Author Topic: Artemis II (EM-2) SLS UPDATES  (Read 101546 times)

Offline Conexion Espacial

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Re: Artemis II (EM-2) UPDATE thread - May 2024
« Reply #20 on: 06/11/2022 02:29 pm »
New NASASpaceFlight article giving an update on the Orion for Artemis II as well as the other Orion spacecraft in the program.


https://www.nasaspaceflight.com/2022/06/orion-status-update/
I publish information in Spanish about space and rockets.
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Offline whitelancer64

Re: Artemis II (EM-2) UPDATE thread - May 2024
« Reply #21 on: 07/25/2022 07:50 pm »

Boeing aiming to deliver second SLS Core Stage to NASA in March
written by Philip Sloss July 25, 2022

https://www.nasaspaceflight.com/2022/07/boeing-second-sls-core-march/

"Boeing is continuing final assembly work for the second Space Launch System (SLS) Core Stage at the Michoud Assembly Facility (MAF) in New Orleans, with plans to complete production and deliver the rocket stage to NASA next year in March 2023. The space agency’s prime contractor for SLS Core Stages is wrapping up standalone integration of the engine section/boattail assembly of the most complicated element of the launch vehicle.

Following subassembly functional testing, Boeing plans to break the engine section over from its current vertical orientation to horizontal and then mate it to the upper “four-fifths” of the stage in late October. The four RS-25 engines would then be installed late this year, leading to final integrated function testing of the whole stage over the holidays into early next year ahead of the planned March delivery date."
"One bit of advice: it is important to view knowledge as sort of a semantic tree -- make sure you understand the fundamental principles, ie the trunk and big branches, before you get into the leaves/details or there is nothing for them to hang on to." - Elon Musk
"There are lies, damned lies, and launch schedules." - Larry J

Offline whitelancer64

Re: Artemis II (EM-2) UPDATE thread - May 2024
« Reply #22 on: 11/04/2022 03:09 pm »
"Teams have delivered the four RS-25 engines that will help power Artemis II, the first crewed mission of NASA’s Artemis missions and second flight of the Space Launch System (SLS) rocket, to NASA’s Michoud Assembly Facility in New Orleans. Later this fall, the engines will be installed into the Artemis II core stage, which is in the final phase of assembly at Michoud where it was manufactured. Trucks transported the engines in special containers from NASA’s Stennis Space Center near Bay St. Louis, Mississippi, where they were upgraded with new controllers.

Together, the four RS-25 engines will produce more than 2 million pounds of thrust during ascent to help send Artemis II astronauts beyond Earth’s orbit to lunar orbit. Technicians from NASA and Aerojet Rocketdyne, the prime contractor for the engines, will store the engines at Michoud and prepare them for integration into the engine section at the bottom of the rocket’s 212-foot-tall core stage. They will use a pathfinder engine to practice the intricate process of installing each engine on the stage prior to installing the flight engines.

The first engine – Engine E2047 -- of the flight set flew on 15 space shuttle missions, including the final shuttle mission STS-135. The second engine of the set – Engine E2059 -- previously flew on five shuttle missions. The third and fourth engines – E2062 and E2063 – are new engines that include some previously flown hardware.

With the Artemis missions, NASA will land the first woman and the first person of color on the Moon and establish long-term exploration in preparation for missions to Mars. SLS and NASA’s Orion spacecraft, along with the commercial human landing system and the Gateway in orbit around the Moon, are NASA’s backbone for deep space exploration. SLS is the only rocket that can send Orion, astronauts, and supplies to the Moon in a single mission.

Image Credit: NASA/ Michael DeMocker

Last Updated: Sep 29, 2022
Editor: Lee Mohon"

https://www.nasa.gov/exploration/systems/sls/artemis-ii-rocket-engines-arrive-at-nasa-s-michoud-assembly-facility.html
"One bit of advice: it is important to view knowledge as sort of a semantic tree -- make sure you understand the fundamental principles, ie the trunk and big branches, before you get into the leaves/details or there is nothing for them to hang on to." - Elon Musk
"There are lies, damned lies, and launch schedules." - Larry J

