1225 km/h, 661 Knots, 761 mph, 1.00 mach = sea level
0748 km/h, 404 knots, 465 mph, 0.60 mach = WTC1 impact
0853 km/h, 460 knots, 530 mph, 0.69 mach = pentagon impact
0950 km/h, 513 knots, 590 mph, 0.77 mach = WTC2 impact
mach 1 is only 1% less at 1…
1225 km/h, 661 Knots, 761 mph, 1.00 mach = sea level
0748 km/h, 404 knots, 465 mph, 0.60 mach = WTC1 impact
0853 km/h, 460 knots, 530 mph, 0.69 mach = pentagon impact
0950 km/h, 513 knots, 590 mph, 0.77 mach = WTC2 impact
mach 1 is only 1% less at 1,368 feet so
1053 KM/h, 568 knots 654 mph , 0.86 Mach = MAX speed for the 155 foot long, 125 foot
Wing span Boeing 757 has a 12 foot fuselage & 07 foot wide 16 foot long engines
0980 KM/h, 528 knots, 608 mph, 0.80 Mach = MAX speed for the 159 foot long, 156 foot
Wing span Boeing 767 has a 18 foot fuselage & 12 foot wide 16 foot long engines
truther estemates reliance on photographs in which smoke & water jets obscure the
impact zone that then collapsed about 30 minutes after the impact SUCK SEO find
pre-collapse photos that completely show walls extending from the collapsed section
look up the other missing photos as "FBI released new photos of the 9/11Pentagon"
the 16 inch thick (outer) wall was not particularly strong , if the wings were level, the right wing would have demolished the white construction trailer in addition to the emergency generator next to it. & The left wing slipped below the second floor slab and thus created a larger hole.
about two-thirds of the length of the right wing also entered the building but the rest of the wing way past the right engine did not. The outer portion of the right wing crashed above the first floor, and the horizontal second floor slab absorbed much of the force of the impacting wing above the first floor. the limestone facade was only breached between columns 13 and 15 on the second floor. did not inflict much visible damage between columns 20 and 22. there is impact damage on the third and fourth floors between columns 18 and 21. so the wing fragmented into pieces after the impact with the power generator, and the outer wing tip was hurled up to the third and fourth floors.
http://engineeringtoolbox.com/elevation-speed-sound-air-d_1534.ht..
