OMG, NIST Is wrong.
Your are wrong too. Gee, one second you are saying NIST is wrong when they are right, and the next you are saying they are right when they are wrong.
No you said that NIST was wrong in your comment.
I am right on the 600 mph being bogus. Your bogus 600 mph WTC tower survival from fueled aircraft is bogus. Did I say bogus. Yes NIST has the to system answer wrong. I mean the WTC can not survive an impact of a 600 mph jet full of fuel.
I'm wrong? And now NIST is wrong. Have you contacted NIST informing them of their error? Have they acknowledged the error your accusing them of? Isn't it your duty to contact them to inform them of their error?
My information comes from NIST! Where does your data come from? Les Robertson whose data can't be confirmed?
The design impact for the WTC was a low fuel, low speed 707, lost in the fog trying to land. You know, lading gear down, flaps down, 180 mph. You are wrong because you believe hearsay of 9/11 truth and the error in NIST. If you would read NIST for understanding you would understand you have HEARSAY. Let me explain in my next post. I would not have to waste my time explaining to you if you would use comprehension when you read! Plus multiple sources help.
Can you cite this information from the NIST report, please?
Funny, if you were to read the NIST entries about 600 mph, and understood energy, and engineering, you could see clearly how a 600 mph impact does not meet the design criteria mentioned when the make the ERROR of 600 mph.
Are you stating NIST is wrong about the 600mph? Or are you stating the engineers in 1960's just made those numbers up and slapped them in their white paper? Or were the laws of physics and engineering different in the 1960's?
Gee, the top speed below 10,000 feet is 250 KIAS, how do you get 600 mph for a plane lost in the fog. And the top speed with flaps is below 200 KIAS or slower dependign on the amout of flaps down. Thank your parents for me, if you paid USA taxes, I was sent to pilot training in supersonic trainers with your tax dollars and I understand flying, or enough so reheat and that marine aviator can correct me.
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Oh I see, so pilots, planes, structural engineers, and physics always obey FAR 91.117 regulations. Do mechanical malfunctions, pilot errors, and hijackers obey flight regulations?
Or are you stating engineers design buildings based upon flight regulations?
But later I will show you how NIST made an error. You may not understand since you are not an engineer. To go back to the design. What do you think they thought the risk from aircraft was? I cheated, they told me they checked the design for an impact of a slow speed jet, the biggest at the time, was a 707. The slow speed is due to the fact no planes are near the WTC when they fly fast. The 707 can only do 355 KCAS at 700 feet without eventual damage, and that is the top speed based on a 707 design. If you follow the 350 KCAS to 27,000 feet or so you can pick up .9 MACH, and begin to see 600 mph when you are cruising above 25,000 feet. The reason 250 KIAS is below 10,000 feet is a speed limit for safety since the smaller planes are slower.
Are you saying a plane can not fly above 600 mph below 10,000 feet?
Oh and you are wrong. The cruising speed of a Boeing 707-340 is 607mph.
Since you can not tell me why a 707 would be doing 600 mph into the WTC and why the engineers planned on 600 mph. I will have to stick with what the engineers really designed an aircraft impact for! Slow speed, use 180 mph and you can see; the impacts on 9/11 were 7 to 11 times greater, and this is the reason the WTC failed. The WTC could not handle an aircraft impact and all the fuel. Thus from a systems engineering point of view the WTC failed due to an aircraft impacts and all the phenomenon associated with that event.
This answer is for Corsair as well...
I may be wrong but wouldn't engineers, using the 600 mph figure, design their building to withstand the worst case scenario possible in an air disaster at the time-a 707 at that cruising speed of 607 mph?
I believe, and structural engineers can correct me if I'm wrong, that that is being ultra-conservative in the design of the building for safety's sake of course.
Would you design a building based upon the lowest legal speed possible or the highest speed the plane could reach?
You realize then that the engineers designed their building for the slow speed plane, it would not be an ultra conservative design, which contradicts Emery Roth & Sons, the architectural firm that designed the Twin Towers.
Are you prepared to disagree with the firm that designed the Towers?
You realize that what your stating is that a plane that reaches 181 mph's+ and collides with the Twin Towers would have resulted in the global collapse of the building.
BTW, NIST is not really wrong, YOU are wrong; again. Why are you alwasy wrong?