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  #31 (permalink)  
Old 27-July-2005, 07:41 PM
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Default Re: Re: WHAT IF the heat shield took a hit again....?

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Originally Posted by Mr. Milton Banana
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Originally Posted by Moose
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Originally Posted by Sticks
What about the poor bird [-X
I'm sure someone'll get it some extra-strength ibuprophen just as soon as the pad crew can scrape it off the landscape and vaccuum up the feathers.
LOL!!!!!!!!!!!!!

Lucky you-you'd be owing me a new monitor now if I was drinking my lemonade. :P
Charlie in Dayton, there's your cue...
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  #32 (permalink)  
Old 27-July-2005, 07:54 PM
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Originally Posted by skrap1r0n
Doesn't ISS have a Soyutz "Life Raft"?
Soyuz is kind of small, 9 cubic meters of living space and it will carry up to three cosmonauts/astronauts. You can't cram all ISS crew and Shuttle into a Soyuz, the crew transfer vehicle X38 was meant to be the lifeboat. Jules Verne ATV supply was due to launch soon, but in the meantime Russian-Progress or the unmanned Progress spacecraft can re-supply the station. Some Russian scientists like Nikolai have said if for the crew of shuttle have to remain on the station that they can live off the ISS supply of oxygen, nourishment, water and others and it will be sufficient for some days until another mission is ready and a "Progress" launch was already outlined for the 8th of September.
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  #33 (permalink)  
Old 27-July-2005, 08:46 PM
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seriously, though... how long can the shuttle stay docked before it starts to stress the ISS? If it's years, then all is not lost. You can keep it up there, gut the inside and turn it into zero-g basketball courts. Put solar panels where the heat tiles are (can we get those to stay on, huh?) and it'll have a source of power for itself.

I'm only half kidding here, actually. NASA needs to see this as an opportunity, not a reason to commit hari-kari. It would, of course, totally suck if the shuttle were stuck attached to the ISS, unable to return. But on the other hand, we paid for that payload up there. I see no reason in dragging it back down to earth. There must be *something* we can do with it

John
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  #34 (permalink)  
Old 27-July-2005, 08:55 PM
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Quote:
Originally Posted by jfribrg
Quote:
Originally Posted by Sticks
What about the poor bird [-X
What species was it? perhaps a crow or a pelican ?
According to spaceflightnow.com ...
Quote:
NASA believes the bird struck by Discovery's fuel tank was a buzzard. These large birds can have a wing span of more than six feet and the average weight of a full-grown bird is 6.5 lbs.

"It was in the wrong place at the wrong time," a Kennedy Space Center spokesperson said.
More technically correct, if it was a buzzard it was probably either a Turkey or Black vulture, both common in Florida.
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  #35 (permalink)  
Old 27-July-2005, 11:08 PM
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Like it matters,the bird did NOT hit the shuttle. :x
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  #36 (permalink)  
Old 27-July-2005, 11:47 PM
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CNN just posted that the shuttle program has been grounded pending an investigation.

John
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  #37 (permalink)  
Old 28-July-2005, 01:54 AM
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"Grounded", with one of the shuttles still up in the sky!

There's something in that which seems crazy!
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  #38 (permalink)  
Old 28-July-2005, 09:35 AM
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There will be inspections to see if Discovery's forward landing gear hatch is damaged, NASA has seen damaged tiles and go on to do good missions before but there are some tiles that Shuttle really can't afford to lose though. On the mission of the STS-107, there was David M Brown, Kalpana Chawla, William C McCool, Rick D Husband, Laurel Clark, Michael P Anderson, and a foreigner Ilan Ramon from Israel and at re-entry the damaged wing overheated leading to total disintegration of the vehicle.
There are two foreigners on this current Shuttle flight Japanese astronaut Soichi Noguchi and Andy Thomas an Adelaide, Australian. Perhaps this piece of foam that broke off is causing NASA to look at how similar things are to the last events, NASA may get lucky and it not be a problem if the damage is minor and this time we know about the incident, so there is the posibility of doing a repair or as Aldrin has always said using the ISS as a safe zone.
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  #39 (permalink)  
Old 28-July-2005, 12:27 PM
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Quote:
Originally Posted by shash
"Grounded", with one of the shuttles still up in the sky!

There's something in that which seems crazy!
On 9/11/2001, the US commercial air fleet was grounded with some thousands of flights in the air. Of course, it applied to those aircraft only after they landed.
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  #40 (permalink)  
Old 28-July-2005, 12:41 PM
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Quote:
Originally Posted by hewhocaves
CNN just posted that the shuttle program has been grounded pending an investigation.

