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Old 11-14-2023, 04:43 PM
 
Location: Madison, Alabama
13,061 posts, read 9,585,395 times
Reputation: 9013

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I love to hear that sound. Only lasted a couple of minutes this time - hope it wasn't some sort of premature shutdown. A few weeks ago there was one that lasted at least 10 minutes. I assume it's Blue Origin testing in the NASA test stands.
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Old 11-14-2023, 11:06 PM
 
844 posts, read 423,551 times
Reputation: 1434
Marshall's engine test facility are becoming a national asset for liquid rocket engine testing, just like the Langley's wind tunnel. The couple minutes testing you heard was probably just a checkout test to see if everything is nominal. Sometimes they run it as short as less than a minute.
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Old 11-16-2023, 04:58 PM
 
Location: Madison, Alabama
13,061 posts, read 9,585,395 times
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And now another one, just before 6 p.m. on 11/16.

Doesn't sound as loud as the previous one, but the skies are clear now, cloudy then. Sounds like they're doing some throttling as well. This one only lasted a couple of minutes, just as the last one.
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Old 11-16-2023, 05:53 PM
 
Location: Madison, Alabama
13,061 posts, read 9,585,395 times
Reputation: 9013
And now another test firing, less than an hour after the one just above. Short one - about a minute.
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