Nist Wtc7 Press Release Thurs. Aug. 21, NIST NCSTAR 1-9 & 1A Options

[dMz]

FWIW, there is a press release and webcast scheduled for 11-noon EDT on Thurs. Aug. 21, 2008.

"The draft WTC 7 investigation report released at the briefing will be open for public comment through noon Eastern Daylight Time on Sept. 15, 2008."

http://www.nist.gov/public_affairs/calmed/wtc_081808.html

links to:

http://wtc.nist.gov/

[dMz]

To emphasize from Dr. Frank Greening's paper above:

"5.0 Collapse Initiation and Propagation

NIST’s computer simulation of the collapse of WTC 7, as presented in Chapters 8 and 12 of NCSTAR 1-9, is remarkable for the low temperatures - as low as 100 °C – at which failures of connecting elements such as bolts and studs are predicted to have first occurred in WTC 7 after about 3:00 p.m. on 9/11. These failures were caused, so NIST asserts, by the thermal expansion of asymmetrical framing beams and girders on the east side of floors 12/13. Nevertheless, in NIST's model, complete separation of column 79 from lateral restraints to buckling is predicted to occur only at temperatures well above 300 °C. Thus NIST’s collapse initiation hypothesis requires that structural steel temperatures on floors 12/13 significantly exceeded 300 °C - a condition I believe that could never have been realized with NIST’s postulated 32 kg/m2 or lower fuel loading."

[Omega892R09]

... is remarkable for the low temperatures - as low as 100 °C – at which failures of connecting elements such as bolts and studs are predicted to have first occurred in WTC 7 after about 3:00 p.m. on 9/11...

Well d, things are crystal clear.

This is why they didn't want to use water to fight the fires in case boiling water caused more rapid failure of all the joints in the building. (IMG:http://pilotsfor911truth.org/forum/style_emoticons/default/laugh.gif)

[dMz]

Well d, things are crystal clear.

This is why they didn't want to use water to fight the fires in case boiling water caused more rapid failure of all the joints in the building. (IMG:http://pilotsfor911truth.org/forum/style_emoticons/default/laugh.gif)

Yes O892... fortunately I live at "high altitude" where water boils around 95-97C, so I'm safe to use steel there. (IMG:http://pilotsfor911truth.org/forum/style_emoticons/default/thumbsup.gif)

EDIT: Seriously though, boiling rusted, frozen iron/steel parts is a pretty good way to crack them loose BTW.

[Omega892R09]

EDIT: Seriously though, boiling rusted, frozen iron/steel parts is a pretty good way to crack them loose BTW.

Don't I know it! (IMG:http://pilotsfor911truth.org/forum/style_emoticons/default/smile.gif)

Sometimes a big can of freeze spray was used as a last resort, this not because the technique was dangerous, but it was, but because all manner of sh*t would fly after using it. The only freeze spray available in those days was a CO2 fire extinguisher misuse of which was a punishable offence (Articles of War and all that). Besides that is one hell of a lot of freeze for one joint. (IMG:http://pilotsfor911truth.org/forum/style_emoticons/default/laugh.gif)

Easing stuck fastening was a well practiced art with the ol' Phantom F4K. One outer wing upper surface panel had 948 fasteners, mostly close tolerance high tensile steel countersunk, and there was its twin (these known as panels 111 left and right) on the other side of the cab (idiom for A/C in the FAA, the hair force called ‘em kites), and both these panels had to be removed, on each of 12 aircraft, every 21 days for greasing the outboard leading edge flap link bearing.

It was not uncommon to have to drill off the heads when all else including Easy-outs had failed of about 10 percent. That is alot of screws to drill.

Then there was 36 left and right along the sides of fuselage just forward of the engine centre bearing breather. These were so long, and the aircraft skin so highly stressed, that a support had to be put in place under the keel just forward of the deck-hook attachment and a nose jack also positioned, otherwise the aircraft bent out of shape.

This is the second time I have had to post, the connection dropped just as I hit add reply.

Edit. On rewriting forgot the opening line.

This post has been edited by Omega892R09: Sep 12 2008, 01:03 PM