Author Topic: FAILURE: SpaceX Falcon I Launch III - August 2  (Read 345691 times)

Offline guidanceisgo

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Re: FAILURE: SpaceX Falcon I Launch III - August 2
« Reply #540 on: 08/03/2008 04:59 am »
A significant investment as a precautionary measure ... now Elon will have to account to investors.  I get the feeling that the Falcon 1 will now just be a testbed for Falcon 9.  Maybe thats the way it has to be to make COTS a reality. Kind of an interesting statement.

Offline Firehawk153

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Re: FAILURE: SpaceX Falcon I Launch III - August 2
« Reply #541 on: 08/03/2008 04:59 am »
Great news that the first stage performed as expected, I know today is still a disappointment but at least there's that.

Offline G-pit

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Re: FAILURE: SpaceX Falcon I Launch III - August 2
« Reply #542 on: 08/03/2008 04:59 am »
So the problem was with stage separation. A question to all you experts out there: Is it fair to assume that the oscillation seen in the video had nothing to do with the staging issue at hand?
« Last Edit: 08/03/2008 05:00 am by G-pit »
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Offline Jim

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Re: FAILURE: SpaceX Falcon I Launch III - August 2
« Reply #543 on: 08/03/2008 05:00 am »
]
Off topic, but wouldn't it be nice if they could fit that solar sail spacecraft, or anything other payload, with an escape rocket, like they do with manned capsules, so it doesn't get lost as often as the rocket does?  (Shroud serves as heat shield, add parachute.  I know there a lot of issues like reduced payload capacity and increased vehicle complexity, but it's just a thought.)


Not really practical.   The payload would have be designed for the abort accel.  Also how to deal with landing loads. 

Insurance is cheaper

Offline Jim

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Re: FAILURE: SpaceX Falcon I Launch III - August 2
« Reply #544 on: 08/03/2008 05:00 am »
Sorry for the basic/stupid question, but does SpaceX use active explosive devices on their LVs or do they just let it run out of fuel and crash.

Thrust termination on F1.  In other words, shut down and fall to your doom.  No explosive termination systems in the F1.

Thanks for clarifying that for me.

Doesn't range safety at the Cape require an active destruct system?

yes it will

Offline James Lowe1

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Re: FAILURE: SpaceX Falcon I Launch III - August 2
« Reply #545 on: 08/03/2008 05:01 am »
Ok, thread now trimmed back. Please hit the "report to a moderator" if we've missed any posts that are out of place on this live update thread.

Offline Antares

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Re: FAILURE: SpaceX Falcon I Launch III - August 2
« Reply #546 on: 08/03/2008 05:02 am »
Awesome job, Chris, for having a site that Elon chooses to use.  Straight, unhindered knowledge from the man himself.  Kids, be glad we have this resource here at NSF to get the best information mere minutes after it happened.  And be glad Alt.Space has a patron like Elon willing to risk his own coin to do this.  Anyone who believes in space should be helping him or at least staying out of the way.

This second-guessing is for amateurs.
If I like something on NSF, it's probably because I know it to be accurate.  Every once in a while, it's just something I agree with.  Facts generally receive the former.

Offline Jim

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Re: FAILURE: SpaceX Falcon I Launch III - August 2
« Reply #547 on: 08/03/2008 05:10 am »
Rocket Science is really hard.
Cut them some slack.

This can be deleted if necessary

No,  I won't give them slack.  They brought this on themselves with their spin on cost and reliability.

First perform and then pound your chest

Offline dnavas

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Re: FAILURE: SpaceX Falcon I Launch III - August 2
« Reply #548 on: 08/03/2008 05:13 am »
Heartbreaking.  Best wishes to all of the folks at SpaceX.

Building rockets is a humbling experience, clearly.

Thanks for the info from Elon, and the video feed.  My feed here was quite laggy, and the roll was essentially obscured.  I await with interest to see what tiny thing(s) went wrong this time. 

-Dave

Offline Ford Mustang

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Re: FAILURE: SpaceX Falcon I Launch III - August 2
« Reply #549 on: 08/03/2008 05:13 am »
spacex says the stages failed to separate.

Posted 20 minutes ago by Chris, from an email from Elon himself.

Offline sdsds

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Re: FAILURE: SpaceX Falcon I Launch III - August 2
« Reply #550 on: 08/03/2008 05:22 am »
Great news that the first stage performed as expected, I know today is still a disappointment but at least there's that.

Agreed. But being careful Elon only wrote the first stage of flight under Merlin 1C power performed as expected. He did not assert all hardware on the first stage of the vehicle performed as expected. Something prevented successful stage sep!
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Offline HIP2BSQRE

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Re: FAILURE: SpaceX Falcon I Launch III - August 2
« Reply #551 on: 08/03/2008 05:27 am »
But was not stage seperation one of the things that doomed flight 2?  Is stage seperation very hard?

