire Protection and Fuel Tank Inerting

Progress in Aviation Safety and Security: Fire Protection and Fuel Tank Inerting
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The Aviation Safety and Security Program led by NASA Glenn focuses on reducing accidents and improving safety measures in the aviation industry. One of the program's key initiatives

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Slide1Aviation Safety  and  Security  Program                                                 Accident  Mitigation  and    Fuel  Tank  Inerting Aviation  Safety  and  Security  Program                                                 Accident  Mitigation  and    Fuel  Tank  Inerting 1 NASA Glenn Progress in Fire Protection  Research International Aircraft Systems Fire Protection Working Group Workshop Atlantic City NJ.     5-6 November, 2003 Bob McKnight   robert.c.mcknight@ nasa.gov Al Linne             alan.a.linne@nasa.gov Clarence Chang  clarence.t.chang@nasa.gov Jennifer Xu  jennifer.c.xu@nasa.gov

Slide2Aviation Safety  and  Security  Program                                                 Accident  Mitigation  and    Fuel  Tank  Inerting Aviation  Safety  and  Security  Program                                                 Accident  Mitigation  and    Fuel  Tank  Inerting 2 Accident Mitigation Project Manager -- Bob McKnight Fire Prevention Element Manager-Clarence Chang Inerting/Oxygen Manager-Clarence Chang Fire Safe Fuels Manager-Martin Rabinowitz Cargo Fire Detection Manager- Gary Hunter Advanced OBIGGS/OBOGS Fuel Tank Inerting Elevated Flash Point Fuels / Flammability Low False Alarm Fire Detection Organization- Accident Mitigation Project

Slide3Aviation Safety  and  Security  Program                                                 Accident  Mitigation  and    Fuel  Tank  Inerting Aviation  Safety  and  Security  Program                                                 Accident  Mitigation  and    Fuel  Tank  Inerting 3 Recent Accomplishments  Fuel Tank Inerting - Flight test planning JSC B-747 Shuttle Carrier Aircraft - Valcor PH II -testing of small scale advanced high temp membrane - Honeywell PH II-identified high temp materials and solvents for advanced membrane manufacturing process - Security program planning - Flammability feed-back control sensors, algorithms - Participation in Air Force Large Aircraft Survivability Initiative (LASI)  Low False Alarm Fire Detection - Testing at NIST - Testing at Boeing Commercial - Proposal for hidden fire detecting and locating on technology  Elevated Flash-Point Fuels - Fuel modification concepts identified.

Slide4Aviation Safety  and  Security  Program                                                 Accident  Mitigation  and    Fuel  Tank  Inerting Aviation  Safety  and  Security  Program                                                 Accident  Mitigation  and    Fuel  Tank  Inerting 4 Figure 2. The missile’s 2.2 pound warhead detonates inside the engine nacelle.(3) Civil transport aircraft are now subject to what was once only a military threat –MANPADS and Small Arms (Man Portable Air Defense System) Their proliferation has resulted in numerous shoot-downs and close-calls involving civil passenger aircraft . From 1975-1998, 585 passengers and crewmembers of commercial transport aircraft died from MANPADS missile attacks. The attacks brought down 24 aircraft and severely damaged 10. (1) . They have long reach to arriving/departing aircraft Key to the threat is the difficulty of securing the 100 or more square miles of land surrounding civil airports. (2) They use the fuel system against the aircraft The   explosion of a 2 lb MANPADS warhead or impact effects of small arms can induce a far larger explosion of fuel tanks. Moderate damage can be magnified to make the aircraft unflyable. Countermeasures to throw off guidance systems are limited Countermeasures can be defeated Small arms operate without automatic guidance 1. National MANPADS Workshop, Redstone Arsenal AL, 1998 2. “The Vexing Problem of Protecting Airliners from MANPADS”  Aircraft Survivability Magazine, spring 2003 3. Aircraft Survivability Magazine, spring 2003 Figure 1. The five foot long Stinger is seen approaching the C–130 from the rear.(3) Security-Fuel Tank Inerting Background

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