Announcing a new paper, "The Pentagon Event: The Honegger Hypothesis Refuted," by Victoria Ashley, David Chandler, Jonathan H. Cole, James Hoffman, Ken Jenkins, Frank Legge, and John D. Wyndham.
The paper can be found in the Pentagon section of http://www.scientificmethod911.org or directly at http://www.scientificmethod911.org/docs/Honegger_Hypothesis_042916.pdf.
Honegger's hypothesis is that no plane impacted the Pentagon on September 11, 2001, and that pre-planted explosives caused all the deaths and damage. Honegger also postulates that a large "white" plane was destroyed outside the Pentagon west wall without causing any damage to the wall.
The authors of the above paper refute Honegger's hypothesis and show that the physical, eyewitness, radar, and FDR data, plus other data, all support impact by a large silver plane, a Boeing 757, and most probably American Airlines Flight 77, as the main cause of all the deaths and damage.
In March 2002, five frames from a Pentagon surveillance camera (which we shall call Camera 1) were released. It showed a smoke trail but no apparent plane. Any plane would have had to be hidden behind a foreground obstruction, and it seemed intuitively implausible to many people that a 757 would fit behind that obstruction. This series of frames did much to launch theories of the Pentagon attack asserting no plane, or a small plane rather than a 757, or a missile. More frames from the same camera and a second series of frames from a nearby camera (which we shall call Camera 2) were released in 2006, but they did not get the attention they deserved. The Pentagon had become a contentious issue in the 9/11 Truth Movement by then and many of us were focusing our attention on the World Trade Center and seeing the Pentagon as a diversion.