Follow along and explore the hard evidence of debris, debris patterns, and video of collapse. This is the type evidence which will be presented to a grand jury if there were to be a new investigation. Those who claim controlled demolition brought down WTC7 have to overcome this evidence with structural evidence of CD in order to open a new investigation. My research finds the Structural remains of Building 7 show no sign of controlled demolition.
Before delving into the structural evidence, it is important to know about this fatal damage to the south face of Building 7. Watch this brief clip:
Haven’t seen this before? How did it get there? Be sure to follow this blog for those answers. This chapter establishes that indeed, Building 7 was slashed top to near bottom on the south face:
Photo by Tom Franklin 9/11/01:
When I first noticed this dark vertical line on the south face of WTC7, like most observers, I dismissed it as a shadow, or other building feature. Veiled in smoke, and because of it’s even shape, it was easy to overlook. Further study several years later revealed it to be a fatal breach, largely responsible for building failure.
(Click on photos for enlargement)
This photo shows gash from top down 7 floors. It actually begins as a gouge:
A close-up of the top reveals more. Enlarge for detail:
The next photo I believe shows the lower portion of the gash. I cannot be positive of the column locations, but it appears to me the southwest corner of WTC7 is right at the corner of the white building on the left, which is Verizon Building. That would make the damage shown here indeed the bottom area of the gash, and part of the central hole described by firemen, who could see only parts of it due to the smoke.
A comparison with the Bankers Trust Building:
A composite of the above photos:
The reason the line of the gash is cleanly vertical is because the piece of perimeter wall which did this damage was cradled between two columns as it fell, much like the edge of a sword. The nature of damage indicates the plane of the falling perimeter wall struck flat or at an angle, then turned sideways, and turned back to flat near the bottom.
WTC7 perimeter wall, and a panel of WTC1 perimeter wall being lowered into place:
The lintel I-beams of WTC7 (horizontal piece between each column) were sandwiched between the columns, and were no match for the 50 or more tons of plummeting steel perimeter wall from WTC1. The only resistance was the welds on each end of the lintel. The WTC1 perimeter wall fell between two of those columns (photo is not the actual columns which were hit, but from the east wall).
The piece of perimeter wall from WTC1 which struck WTC7, based upon the width of the initial gouge at the top, was at least 2 panels wide when it struck, then turned sideways where the hole narrowed. Since it was falling at an arc, the fact it ripped through the wall down to at least the 23rd floor means it was longer than one panel.
Most of the falling wall panels from both towers were in units of 3 or more attached panels. Each panel weighed approximately 15 tons.
There is no question the south face of WTC7 was severed top to at least the 23rd floor, and likely to near the bottom. Those 24 floors of perimeter wall breach alone would be fatal for the building. NIST it seems, did not have this information when modeling collapse of WTC7, which makes their models moot, and is the source much confusion and distrust of the NIST report. Controlled demolition proponents claim south face damage was minimal. These photos show damage to the building was fatal. Integrity of the perimeter wall, or “curtain”, in a large span design, is vital for lateral and diagonal stability.
How the building collapsed (to be addressed in another chapter) confirms the south face breach. Note the NE part of the building is folding vertically toward the camera at onset, and continues as collapse progresses. There is more curvature of the north face near the top than lower, which means the SE corner was leaning toward the camera, but the west part of the building was resisting, trying to fall south.
An argument can be made the SE corner could fall to the north without there being a gash, since the roof truss was at this point destroyed. It could, but without a break in the perimeter wall curtain on the south side, it would force the SW corner to the west. Any direction of lean in the east sector of the building would have distorted the SW corner. No such distortion can be seen in the above photos. There had to be a breach of south face in order for the perimeter wall collapse to initiate as it did.
The sudden lean of the SE corner occurred as soon as the west penthouse kinked, or when the roof truss failed completely.
An overhead illustration of the roof at initiation:
The fold of the north face at initiation (of perimeter wall part of collapse) confirms the south face top down breach.
The logical next question is how the gash got there. Video evidence confirms a section of WTC1 indeed hit the top of WTC7 in the vicinity of column 20, covered in the next chapter, “WTC7 Gash – How It Got There”.