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1 posted on 02/21/2003 4:34:05 PM PST by yonif
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To: yonif
http://www.nasaproblems.com/

2 posted on 02/21/2003 4:44:07 PM PST by TLBSHOW (God Speed as Angels trending upward dare to fly Tribute to the Risk Takers)
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To: yonif
bttt
3 posted on 02/21/2003 4:46:39 PM PST by stands2reason
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To: yonif
PDF File of the e-mail.
4 posted on 02/21/2003 4:56:21 PM PST by Mr_Magoo (Single, Available, and Easy)
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To: Jael; Fred Mertz; fooman
ping
5 posted on 02/21/2003 4:57:10 PM PST by TLBSHOW (God Speed as Angels trending upward dare to fly Tribute to the Risk Takers)
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To: yonif
This is nice. Now we are up to -three- chunks of foam.

Notice how the "good stuff" comes to light well after the initial media glare?
6 posted on 02/21/2003 5:08:39 PM PST by Milwaukee_Guy
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To: yonif
The tire issue has been discussed from the beginning. Strange to this spun as something just now revealed.
7 posted on 02/21/2003 5:22:18 PM PST by OldFriend (Pray)
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To: yonif
I posted here two days after the shuttle breakup that the left tire exploded and blew the wing off so we freepers are pretty good detectives also.
8 posted on 02/21/2003 5:24:15 PM PST by Uncle George
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To: yonif
"But Mazanek estimated that a chunk of ice the same size would have been more damaging because it weighs 63.4 pounds (28.5 kilomgrams) "the equivalent of a 500-pound (225 kilogram) safe hitting the wing at 365 mph (582 kph)"

The operative equation for kinetic energy is 0.5*M*V^2, where M = mass, and V = Velocity. In this case the velocity term of interest is actually the "relative velocity" of the debris when it struck the wing. Use of this operative equation suggests that Mazenek thought that the relative velocity of the postulated ice chunk would have been about 1025 mph, which is higher that previous estimates that have been discussed (510 mph). One suspects that this much kinetic energy would have caused immediate and extensive damage to the wing itself.

A 63.4 pound block of ice would have had a much greater "ballistic coefficient" than a 2.67 pound block of foam, since the mass is much greater (a factor of 24x), while the drag would be approximately the same. It is very unlikely that a block of ice decelerated to a relative velocity of 510 mph, let alone 1025 mph.

However, an intermediate scenario would be if the debris was a combination of foam + ice. This combination could scale up the kinetic energy proportionally to the total mass, without drastically altering the ballistic coefficient by a factor of 24x. For example, what if the debris what mostly foam with a small ice content? It is conceivable that a 4 pound chuck of water / ice could decelerate to a relative velocity of 400-500 mph, which would still be a devastating amount of kinetic energy.

14 posted on 02/21/2003 5:46:11 PM PST by Resolute
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The signal was recorded at about 14:30 GMT. It shows a gradual ramp up of signal followed by a series of sharp events that appear to be explosions, somewhere between 7 and 12 separate events, with one widely spaced small event near the end. It took the sound wave about 30 minutes to arrive at the infrasound array in Lajitas, Texas. Best estimate of real-time for the first large peak is 13:59, within a minute of when NASA lost the telemetry signal.

Calculation of the azimuth (angle to the source) of the peaks of the signal recorded at TXAR by the SMU team show that, though the peaks are spread across about 11 minutes, during which time the shuttle would have traversed a few thousand kilometers, the azimuths all came from the same direction, within plus or minus one degree. This indicates to the seismologists that these are not separate explosions, but rather multiple paths, more properly 'refractions,' of a single explosive event. That event appears to have occurred at about 13:59 over west Texas between Lubbock and Amarillo, at an altitude of about 62 kilometers. Previous simulations of infrasound signals done by researchers at the Los Alamos National Laboratory ("Modeling Study of Infrasonic Detection of 1 kT Atmospheric Blast" by K.A. Dighe, R.W.Whitaker, and W.T.Armstrong) of the stratospheric and thermospheric infrasonic returns from a single explosion show striking similarity to the multi-peak infrasound signals recorded for the breakup of the Columbia at TXAR. SMU analysts compute the signals as most likely a single decompressive event.

17 posted on 02/21/2003 5:54:01 PM PST by Light Speed
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To: yonif
NASA knew that there was a problem during launch. They made a decision to move forward instead of making a massive investigation. Someone should hang. Period.

This is just like the time that I warned the Free Republic community that Al Gore's cronies in Florida were going to try to rig the election by selectivly challenging districts votes throughout the state, in heavily democratic areas. I was called a slew of names, half of the insults, of course, included a reference to my registration date. I was "Bot-a-Bing" back then, and have also been other names.

NASA leaders BLEW IT. Their negligence and piss-poor decisions lead to the death of 7 heroes. They need to step up to the plate and take responsibility.

And as for the rest of you jack-asses who constantly fanboy defend ANYONE and ANYTHING that smacks of right-wing patriotism - I encourage you to think.

The war on drugs is a joke.
The last 75 years of Constitutional Law in the US Supreme Court is a joke.
The total abdication of the Republican Party on morals, and absolutes is a shame.

The true Republican Party, the absolute truth of conservative constitutional hopes, dreams and ideals is not dead.

Think.
20 posted on 02/21/2003 6:14:14 PM PST by Bronco_Buster_FweetHyagh
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To: yonif

22 posted on 02/21/2003 6:34:50 PM PST by Nick Danger (Freeps Ahoy! Caribbean cruise May 31... from $610 http://www.freeper.org)
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To: yonif
This E-mail relates to what they should do if data tells them there is no pressure in both tires on the left main landing gear. Should Colombia have ever had opportunity to make the final approach, I'm sure they would have been given their options of bail out, belly or gear down landing. They got the tire pressure failing data some 15 minutes or so before their scheduled landing so there was nothing they could have planned for before committing to retro burn. There is no hidden NASA agenda here.

What I think happened, based on small but larger than I expected damage possible from impact of the foam (ramp covering), is that it actually hit the leading edge carbon-carbon, either in close proximity to or in such a place that the leading edge deflected sufficiently from the impact, so as to disrupt the carbon-carbon "T" seal between these panels or damage the panel attach fittings so that upon initial reentry the seal failed or the panel broke loose. This TPS breach would have allowed hot gasses to enter the wing, leading to structural failure.

Few of these hot gasses would have entered the wheel well, accounting to the relatively low temperature increases. The "T" seal failure would have led to local carbon-carbon panel separations, or the attachment failure would have had the same effect, either of which would have shown the same irregular leading edge profile "jagged edge" that appeared in the Air Force long range photograph.

If the failure was in extensive tile damage, I don't think we would have gotten the "jagged edge" photo but rather the wing would have failed without the upstream leading edge damage.
31 posted on 02/21/2003 9:26:49 PM PST by NJJ
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To: yonif
Top NASA administrators are now claiming these e-mails were never forwarded to them from the lower depths. I think that is probably BS.

This thing is going to be a major scandal. The NASA gag order, issued immediately after the disaster, has already been revealed in the Enquirer.

44 posted on 02/22/2003 12:06:29 PM PST by Fulbright
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