Offline Hog

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Re: Artemis II (EM-2) UPDATE thread - May 2024
« Reply #23 on: 11/04/2022 03:43 pm »
I just wanted to emphasize that ME-2062(built 2010) and ME-2063 built in 2014 are the only brand new unflown RS25D engines of the entire Artemis program.  While all 16 RS25 engines have been fully developed/qualified from RS25D/SSME "HERITAGE" engines into SLS spec RS25 "ADAPTATION" engines, someone, somewhere, wanted the 2 non-flown E2062/2063 engines to be TOGETHER on the Artemis-2 CoreStage test flight that will launch NASA astronauts into space.  Regardless of the the previous flight history, or lack thereof, all Core Stage sustainer engines will be controlled via brand new Engine Controllers from Honeywell
These engines are started on the ground and don't shut down until just prior to orbital insertion, taking some 9 minutes of burntime. SLS's CoreStage will not make it all the way to orbit and will stop short, similar to the STS Orbiter Vehicles.  The 1-1/2 Stage To Orbit architecture of STS/SLS requires this in order for Core Stage/External Tank disposal into the Indian/Pacific ocean.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
And here's E-2063 being assembled at AJR in 2014


attachments
1) RS25 install matrix (new build 2062 and 2063 scheduled for Artemis-2)
2) RS25 install orientation
3) older slide showing the terms and requirements of full Block RS25-D/SSME aka HERITAGE, the SLSME "ADAPTATION" and finally, the brand new "RESTART" engines which will run at an unprecedented 111% Rated Power Level.
« Last Edit: 11/04/2022 03:58 pm by Hog »
Paul

Offline Vahe231991

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Re: Artemis II (EM-2) UPDATE thread - May 2024
« Reply #24 on: 11/16/2022 10:23 pm »
From Military Embedded Systems website:
Quote
Moreover, Ladwig states, the Artemis II vehicle will reuse select avionics from the Artemis I crew module; this practice will continue to dramatically increase, she says, to the point where the Artemis III pressure vessel capsule will be entirely refurbished for the Artemis VI mission.

Offline Vahe231991

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Re: Artemis II (EM-2) UPDATE thread - May 2024
« Reply #25 on: 12/08/2022 05:22 pm »
The latest on plans to repair the ML-1 launcher to ensure smooth liftoff of the Artemis 2 with only some minimal damage to the launch pad:
https://www.nasaspaceflight.com/2022/12/ml-rollback-mod-timelines/

Since the ML-1 launcher was built for the Ares launch vehicle, and is more than a decade old, NASA shouldn't be surprised that it wants modifications to the ML-1 launcher because it knows that it sat idle for many years before it decided to use the ML-1 for the SLS rocket. Let's hope that the process of repairing the ML-1 launcher takes about five to six months to allow for NASA to prepare for launch of Artemis 2 while picking the crew for the Artemis 2 mission.

Offline Vahe231991

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Re: Artemis II (EM-2) UPDATE thread - May 2024
« Reply #26 on: 12/12/2022 12:26 am »
From the Hill website:
Quote
NASA announced Sunday it will name the spaceflight crew of the Artemis II mission in early 2023, following the successful completion of the first phase of its mission to the moon.

Vanessa Wyche, director of NASA’s Johnson Space Center, said at a press conference just hours after the splashdown of the Orion spacecraft that the team wanted to wait until the completion of Artemis I to make an announcement.

Offline Jim

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Re: Artemis II (EM-2) UPDATE thread - May 2024
« Reply #27 on: 12/21/2022 09:17 pm »

Since the ML-1 launcher was built for the Ares launch vehicle, and is more than a decade old, NASA shouldn't be surprised that it wants modifications to the ML-1 launcher because it knows that it sat idle for many years before it decided to use the ML-1 for the SLS rocket.

That makes no sense.  Its age and fact that it sat idle have nothing to do with NASA wanting to do mods and being "surprised"

Offline eeergo

Re: Artemis II (EM-2) UPDATE thread - May 2024
« Reply #28 on: 01/08/2023 07:49 pm »
Avionics boxes off Artemis I's Orion are now coming out and starting to get tested and refurbished as appropriate for use on Artemis II, per multiple accounts online.

When will this and related threads be moved to the "Missions to the Moon" subforum, whose subtitle mentions this mission explicitly?
-DaviD-

Offline Vahe231991

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Re: Artemis II (EM-2) UPDATE thread - May 2024
« Reply #29 on: 01/08/2023 08:37 pm »
Avionics boxes off Artemis I's Orion are now coming out and starting to get tested and refurbished as appropriate for use on Artemis II, per multiple accounts online.

When will this and related threads be moved to the "Missions to the Moon" subforum, whose subtitle mentions this mission explicitly?
NASA has to announce the crew for the Artemis 2 mission first, and then give the latest updates on eventual final assembly of the SLS rocket earmarked for Artemis 2, after which someone will find it appropriate to move this thread to the "Missions to the Moon" subforum.

Offline eeergo

Re: Artemis II (EM-2) UPDATE thread - May 2024
« Reply #30 on: 01/11/2023 02:15 pm »
The latest on plans to repair the ML-1 launcher to ensure smooth liftoff of the Artemis 2 with only some minimal damage to the launch pad:
https://www.nasaspaceflight.com/2022/12/ml-rollback-mod-timelines/

From that article:

Quote
Once [at the VAB], the ML will spend between four to six weeks [already completed, seems right on the most optimistic schedule] undergoing continued post-launch assessments before the Crawler Transporter teams will pick up the ML and move it out of the VAB to the West Park Site — which is located to the north of the VAB and is the western-most of the two ML park sites.

