Panel Challenges NASA Over Shuttle Safety 266
Uttini writes "NASA skipped some shuttle safety improvements as it tried to meet unrealistic launch dates for the first flight since the Columbia tragedy, some members of an oversight panel said in a scathing critique. Poor leadership also made shuttle Discovery's return to space more complicated, expensive and prolonged than it needed to be."
Hey (Score:5, Insightful)
They did what they with what they had; the government keeps cutting nasa funding, and THAT is what lead to columbia -- too little money, too much to do.
Re:Hey (Score:3, Interesting)
Re:Hey (Score:2, Insightful)
That or the space shuttle is inherrently flawed. Let's scrap the shuttle and make something better, before the next crew dies.
Re:Hey (Score:5, Insightful)
That or the space shuttle is inherrently flawed. Let's scrap the shuttle and make something better, before the next crew dies.
The shuttle may be "flawed" as you put it. Or maybe spaceflight is just dangerous? Do we really have reason to believe the next generation craft is going to be safer? If so, how much safer? Life is risky you know. Hell, we can hardly build a bridge or a skyscraper without SOMEONE dying.
There is one thing that's not disputed, and that is that the shuttle flights are way too expensive. The shuttle IS set to be scrapped, but we have to complete the space station before that can happen. For the moment the shuttle serves a purpose that can't be quickly replaced.
I think they should be doing exactly what they are, and that is get the damn ISS built, then scrap the shuttle since it's purpose will have been served.
Re:Hey (Score:3, Interesting)
Re:Hey (Score:3, Insightful)
It may not be perfect, but it's what we've got. The shuttle certainly isn't perfect, but it's what we've got right now. It's not like the political climate that produced these imperfect be
Re:Hey (Score:2)
First problem ISS does very little to progress dealing with radiation exposur which is probably the biggest problem on a Mars mission.
Second, after a decades on Mir, Skylab or ISS has anyone developed a real solution to zero G issues there. Unless you know something I don't the one big answer is its a good idea to exercise a lot. Not sure that conclusion is worth $160 billion. Russians have already established endurance records long enough t
Re:Hey (Score:2, Troll)
":There's one thing being developed at the space station that is terribly important for manned space flight: a radiation shield"
So they are developing a "radiation shield" on the space station? I'm looking forward to reading the papers on this topic.
"When we went to the Moon, how big a ship we could take and how long we could stay were limited by exposure to the van allen belts."
And what L shell is the moon at? Like 57 or something? Radiation is certainly an issue at L shel
Re:Hey (Score:5, Informative)
L1 is a point between two massive bodies orbiting around a common center of mass. There is one between the Earth and the Sun. There is also one between the Earth and the Moon.
http://en.wikipedia.org/wiki/Lagrange_point [wikipedia.org]
Re:Hey (Score:2)
Its the cosmic radiation thats hard. Shielding against that takes a lot of mass.
Re:Hey (Score:3, Interesting)
A lot of people tend to assume that space travel is inherently dangerous, but that isn't necessarily true. Just look at the Russian Soyuz, which hasn't had a fatality since 1971.
The shuttle IS set to be scrapped, but we have to complete the space station before that can happen.
Why? There's no way that the benefit we'll ge
Re:Hey (Score:3, Informative)
Just look at the Russian Soyuz, which hasn't had a fatality since 1971.
And the Soyuz program has had about 60 manned launches compared to a little more than 100 shuttle launches. The shuttle has been lost twice, and Soyuz once. Sounds like about the same safety record to me. (which is completely igoring the fact that Soyuz has been redesigned a couple times during that period, so we have even less data on it).
Re:Hey (Score:5, Informative)
"But the more important question is whether the return to be obtained from the use of ISS to support exploration objectives is worth the money yet to be invested in its completion. The nation, through the NASA budget, plans to allocate $32 B to ISS (including ISS transport) through 2016, and another $28 B to shuttle operations through 2011. This total of $60 B is significantly higher than NASA's current allocation for human lunar return. It is beyond reason to believe that ISS can help to fulfill any objective, or set of objectives, for space exploration that would be worth the $60 B remaining to be invested in the program."
