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Rocketology: NASA’s Space Launch System

The Engine Experience

20 Aug 2015, 13:27 UTC
The Engine Experience
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Click here to view the embedded video.
Can I make a confession? To be honest, I was a little bit jaded about going to see last week’s test firing of one of Space Launch System’s RS-25 engines.
Don’t get me wrong, when the opportunity to go came up, I took it in a heartbeat. I was even excited about it.
Let’s put this in perspective. I’ve seen shuttle launches. Not one, but three RS-25 engines, each time. Plus two solid rocket boosters. Stacked together, and heading into space atop a column of sky-splitting light and noise. If you never got to see one, they were pretty amazing.
So one RS-25? Going nowhere? Honestly?
With a history of almost 50 years, the A-1 stand was used for tests to make sure the Saturn V and space shuttle were ready for flight.
In case you missed it, in our last two blog posts, we talked about the test stands and the engines themselves, and you can read about the 535-second test of the 12-million-horsepower engine and see video here.
But what was it like?
If some hypothetical foolish soul were to be naïve enough as to be jaded about an RS-25 test ...

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