Plane hitting a concrete wall

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Plane hitting a concrete wall

When you view this clip you'll get a good feel for what happens to
an aircraft when it hits a concrete wall.

Many of you have heard Michael Moore, Martin Sheen, Rosie O'Donnell
and
others ask the question: if it's true that a Boeing airliner hit the
Pentagon, what happened to all the parts of it? Why did we not find
more
pieces of it? Where did all that mass GO?'

Well, for those who question what happened to all the mass of that
airplane,
watch.

It's an Air Force engineering test of a concrete barrier that was to
surround a nuclear reactor dome, to see if it would indeed survive
an aerial attack. With the high speed cameras rolling, they attached
an F-4 Phantom to the sled and then pumped up the speed to 500 MPH.

So what happens when an 'Unstoppable Force' meets an immovable object?
Watch in slow motion as the F-4 turns to vapor.