"Equally important is the delay in pursuing the President's vision. Respecting present budget constraints, we return to the moon in 2020, thus accomplishing in 16 years what it required eight years to achieve in the 1960s. This is not because the task is so much more difficult, or because we are today so much less capable than our predecessors, but because we do not actually begin work on the task until 2011. I do not need to point out to this body the political pitfalls endemic to such a plan."
"I, and others, have elsewhere advocated that the shuttle should be returned to flight and the ISS brought to completion, if only because the program's two-decade advocacy by the United States and commitment to its international partners should not be cavalierly abandoned. But, if there is no additional money to be allocated to space exploration, this position becomes increasingly difficult to justify. It is worth asking whether our international partners might judge the issue similarly."
Re:Hey (Score:2)
Like NASA refraining from referring to the ISS as "The NASA Space Station Project" in press releases?
That'd be a nice touch, almost respectful of the contribution made by outfits other than NASA...
Re:Hey (Score:2, Insightful)
Yes it can be dangerous, just like airflight is dangerous. Airflight is a lot safer and spaceflight can be made similarly safe as well.
One solution is to simply use Russian rockets for people, and dumb cargo rockets for everything else.
Re:Hey (Score:2)
Yes it can be dangerous, just like airflight is dangerous. Airflight is a lot safer and spaceflight can be made similarly safe as well.
And how long did it take to make airflight safe? The first flight took place in a hot air ballon in 1783. It took until 1903 to even get to a primitive airplane from the Wright brothers. With spaceflight, we're not a hell of a long way past the hot air balloon stage.
Re:Hey (Score:2, Interesting)
No amount of money is going to change the fact that anything going wrong with any part of the shuttle is going to cascade and damage something else that is sitting right next to it.
We don't have to complete the space station either. We can let it fall into the ocean. The world won't end if that happens, and we can get on to REAL exploration instead. Or, we could finish it with differ
Re:Hey (Score:2)
We don't have to complete the space station either. We can let it fall into the ocean. The world won't end if that happens, and we can get on to REAL exploration instea
No, the world won't end. But I'd give a very good chance that taxpayer support for Nasa would take a huge nosedive if all the money thrown into the ISS was all for nothing. The same thing is probbably true for other taxpayers in other countries funding the ISS as well.
No amount of money is going to change the fact that anything going wrong
Re:Hey (Score:3, Interesting)
I think its more like 114 flights.
Do you work for NASA? They said the same thing and used it to rationalize doing nothing about it until Columbia. They were really panicky about it when they saw tile damage in all the early launches, but hey they landed OK. After a while since they kept getting away with it they made the assumption it was OK. They were wrong. There is a scathing indictment of your attitude by Feynman [fotuva.org].
Basically NASA was shooting craps wit
Re:Hey (Score:3, Interesting)
The Russians just announced the Kliper launch targets, 2011 first unmanned flight and 2012 first manned flight. It will carry six so if it works its the best bet to actually fully man the ISS. It can't be over 3 people now due to the emergency lifeboat limit which is currently a Soyuz. At a 3 man crew very little research or manufacturing can be done.
CRX is essentially Burt Rutan's LEO successor to SpaceShipOne in partnership with Trans
Re:Hey (Score:2)
Don't you mean the CXV?
By the way, there's a rather good article over at Wired which talks about the CXV a little. It includes photos and video of their recent full-scale capsule drop test and water landing:
http://wired.com/news/space/0,2697,68528,00.html?t w=wn_tophead_1 [wired.com]
There are some additional photos and videos here [transformspace.com].
Re:Hey (Score:3, Insightful)
Yes, thanks. Acronym fatigue.
