http://history1900s.about.com/od/194...mpirecrash.htm
http://en.wikipedia.org/wiki/Constru...e-Robertson-60
"Aircraft impact
The structural engineers on the project also considered the possibility that an aircraft could crash into the building. In July 1945, a B-25 bomber that was lost in the fog had crashed into the 79th floor of the Empire State Building. A year later, another airplane nearly crashed into the 40 Wall Street building, and there was another near-miss at the Empire State Building.[60] In designing the World Trade Center, Leslie Robertson considered the scenario of the impact of a jet airliner, the Boeing 707, which might be lost in the fog, seeking to land at JFK or at Newark airports.[61] The National Institute of Standards and Technology (NIST) found a three page white paper that mentioned another aircraft impact analysis, involving impact of a jet at 600 mph (970 km/h), was indeed considered, but the original documentation of the study was lost when Port Authority offices were destroyed in the collapse of the World Trade Center.[62]"
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For the nutcases that continually said that it could not happen:
1. Then why design for it?;
2. Who quit reading history?
3. Who forgot about 1993?; and
4. kamikaze?
