I see you know as much about this as you do physics. Zero. You can not form a rational question? Please get on topic and try to contribute, stop making up lies and junk ideas about 9/11.
The FDR has no terrain in it! The animation is plotting FDR parameter related to the flight of 77. The real world outside of the animated aircraft is supplied by images essentially placed by "hand". Then the accuracy of the FDR information could only tell you within 2000 to 4000 feet where the plane was. This is a problem if you want an image lined up. For takeoff there is no real problem. Place the animation based on aircraft parameters on the runway.
By the end of the flight the accuracy from the FDR is still off and is not off the same amount as it was at the beginning of flight, it has drifted. So even if you align the Pentagon with the takeoff runway, the animation is not going to be over the real spot it was on 9/11. The animation is made from the FDR, it has no real reference to the ground.
So please explain what you are trying to mess up and lie about this time?
I NEVER once said the terrain data was part of the FDR file! LMAO!
I typed (if you can read?), why is the runway correctly oriented, and the Pentagon off?
I then asked if this terrain data was specially drawn up just for 9/11, or
if the NTSB had this same profile in the past to study other flights.
Learn the difference. Answer the questions.
I guess you believe someone just by chance drew in the wrong location
of the Pentagon to make things interesting?