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  On 2/4/2019 at 4:20 AM, Xd the great said:

 

Did they blew an engine by shutting it down?

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No. First tests, very short, making sure it works.

 

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Also: why is the flame green? Is this striking back on Bunsen burners?

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TEA-TEB.

Operational Raptor will use spark ignition, but for testing, they are eliminating a variable and using TEA-TEB for starting. Merlins do the same.

<EDIT> I read this someplace, can't recall where, however.

<second EDIT> I was wrong to say TEA-TEB, it was spark ignition. Camera artifact or some chamber overheating (copper in there) caused the green.

 

Edited by tater
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  On 2/4/2019 at 4:37 AM, RedKraken said:

My first (and very half-assed) meme :

89W5BuW.jpg

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You should tweet that at him.

  On 2/4/2019 at 4:20 AM, Xd the great said:

Also: why is the flame green? Is this striking back on Bunsen burners?

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My previous post might have been wrong. I'm honestly unsure. The discussion I remember was at NSF, and I selectively remembered part of it. Others were saying the scaled down version (which also showed the same green) was spark ignited.

So wait and see is the best answer, I guess.

Didn't have to wait long:

 

 

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Edited by kerbiloid
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  On 2/4/2019 at 5:40 AM, kerbiloid said:
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Elon is a KSP fan, I believe.

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  On 2/4/2019 at 9:38 AM, Elthy said:

The sound of that engine is insane. It appears to be recorded almost 1km away (sound seems to lag 2-3sec behind) but is still to muuuch for the microphone. 31 of them are hard to imagine...

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Let’s cut distance by a factor of ten and more than double the thrust.

 

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