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Originally posted by thedigirati
I don't know if this has been considered, it was a new thought to my twisted little mind, but the two 767's would act like a huge F.A.E. when they hit the towers
Significant overpressures can be generated by both detonations and deflagrations. Most vapor cloud explosions are deflagrations, not detonations. Flame speed of a deflagration is subsonic, with flame speed increasing in restricted areas and decreasing in open areas