Obviously, the 1945 incident between the Bomber and the ESB is not a hoax but its use as support for the unique behavior of the 911 planes most probably is.
In my opinion, the championing of this story as proof of a plane's ability to penetrate scrapers, was skillfully managed, in its initial stages, by disinformation artists. I am not impugning anyone here at P4911T. I am merely pointing out the fact that we are constantly being manipulated by half truths and distortions. (I do wish more of us would wake up to the Perpeteers' ruses.

)
During a recent exchange between Bonez and myself, when BoneZ brought up this same old chestnut, I wrote this in response:
"One of the engines and part of the landing gear hurtled across the 79th floor, through wall partitions and two fire walls, and out the south wall's windows to fall onto a twelve-story building across 33rd Street. The other engine flew into an elevator shaft and landed on an elevator car. The car began to plummet, slowed somewhat by emergency safety devices. Miraculously, when help arrived at the remains of the elevator car in the basement, the two women inside the car were still alive.
Some debris from the crash fell to the streets below, sending pedestrians scurrying for cover, but most fell onto the buildings setbacks at the fifth floor. Still, a bulk of the wreckage remained stuck in the side of the building."
Empire State Building CollisionApart from the two engines:
(1) Some debris from the crash fell to the streets below
(2) Most fell onto the buildings setbacks at the fifth floor.
(3) The bulk of the wreckage remained stuck in the SIDE of the building.
Not much total penetration going on there!

The discussion between BoneZ and myself can be read on page 2 (and following) of this thread:
BoneZ and FfG discuss 1945 ESB collision.shrug7272: I hereby direct you, and all future champions of the ESB Penetrator to the above Alt. Theory Topic. Quite frankly, I begin to tire of all these repeated exchanges about it.