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Space Shuttles almost Ready to Re-Launch
stagmeister writes "CNN and Space.com are reporting that the Return to Flight Task Group, the overseeing committee that determines when the Space Shuttles can go back into space, has reported that the only items blocking the Shuttles are issues 'related to tank debris, orbiter hardening and tile repair.' They plan to re-meet in later this month to finalize their decision. However, 'NASA has made clear it intends to resume shuttle flights with the repair capabilities it has in hand without knowing for sure whether they would work in an emergency.' Would you want your children flying a space shuttle that hasn't been properly beta-tested?"
Why exactly isn't Mars that interesting anymore? In the past year, we have discovered that the planet was once covered in liquid water and could have supported life. We have two rovers there now, a few orbiters, and the ESA's Mars Express is about to start their radar mapping of the subsurface to see if there are any large aquifers present. If there is an abundance of water, human exploration and settlement will be that much easier. And as for getting to a planet, we've been going to them for the past thirty years. Cassini is in the Saturn system right now. The only difference between that and sending humans is a larger spacecraft, life support systems, and more fuel.
Hi - this whole safety mania regarding the space shuttle is silly. Yes, it is tragic that two crews have died so far, but lets face it - when traveling in those atmospheric conditions at those speeds and temperature extremes there will always be a risk, even if NASA managers are under pressure to be able to claim it is now entirely safe.
I mean, there are terrible airplane crashes every year, but do we shut down all commercial airflight until we can make it certain that flying has no risk?
On the flip side, we should do more to acknowledge the risks those space shuttle crews take every time they go up for even a "routine" mission.
TWR
It seemed fitting ...
Ignore the "p2p is theft" trolls, they're just uninformed
"the shuttle is too dangerous to operate"
Considering that we've only lost about 1 in 50 shuttles, I'd say its an extremely safe machine for what it does. The losses of ships in the early settling of the new world were far greater than 1 in 50. If our ancestors had felt 1 in 50 was too dangerous, the new world would never have been found.
If the shuttle were designed to provide a one way trip to orbit, I'd bet you could find plenty of takers.
The space shuttle program was ruined in its early days by too many government/military/nasa requirements, in short they wanted it to be a "jack of all trades", but because most of the shuttles functionality and specifications are rarely used, it turned out to be "a master of none" because of all the bloat. each flight costs in the order of $500 million rather than initial projections of $10 to $20 million!
;)
The Crew Exploration Vehicle appears to be on the right track, just as the shuttle concept was, lets just hope they dont make the same mistakes again! oh well, if they mess this one up too we can always look forward to the future European EADS Phoenix reusable launch vehicle!
http://en.wikipedia.org/wiki/Space_shuttle How a good concept turns into bad reality
http://en.wikipedia.org/wiki/EADS_Phoenix What the shuttle should have been. Leave it up to the Europeans to get it right!
Oh fuck off. The astronauts know damned well what they are getting into... certainly better than you with your irrelevant software analogy.
Issues related to. The bipod foam, which caused the Columbia accident, has been eliminated. You're never going to be able to eliminate all tank debris. The OBSS is a done deal, but I think they're having some problems with work stabilization, that is, having an astronaut actually work on tiles and not send himself flying all over the place. They've installed sensors in the wing leading edges that will be able to sense an impact. So it's not like they've just been sitting on their thumbs this whole time.
Mix the failings of Usenet with the shortcomings of the World Wide Web and the result is slashdot.
That's unfair. You're must be counting unmanned Soyuz launches toward the total to get the 2% number; the shuttle only does manned work (we launch our unmanned payloads on other craft). All of the unmanned Soyuz failures don't contribute to your count - and there have been a lot on this "less brittle" craft, as you call it (as recently as 2002, where it ended in a firey explosion right after launch). You only mention the manned failures because it makes your side look better; the failures being on unmanned craft, however, was just a coincidence. By the way, that 2002 launch? It killed a soldier on the ground, who undoubtedly wasn't included in your count, in addition to wounding 8 (a mile away from the explosion, at that).
Even if you're counting unmanned launches, though, your numbers still don't make sense. Please elaborate. There have been far more than 4.5 astronauts killed per launch (and what's up with the "%"?), because 2% of shuttle launches have ended in casualties, and each carried 7 astronauts. There have been ~1600 Soyuz launches, but little over a hundred manned launches, of which two involved fatalities, one with one death and one with three deaths. Your numbers, quite simply, make no sense. By the way - if you want to count total casualties of the Soyuz program, you need to add in the 50 technicians killed by an explosion of a Soyuz booster on the pad on March 18th, 1980. It's kind of ironic to think of it, but when you factor in ground crew deaths, even a mostly unmanned (and when manned, minimally manned) rocket like Soyuz could even have a higher death toll than the Shuttle on a per-flight basis, even with 1600 flights (it's hard to say for sure, with Soviet secrecy)
And if you want to talk about Soyuz's abort modes, you better talk about miracles. Remember Soyuz 18a? The crew went through a bloody 21.3g, and stopped just short of falling off a cliff. One person's internal injuries were so bad he never flew again. And even its normal operation can be disastrous - the much maligned "land via wings" approach of the shuttle prevented things happening to it like Soyuz 23, which broke through the surface of a frozen lake and nearly drowned its cosmonauts.
"This wallpaper is killing me. One of us has got to go." -- Oscar Wilde on his deathbed
some kind of foam/coating which disapated heat like a madman
:P
It did not. It was an insulator, not a dissipator (and there are much better insulators out there). There is a huge difference. On the skin of your craft, you must radiate the heat away; there is no concievable way that you could simply insulate from the orbital energy that you build up.
Shuttle tiles are still the best thermal radiators in existence. The reason is that they use a ceramic which is a good radiator on its own, and have it be made of fine threads in a very porous style so that it has a huge surface area.
this sentence is missing something
Yeah, I noticed that after I posted. It should have continued "signed off as well".
still only on the first gen of a partially re-usable orbital launcher
Well, it has changed a lot since its original form, but yes. However, look at the development cost of the shuttle in modern dollars. Few military projects have that sort of budget (although a few do...). Then look at how much money the US military gets in comparison to NASA (a very sad fact, in my opinion). It's no real surprise
"This wallpaper is killing me. One of us has got to go." -- Oscar Wilde on his deathbed