Here is a picture from the pentagon performance report. it show an approaching aircraft... well this is actually a smoke trail from the port engine after hitting numerous light post on the final moments of flight. also you may notice that the smoke is twisting. this is due to wing tip vortices. i superimposed the actual aircraft picture from airliners.net and resized it porportionally down to the size it is now and look... its the same. and finally, i outlined the REAL aircraft image in this picture. you may think that a shiny 757 should reflect but dont forget that it was early that morning and they were flying northeast. this would put the sun behind them... therefore shading the forward most portion of the aircraft. all of these things you are welcome to look up your self. type in pentagon report in yahoo and select the PDF file then scroll down. theres the crash sequence image! thanks for playing!