This airplane hit a solid stone building at very high speed. The
aluminum in the airframe was obliterated. Have you never seen the
video of the F4 phantom slamming into the concrete barrier to test the
containment vessel of a nuclear power plant? The F4 literally
vaporizes. Nothing left but the wingtips that miss the outside edge of
the concrete...

Jay Honeck has this video on his website. Watch it and you will
understand what happened to Flight 77.

Dean