"It includes photos and video of their recent full-scale capsule drop test and water landing:"
Thats the thing I like about Rutan most. He bends metal and tries stuff instead of producing endless studies, artists conceptions and expendive half hour animations like NASA and its behemoth contractors. If you watch NASA TV they seem to have a penchant for expensive CG videos about how cool it would be if they did all this stuff. They aren't going to actua
Re:Hey (Score:2)
Re:Hey (Score:2)
Throw up their hands and say, "Yeah, we know that the last flight was succesful and we have tons of modules for the ISS completed and awaiting launch, but we feel like scrapping the only vehicle capable of installing them and just letting them rust. Gotta make sure that astronauts never die, and the only way to do that is to never fly."
Re:Hey (Score:2)
Throw up their hands and say, "Yeah, we know that the last flight was succesful and we have tons of modules for the ISS completed and awaiting launch, but we feel like scrapping the only vehicle capable of installing them and just letting them rust. Gotta make sure that astronauts never die, and the only way to do that is to never fly."
I would expect them
Re:Hey (Score:2)
You don't scrap something then decide on how to make a new one. You'll just end up with the same thing, or something different for no good reason.
$1 Billion and No Solution (Score:3, Insightful)
The failure of Columbia was not a failure of engineering. Successful rocket launches occur often in Japan, Europe, and Florida.
The failure of Columbia was a failure of management. Managers wanting to show results to their superiors ignored the "grunt" engineers when they warned
Re:$1 Billion and No Solution (Score:3, Insightful)
Even the most advanced cargo rockets we have now cannot carry something as large as the shuttle. Let alone people AND cargo.
Someone else mentioned that russia hasnt had a fatality since 1971, but all the soyuz missions do is launch people (or supplies), they dont launch both, with a nice big arm, and a huge bay for storing large things that simply will not fit anywhere else.
Get a clue people, the shuttle has no suitabl
Re:$1 Billion and No Solution (Score:3, Insightful)
False. The chunk of foam that had everyone concerned came from an area that has not been observed to shed foam since 1982. None of the areas that were fixed shed any foam.
Re:Hey (Score:4, Informative)
Graph on budget [wikipedia.org]
It is true, however, that priorities have been shifting away from the shuttle program.
Re:Hey (Score:2)
Re:Hey (Score:2, Interesting)
When a single ISS beam costs $600 million, you gotta ask what they're spending their cash on.
Re:Hey (Score:3, Insightful)
Re:Hey (Score:3, Interesting)
http://www.spacedaily.com/news/shuttle-02d.html [spacedaily.com]
I doubt you are a engineer, let alone an aerospace engineer.
I'm not an aerospace engineer, but I am an engineer. I'm an engineer who believes in redundant systems and simple solutions over "space hardened" systems. There are lots of examples of guys building working systems on shoestring budgets that last well beyond their engineered lifetimes. Check out http://www.hypocrites.com/article2897.html [hypocrites.com] for
New tank design? (Score:3, Interesting)
I know it would add weight, but couldn't they have inner chambers to hold the fuel that are separated from the outer wall by a vacuum layer (like a thermos bottle)?
I think the weight difference would be offset by a safety factor -- namely less ice build up on the foam.
Re:New tank design? (Score:2)
No I didn't -- read your own post. You QUOTE ME as saying "I THINK" and then you want me to show my math? What metric can I give you?
What I THINK: less ice on foam = less danger from falling foam.
Re:Hey (Score:2)
That's a common myth, examination of the inflation adjusted figures show that NASA's budget has been flat since Apollo was cancelled.
Every year they threaten to cut the budget, but they always work it out in the end.
Teleporter? (Score:3, Funny)
You can get all sorts of things over the wireless internet these days, music, movies, all kinds of software. Since dna is just information too, it seems to me that it shouldn't be too hard to figure out how to broadcast people and things from one place to another. NASA should get to work on this instead of silly space shuttles.
Re:Teleporter? (Score:5, Funny)
Re:Teleporter? (Score:2)
I can picture this plan in action now:
"Hey Frank, weren't you supposed to transport Henderson to our base today? So far, all we've got is 200 pounds of chunky salsa, and it isn't even in jars!"
