Author Topic: SLS Artemis IV progress  (Read 79162 times)

Offline JohnFornaro

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Re: SLS Artemis IV progress
« Reply #20 on: 02/16/2023 06:34 pm »

Just goes to show that if they really wanted to they could speed up construction significantly.  Most of the delays is all due to mismanagement, funding and bureaucratic red tape

wrong on two of those items

You didn't say which two.  How about clarifying?
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Online yg1968

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Re: SLS Artemis IV progress
« Reply #21 on: 02/16/2023 11:20 pm »
Quote from: Howard Hu
#Artemis IV @NASA_Orion crew module pressure vessel arrives at @NASA_Kennedy. Our spacecraft factory is in full swing with 3 Orion vehicles being prepared to carry humans to the Moon.

https://twitter.com/HowardHuNASA/status/1626262475761917952

Online yg1968

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Re: SLS Artemis IV progress
« Reply #22 on: 02/17/2023 04:18 am »
Quote from: NASA OIG
Development, integration, and operation of NASA space flight systems will become more complex and expensive beginning with the fourth #Artemis mission.  Today we are announcing an audit examining NASA’s management of these missions beginning with Artemis IV.

https://twitter.com/NASAOIG/status/1626201199715446784

Online yg1968

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Re: SLS Artemis IV progress
« Reply #23 on: 03/13/2023 07:01 pm »
« Last Edit: 03/13/2023 07:02 pm by yg1968 »

Online yg1968

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« Last Edit: 08/15/2023 11:49 am by yg1968 »

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« Last Edit: 11/17/2023 05:14 pm by yg1968 »

Offline whitelancer64

Re: SLS Artemis IV progress
« Reply #26 on: 12/11/2023 07:51 pm »

"On CS-4, which will fly with the Artemis IV vehicle, the two lead elements of the previous core stage builds — the engine section and the intertank — are progressing toward structural completion. Shipment of the engine section structure to KSC is planned for early 2024, with the issues that have been encountered finishing the last welds for the Artemis III core stage having been factored into the overall production plan.

******

The intertank thrust beam and panels for CS-4 are being bolted together in the structural assembly jig adjacent to its counterpart for Core Stage-3. “Based on when intertank CS-3 completes [is] when you transfer the full force over to CS-4. Obviously, CS-4 has got to go get ‘TPS-ed,’ so it’ll be in the processing cells for a while getting that [work] completed before it comes back for integration.”

The need date for CS-4 will be driven by the development and construction of the new elements for Artemis IV. This will be the first flight of the SLS Block 1B vehicle with the new Exploration Upper Stage (EUS) currently in development and a new Mobile Launcher which is being constructed at KSC to support the longer, upgraded Block 1B rocket."

https://www.nasaspaceflight.com/2023/12/final-assembly-sls-core/
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Online catdlr

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Re: SLS Artemis IV progress
« Reply #27 on: 04/14/2024 11:29 pm »
https://twitter.com/NASA_SLS/status/1779525025382404171

Quote
NASA_SLS

@NASA_SLS
The universal stage adapter will debut during #Artemis IV and will connect
@NASA_Orion to the exploration upper stage on future SLS rockets in the Block 1B configuration.

Read more about the test version of the adapter that was recently moved>>https://go.nasa.gov/4cc785I
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Online catdlr

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Re: SLS Artemis IV progress
« Reply #28 on: 04/16/2024 09:23 pm »
First-of-its-kind SLS Payload Adapter Finishes Assembly at NASA Marshall



Quote
Apr 16, 2024  #Artemis #NASA #SLS
Teams at NASA’s Marshall Space Flight Center in Huntsville, Alabama, completed a new payload adapter test article and readied it for structural testing, set to begin later this spring. This marks a critical milestone on the journey to the hardware’s debut on the upgraded Block 1B configuration of NASA’s SLS (Space Launch System) rocket with Artemis IV. The composite payload adapter is an evolution from the Orion stage adapter used in the Block 1 configuration of the first three Artemis missions.
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Online catdlr

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Re: SLS Artemis IV progress
« Reply #29 on: 09/08/2024 11:50 am »
Cross-Post from Artemis II Update thread - Artemis IV parts showned.

