Has anyone else related to the construction project commented on the twin towers structure regarding aircraft impacts?
Yes. According to Emporis.com, Leslie E. Robertson (Chief Engineer of the World Trade Center) replied to a question at a Berkeley alumni presentation about how to protect buildings from aircraft impacts. He said: “I don’t think we can solve the problem that way….. the problem is with us, not our buildings, and it will be with us for a very long time”[13]. He states that the original design consideration was of a 707 travelling at 290km/hr and onboard fuel was not considered[14]. It’s interesting that he did not originally think the fire from the fuel would be a significant problem (otherwise the fuel loading would have been taken into account in conjunction with the kinetic energy of the 707). Whatever the case, it is clear that he now thinks the fire was a significant contributor to the collapses: “At the same time, the fires raging in the inner reaches of the buildings undermined their strength. In time, the unimaginable happened . . .” Unfortunately it appears that Robertson did n
Has anyone else related to the construction project commented on the twin towers structure regarding aircraft impacts?