Re:Teleporter? (Score:2)
Sure. We'll get right on that. How does next Tuesday sound?
Oh...we'll need a volunteer for the first test. You up for it?
You obviously haven't read Larry Niven (Score:2)
There are substantial problems with teleporter technology, ESPECIALLY when going from Earth's surface to low Earth orbit - that can create monster problems. I forget what story that was from (I enjoy Niven's hard SF, he takes into consideration a lot of things you might not think of), but I'd rather work on the foam problem than mess with stuff
What if there had been no foam loss? (Score:2, Informative)
The return-to-flight mission would have been declared an outstanding success. Regular launches would have resumed. We would be back on track again.
Now we have to wait another seven months or more because little pieces of crap still keep falling off the fuel tank.
This is so completely pathetic.
Re:What if there had been no foam loss? (Score:5, Insightful)
>>>right in view of the camera?
Dude.... they are using HUNDREDS of cameras now.
It didn't fall right in view of '*the* camera'. They just relesed the best view to show what happened.
>>The return-to-flight mission would have been
>>declared an outstanding success. Regular
>>launches would have resumed. We would be back
>>on track again.
So if you don't see the problem it doesn't exist? Sounds like you're NASA material!
Re:What if there had been no foam loss? (Score:2)
None of the other ground or chase-plane-based cameras would have caught the foam loss at the altitude it ocurred. In addition, there was only one rocketcam on the external tank and so foam loss on the far side of the orbiter, the side that got Columbia, would not have been seen. I also doubt the astronauts were able to see the entire external tank after separation and could easily have misse
Re:What if there had been no foam loss? (Score:2)
Re:What if there had been no foam loss? (Score:2)
The return-to-flight mission would have been declared an outstanding success. Regular launches would have resumed. We would be back on track again.
Until the next Shuttle vapourised...
If I can't see it , it can't hurt me!
Re:What if there had been no foam loss? (Score:2)
Routine is not necessarily so great... (Score:4, Insightful)
It is through our mistakes that we learn. Anybody willing to go up in a space shuttle knows they run a strong risk of death. Personally, I'd be excited to have the chance to risk my life in that noble work. Instead, for the sake of those who love me (okay, and for lack of ability or opportunity), I toil with my daily work, contributing my bit to the economy, so indirectly supporting the space program.
Re:Routine is not necessarily so great... (Score:2)
Exactly. Back then, people knew the risks, but did the best they could without being overly cautious, and look at the results! They made a couple of high achievements... We're stopping ourselves from proceeding on.
Let NASA make up their own minds about risk (Score:4, Insightful)
People seem to forget that space travel is freaking dangerous. The whole concept of a lit rocket attached to your ass is probably never going to be as safe as walking to the store.
At some point, NASA will do as much as can be reasonably be expected and allow a volunteer to climb in the shuttle and hope for the best.
People who can, do. People who can't, sit on committees and complain.
Those people need to get out of the way and let NASA do their job.
First off, these people ARE NASA... (Score:4, Insightful)
In light of that, I can see no reason for NASA's own safety panel to NOT issue these kinds of complaints. That is what they are paid to do - look at what is going wrong and SAY something. They looked, and they spoke.
Now, as for anyone else - you've a point. Outsiders don't have the information needed to make the kinds of observations needed. Well, to an extent. There were several teams that had offered NASA solutions that would have guaranteed zero foam loss, but received no feedback from NASA. Those teams went public and I can understand that. Again, that's their area of expertise.
Now, do I think NASA should have chosen those solutions? I don't know. The safety panel didn't mention them, so maybe there were good reasons for declining. On the other hand, as a public organization, NASA might help themselves (and us) a lot by saying WHY those solutions were declined.
There's Dumb Risk versus Unavoidable Risk. (Score:5, Insightful)
Avoidable risk: doing stupid things in your design to endanger lives.
The laws of physics, and many realities of engineering, are exactly the same today as they were in 1960.
For instance: what is the right place to locate the humans?
