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 [email protected]
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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
Organization- Accident Mitigation Project
Advanced OBIGGS/OBOGS Fuel Tank Inerting
Elevated Flash Point Fuels / Flammability
Low False Alarm Fire Detection
Figure 2. The missile’s 2.2 pound warhead detonates inside the engine nacelle.(3)
Security-Fuel Tank Inerting Background
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
Theexplosion 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)