It appears some posters are still ignoring the principles of aerodynamics, concerning exactly of what commercial jetliners are capable of doing under
any and all conditions.
So, let us examine some weight stats on a 767-200:
767-200 - Empty with JT9Ds 74,752kg (164,800lb), with CF6s 74,344kg (163,900lb). Operating empty with JT9Ds 80,920kg (178,400lb), with CF6s
80,510kg (177,500lb). Max takeoff 136,078kg (300,000lb), medium range max takeoff 142,881kg (315,000lb).
The above is the same model allegedly used in NYC. Yet, the empty weight is only 163,900lb or 178,400lb. The take-off weight is 300,000lb or
315,000lb. respectively. That is a gross difference of 136,100lb. or 136,600lb respectively. Of course, some people may wish to attribute all that
excess to payload, luggage, and any equipment on board. However, would that actually be true on take-off weight? Or, is there something more
involved than physical take-off weight of airplane and contents?
Until people actually examine aerodynamic principles, it is very easy to be convinced commercial jetliners are no less capable of extreme maneuvering
at the any altitude levels, than the B-2 stealth bomber or F-18 Hornet. That is not true.
Of course, any claims of alleged hijackers being the experts, of the Blue Angels expertise, may well seem plausible to some but certainly not others,
as evidenced in these and many other discussions across the Internet. Yet, no proof has been provided it is true. In fact, no proof of commercial
jetliners maneuvering as B2 stealth bombers or F-18 Hornets has been proved either. There is insistence it can happen but no proof.
Even when Boeing personnel, including an engineer, hedges but agrees the 767 cannot fly at 700', or even 1000', at high speeds, even that cannot be
true, because some posters would then have to admit they were lied to by the "official" reports.
As for the Pentagon, when perimeter vertical supports are still standing at an area, of wall, alleged to have allowed a 757 to be "swallowed", all
logical reasoning states it never happened that way. Even the Pentagon's own camera video says no plane impacted, much less was "swallowed" intact
by the Pentagon.