On the very top, because then they are the furthest away from the really dangerous bits. And delicate stuff needed for re-entry can be shielded and be far away from the immensely violent launch and debris and whatever is coming out of the ground and shaken off the rocket.
Corollary: where do you put the fuel tanks? On the rear end, dummy.
There's lots of reasons the Saturn V looked like it does. And how it looks like a whole lot of other rockets, except the shuttle. Ain't a coincidence.
These problems were known and solved, and the shuttle un-solved them.
Obviously, we need some more Nazi rocket scientists.
So a plane which can fly back is supposed to be 'cost effective'. But why does it have to be so big? You generally take big fat cargos up and then work on them. So take them in a big fucking can, which sits UNDER your small, human sized space plane which re-enters and holds the people, tools and control bits. You throw away the can. And under the cargo, you put the fat ass rockets.
You make them as cheap as possible, with metal-wrangling shipbuilding level technology, not ultra-high tech fancy pants stuff. That stuff is use 'once or twice', if it's still OK when you get it back off the ocean. Only the engines are the big monetary per-launch loss, but even now they have big solid rocket boosters which are one-use only.
They should make a big Saturn V style launcher with cheap ass solids strapped around the bottom for the initial heavy lift, like the Soyuz, then a cheap ass liquid booster module. Then a cargo can, and on top, the orbital and re-entry vehicle.
And also put that doohickey on the very top like with the Saturn V. What's it for? It's a little escape pod rocket and parachute to get the people the fuck away from the big explosive bits if something really bad happens.
If the Challenger worked like that, the crew might have been able to walk away, depending on circumstances.
Re:There's Dumb Risk versus Unavoidable Risk. (Score:3, Interesting)
I know this is rhetorical, but it ended up so big because of DOD requirements to win their approval and participation. They need a big cargo capability AND worse they demanded a 1000+ mile cross range landing capability to launch from Vandenburgh, do 1 polar orbit and land back at Vandenburgh. To do this the Shuttle wings had to be dramatically enlarged, which led to the whole thing getting much bigger. Since the $6 billion launch pad at Vandenburgh was abandoned after
Re:There's Dumb Risk versus Unavoidable Risk. (Score:2)
The shuttle is NOT just a launch vehicle. It is the only vehicle capable of RETURNING a payload from orbit. It is also an orbi
Re:There's Dumb Risk versus Unavoidable Risk. (Score:2)
No.
It may be the only vehicle capable of returning LARGE payloads from orbit, but the Apollo CM did just fine at returning hundreds of pounds of rocks that it didn't bring up with it in the first place. Soyuz doesn't do too shabby a job either.
And of the hundred-plus missions Shuttle has flown, how many returned a big payload? Not counting Spacelab missions -- and wouldn't it have made more sense to leave that module up there as part of a sp
Re:There's Dumb Risk versus Unavoidable Risk. (Score:4, Interesting)
As for "make a big Saturn V style launcher with cheap ass solids strapped around the bottom for the initial heavy lift", there's no need for the solids. A Saturn V could put the equivalent of four full Shuttle payloads into LEO (Low Earth Orbit) in one shot, or a complete Shuttle Orbiter. Or, for that matter, Skylab. Or a fully fueled S-IVB stage, LM, and CSM, all set for a trip to the Moon. That thing (the SV) had 7.5 million pounds of liftoff thrust, the Shuttle has about 5.
The original plan was only for Shuttle to replace medium-lift launchers, retaining the Delta at the low end and Saturn V at the high end. NASA quickly scrapped that plan (along with the Saturn V stacking capability in the VAB and the Saturn V launch towers) when they realized that the existance of a working manned and heavy lift capability (Apollo-Saturn) meant it would be politically easy to cancel Shuttle if (when) that hit budget overruns.
