SpaceX News

Point out news stories, on the net or in mainstream media, related to polywell fusion.

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AcesHigh
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Joined: Wed Mar 25, 2009 3:59 am

Post by AcesHigh »

DeltaV wrote:Assorted recent news about SpaceX and its competition.

Elon Musk's Latest Interview
Elon Musk’s Mission to Mars
We have essentially no patents in SpaceX. Our primary long-term competition is in China—if we published patents, it would be farcical, because the Chinese would just use them as a recipe book.
Reaching for the stars in Mojave

Blue Origin Successfully Tests Crew Capsule Escape Rocket
thanks for the links. Excellent interview to Wired.

GIThruster
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Joined: Tue May 25, 2010 8:17 pm

Post by GIThruster »

Congrats to SpaceX for another successful splashdown and recovery.
"Courage is not just a virtue, but the form of every virtue at the testing point." C. S. Lewis

Skipjack
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Joined: Sun Sep 28, 2008 2:29 pm

Post by Skipjack »

Yepp, another mission well done!
Of course the NASA press release had to contain a shameless plug for the SLS... That is going to be harder and harder to justify...

Skipjack
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Joined: Sun Sep 28, 2008 2:29 pm

Post by Skipjack »

Another successful Grasshopper hover test (small, but still important):
http://twitter.yfrog.com/f362mloybjbosdefkdeoytqsz

Skipjack
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Joined: Sun Sep 28, 2008 2:29 pm

Post by Skipjack »

New videos with sound:
http://www.youtube.com/watch?v=n-VjaBSSnqs&feature=plcp
The caption gives some more information. Grasshopper is sooo huge. What looks like it barely getting of the ground is actually a two story hopp.

Betruger
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Post by Betruger »

Someone somewhere (NSF?) made a quick & dirty relative scales graphic. DC-X is dwarfed.
You can do anything you want with laws except make Americans obey them. | What I want to do is to look up S. . . . I call him the Schadenfreudean Man.

DeltaV
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Joined: Mon Oct 12, 2009 5:05 am

Post by DeltaV »

Typical teething problems:
SpaceX Cargo Mission Suffered Other Anomalies

I do have to wonder, though, about counterfeit/hacked chips and software in the electronics. China is (or will be) SpaceX's main competition, after all.

Skipjack
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Post by Skipjack »

Yeah, I guess they need better shielding and more redundancy.

krenshala
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Location: Austin, TX, NorAm, Sol III

Post by krenshala »

Additional shielding may be all that is required, at least for the electronics side of things.

Skipjack
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Post by Skipjack »

Additional shielding may be all that is required, at least for the electronics side of things.
Yeah that is what I was thinking too.

DeltaV
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Joined: Mon Oct 12, 2009 5:05 am

Post by DeltaV »

Turns out they don't even use rad-hard parts, rather a rad-hard architecture. Redundancy, cross-checking and voting is the standard practice, as with Shuttle.
Dragon's "Radiation-Tolerant" Design

C++ to Mars? Yuk.
"Entry interface in 4 seconds. 2 seconds. Hey! What's with the spinning circle thingy?!"

Skipjack
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Joined: Sun Sep 28, 2008 2:29 pm

Post by Skipjack »

C++ to Mars? Yuk.
So you would write the entire code in assembler?

jcoady
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Post by jcoady »


jcoady
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Post by jcoady »


Skipjack
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Joined: Sun Sep 28, 2008 2:29 pm

Post by Skipjack »

It is funny how everyone is ohhh sooo concerned about the failure of one first stage engine (that did not even directly affect its ability to fulfill its mission) and completely forget that the first launch of Ariane5 was total failure with loss of vehicle and payload and it still turned into a rather relyable launcher in the end.
The biggest problem for Arianespace and EADS is politics. There is no doubt that the engineers have the skills. They would probably know how to do it all cheaper and better, probably even have ideas for RLVs (like the Skylon). The problem is that with so many parties involved that all have their own interests and want to get a piece of the cake, supply lines get longer and processes get inefficient. It takes forever to make even the simplest decisions. It is very clear that Europe can not and will never be able to compete with SpaceX via process. The system does not allow for enough optimizations to lower cost. The only chance they have is to innovate by design and engineering, but even that will be difficult due to the fact that noone wants to take risks with new designs.
What I hope is that Europe will not get to a decision on Ariane 6 before SpaceX has their reusable first stage operational. I hope that once SpaceX does the first step, the stigma of "RLV cant be done" will be broken and competitors will dare to think in that direction again. At that point they will definitely have to in order to even pretend to ever be cost competitive again.

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