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rodion_herrera rodion_herrera is offline
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Default Soyuz MS-10 Orbit Failure (developing story)
by rodion_herrera 10-11-2018, 09:04 AM

The Soyuz MS-10 launch experienced a booster (2nd stage didn't ignite or partial ignition I presume?) failure and did a ballistic trajectory. As of this writing the capsule is expecting to reenter and land in Siberia.

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Old 10-11-2018, 09:14 AM   #2
Urwumpe
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Quote:
Originally Posted by rodion_herrera View Post
 The Soyuz MS-10 launch experienced a booster (2nd stage didn't ignite or partial ignition I presume?) failure and did a ballistic trajectory. As of this writing the capsule is expecting to reenter and land in Siberia.

RODION
Bad news for the astronauts, such a ballistic reentry isn't a nice experience.

But at least chances are high to survive it.
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Old 10-11-2018, 09:24 AM   #3
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SAR is in contact with the crew.

Confirmed that they have landed.
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Old 10-11-2018, 09:30 AM   #4
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HOLY CRAP!!!
It seems the core went boom...
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Old 10-11-2018, 09:43 AM   #6
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That orange flame is not normal. Seems like the 2nd stage (the long core) had issues even before separation of the 1st boosters. And it's definitely not supposed to "cough" like that.
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Old 10-11-2018, 09:48 AM   #7
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 That orange flame is not normal. Seems like the 2nd stage (the long core) had issues even before separation of the 1st boosters. And it's definitely not supposed to "cough" like that.
Also, note that the stack was teetering/swaying a little prior to 1st stage sep.
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Old 10-11-2018, 09:48 AM   #8
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Looks more like something went wrong during booster separation, except the amount of debris after the separation, all looks correct. There is always a lot of interaction between the many exhaust jets of the Soyuz.

Last edited by Urwumpe; 10-11-2018 at 09:50 AM.
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Old 10-11-2018, 09:50 AM   #9
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Another view of the failure:
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Old 10-11-2018, 09:53 AM   #10
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For comparison MS-09:

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Old 10-11-2018, 10:19 AM   #11
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https://www.bbc.co.uk/news/world-europe-45822845
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Old 10-11-2018, 10:22 AM   #12
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EDIT: Not sure if the twitter "box" is showing up... here's the text
Quote:
William Harwood
‏ @cbs_spacenews
12m12 minutes ago
SoyuzMS10: Recovery crews have reached the Soyuz MS-10 spacecraft; Ovchinin and Hague are now out of the descent capsule and are reported to be in good shape; they will be flown back to Moscow, according to NASA commentator Brandi Dean
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Old 10-11-2018, 10:44 AM   #13
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Quote:
Originally Posted by DaveS View Post
 That orange flame is not normal. Seems like the 2nd stage (the long core) had issues even before separation of the 1st boosters. And it's definitely not supposed to "cough" like that.

What I saw on another thread (which may or may not be true), it was a problem with going from 70% - 100% on the centre stage.
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Old 10-11-2018, 10:44 AM   #14
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Could it be that a booster had a dry turbo-pump and separated earlier? These puffs in the exhaust trail look strange and it seems like something separated already a second before usual staging.

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Old 10-11-2018, 10:57 AM   #15
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So medium term is probably ok with commercial crew next year and it is probably possible to to bring those flights forward a few months by throwing more resources at the problem.

The next Soyuz is due to go in late Dec, but that seems unlikely now.
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