Re:There's Dumb Risk versus Unavoidable Risk. (Score:2)
I just love the way that, in order to 'escape' from a space shuttle, you'd have to do *something* like:
0. Ensure that your t-shirt is on straight.
1. Unbuckle from your seat.
2. Get out of your seat and 'walk' down the aisle being careful to mind the other escapees.
3. Go to the hatch, open it and clamber out.
Contrasting to the Soyuz where you do something like:
0. Ensure that your space suit helmet is p
Re:Let NASA make up their own minds about risk (Score:2)
It would be refreshing for an oversight committee's report, just once, to make affirmative use of the phrase, "acceptable risk".
Re:Let NASA make up their own minds about risk (Score:2)
It will be dangerous for the first explorers, but when (and I mean when) space travel gets big, you are going to need failure rates much much less than 2 out of every 114 flights.
Progress towards safety is justified. The real question is, we landed on the moon a LONG time ago. Why haven't we come up with a safer solution by now?
There is alot of politics in nasa (Score:2)
Nasa is a mess
Re:There is alot of politics in nasa (Score:2, Informative)
"he is willing to oust as many as 50 senior managers in a housecleaning rivaling the purge after the 1986 Challenger explosion."
Pretty harsh...
*Grumble* (Score:4, Insightful)
Kinda makes you even angrier about the countless, 600 million dollar "We're growing some more fucking crystals, dammit" missions we've had for the past 20 years. Talk about time wasted. Let's not even get started on how the constant redesigns of the ISS have left it borderline useless (and how the costs of the redesigns and the station we have now equal the cost of the original proposal)
Old vehicles are trouble no matter what type! (Score:3, Insightful)
How many of you drive old cars, trucks, vans, or SUV's that say they are a joy to drive and run like the day they were brand new? No one would say that. Why NASA is using a shuttle that is 20 years old is beyond me. When I was 16 my parents gave me the old family '81 Datsun 310. I was grateful and even a bit excited to have it. I even thought I was "the man" because I had a car and most of my friends didn't, but it was a 13 year old car by the time I got it and had plenty of quirks. It had more than 300K miles on it when I got it. It ran pretty well and didn't cause me any major malfunctions, (Other than a clutch) but as soon as I could afford it I got a newer car! The car made it a year or two for my brother before giving up. I think it finally died in '97 with well over 400K miles on it. Those Damn shuttles have TONS more miles on them than that stupid car. Plus they are in a tad more hostile condition than the local freeways and roads. It baffles me that they are still willing to send astronauts up in them? Beyond that, I'm just as perplexed by the fact that there are astronauts blinded by the "I'm going to be in a text book one day" mentality that they are willing to ride up in the damn thing! Just plain stupidity if you asked me. It's time to produce something new with new seals, gaskets, and gap filler, and maybe a satelite dish. (Weather shouldn't affect their picture up there being so close to the satelites themselves.) If they plan on putting a man on Mars they've got a long way to go with those shitty shuttles they're still nursing along.
I mean, how many of you would really rather be sitting at say a 20 year old computer right now versus the one you're on reading /. on at this moment? I mean c'mon, be honest with yourself!
-- My Rant is now over, we'll return you to your regularly scheduled blah.
Re:Old vehicles are trouble no matter what type! (Score:2)
Re:Old vehicles are trouble no matter what type! (Score:2)
I have a friend with a Model-T Ford who says exactly that. In fact it was his first car.
Self contradictory headling? (Score:2)
Oh, so they should have taken longer, right? And been more thorough?
Poor leadership also made shuttle Discovery's return to space more complicated, expensive and prolonged than it needed to be."
Oh, so they did too much and spent too much money and it should have taken less time, right?
I'm confused -- it se
Is environmentally-friendly foam flawed? (Score:3, Interesting)
Re:Is environmentally-friendly foam flawed? (Score:3, Interesting)
Anyway, apparently the hand-applied foam -- in the areas where we've seen big chunks coming off -- still uses the old CFC formula. The enviro-friendly foam is only used in the automated application on the large smooth areas of the tank.
Can the Shuttle Fly Itself? (Score:4, Interesting)
We've spent God knows how many hundreds of millions of dollars trying to make the shuttle safe enough for human spaceflight. Maybe that just isn't going to happen. Not with the shuttle, not with the fact that we're looking at band-aids and not limb replacement solutions here.
