reply to post by SPreston
Level with the ground necessary to miss foundation
(refer to image from SPreston's post)
That graphic from your post won't copy/paste, but look at it! Again, you are using innuendo, guesswork, allegations and downright flawed graphics to
attempt to justify your delusions!
That diagram shows a yellow line, below the outline of the B757, and it is labeled "bottom of center fuel tank", or some such nonsense.
That would have the fuel tank hangin' out in the breeze!!! So, the rest of the graphic lacks credibility. WHY/HOW do you, or anyone else, know that
the airplane impacted EXACTLY at the slab between floors? What if it was a foot higher? Two feet? One foot, 11 inches? Two feet, 7 inches?
The ENGINES are underslung, and would still enter the First Floor, and wreak havoc. Support columns being devastated, stuff collapsing all around, it
was chaos.
AND, once more....the 'eyewitnesses'. The only way any of them could be absolutely,
positively certain that the airplane they saw was
DIRECTLY over the Annex buildings if they were AT the Annex building. Judgement of angles and distance? Relative size of the airplane, and therefore
its exact ground track?? By unqualified 'observers'? Pretty flimsy to hang your hat on.
EDIT because Preston likes to bring lots of pictures and prose. Well, here's an actual scholarly examination, without the 'influence' of those who
have already made up their minds, and pound square pegs into round holes to make their "conclusions" of a "NO PLANE" fit. (I can't get the
pictures to work, will have to follow the link):
www.aerospaceweb.org...
According to the accepted story, American Airlines Flight 77 was hijacked by five al Qaeda terrorists as it was traveling from Washington DC to
Los Angeles. The aircraft involved in this hijacking was a Boeing Model 757-200 with the Boeing customer code 757-223 and the registration number
N644AA. This same aircraft is pictured above in a photo taken at Logan International Airport in Boston on 7 August 2001. The terrorists steered the
plane into the west side of the Pentagon killing 59 passengers and crew as well as 125 victims on the ground.
Those who doubt this version of events point to wreckage at the Pentagon as proof that some other kind of aircraft or missile was actually responsible
for the attack. Probably the one piece of debris that has prompted the most debate is the following photo of what looks like a rotary disk from the
interior of the plane's engine. This disk could be part of a fan, a compressor, or a turbine rotor from inside the engine, but the blades are not
present and were presumably knocked off in the impact.
(see link for image)
Rotating engine disk visible at the Pentagon
(see link for image)
Close-up views of the Pentagon engine component
Based on the sizes of the person standing next to the debris and other objects in the photographs that we can use for comparison, it has been
estimated that the disk is approximately 25 to 30 inches (63.5 to 76.2 cm) across. Obviously, this piece is far smaller than the maximum engine
diameter of 6 feet (1.8 m) or more leading many to draw the conclusion that the item is not from a 757 engine. That conjecture causes conspiracy
theorists to believe that a much smaller vehicle must have struck the Pentagon instead.
However, we have already seen that rotating components within a turbofan engine can vary widely in size. In order to determine whether this component
could have possibly come from a 757, we need to take a closer look at the engine installed aboard the aircraft registered N644AA. Boeing offered two
different engine options to customers of the 757-200. Airlines could choose between the Pratt & Whitney PW2000 family or the Rolls-Royce RB211 series.
The particular engine model chosen by American Airlines for its 757 fleet was the RB211-535E4B triple-shaft turbofan manufactured in the United
Kingdom. A drawing illustrating the overall size of this engine is pictured below.
(see link for image)
Diagram of the Rolls-Royce RB211-535 turbofan
Note the relative sizes of the forward portion of this engine compared to the central core. Clearly, the section housing the fan is much wider than
the turbojet core that contains the compressor and turbine components. We can get a clearer view of the relative sizes of components within this
engine in the following cut-away drawing of the RB211-535.
(see link for image)
Cut-away of the Rolls-Royce RB211-535 turbofan
Using these images and other diagrams of the RB211-535 engine, we can obtain approximate dimensions of the engine's rotary disks for comparison to
the item found in the Pentagon rubble. Our best estimate is that the engine's twelve compressor disk hubs (without blades attached) are about 36% the
width of the fan. The five turbine disk hubs appear to be slightly smaller at approximately 34% the fan diamter. According to Brassey's World
Aircraft & Systems Directory and Jane's, the fan diameter of the RB211-535E4B engine is 74.5 inches (189.2 cm). It then follows that the compressor
disk hubs are approximately 27 inches (69 cm) across while the turbine disk hubs are about 25 inches (63.5 cm) in diameter. Both of these dimensions
fit within the range of values estimated for the engine component pictured in the wreckage at the Pentagon.
(There is more, see link)
[edit on 6/28/0909 by weedwhacker]