9/11: Scientific Evidence Flight 77 Did Not Strike The Pentagon (tags)
"Given the topography and obstacles in its path, forces generated by the transition from downward flight to level flight would cause the aircraft to disintegrate before striking the Pentagon. A simple formula, familiar to high school students, may debunk the official account of American Airlines Flight 77 that is alleged to have struck the Pentagon on September 11, 2001. "
Onboard GPS to calculate Airplane's Real Speed! (tags)
The distance an airplane is travelling between two points,as indicated on its GPS could easily be calculated to show the airplane's actual air speed between those two points! ..................................................