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History-making rocket has success (kind of)
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mithridates



Joined: 03 Mar 2003
Location: President's office, Korean Space Agency

PostPosted: Tue Mar 20, 2007 8:58 pm    Post subject: History-making rocket has success (kind of) Reply with quote

Yay, I can go back to sleeping in the mornings. The Falcon 1 by SpaceX was successful on most of its objectives, even though it failed to reach orbit. It did reach space though and was much better than the first flight.

The thing that makes this rocket so important is that it costs its customers only $7 million per flight, as compared to $50~$100 million or so for most others, with the very cheapest coming in at $30 million if I remember correctly. So for sending stuff to space it's the equivalent of having your rent cut down to a fifth of what it once was. And thanks to that we're going to have a Malaysian company send up a satellite with them that they probably wouldn't have been able to consider if the price tag was that much higher.

I watched the launch online this morning and it was interesting seeing the first cancellation right at T-0, something most rockets can't do. The pressure was off by 1 psi. One guy apparently didn't know there was a mike next to him because you could hear some ranting about one motherf*cking psi for a few minutes.

http://www.msnbc.msn.com/id/17695361/
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mithridates



Joined: 03 Mar 2003
Location: President's office, Korean Space Agency

PostPosted: Tue Mar 20, 2007 9:02 pm    Post subject: Reply with quote






Quote:
While it wasn't a perfect launch event, SpaceX are rightly claiming success with the launch of their Falcon I vehicle.

The vehicle reached 300kms into space, before ending its second stage flight prematurely, due to a loss of telemetry and an issue with the vehicle's roll control. While that is still being evaluated, CEO Elon Musk noted the launch was a success, achieving 90 percent of its test objectives.

The drama of Monday's scrub with just over a minute remaining - due to a range source telemetry and land line issue - was nothing in comparison to what appeared to be a dramatic end to proceedings during Tuesday's attempt.

With the countdown proceeding all the way to the firing up of the Merlin engine, and with the countdown clock reaching T-0, the launch was aborted just as the Falcon I was expected to lift off the pad.

According to SpaceX, the last gasp abort was automatically caused by the main engine chamber pressure being 0.2 percent lower than the allowable preset limits.

With everyone expecting a scrub for the day, along with at least a 24 hour turnaround, SpaceX engineers decided on recycling for a launch just over an hour later. The stages were drained back of LOX and fuel to 50 percent, before picking up the countdown process once again.

Re-starting from a T-16 minute count, the Falcon I was prepared for a launch time of 1:10 am GMT. This time, SpaceX had good fortune on their side, as the count proceeded without issue.

Finally blasting off from its island launch pad, the vehicle rose majestically, as the Earth disappeared below it via the downward pointing camera on the rocket - the same view that showed the failure last March, leading to a one year stand-down.

No such problems this time, until what is still an unconfirmed issue at stage separation, where the first stage appeared to catch the second stage engine as it fell away.

The second stage still managed to keep flying until just prior to T+5 minutes, when oscillation was observed on the vehicle's camera, before slowing rolling - what at least appeared to be - off course, as the webcast video ended abruptly.

Musk did note that the second stage did shut off prematurely, and that the vehicle likely failed to make a full orbit.

'The things we were most concerned about were the first stage ignition and lift off, and the trajectory of the first stage, because that is the most significant portion of the atmosphere where you can have high winds, and potentially where you can have a structural problem,' said Musk in a post launch Q&A. 'No anomalies on the first stage.'

'Stage separation went very well,' he added, dismissing what may have been observed on the video. 'Both the stage separation and the fairing sep went flawlessly. Second stage ignition also went flawlessly.'

'We did see a roll control issue later in the second stage. That seems fairly straightforward to correct.'

Musk, who was still without full data from the launch in order to make the Q&A with reporters was still buoyant over the launch, which he claimed achieved 90 percent of the test objectives.

'I only just came from the command trailer, so it is a bit premature to say anything. We didn't achieve the desired orbit, but at this moment I do not know the state of the second stage. The high likelihood is that it re-entered before a full orbit. We reached the altitude of 300km, that's what I can say.

'The roll control caused the second stage engine to shut off prematurely. I would say we have retired about 90 percent of the risk associated with the rocket. This was a test launch, not a satellite launch.'

Now Musk and SpaceX can concentrate on making inroads into the launch business, which is an ambitious plan, involving a range of new vehicles, from unmanned to manned.

'It definitely could have gone a little better today, but we retired most of the risk associated with the rocket, and I think that is a success,' Musk noted.

