Reply #11: Ding Ding Ding

[sgsmith]

We have a winner!

"You make an assumption the floors above are the same as the floor showing venting. I'd bet the floor showing the arrow is a mechanical floor."

The red arrow points to the mechanical floors. Don't believe me - just look over at the North Tower and see the different shading that's at the same elevation. Then there is the second set of different shading on the North Tower. Voila - two sets of mechanical floors are documented.

BTW - We (the general public) have absolutely no idea what the floor plan looked like on the mechanical floors. It's documented that the floor was built of higher density concrete, and didn't use the floor truss arrangement that the general use floors used. I'm guessing from an HVAC perspective that there were large vents to allow for the intake and exhaust of air used to produce chilled water and/or steam.

Also, notice the big hunk of structure that's falling between the two towers. Guess what - it's at the same damn elevation of the "premature explosions". Maybe, just maybe, something inside the tower - like an elevator cab - free fell inside the building until it hit the mechanical floor, producing an explosion of dust.