Philip Sloss Update:

What do these Orion and SLS hardware deliveries say about Artemis II, III launch dates?

Quote

Sep 8, 2024
The arrival this past week of new Orion and SLS flight hardware at Kennedy Space Center for Artemis II, III, and IV is a reminder of the uncertain launch schedule.  This video covers those deliveries, of the Artemis II SLS Launch Vehicle Stage Adapter, Artemis II Orion European Service Module, and SLS Core Stage engine section hardware for Artemis III and IV.

Artemis II is scheduled for launch only one year from this month, and most of the SLS hardware for Artemis II is now in and around the Vehicle Assembly Building.  In this video, we also cover plans and preparations for the launch campaign in the second part of an interview with Exploration Ground Systems senior vehicle operations manager Cliff Lanham.

Meanwhile, the next milestones for that newly-delivery hardware are known in general, but when those and other Artemis III milestones will happen is harder to see.  We go over the cloudy forecast and other Artemis III takeaways from the late August NASA Advisory Council meeting here, too.

Imagery is courtesy of NASA, except where noted.

00:00 Intro
02:13 A week of Orion and SLS flight hardware deliveries to KSC
03:00 ESM-3 arrives in Orion final assembly at KSC
04:21 Core Stage engine section hardware packaged for shipment at MAF
06:45 Offloading SLS triple shipment from Pegasus at KSC
09:12 EGS senior manager Cliff Lanham talks to the podcast about Artemis II launch plans
10:13 Improving launch availability with contingency pad access capability
18:36 Artemis II pad flow from rollout to launch
20:35 Integrating the astronaut crew ingress of Orion into the launch countdown
24:05 Artemis III takeaways from NASA Exploration public report in NASA Advisory Council meeting
25:12 "At least" one uncrewed HLS lunar landing demonstration?
25:53 Outlook for the future remains cloudy only two years from Artemis III launch date
27:55 Thanks for watching!
Chapters

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Offline pochimax

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Re: SLS Artemis IV progress
« Reply #30 on: 03/19/2025 08:08 pm »
https://images.nasa.gov/details/MAF_20250131_CS4_FSoutVAC01

Quote
This image shows teams at NASA’s Michoud Assembly Facility in New Orleans lifting a forward skirt out of its vertical assembly center on Jan. 31, 2025. The forward skirt, which will be used on the core stage for the agency’s SLS (Space Launch System) rocket for its Artemis IV mission, houses flight computers, cameras, and avionics. While inside the vertical assembly center, technicians attached the forward skirt’s forward and aft rings, which serve as attachments points to the launch vehicle stage adapter and the liquid oxygen tank, respectively.

Offline pochimax

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Re: SLS Artemis IV progress
« Reply #31 on: 09/07/2025 07:50 pm »
According to the latest update from Sloss, manufacturing work on the EUS STA continues, and parts of the flight model are also being welded.

(modified link to start at the topic in question - Tony)

« Last Edit: 09/07/2025 08:11 pm by catdlr »

Offline pochimax

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Re: SLS Artemis IV progress
« Reply #32 on: 09/18/2025 04:05 pm »
At 6.10 of this video... on the left of Arty-2 LOX tank.

Is this Arty-4 LOX tank welding? Interstage?

https://images.nasa.gov/details/MAF_20250822_CS3%20LOX%20Break-over_Cell%20A

Online AndrewM

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Re: SLS Artemis IV progress
« Reply #33 on: 09/19/2025 12:59 am »
Snips on Block 1B from the GAOs annual assessment. The data collection ends in January/February with comments by NASA added later in the year.