'I would characterize this as a very good day for SpaceX,' he added. 'We successfully reached space, and really retired almost all the risk associated with the rocket. I feel extremely good about having successful satellite launches later this year.'
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Troll_Bait



Joined: 04 Jan 2006
Location: [T]eaching experience doesn't matter much. -Lee Young-chan (pictured)

PostPosted: Wed Mar 21, 2007 3:42 am    Post subject: Reply with quote

I love your threads on the Current Events forum.

"Three of these things
belong together.
Three of these things
are kind of the same.
But one of these things is doing its own thing.
Find out before my song is done.
And now my song is done."



a. Islam: The Threat Within
b. Multiculturalism is a failure
c. Not all terrorists are Muslim, BUT ...
d. Dramatically inexpensive rocket has successful test flight
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mindmetoo



Joined: 02 Feb 2004

PostPosted: Wed Mar 21, 2007 5:01 am    Post subject: Reply with quote

Troll_Bait wrote:
I love your threads on the Current Events forum.


Is that a complaint?
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mithridates



Joined: 03 Mar 2003
Location: President's office, Korean Space Agency

PostPosted: Wed Mar 21, 2007 8:34 am    Post subject: Reply with quote

Troll_Bait wrote:
I love your threads on the Current Events forum.


Thanks. I have an agenda too though: I'd like to see us colonize the inner Solar System. I dare say my threads are more important than the one about Anderson Cooper.

Check it out:

The first ill-fated flight in 2006:

http://www.youtube.com/watch?v=DY-lyoPP3go&mode=related&search=

The much less ill-fated flight this morning:

http://www.youtube.com/watch?v=7CwuIQ9d5D8

I don't think I mentioned it yet but this company is especially impressive because it was created by one of the founders of PayPal and something else that I don't remember. After earning hundreds of millions of dollars he decided instead of retiring young and sailing on boats and whatnot that he wanted to create a company to bring us one step closer to being a spacefaring civilization. So far everything has been straight out of his bank account.

Now that we're on the subject, here are two other impressive companies:

http://www.bigelowaerospace.com/ <--Bigelow Airspace, also funded by a guy that made his fortune elsewhere, this time in hotels. They specialize in habitat modules and have had one in space for quite some time now, their first prototype: http://en.wikipedia.org/wiki/Genesis_I

http://www.jpaerospace.com/ <-- this one has the smallest budget, though they carry out a large number of tests. Here's a good article on what they do:

http://www.msnbc.msn.com/id/5025388/

And of course Virgin Galactic:

http://www.virgingalactic.com/
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mithridates



Joined: 03 Mar 2003
Location: President's office, Korean Space Agency

PostPosted: Wed Mar 21, 2007 8:49 am    Post subject: Reply with quote

Here's some more perspective on why this can be considered a success:

Quote:
When the Delta 4 and Atlas V rockets were being introduced their manufacturers went out of their way to note how much of the design and systems were already flight proven. (the Delta 4 second stage was derived from the Delta III, the Atlas V used the Centaur upper stage and so on...) This points out how risky and difficult new rocket designs are to get working. The Ariane 5 also suffered failure on its first two launches (its development took 10 years and cost �7 billion).

To put this into perspective, SpaceX started with nothing and created an all new design - from the launch facilities to electronics and software and, of course, the hardware. The second launch failure, according to Musk, seems to be a simple control issue from a possible leak or roll control malfunction, while the riskiest and most difficult features worked and are now flight proven. Add to this the $100 million that the Delta 4 and the Atlas V got from the government for development, while the Falcon 1 was almost completely funded without government money, and SpaceX has done a remarkable thing. A quote from Musk about new designs: "I think they had something like 12 Atlas failures before the 13th one was success. To get this far on our second launch being an all-new rocket -- new main engine, new first stage, new second stage engine, new second stage, new fairing, new launch pad system, with so many new things -- to have gotten this far is great."


And here it is compared to some other launchers to show its size:



Last edited by mithridates on Wed Mar 21, 2007 9:23 am; edited 1 time in total
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On the other hand



Joined: 19 Apr 2003
Location: I walk along the avenue

PostPosted: Wed Mar 21, 2007 9:22 am    Post subject: Reply with quote

Quote:
I love your threads on the Current Events forum.

