Author Topic: RS-25 testing at Stennis for SLS - UPDATES  (Read 118489 times)

Offline DaveS

  • Shuttle program observer
  • Senior Member
  • *****
  • Posts: 8087
  • Sweden
  • Liked: 568
  • Likes Given: 28
Re: RS-25 testing at Stennis for SLS - UPDATES
« Reply #380 on: 12/12/2018 08:25 pm »
ABORT! ENGINE SHUT DOWN AFTER JUST A FEW SECONDS.
"For Sardines, space is no problem!"
-1996 Astronaut class slogan

"We're rolling in the wrong direction but for the right reasons"
-USA engineer about the rollback of Discovery prior to the STS-114 Return To Flight mission

Offline DaveS

  • Shuttle program observer
  • Senior Member
  • *****
  • Posts: 8087
  • Sweden
  • Liked: 568
  • Likes Given: 28
Re: RS-25 testing at Stennis for SLS - UPDATES
« Reply #381 on: 12/12/2018 08:26 pm »
Things did not look normal with a fire going on on the far side of the engine powerhead.
"For Sardines, space is no problem!"
-1996 Astronaut class slogan

"We're rolling in the wrong direction but for the right reasons"
-USA engineer about the rollback of Discovery prior to the STS-114 Return To Flight mission

Online Chris Bergin

Re: RS-25 testing at Stennis for SLS - UPDATES
« Reply #382 on: 12/12/2018 08:26 pm »
WOW! Fire on the powerhead. ABORT!
« Last Edit: 12/12/2018 08:33 pm by Chris Bergin »

Offline DaveS

  • Shuttle program observer
  • Senior Member
  • *****
  • Posts: 8087
  • Sweden
  • Liked: 568
  • Likes Given: 28
Re: RS-25 testing at Stennis for SLS - UPDATES
« Reply #383 on: 12/12/2018 08:28 pm »
Here's a shot of the fire:
"For Sardines, space is no problem!"
-1996 Astronaut class slogan

"We're rolling in the wrong direction but for the right reasons"
-USA engineer about the rollback of Discovery prior to the STS-114 Return To Flight mission


Offline SciNews

  • Full Member
  • ****
  • Posts: 497
  • Romania
  • Liked: 459
  • Likes Given: 6
Re: RS-25 testing at Stennis for SLS - UPDATES
« Reply #385 on: 12/12/2018 08:37 pm »
Replay

Offline DaveS

  • Shuttle program observer
  • Senior Member
  • *****
  • Posts: 8087
  • Sweden
  • Liked: 568
  • Likes Given: 28
Re: RS-25 testing at Stennis for SLS - UPDATES
« Reply #386 on: 12/12/2018 08:48 pm »
This is the approximate location of the fire based on what identifiable components were seen in the camera view:
"For Sardines, space is no problem!"
-1996 Astronaut class slogan

"We're rolling in the wrong direction but for the right reasons"
-USA engineer about the rollback of Discovery prior to the STS-114 Return To Flight mission

Offline eric z

  • Full Member
  • ***
  • Posts: 316
  • Liked: 226
  • Likes Given: 616
Re: RS-25 testing at Stennis for SLS - UPDATES
« Reply #387 on: 12/12/2018 09:07 pm »
 Good luck to the team with their analysis and investigation! These are great engines, so hopefully this will be relatively easy to fix! Hitting the "like" button for a test-abort doesn't seem right, but thanks for the coverage.

Offline DaveS

  • Shuttle program observer
  • Senior Member
  • *****
  • Posts: 8087
  • Sweden
  • Liked: 568
  • Likes Given: 28
Re: RS-25 testing at Stennis for SLS - UPDATES
« Reply #388 on: 12/12/2018 10:17 pm »
I counted 40 seconds between ignition and full shutdown of the engine. So it went on for almost a full minute. I also watched more closely during the shutdown phase and it seems like the fire didn't originate from the engine as previously thought but rather from a facility pipe near the engine:
"For Sardines, space is no problem!"
-1996 Astronaut class slogan

"We're rolling in the wrong direction but for the right reasons"
-USA engineer about the rollback of Discovery prior to the STS-114 Return To Flight mission

Offline FutureSpaceTourist

  • Senior Member
  • *****
  • Posts: 7820
  • UK
    • Plan 28
  • Liked: 9177
  • Likes Given: 3136
Re: RS-25 testing at Stennis for SLS - UPDATES
« Reply #389 on: 12/21/2018 06:59 pm »
Good to know damage is ‘limited’:

Quote
Dec. 20, 2018
MEDIA ADVISORY S18-054

RS-25 Early Termination Update

During an RS-25 engine test on December 12, a manual early termination was initiated when data indicated an anomaly. An investigation into the incident remains underway although initial indications are that damage to the test stand and engine are limited.

For more information about Stennis Space Center, visit:

www.nasa.gov/centers/stennis/

Calvin Thompson
Stennis Space Center
228-688-3749
[email protected]

Last Updated: Dec. 21, 2018
Editor: LaToya Dean

https://www.nasa.gov/press-release/rs-25-early-termination-update



Offline PM3

  • Full Member
  • **
  • Posts: 295
  • Germany
  • Liked: 309
  • Likes Given: 182
Re: RS-25 testing at Stennis for SLS - UPDATES
« Reply #392 on: 02/13/2019 04:08 pm »
NASA TV coverage at 4 pm Eastern = 21:00 UTC today

Online Chris Bergin

Re: RS-25 testing at Stennis for SLS - UPDATES
« Reply #393 on: 02/13/2019 08:11 pm »
10 mins past the expected time of the webcast and still on live ISS views.

Oh, they heard me ;)
« Last Edit: 02/13/2019 08:12 pm by Chris Bergin »

Online Chris Bergin

Re: RS-25 testing at Stennis for SLS - UPDATES
« Reply #394 on: 02/13/2019 08:14 pm »


Online Chris Bergin

Re: RS-25 testing at Stennis for SLS - UPDATES
« Reply #396 on: 02/13/2019 08:31 pm »


Offline Mapperuo

  • Assistant Webmaster
  • Administrator
  • Full Member
  • *****
  • Posts: 1678
  • Yorkshire
  • Liked: 522
  • Likes Given: 65
Re: RS-25 testing at Stennis for SLS - UPDATES
« Reply #398 on: 02/13/2019 08:50 pm »
- Aaron

Offline PM3

  • Full Member
  • **
  • Posts: 295
  • Germany
  • Liked: 309
  • Likes Given: 182
Re: RS-25 testing at Stennis for SLS - UPDATES
« Reply #399 on: 02/27/2019 06:33 pm »
Next test is tentatively scheduled for tomorrow, between 2:30 and 3:30 pm CDT (20:30-21:30 UTC).

Live coverage is planned on NASA TV Media Channel (=> Livestream) and NASA Stennis Facebook page. This may overlap with the SpX-DM1 prelaunch briefing, which is broadcast on NASA TV Public Channel at 21:00 UTC.

https://twitter.com/NASAStennis/status/1100800592669302784

Replay of engine test on all NASA TV channels at 9 pm EST
« Last Edit: 02/27/2019 11:14 pm by PM3 »

Tags: