Boeing 707 - 767 Comparison
In 1966, Robertson designed the structural elements of the WTC towers to withstand the impact of the largest airliner then in service, the Boeing 707.
|The above image is taken from Chapter 1 of the WTC Report [FEMA PDF of report]. To see how
willing to "stretch the truth" the authors of
the report are, compare the above image to the original (which can be found here). Notice that
they have "accidently" quoted the length,
height and wingspan of one of the early 707's (possibly
the Boeing 707-120) and the weight, fuel capacity and
speed of the more common Boeing 707-320B (the aircraft
that most people associate with the name, Boeing 707).
The above graphic has been edited to give a more accurate
To summarize the aircraft:
The Boeing 707 and 767 are very similar
aircraft, with the main differences being that the 767 is
slightly heavier and the 707 is faster.
In all the likely variations of an
accidental impact with the WTC, the Boeing 707 would be
traveling faster. In terms of impact damage, this higher
speed would more than compensate for the slightly lower
weight of the Boeing 707.
See also: The 9/11 WTC Collapses: An Audio-Video Analysis
What Really Happened