Offline William Graham

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Re: FAILURE: SpaceX Falcon I Launch III - August 2
« Reply #552 on: 08/03/2008 05:35 am »
But was not stage seperation one of the things that doomed flight 2?  Is stage seperation very hard?

The problem on F2 was very different. On that flight, the top of the first stage hit the second stage engine during separation. From the reports on this flight, it sounds like it just didn't separate at all.

Offline Seattle Dave

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Re: FAILURE: SpaceX Falcon I Launch III - August 2
« Reply #553 on: 08/03/2008 05:36 am »
Elon's sent an e-mail:

It was obviously a big disappointment not to reach orbit on this flight.  On the plus side, the flight of our first stage, with the new Merlin 1C engine that will be used in Falcon 9, was picture perfect.  Unfortunately, a problem occurred with stage separation, causing the stages to be held together.  This is under investigation and I will send out a note as soon as we understand exactly what happened. 

The most important message I’d like to send right now is that SpaceX will not skip a beat in execution going forward.  We have flight four of Falcon 1 almost ready for flight and flight five right behind that.  I have also given the go ahead to begin fabrication of flight six.  Falcon 9 development will also continue unabated, taking into account the lessons learned with Falcon 1.  We have made great progress this past week with the successful nine engine firing.


As a precautionary measure to guard against the possibility of flight 3 not reaching orbit, SpaceX recently accepted a significant investment.  Combined with our existing cash reserves, that ensures we will have more than sufficient funding on hand to continue launching Falcon 1 and develop Falcon 9 and Dragon.  There should be absolutely zero question that SpaceX will prevail in reaching orbit and demonstrating reliable space transport.  For my part, I will never give up and I mean never. 

Thanks for your hard work and now on to flight four.


Elon



Chris, can you e-mail Elon back with our best wishes?

Offline HIP2BSQRE

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Re: FAILURE: SpaceX Falcon I Launch III - August 2
« Reply #554 on: 08/03/2008 05:37 am »
Flight 4 is scheduled for Sept...so what happens with that now?  Does anyone see Flight 4 taking place before the end of the year. 

Let's "assume" it was a seperator event, investigation, finding cause, report and fixing it.. etc any ...you are in the holiday season again.  Would you look at the whole vecheal again or just the part that failed? 

Remember--Falcon 9 is learning lessons from Falcon 1 and it is meant to fly in Q1 '09. 

Offline Antares

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Re: FAILURE: SpaceX Falcon I Launch III - August 2
« Reply #555 on: 08/03/2008 05:38 am »
I honestly wonder if they'll go look for the vehicle.  Could be very interesting evidence in there on this non-sep event.
If I like something on NSF, it's probably because I know it to be accurate.  Every once in a while, it's just something I agree with.  Facts generally receive the former.

Offline Chris Bergin

Re: FAILURE: SpaceX Falcon I Launch III - August 2
« Reply #556 on: 08/03/2008 05:39 am »

Chris, can you e-mail Elon back with our best wishes?

I already have. I knew I didn't have to ask you all....as the vast majority of people on this site wouldn't wish him - and SpaceX - anything else.
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Offline jimvela

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Re: FAILURE: SpaceX Falcon I Launch III - August 2
« Reply #557 on: 08/03/2008 05:41 am »
I honestly wonder if they'll go look for the vehicle.  Could be very interesting evidence in there on this non-sep event.

Oh I'm sure that there will be radar tracks of the parts coming down. 

I doubt that they would turn down any parts that could be found.

Having said that, I wouldn't expect much to be left of that hardware after igniting the 2nd stage engine into a still-attached 1st stage/interstage.

Offline sdsds

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Re: FAILURE: SpaceX Falcon I Launch III - August 2
« Reply #558 on: 08/03/2008 05:44 am »
Elon's email is now also at http://www.spacex.com/updates.php
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Offline edkyle99

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Re: FAILURE: SpaceX Falcon I Launch III - August 2
« Reply #559 on: 08/03/2008 05:46 am »

Having said that, I wouldn't expect much to be left of that hardware after igniting the 2nd stage engine into a still-attached 1st stage/interstage.

That may not necessarily have happened.  It could have been a sequencing issue.  It might not be possible to start the Kestrel engine until separation is confirmed, for example.  Before staging, there needs to be a Merlin 1C shutdown signal, most likely.  Before the Merlin can shut down, a tank depletion sensor may have to trip.  Etc.. 

 - Ed Kyle
« Last Edit: 08/03/2008 05:49 am by edkyle99 »

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