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Originally posted by Joey Canoli
Would a constant 1500 be a problem?
But Bazant and Zhou have proven that just 250C, for a column under load, results in enough creep to cause column failure i just 45 minutes.
Originally posted by Joey Canoli
it's common for troofers - not saying that you fall into that group of degenerates
Originally posted by Valhall
4 - The NIST report states (and it would be worth your time to read it since you clearly haven't yet) that NO STRUCTURAL ELEMENT WAS AT ELEVATED TEMPERATURES FOR THE FULL DURATION OF TIME BETWEEN IMPACT AND COLLAPSE. That means - doesn't matter spit what 45 minutes gets you - the elements were not at the elevated temperatures for 45 minutes!
Originally posted by OmegaPoint
Why doesn't me barbeque collapse when I leave it on high for a long time..?
Originally posted by Watcher-In-The-Shadows
reply to post by Valhall
I am not so sure that is the case. In my honest opinion dropping enough weight on the top *of the intact or unbroken part of the structure* is enough to start a chain reaction that will bring the building down. In a way simular to hold a fifty pound weight in your hand and dropping it on your hand.
Originally posted by Joey Canoli
So then what was your point of bringing it up in the first place? I was merely correcting someone I consider to be both an artisan and a professional.
With authority? Is that so? Are you a recognized structural engineering expert? Or is it that you believe in yourself enough to call yourself an "authority"?
Apologizes then. But of course it's common for troofers - not saying that you fall into that group of degenerates - to be purposefully vague so that they can play "gotcha".
And that's why collapse initiation will occur. Load transfer due to creep, physical damage, heat weakening, etc.
Interestingly enough, IMHO, column strength won't have any affect on the collapse progression. THAT would depend on the floor connections. Floors fail, leaving ext columns unbraced, which then peel away, as seen.
And core columns might or might not survive the passing of the collapse front passing, depending on the particulars of how the debris passed each individual column and floor/brace. But in the end, they would be some long lengths poking up, which would end up toppling.
Do you agree that the column strength would have no effect on the collapse progression, or do you have another idea?
BTW, thx for keeping it civil....
Originally posted by Joey Canoli
Originally posted by OmegaPoint
Why doesn't me barbeque collapse when I leave it on high for a long time..?
Cuz it's engineered not to.
It really IS that simple. All manner of things are engineered to survive certain conditions.
Originally posted by weedwhacker
The 'flash' has been most convincingly theorized to be the Flight Deck O2 tank exploding upon impact.
Look at this Flammable Material Locations diagram produced by Boeing for Airport F&R personnel. (I really should just bring this to the ATS image gallery, so I can display it in a post....)
Originally posted by OmegaPoint
Why doesn't me barbeque collapse when I leave it on high for a long time..?
Originally posted by weedwhacker
The implication, and 'theory', of something OTHER than a normal passenger jet hitting each of the Towers doesn't have any merit, regardless of what some of these 'analysts' have tried to say.
Originally posted by weedwhacker
I looked at the webfairy video, and indeed the 'flash' is small, and in the EXACT location in the forward, lower right fuselage where the O2 tank is mounted.
The other still frame captures merely show the sunlight reflecting on the paint.
The Boeing 767 tanker transport aircraft, designated KC-767 for the US Air Force, is a high performance version of the Boeing 767-200ER twin aisle jetliner equipped for fully integrated tanker operations. It is fitted with either boom and receptacle refuelling, hose and drogue refuelling or both. The commercial 767 first entered service in 1982 and more than 880 aircraft have been delivered. The cabin of the tanker can be configured for passenger transport, as a freighter, convertible (passenger or freighter) or Combi (passenger and freighter).
DESIGN
The structure incorporates new materials such as improved aluminium alloys, graphite composites and hybrid Kevlar graphite composites, which give enhanced strength, durability and longevity.
The configuration of a commercial 767 for the tanker transport role involves the installation of additional pumps and auxiliary fuel tanks together with the fuel distribution lines below the floor of the main cabin, leaving the main cabin free for cargo, passenger or both cargo and passenger transportation. The concept allows simultaneous refuelling and airlift operations or successive refuelling and airlift missions.
In the cargo configuration, the aircraft can transport 19 standard military 463-L pallets; in the passenger configuration, 200 passengers can be accommodated; and in the Combi configuration ten cargo pallets and 100 passengers can be carried.
COCKPIT
The 767 Tanker Transport aircraft has an advanced two person all-digital flight deck.
www.airforce-technology.com...
[atsimg]http://files.abovetopsecret.com/images/member/b5ccb260a75b.jpg[/atsimg]
You don't even know what you are arguing against as you haven't even read the other material and your argument shows it. Which is funny as your constant attempts at qualifying doesn't even register the fact this problem at it's basis is a problem with how the mind incorporates memories which deals with all of us, there is no training to get around it *as funnily enough you think firemen and policemen recieve this mythical training and special ops and soldiers do not*. And making essentially superhumans of the people saying things you want to believe.
And it's funny you guys accepted without question the lies of the so called "gunsmith" that didn't even know what rifling *he called it fluting* was for.
Originally posted by billybob
reply to post by Valhall
i miss you.
i hope springer's not the jealous type, lol!
on the point, though, and FOR THE OTHER SIDE!!! ......
a large differential between the hot side and the cool side could cause "steel snapping" fractures in the micro-structure of the steel, no? (and in graduations, steel bending, at the "right" temperature, is also a consideration).
damn. maybe i'm a "debbie", lol!
signed,
"just wanting to know the actual truth".
Creep causes planes of slow movement in a material's crystalline structure that are also a function of time. This slow movement or slip can cause sufficient deformation to cause a sudden fracture even when the applied stress is much lower than that which normally could produce a failure under normal loadings.
Originally posted by OmegaPoint
I don't know.. the video slomo of the flame-flash sequence through impact reveals that it wasn't a small event at all. To the contrary, it was HUGE, almost a third the width of the entire fuselage.
webfairy.911review.org...
And damned if it doesn't look like it's eminating from the end of that apparent cylindrical pipe-like structure along the side, seen from two totally different angles here (what you refer to as nothing more the glints off a completely normal fuselage or, as the painjob on the bottom of the aircraft)
[atsimg]http://files.abovetopsecret.com/images/member/70777d8ff4cb.jpg[/atsimg]
To the contrary, it was HUGE, almost a third the width of the entire fuselage.
...(what you refer to as nothing more the glints off a completely normal fuselage or, as the painjob on the bottom of the aircraft)...
Now I'm not saying it was the exact same model, only that these aircraft, in particular the Boeing 767-200 and 300 can be re-configured and re-engineered as a Tanker variant, and some do possess remote piloting and missile capability.
...and some do possess remote piloting and missile capability.
Research 9/11 War Games
Personally, I am convinced that the plane which hit the south tower was not flight 175 piloted by one of the 19. No, I'm sure it was a military drone aircraft, and I've even offered some evidence to support that contention, not the least of which is the proof of controlled demolition of the twin towers and building 7 on 9/11.
Originally posted by Watcher-In-The-Shadows
reply to post by Rigel Kent
Ah, more unproven conspiracy theory to back up an unproven conspiracy theory. The irony.