Author Topic: ML-2 Updates and Discussion  (Read 120585 times)

Offline catdlr

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Re: ML-2 Updates and Discussion
« Reply #100 on: 08/10/2025 11:53 am »
Phillip Sloss's weekly report provides an update on ML-2 and a time-lapse of the construction.

Timestamp
17:37 Mobile Launcher-2 news and pictures of recent work from Bechtel

https://forum.nasaspaceflight.com/index.php?topic=62717.msg2707654#msg2707654
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Offline catdlr

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Re: ML-2 Updates and Discussion
« Reply #101 on: 08/24/2025 07:43 pm »
Cross Post

Phillip Sloss's weekly report provides an update on ML-2 construction.

Timestamp
17:32 Bechtel provides imagery of Mobile Launcher-2 construction during the 1st half of 2025

https://forum.nasaspaceflight.com/index.php?topic=58223.msg2711476#msg2711476
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Offline maquinsa

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Re: ML-2 Updates and Discussion
« Reply #102 on: 10/14/2025 04:18 am »
Some film pictures from my visit October 4th. ISO 200 Kodak on an old Canon EOS300

Offline woods170

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Re: ML-2 Updates and Discussion
« Reply #103 on: 10/14/2025 07:21 am »
Some film pictures from my visit October 4th. ISO 200 Kodak on an old Canon EOS300

Film grain!  ;D   And lot's of it I might add. But that's the "charm" of old-skool photography.
« Last Edit: 10/14/2025 07:22 am by woods170 »

Offline maquinsa

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Re: ML-2 Updates and Discussion
« Reply #104 on: 10/15/2025 01:37 am »
Some film pictures from my visit October 4th. ISO 200 Kodak on an old Canon EOS300

Film grain!  ;D   And lot's of it I might add. But that's the "charm" of old-skool photography.

Still learning! The light sensor in the camera is kind of messed up so I have to figure it out as I go! Final goal is capturing Artemis II, the first Starship Catch and next year's eclipse, I am really going for that old Sarurn V pictures vibe
« Last Edit: 10/15/2025 01:41 am by maquinsa »

Offline pochimax

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Re: ML-2 Updates and Discussion
« Reply #105 on: 12/08/2025 08:44 am »
paywalled but interesting

NASA partner to lay off dozens of Kennedy Space Center employees as project winds down
https://www.bizjournals.com/orlando/news/2025/11/14/bechtel-national-kennedy-space-center-nasa-layoffs.html
Nov 14, 2025

Quote
Bechtel is winding down its workforce at Kennedy Space Center as the Mobile Launcher 2 project approaches completion, with layoffs scheduled to happen in phases over several months starting in January 2026.

Asking IA it says:

Quote
Bechtel, a key NASA partner, is laying off around 60 employees at Kennedy Space Center starting January 2026 as work shifts from peak construction to testing for NASA's Mobile Launcher 2 (ML-2) for the Space Launch System (SLS) rocket

Offline catdlr

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Re: ML-2 Updates and Discussion
« Reply #106 on: 12/20/2025 09:47 pm »
Two video posts:

https://twitter.com/ENNEPS/status/2002441712795595237

Quote
Elisar Priel
@ENNEPS
·

It was another Artemis day at KSC, as the crew access arm was lifted and installed in place on the ML-2, meanwhile, the crew of the Artemis II mission drove past the
@NASASpaceflight
 cameras on their way to the VAB for a countdown demonstration test.
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Offline cplchanb

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Re: ML-2 Updates and Discussion
« Reply #107 on: 12/22/2025 01:40 pm »
paywalled but interesting

NASA partner to lay off dozens of Kennedy Space Center employees as project winds down
https://www.bizjournals.com/orlando/news/2025/11/14/bechtel-national-kennedy-space-center-nasa-layoffs.html
Nov 14, 2025

Quote
Bechtel is winding down its workforce at Kennedy Space Center as the Mobile Launcher 2 project approaches completion, with layoffs scheduled to happen in phases over several months starting in January 2026.

Asking IA it says:

Quote
Bechtel, a key NASA partner, is laying off around 60 employees at Kennedy Space Center starting January 2026 as work shifts from peak construction to testing for NASA's Mobile Launcher 2 (ML-2) for the Space Launch System (SLS) rocket

It really feels quite ironic that we were bemoaning the scheduling delays of ML-2 but now that its actually wrapping up construction soon, it seems like mission hardware is in fact the actual gatekeeper to the overall schedule.....

Offline woods170

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Re: ML-2 Updates and Discussion
« Reply #108 on: 12/23/2025 03:07 pm »
paywalled but interesting

NASA partner to lay off dozens of Kennedy Space Center employees as project winds down
https://www.bizjournals.com/orlando/news/2025/11/14/bechtel-national-kennedy-space-center-nasa-layoffs.html
Nov 14, 2025

Quote
Bechtel is winding down its workforce at Kennedy Space Center as the Mobile Launcher 2 project approaches completion, with layoffs scheduled to happen in phases over several months starting in January 2026.