Quote
Project Summary
SLS Block 1B is operating within the original cost and schedule baselines approved by NASA in December 2023. These baselines include a committed design certification review in January 2028, ahead of the planned Artemis IV mission in September 2028, and a life-cycle cost of approximately $4.9 billion.

According to NASA officials, the program is encountering difficulties manufacturing both the EUS and core stage needed for Artemis IV. Program officials attributed these problems to several issues, including delays to earlier Artemis flights and delayed deliveries of parts and materials.

The SLS program completed manufacturing of some flight hardware for Artemis IV, including the engines for both the core stage and the EUS. However, development of the facilities needed to test and qualify the integrated SLS Block 1B software and avionics remains a top program risk. Continued challenges could delay qualification testing, the design certification review, and the Artemis IV launch date.

Quote
Program office officials stated that they and Boeing, the prime contractor for SLS Block 1B, are actively engaging with subcontractors and parts suppliers and increasing their presence at the supplier facilities.

As of February 2025, the program had no margin between the planned contractor delivery dates for the EUS and core stage and the date that Exploration Ground Systems needs these elements to support Artemis IV. NASA officials stated that ongoing manufacturing issues with the SLS core stage for Artemis III and Artemis IV are likely to become the activities that drive the Artemis IV schedule.

Quote
A top program risk is the development of the EUS System Integration and Test Facility-Qualification (SITF-Q) needed to test and qualify the integrated SLS Block 1B software and avionics. The EUS SITF-Q is a complex facility and as of January 2025, delayed deliveries of wiring harnesses and avionics components, as well as component redesigns, were impacting its development schedule. There is a risk that continued late deliveries could delay qualification testing, the design certification review, and the Artemis IV launch date. Officials reported that Boeing developed and implemented a 5-phased Build and Checkout Plan that was completed in April 2025, demonstrating technical and schedule progress and risk burn down.

Quote
The SLS program has completed manufacturing of some flight hardware for Artemis IV, but development continues for new hardware needed for SLS Block 1B. The four RS25 engines required for the core stage and four RL-10 engines required for EUS are complete and in storage. The program has also completed casting of the 10 solid rocket booster segments. Development continues on capability upgrades required for SLS Block 1B. For example, the universal stage adapter and the payload adaptor, which attach the Orion vehicle to the EUS, are undergoing structural testing.

Since June 2024, the SLS program successfully completed developmental testing of the Autonomous Flight Safety System in a pod mounted to an airplane. This system will autonomously terminate the SLS Block 1B’s flight, if necessary, to protect the public. The results of these tests will inform the design of the SLS program’s Autonomous Flight Safety System.

The FY26 PBR proposed canceling SLS starting with Artemis IV.

Quote
The Space Launch System (SLS), Orion and Exploration Ground System (EGS) government programs government programs will be retired after Artemis III. The request supports the transition to commercial transportation services for the
Artemis IV mission and beyond, improving the cost effectiveness and cadence of access to the Moon and fostering innovation and supporting U.S. industry leadership in human space exploration.

Quote
This budget funds the close-out of the Block 1B upgrade. NASA proposes to use unobligated balances previously appropriated to support the termination of these activities, including, but not limited to, ongoing administration, oversight, monitoring, and funding of procurements previously awarded by the SLS Program.

However, the Big Beautiful Bill commits to using SLS for Artemis IV (and V) with $1.025B obligated in each of FY26, 27, 28, and 29.

Quote
$4,100,000,000 for expenses related to meeting the requirements of section 10812 of the National Aeronautics and Space Administration Authorization Act of 2022 (51 U.S.C. 20301; Public Law 117-167) for the procurement, transportation, integration, operation, and other necessary expenses of the Space Launch System for Artemis Missions IV and V, of which not less than $1,025,000,000 shall be obligated for each of fiscal years 2026, 2027, 2028, and 2029.

Offline pochimax

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Re: SLS Artemis IV progress
« Reply #34 on: 09/19/2025 09:00 pm »

 

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