So, what would it take to make the shuttle run on autopilot? Rockets fly to space all the time, Russian Progress vehicles even dock with the space station, although I'm not sure if they do it alone or via teleoperation.
Either way, why not invest a certain amount of money in an autopilot (or teleoperation) system so the shuttle could fly up, dock with the station, and then could be entered by ISS crew who could use the shuttle's robotic arm, etc., to set up the next component of the station. If manpower's an issue (and with 2 on board the station, it probably is) you could do it when there was a crew change and there were more people at the station, or you could really, really hurry with the CEV and wait until you could have enough people at the station to do the job.
Or, for that matter, you could just HOLD on station construction until the CEV was ready and you could squeeze enough people into the station to make this work.
This would solve the main issue: that the shuttle isn't safe for humans due primarily to reentry problems. In the future, you could even have the CEV dock with an in-space, unmanned shuttle and complete shuttle missions, such as a Hubble servicing mission, then undock, let the shuttle make its way home (or, in an unfortunate, but no longer life-threatening event, crash) and the CEV, with crew, would return to earth safely (as I can't recall a SINGLE EVENT where a capsule has burned up and people have died in reentry.)
Anybody know why this hasn't been suggested, at all? I think it may be cheaper and faster, certainly if we'd done this after the Columbia disaster, but even fi its not, it allows us to keep on using the shuttle for YEARS relatively cheaply.
Tim
The Russian Shuttle already can... (Score:2)
Check thy wiki, foo!
Re:Can the Shuttle Fly Itself? (Score:3, Informative)
Re:Can the Shuttle Fly Itself? (Score:3, Informative)
or, in an unfortunate, but no longer life-threatening event, crash
It'd still be life-threatening to people on the ground. Not much, and not any more than a manned entry, but there would be a tiny risk.
I can't recall a SINGLE EVENT where a capsule has burned up and people have died in reentry
The Soviets had a capsule decompression on reentry. Not burning up, but the thr
Re:Can the Shuttle Fly Itself? (Score:3, Interesting)
Now maybe you could load one profile in for launch and then the ISS crew could load another to reenter. If the mission has to abort before it docks with the ISS you would need to insure the computers have the program for the abort and
Taking Up Space (Score:2)
Anything with tits or wheels (Score:4, Funny)
My dream job... (Score:4, Funny)
Just Go Back to the Pre-1999 foam formula (Score:3, Informative)
So what the hell have they been doing for the last 2 1/2 years? They're still using the non-freon based foam for environmental reasons even though they have an EPA exclusion to use freon. They should have just gone back to the old foam formula and been back up to flight status in 6 to 12 months. As it is they essentially did nothing to improve the problem in 2 1/2 years because for some reason I can't fathom they won't go back the formula they know works, but instead slap on a bunch of other remediation fixes that didn't work.
Seriously someone should loose their job over this, someone high up that should have known to go back to the old formula which they've know since 1999 worked better.
Am I missing something? It would seem like a no brainer to go back to the freon formula. Especially since they fleet is on the fast track to be retired anyway -- then no more freon anyway.
Re:Just Go Back to the Pre-1999 foam formula (Score:3, Interesting)
Please, do a little research.
Learn the difference between BX-250 and BX-265. Discover for yourself what foam compound was used for ET-93.
Here. Maybe this will help... [nasa.gov]
As A Matter Of Fact I Did Google (Score:3, Informative)
http://news.google.com/news?hl=en&ned=us&q=freon+ s huttle+foam+nasa&btnG=Search+News [google.com]
From the first site returned (and similar to several others) .htm [spiked-online.com]
http://www.spiked-online.com/Articles/0000000CAD09
Re:As A Matter Of Fact I Did Google (Score:4, Insightful)
1. Because most "news sites" simply regurgitate (or flat-out copy) stories from other "news sites". The amount of real investigative journalism is approaching zero; rumor and hearsay become self-perpetuating.
