Transcript of Hearing 12/12/97 - TWA Flight 800 Investigation

12491will be at the ARAC.2so,we have covered most of those issues, I34think, all ready. Can I put up my first slide?(Slide shown.)5Thank you.I want to borrow a little bit6from Dr.Ball’s book and go back to his basic equation78of combat survivability in which he said that that wasequal to one minus susceptibility times vulnerability.9In his case,he is defining susceptibility as exposure10to a military damage mechanism, a missile round or some11type of weaponry,and vulnerability is the damage121314151617mechanism in tolerance that the airplane exhibits.I think part of the effort here is trying todevelop a way to write across some of the militarydesign philosophy into the civilian sector, and I thinkwe can do that beginning with this equation.If we move into the civilian side of the18house,we can write this to say that Flight Safety will19equal one minus the susceptibility times the20vulnerability, as well,except in our case we define212223the susceptibility differently.It is not a combat threat, it is an exposureto a system failure and/or a damage mechanism within24the system.Our vulnerability remains very much the25same.It is an intolerance to system failure, or theCAPITAL HILL REPORTING, INC.(202) 466-9500