WTC1 77W-75N Ejection Begins Before Collapse Initiation
By detecting motion by subtraction, over-pressurization can be seen on the 77th floor as early as the collapse initiation sequence 20 floors above.
High quality Achimspok study of ejection:
The moment when the 77th floor ejection first becomes visible is shown below:
It is important to know that the 77th fl MER HVAC system only services floors xx to 91 as shown:
Follow-up discussion here
Created on 05/02/2009 11:02 AM by admin
Updated on 03/24/2011 06:51 PM by admin