Asking IA it says:

Quote
Bechtel, a key NASA partner, is laying off around 60 employees at Kennedy Space Center starting January 2026 as work shifts from peak construction to testing for NASA's Mobile Launcher 2 (ML-2) for the Space Launch System (SLS) rocket

It really feels quite ironic that we were bemoaning the scheduling delays of ML-2 but now that its actually wrapping up construction soon, it seems like mission hardware is in fact the actual gatekeeper to the overall schedule.....

"Seems" being the correct word here.

ML2 will be going thru a lot of basic electrical and fluid checks before the contractor turns it over to NASA in late 2026. And then the real fun begins: The Verification and Validation Phase, which will take another 20 to 24 months.
So, by the time ML2 is ready to actually support a vehicle stacking campaign, it will be NET late 2028/early 2029.

Offline pochimax

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Re: ML-2 Updates and Discussion
« Reply #110 on: 01/17/2026 04:28 pm »
It really feels quite ironic that we were bemoaning the scheduling delays of ML-2 but now that its actually wrapping up construction soon, it seems like mission hardware is in fact the actual gatekeeper to the overall schedule.....

"Seems" being the correct word here.

ML2 will be going thru a lot of basic electrical and fluid checks before the contractor turns it over to NASA in late 2026. And then the real fun begins: The Verification and Validation Phase, which will take another 20 to 24 months.
So, by the time ML2 is ready to actually support a vehicle stacking campaign, it will be NET late 2028/early 2029.

Given that Artemis III is already semi-officially delayed until the end of 2028, I think the comment was quite accurate...

Online DanClemmensen

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Re: ML-2 Updates and Discussion
« Reply #111 on: 01/17/2026 05:01 pm »
It really feels quite ironic that we were bemoaning the scheduling delays of ML-2 but now that its actually wrapping up construction soon, it seems like mission hardware is in fact the actual gatekeeper to the overall schedule.....

"Seems" being the correct word here.

ML2 will be going thru a lot of basic electrical and fluid checks before the contractor turns it over to NASA in late 2026. And then the real fun begins: The Verification and Validation Phase, which will take another 20 to 24 months.
So, by the time ML2 is ready to actually support a vehicle stacking campaign, it will be NET late 2028/early 2029.

Given that Artemis III is already semi-officially delayed until the end of 2028, I think the comment was quite accurate...
I think we are conflating Artemis III and Artemis IV. If ML2 cannot support a stacking campaign until late 2028, and a stacking campaign takes multiple months, then ML2 availability precludes a late 2028 launch of a block 1B SLS.

However, this has little or nothing to do with Artemis III, which is supposed to launch on an SLS block 1 and uses ML1.

Offline pochimax

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Re: ML-2 Updates and Discussion
« Reply #112 on: 01/17/2026 07:04 pm »
It really feels quite ironic that we were bemoaning the scheduling delays of ML-2 but now that its actually wrapping up construction soon, it seems like mission hardware is in fact the actual gatekeeper to the overall schedule.....

"Seems" being the correct word here.

ML2 will be going thru a lot of basic electrical and fluid checks before the contractor turns it over to NASA in late 2026. And then the real fun begins: The Verification and Validation Phase, which will take another 20 to 24 months.
So, by the time ML2 is ready to actually support a vehicle stacking campaign, it will be NET late 2028/early 2029.

Given that Artemis III is already semi-officially delayed until the end of 2028, I think the comment was quite accurate...
I think we are conflating Artemis III and Artemis IV. If ML2 cannot support a stacking campaign until late 2028, and a stacking campaign takes multiple months, then ML2 availability precludes a late 2028 launch of a block 1B SLS.

However, this has little or nothing to do with Artemis III, which is supposed to launch on an SLS block 1 and uses ML1.

late 2028 is for Artemis III. I suppose Artemis IV would have to have its launch date updated and be assigned to 2030. That's why it doesn't seem like the tower is no longer the problem, but rather the rest of the hardware.

However, it's not exactly as I've said, since the tower has to undergo pad tests and the VAB has to be reconfigured, and for that to happen, Artemis III has to take place, and the tests with the tower take time.
« Last Edit: 01/17/2026 07:06 pm by pochimax »

Offline cplchanb

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Re: ML-2 Updates and Discussion
« Reply #113 on: 01/19/2026 03:17 pm »
It really feels quite ironic that we were bemoaning the scheduling delays of ML-2 but now that its actually wrapping up construction soon, it seems like mission hardware is in fact the actual gatekeeper to the overall schedule.....

"Seems" being the correct word here.