2. Because there is a major ideological incentive for environmental controls to be "the cause" of the Columbia disaster. There is a large consumer population that is eager to hear confirmation of what they already knew--that the big bad EPA causes more problems than it solves. Providing that population with the product they're looking for sells more papers and leads to a satisfied "told you so" and a happy consumer.
Re:You ignore facts (Score:3, Insightful)
No, it isn't. It's a direct reply to your question, which was, "why do so many news sources report t
Well, What Do We Need? (Score:3, Insightful)
In soviet russia. (Score:3, Funny)
Re:NASA needs a shake-up (Score:2)
Re:NASA needs a shake-up (Score:5, Insightful)
I was contracting for a Rockwell division the day the Challenger blew up, and 20 minutes after it went down, we had an office pool going: "How long will it take them to figure out that it was caused by some middle-manager (somewhere in the supply chain) screaming "Whaddaya mean I can't ship on schedule??!!??""
This is a shake up (Score:4, Interesting)
Re:Can the government spin it off. (Score:2)
Even with tourism, and a full shuttle every time, it would lose money. And those putting payloads into orbit already have cheaper to operate rockets.
The Chinese may buy the Space Shuttle infastructure to show up the US
ya, sure, ya betcha, then (Score:2)
on the plus side, nasa made it possible, period.
on the negative side, we're kind of in "Perils of Pauline" mode with the present systems and support... AM news cycle, everything's fine. noon news cycle, "we have a problem." evening news cycle, folks are scurrying around like bugs chasing issues. lather, rinse, repeat throughout the flight of
Re:Can the government spin it off. (Score:3, Informative)
Oh, really?
Let's take a look at the methodology used by the FAA AND the aircraft industry to weigh the need for new safety systems.
A commercial aircraft crashes. The FAA and the aircraft manufacturer determine that a new safety device will be required that costs $100 Million USD in R&D, $5 Million USD per commercial aircraft installed, and $1 Million USD per aircraft for lifecycle m
Re:Panel Challenges NASA Over Shuttle Safety (Score:2)
You must be new here.
Around these parts, we call that "Quality Assurance".
Mess up again, and we're sending you for Vocabulary Training.
Re:Panel Challenges NASA Over Shuttle Safety (Score:2)
Re:Jump On The Bandwagon... (Score:2)
And would they have been wrong? When you say that something is unsafe, you're saying there's a significant unnecessary risk of someone being hurt or killed. If the supposedly unsafe thing happens and no one is hurt, that does not mean it was safe. If everything appears to have happened perfectly, that does not mean it was safe.
"Unsafe" can't be confirmed by someone being hurt (the risk might have been necessary) o
Re:Jump On The Bandwagon... (Score:2)
Nah... Just complaining about the critics. It's the only thing that
Re:Jump On The Bandwagon... (Score:2)
If astronauts are going to go to the moon and Mars in the near future, checking and fixing the outside of the ship is going to be routine. No matter how many cameras and sensors you put on the outside to monitor things, someone will have to go outside to fix it. The recent mission prove that we have capability to do that.
Re:Jump On The Bandwagon... (Score:2)
No.
Pete Conrad proved that 32 years -- thirty-two years! -- ago when he repaired Skylab, which had been damaged on launch.
I've always been impressed by Conrad and Bean's pinpoint landing of Apollo 12 within walking distance of Surveyor III -- which proved we could land on the Moon with sufficient accuracy to think about building lunar bases. I had the opportunity to chat with Pete for a couple of hour
Re:Jump On The Bandwagon... (Score:5, Insightful)
Re:Jump On The Bandwagon... (Score:2)
I heard a news report that said that gap fillers had been known to come loose in the past and no one worried about it too much.
Very true. But I think the thing that's more pertinent is that they've not had the ability to see when the gap fillers had come out. If you can't see there's a problem, you can't fix it.
The other risk is just the inherent risk of spacewalks. One paint chip going 30,000 mph hits an astronaut, and he's instantly dead.
Re:Management (Score:2)
Re:Management (Score:2)