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The plane debris observed in the various photographs does indeed comport with that of a 757, at least to the limited degree with which they can be compared to actual 757 parts or the manufacturer's detail drawings, as shown above. The engine compressor or turbine disk appears to be approximately the correct diameter to have been used in a Rolls Royce RB211-535E4B engine, as used in American Airlines 757 aircraft. The fragment of the high pressure combustor casing also comports with the string of fuel inlet nozzle holes, the mounting bosses of which have the correct number of screw holes (6). The combustor is definitely not from a Pratt and Whitney PW2037, which is the other make of 757 engine used in the airline industry, nor is it from a General Electric CF6-80C2.
Some of the most prominent advocates of the no-757-impact theory have radically mis-characterized the dimensions of the impact "hole". Thierry Meyssan describes the hole as 15 to 17 feet wide, apparently on the basis of photographs, such as the one to the right, in which the spray from the fire suppression efforts obscures the first floor, which had far more extensive damage.
The following annotated photos show exactly the locations of impact damage on the Pentagon E-ring facade. The outer limestone facade was breached between column lines 8 and 18, producing a hole spanning approximately 96 feet. Additional impact damage can be found between columns 5 and 8 and between columns 18 and 20. The entire width of impacted facade measured at least 140 feet, as indicated by the building plan in the Arlington After Action Report.
We see that the entire left wing damaged the building, and almost the entire wing except for the wing tip entered the building. The right wing just a little past the right engine also entered the building. However the rest of the wing, about two-thirds of the length of the wing, did not. The reason for this was the angle of the wings. The right wing was higher than than left; if the wings were level, the right wing would have demolished the white construction trailer in addition to the emergency generator next to it. The outer portion of the wing crashed above the first floor, and the horizontal second floor slab (more strongly reinforced than the vertical columns and which was parallel to the vector of the impacting wing) absorbed much of the force of the impacting wing above the first floor. The left wing slipped below the second floor slab and thus created a larger hole. The right wing did inflict considerable damage above the first floor, but the limestone facade was only breached between columns 13 and 15 on the second floor. Due to the strength of the floor slabs, the dimensions of the hole reflects the structure more than the actual dimensions of the plane.
originally posted by: gooseandspoons
a reply to: cardinalfan0596
So you mean to tell me a hijacker who could barely manage a smaller aircraft, took a 757 for the first time and successfully leveled the plane mere feet from the ground without so much as a belly slide and crashed it into the side of the pentagon creating a hole less than 10'x10'?
originally posted by: waypastvne
a reply to: LaBTop
If you want to hit something with a plane... all you have to do is look at it and you will hit it.