ML2 will be going thru a lot of basic electrical and fluid checks before the contractor turns it over to NASA in late 2026. And then the real fun begins: The Verification and Validation Phase, which will take another 20 to 24 months.
So, by the time ML2 is ready to actually support a vehicle stacking campaign, it will be NET late 2028/early 2029.

Given that Artemis III is already semi-officially delayed until the end of 2028, I think the comment was quite accurate...
I think we are conflating Artemis III and Artemis IV. If ML2 cannot support a stacking campaign until late 2028, and a stacking campaign takes multiple months, then ML2 availability precludes a late 2028 launch of a block 1B SLS.

However, this has little or nothing to do with Artemis III, which is supposed to launch on an SLS block 1 and uses ML1.

late 2028 is for Artemis III. I suppose Artemis IV would have to have its launch date updated and be assigned to 2030. That's why it doesn't seem like the tower is no longer the problem, but rather the rest of the hardware.

However, it's not exactly as I've said, since the tower has to undergo pad tests and the VAB has to be reconfigured, and for that to happen, Artemis III has to take place, and the tests with the tower take time.

i remember this forum bemoaning the fact that ML would be so delayed and holding back the program. look how the tables have turned. ohh the irony... ::)

Online DanClemmensen

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Re: ML-2 Updates and Discussion
« Reply #114 on: 01/19/2026 03:37 pm »
It really feels quite ironic that we were bemoaning the scheduling delays of ML-2 but now that its actually wrapping up construction soon, it seems like mission hardware is in fact the actual gatekeeper to the overall schedule.....

"Seems" being the correct word here.

ML2 will be going thru a lot of basic electrical and fluid checks before the contractor turns it over to NASA in late 2026. And then the real fun begins: The Verification and Validation Phase, which will take another 20 to 24 months.
So, by the time ML2 is ready to actually support a vehicle stacking campaign, it will be NET late 2028/early 2029.

Given that Artemis III is already semi-officially delayed until the end of 2028, I think the comment was quite accurate...
I think we are conflating Artemis III and Artemis IV. If ML2 cannot support a stacking campaign until late 2028, and a stacking campaign takes multiple months, then ML2 availability precludes a late 2028 launch of a block 1B SLS.

However, this has little or nothing to do with Artemis III, which is supposed to launch on an SLS block 1 and uses ML1.

late 2028 is for Artemis III. I suppose Artemis IV would have to have its launch date updated and be assigned to 2030. That's why it doesn't seem like the tower is no longer the problem, but rather the rest of the hardware.

However, it's not exactly as I've said, since the tower has to undergo pad tests and the VAB has to be reconfigured, and for that to happen, Artemis III has to take place, and the tests with the tower take time.
How is ML-2 testing and validation dependent on Artemis III?

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Re: ML-2 Updates and Discussion
« Reply #115 on: 01/19/2026 05:45 pm »
How is ML-2 testing and validation dependent on Artemis III?

Won't they want to use the pad for testing connections to ML-2?
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Online DanClemmensen

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Re: ML-2 Updates and Discussion
« Reply #116 on: 01/19/2026 06:12 pm »
How is ML-2 testing and validation dependent on Artemis III?
Won't they want to use the pad for testing connections to ML-2?
How much of the time is the pad occupied by ML-1 for Artemis III? ML-1 and ML-2 are mobile.  Unless they intend to modify the pad interfaces, they should be able to time-share the pad.

Offline pochimax

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Re: ML-2 Updates and Discussion
« Reply #117 on: 01/19/2026 06:13 pm »
They need to test the ML-2 on the pad and also reconfigure the High Bay 3 in the VAB and perform tests in the VAB as well.
About 9 months.

Offline pochimax

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Re: ML-2 Updates and Discussion
« Reply #118 on: 01/19/2026 06:16 pm »
How is ML-2 testing and validation dependent on Artemis III?
Won't they want to use the pad for testing connections to ML-2?
How much of the time is the pad occupied by ML-1 for Artemis III? ML-1 and ML-2 are mobile.  Unless they intend to modify the pad interfaces, they should be able to time-share the pad.

Good question. I don't know if there are any modifications to the pad.
For now, the plan is sequential, but that could change.

Offline sdsds

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Re: ML-2 Updates and Discussion
« Reply #119 on: 01/19/2026 06:18 pm »
How is ML-2 testing and validation dependent on Artemis III?
Won't they want to use the pad for testing connections to ML-2?
How much of the time is the pad occupied by ML-1 for Artemis III? ML-1 and ML-2 are mobile.  Unless they intend to modify the pad interfaces, they should be able to time-share the pad.

So it seems like there are two options. Hurry to get ML-2 out to the pad for a test/debug campaign of unknown length, and then hurry to get it off the pad before Artemis III and ML-1 need it. Or do the unhurried thing, and grant Artemis III exclusive access to the pad until it's been launched. Which seems more like "the NASA way?"
« Last Edit: 01/19/2026 06:25 pm by sdsds »
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