9-11 Research does not endorse all of the conclusions of this presentation.
For analysis of this issue, see The Pentagon No-757-Crash Theory: Booby Trap for 9/11 Skeptics
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Using Photos to Determine Impact Damage

No single photo shows full extent of impact puncture damage, pre-collapse.
A composition based on the available photos does.

Area of impact damage (walls broken):

  • No more than 90 feet wide across the first floor
  • No more than 13 feet wide across the second floor
  • No more than 26 feet high

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