"Three of these things
belong together.
Three of these things
are kind of the same.
But one of these things is doing its own thing.
Find out before my song is done.
And now my song is done."



a. Islam: The Threat Within
b. Multiculturalism is a failure
c. Not all terrorists are Muslim, BUT ...
d. Dramatically inexpensive rocket has successful test flight


I'd just like to observe that, despite the impression one might get from reading that list of threads, I don't personally associate Mithridates with writing anti-Muslim stuff. Have I missed something here?
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mithridates



Joined: 03 Mar 2003
Location: President's office, Korean Space Agency

PostPosted: Wed Mar 21, 2007 9:24 am    Post subject: Reply with quote

On the other hand wrote:
Quote:
I love your threads on the Current Events forum.

"Three of these things
belong together.
Three of these things
are kind of the same.
But one of these things is doing its own thing.
Find out before my song is done.
And now my song is done."



a. Islam: The Threat Within
b. Multiculturalism is a failure
c. Not all terrorists are Muslim, BUT ...
d. Dramatically inexpensive rocket has successful test flight


I'd just like to observe that, despite the impression one might get from reading that list of threads, I don't personally associate Mithridates with writing anti-Muslim stuff. Have I missed something here?


I think so. I'm pretty sure he means that 90% of Current Events is either pro or anti-Muslim, interspersed with the odd cool thread about space by yours truly.
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On the other hand



Joined: 19 Apr 2003
Location: I walk along the avenue

PostPosted: Wed Mar 21, 2007 9:34 am    Post subject: Reply with quote

Quote:
I think so. I'm pretty sure he means that 90% of Current Events is either pro or anti-Muslim, interspersed with the odd cool thread about space by yours truly.


Ah, so by "your", he meant "you guys in Current Events". Gotcha.
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caniff



Joined: 03 Feb 2004
Location: All over the map

PostPosted: Wed Mar 21, 2007 9:34 am    Post subject: Reply with quote

mithridates wrote:
Troll_Bait wrote:
I love your threads on the Current Events forum.


I have an agenda too though: I'd like to colonize the inner Solar System.


You're starting to get a little creepy.
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mithridates



Joined: 03 Mar 2003
Location: President's office, Korean Space Agency

PostPosted: Wed Mar 21, 2007 9:46 am    Post subject: Reply with quote

caniff wrote:
mithridates wrote:
Troll_Bait wrote:
I love your threads on the Current Events forum.


I have an agenda too though: I'd like to colonize the inner Solar System.


You're starting to get a little creepy.


But doesn't everybody want to colonize the inner Solar System?

Or did that just make me look even creepier?
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mindmetoo



Joined: 02 Feb 2004

PostPosted: Wed Mar 21, 2007 4:22 pm    Post subject: Reply with quote

On the other hand wrote:
Quote:
I think so. I'm pretty sure he means that 90% of Current Events is either pro or anti-Muslim, interspersed with the odd cool thread about space by yours truly.


Ah, so by "your", he meant "you guys in Current Events". Gotcha.



Yeah. He should clear that up. He unfairly libels Mith.
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mindmetoo



Joined: 02 Feb 2004

PostPosted: Wed Mar 21, 2007 8:54 pm    Post subject: Reply with quote

mithridates wrote:


But doesn't everybody want to colonize the inner Solar System?



That would be damn cool.
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gang ah jee



Joined: 14 Jan 2003
Location: city of paper

PostPosted: Wed Mar 21, 2007 9:27 pm    Post subject: Reply with quote

Mith, since you're on a break from posting your trademark anti-Muslim threads, do you have any links to credible sites that discuss the feasibility of extra-terrestrial colonisation? I'm all for it, but I'd gotten the impression that it's more-or-less impossible. At very least I'd say that we'd need a near something-for nothing energy source to make it in any way viable, and then there are all the physiologicial and psychological issues, etc, etc. But I'd like to believe...
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Troll_Bait



Joined: 04 Jan 2006
Location: [T]eaching experience doesn't matter much. -Lee Young-chan (pictured)

PostPosted: Wed Mar 21, 2007 10:40 pm    Post subject: Reply with quote

Sorry about all of the confusion, everybody! My post seemed clear to me, and I thought I was being witty. Embarassed

I meant to say that there is a sameness to the threads found on the Current Events forum, in that they tend to cluster around a limited number of issues (e.g. Islam, Global Climate Change, George W. Bush, conspiracy theories, etc.).
So, Mith's threads are refreshingly distinct from the majority of other threads by other posters.

I meant to respond sooner, but I couldn't. I don't know if it's my computer of if something was farked up with Dave's, but whenever I hit "submit," the coloured bar beneath just sat there like frozen molasses, doing nothing.
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