“We’re pretty definite on January 2023,” said Sumner. “Sometime in January, we should be at the West Park Site.” [they are]

There, the ML will undergo a majority of its refurbishment and modification work, including installation of the critical Emergency Egress System hardware which will be needed for crew flight operations with Artemis II. [...] While at the West Park Site, the access platforms for the four egress baskets — which would be used to transport personnel safely away from the tower in the event of an emergency — will be installed. [...]

Overall, the ML is expected to spend a few months at the West Park Site, though explicit timelines are not currently known due to the uncertainty that remains in post-Artemis I launch damage refurbishment timelines. [ shouldn't be an issue now, looking forward to the new estimates]

Also at the West Park Site, pneumatics changes will be carried out on the crew access level. Teams will also install breathing air and gaseous nitrogen stations and systems that would be needed in the event of emergencies.

Additional work at the West Park Site will also include modifications to the ignition overpressure protection/sound suppression system that were planned before the Artemis I launch.

So looking good (for now) for Artemis II, considering the status of hardware reuse for both the ML and Orion's CM, and the new hardware currently not in the critical path.

https://twitter.com/NASAGroundSys/status/1613187952267362309

Offline yg1968

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Re: Artemis II (EM-2) UPDATE thread - May 2024
« Reply #31 on: 01/17/2023 06:03 pm »
Quote from: Marcia Smith
At NAC, Bill Nelson says the Artemis II crew will be announced "later in the spring."

https://twitter.com/SpcPlcyOnline/status/1615374298981584899

Offline yg1968

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Offline yg1968

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Re: Artemis II (EM-2) UPDATE thread - May 2024
« Reply #33 on: 01/31/2023 06:11 pm »
Kennedy Prepares Facilities, Spacecraft for Artemis II Mission:
https://www.nasa.gov/feature/kennedy-prepares-facilities-spacecraft-for-artemis-ii-mission

Offline eeergo

Re: Artemis II (EM-2) UPDATE thread - May 2024
« Reply #34 on: 02/07/2023 08:50 am »
Progress Underway on Moon Rockets for NASA’s Crewed Artemis Missions:
https://www.nasa.gov/exploration/systems/sls/progress-underway-on-moon-rockets-for-nasa-s-crewed-artemis-missions.html

Is this the first clear image of the Core Stage's engine section manifold toward the engines?

Nice views at the SRBs in storage too! Testing racks spooling up to support flight simulation testing for this mission.
-DaviD-

Offline yg1968

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Re: Artemis II (EM-2) UPDATE thread - May 2024
« Reply #35 on: 02/07/2023 02:07 pm »
NASA practices Artemis II splashdown recovery mission (video included in the article):
https://www.fox35orlando.com/news/nasa-practices-artemis-ii-splashdown-recovery-mission

Offline yg1968

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Re: Artemis II (EM-2) UPDATE thread - May 2024
« Reply #36 on: 02/10/2023 12:14 am »
Quote from: NASA OIG
Just Announced! @NASAOIG will examine NASA’s progress toward achieving its Artemis II goals, including the impact of Artemis I’s mission results.

https://twitter.com/NASAOIG/status/1623475495927947264

Offline bd1223

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Re: Artemis II (EM-2) UPDATE thread - May 2024
« Reply #37 on: 02/10/2023 08:35 pm »
Is this the first clear image of the Core Stage's engine section manifold toward the engines?
...

No, the engine section is on the right.  The manifold in the center of the photo is the bottom of the LH2 tank.

Offline eeergo

Re: Artemis II (EM-2) UPDATE thread - May 2024
« Reply #38 on: 02/11/2023 11:55 am »
Is this the first clear image of the Core Stage's engine section manifold toward the engines?
...

No, the engine section is on the right.  The manifold in the center of the photo is the bottom of the LH2 tank.

Right, that's what I meant: first clear photo of the unassembled ES and the manifold at the bottom of the tankage.
-DaviD-

Online FutureSpaceTourist

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Re: Artemis II (EM-2) UPDATE thread - May 2024
« Reply #39 on: 02/13/2023 09:19 pm »
https://twitter.com/senbillnelson/status/1625257617273520128

Quote
Big day for the #Artemis program as teams at @NASA’s Michoud Assembly Facility in New Orleans have successfully rotated the engine section for Artemis II. This "flip" is an important milestone for the rocket — and means the core stage is almost complete!

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