John
The crew will spend hours today examining every inch of the shuttle
Russian cosmonaut Sergei Krikalev and US astronaut John Phillips took digital pictures through 400mm and 800mm lenses from the station's Zvezda service module.
http://www.ljplus.ru/img2/p/l/pleset...50728_1418.jpg

Shuttle photo near ISS

http://www.ljplus.ru/img2/p/l/pleset...50728_1421.jpg
It was a suitcase-sized piece of foam that fell off Columbia during its launch and punched a hole in the wing. During its final approach the orbiter performed a backflip so the station crew could check its heatshield for damage and Discovery's belly tiles were imaged by cameras on the Space Station (ISS) as it moved into dock.
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  #41 (permalink)  
Old 28-July-2005, 03:39 PM
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Quote:
Originally Posted by Hazzard
Like it matters,the bird did NOT hit the shuttle. :x
:x here too. Listening to a local rock radio station on the way into work, the news reader said exactly that. "A bird hit the shuttle after liftoff, which caused the foam to fall off." Great. Now the listeners who aren't going to bother to do more research to learn the true facts, are going to think it's the fault of a bird that the shuttle is grounded. I wonder if it's too late to call and correct them. You know, I don't think they'd care anyway, or even bother to correct/retract what they stated.
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  #42 (permalink)  
Old 28-July-2005, 03:56 PM
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Quote:
Originally Posted by Donnie B.
On 9/11/2001, the US commercial air fleet was grounded with some thousands of flights in the air. Of course, it applied to those aircraft only after they landed.
I realise that of course, but it just sounded strange...
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  #43 (permalink)  
Old 28-July-2005, 06:42 PM
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Quote:
Originally Posted by banquo's_bumble_puppy
it did-

http://www.spaceflightnow.com/shuttl.../050726images/

main nose gear aft leading edge

probably one of the worst places to take a hit, (well not actually a 'hit'- it cracked and fell off from stress)
No. I just got of the horn with one of my contacts at Marshall--and he says theymight not even bother to fix that after its return. The RCC was not struck--and dings are par for the course as is the more usual "popcorning."

All this was--was the equivalent of a 16 year old driver who survived a head-on getting back behind the wheel and being super jumpy at every little noise or squeak--and then having someone pull right in front of her and miss.

No harm done--but you wet your pants anyway.

It just takes time.

Though if they nixed the orbiter and ISS and used all that funding on the immediate construction of an SDV/HLLV--more power to them.

Then we can have monolithic Skylab type stations like we should have had all along.
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  #44 (permalink)  
Old 02-August-2005, 12:12 PM
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NASA says the protruding material could cause dangerous overheating during re-entry and lead to another Columbia-type disaster. The arm will be operated by astronauts inside the station, who will bend and wrap Robinson around so he can reach the shuttle's belly. Once there, he'll tug out the ceramic-fabric filler with his gloved hands. If that doesn't work, he'll cut away the material, which is sticking out about an inch from two spots near Discovery's nose. NASA experts are worried that the shuttle could overheat because of instability that the gap fillers, dangling from between thermal tiles on the underside of the shuttle, could cause.



http://www.napacomfort.com/mars/nasa_feed.html
http://spaceflightnow.com/shuttle/st...ts114plan.html
shuttlle pic
http://www40.ksc.nasa.gov/shuttle/co...chan2large.jpg

NASA will be sending a spacewalker beneath the craft to repair filler sticking out from ship's thermal tile belly and carry out some EVA work. Soichi just said "I have considered coming home on the Russian Spacecraft (Soyuz)" when asked about the severity of the TPS damage. Collins butts in and says "She expects everything to be fine." NASA engineers have spent the past three days "working very hard" to assess the risk from the gap fillers, which are only about an inch (2.5 centimetres) long. He said the teams had "put together a very simple plan with good safety precautions and mitigations of any hazards that will allow a crewmember to go out and remove those two gap fillers."
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  #45 (permalink)  
Old 02-August-2005, 02:57 PM
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Part of the problem is that this is the most closely scrutinized shuttle ever. Things they didn't even know about on previous missions are becoming causes of concern on this one, like the gap fillers. For all we know there might have been extended gap fillers on every mission prior to this one, but this one was the only one inspected closely enough to find them.

I think that trying the space walk to fix them is a good idea, in any case. Someday they might really need to do this, so this will be a good rehearsal.
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  #46 (permalink)  
Old 02-August-2005, 04:13 PM
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So what is this "extended gap filler"? Was it something they did, or already there when they launched?
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  #47 (permalink)  
Old 02-August-2005, 05:09 PM
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What was the filler used for?

If it is removed, will its absence be just as much as a threat?
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  #48 (permalink)  
Old 02-August-2005, 06:27 PM
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The filler is a ceramic material that fills gaps between tiles. Removing it is not expected to pose any problems at all.

The only problem with it protruding is that it can disrupt the air flow over the surface during reentry, leading to local hot spots. It has occurred before; the temperature rose from 2300 to an estimated 2800 degrees in a small area. (Sorry, I don't know which orbiter/mission this occurred on.)
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  #49 (permalink)  
Old 15-October-2005, 02:49 PM
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NASA delivers findings on shuttle foam flaws

http://www.msnbc.msn.com/id/9698599/

Inadequate methods of applying and repairing foam on the space shuttle’s fuel tank probably contributed to the dangerous loss of a chunk of the insulation during Discovery’s launch two and a half months ago, a NASA investigation team concluded Friday.
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  #50 (permalink)  
Old 18-October-2005, 02:54 AM
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Quote:
Originally Posted by Jens
I remember reading something a while back about the possibility of taking refuge in the ISS. One question I have is, I think that the ISS has only one docking module, so they couldn't have two shuttles at once. What would they do with the Discovery if another shuttle comes to get them? I think it would be dangerous to "ditch" it, because it has a heat shield, after all, and what would happen if it survived reentry? Or would it be possible to try to bring it back on autopilot?
Ahhh... The old chicken, wolf, and sack of grain trick! You need to cross a river in a canoe, toting a chicken, a wolf, and a sack of grain. While you can ride herd on this mob going to and from the river, you can't while paddling the canoe, and can take onl