Author Topic: ML-1 Updates and discussion  (Read 8440 times)

Offline FutureSpaceTourist

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ML-1 Updates and discussion
« on: 07/07/2023 05:43 am »
We don’t appear to have an ML-1 thread (ML-2 thread is here).

https://twitter.com/nasagroundsys/status/1677056567131209730

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🏗️ Mobile Launcher 1 Upgrades for Artemis

The mobile launcher's 92k-pound crew access arm will provide flight crew with access to the @NASA_Orion spacecraft atop the @NASA_SLS rocket.

This functional test is the start of validating that the access arm can retract within 45 seconds from its extended 190° position in case of an emergency on Launch Pad 39B.

Offline FutureSpaceTourist

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Re: ML-1 Updates and discussion
« Reply #1 on: 07/07/2023 05:44 am »
https://twitter.com/nasagroundsys/status/1677031562863312899

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🏗️ Mobile Launcher 1 Upgrades for Artemis

Today, teams at the mobile launcher west park site at @NASAKennedy performed a functional test of the crew access arm.

This time-lapse shows the retraction of the arm during today's test. More to come...

https://twitter.com/nasagroundsys/status/1677063959881424897

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🏗️ Mobile Launcher 1 Upgrades for Artemis

This time-lapse from today shows the mobile launcher's crew access arm in motion as teams from Exploration Ground Systems conduct a functional test at @NASAKennedy's west park site.

This test of the 92k-pound arm and hinges, in addition to more coming soon, are all in preparation for future crewed #Artemis missions.

Offline FutureSpaceTourist

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Re: ML-1 Updates and discussion
« Reply #2 on: 07/07/2023 05:47 am »
https://twitter.com/nasagroundsys/status/1674841566400114688

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Something has been added to mobile launcher 1 at @NASAKennedy.

Stay tuned for more... #Artemis

https://twitter.com/nasagroundsys/status/1674856841463881735

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Yesterday, teams at the mobile launcher west park site at @NASAKennedy re-installed a modified "rainbird" on mobile launcher 1.

Rainbirds are large water nozzles located on 0-deck of the mobile launcher that release high volumes of water when the Space Launch System rocket lifts off. The rainbird system protects the vehicle, launch pad, and mobile launcher by absorbing some of the heat and energy generated during launch.

https://twitter.com/nasagroundsys/status/1674877512755576834

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📷 More photos of yesterday's modified rainbird re-installation. The rainbird system helped reduce damage to the mobile launcher and ensured a successful liftoff for @NASAArtemis I.

Next Steps: Teams will continue making upgrades to mobile launcher 1 at the park site at @NASAKennedy. Stay tuned for ongoing coverage.

Offline FutureSpaceTourist

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Re: ML-1 Updates and discussion
« Reply #3 on: 07/18/2023 06:15 pm »
https://twitter.com/nasagroundsys/status/1681365958567378945

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🏗 Mobile Launcher 1 Upgrades for Artemis

This weekend, teams at the west park site at @NASAKennedy worked to lift a platform that will be used for mobile launcher 1's emergency egress system.

This platform will be where the emergency egress system baskets interface with the tower, which will allow the crew of #Artemis II to ride down to Launch Pad 39B in the case of an emergency.

Offline Robotbeat

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Chris  Whoever loves correction loves knowledge, but he who hates reproof is stupid.

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Offline Orbiter

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Re: ML-1 Updates and discussion
« Reply #5 on: 08/16/2023 11:01 am »
EGS is getting ready to roll the ML to LC-39B

https://twitter.com/NASAGroundSys/status/1691589419055067640
KSC Engineer, astronomer, rocket photographer.

Offline Orbiter

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Re: ML-1 Updates and discussion
« Reply #6 on: 08/16/2023 11:57 am »
KSC Engineer, astronomer, rocket photographer.

Offline catdlr

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Re: ML-1 Updates and discussion
« Reply #7 on: 08/16/2023 12:58 pm »
This is the place to watch when it moves out:

Tony De La Rosa, ...I'm no Feline Dealer!! I move mountains.  but I'm better known for "I think it's highly sexual." Japanese to English Translation.

Offline FutureSpaceTourist

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Re: ML-1 Updates and discussion
« Reply #8 on: 08/16/2023 03:06 pm »
https://twitter.com/_mgde_/status/1691825944347230223

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For the first time since the Artemis 1 launch campaign, ML-1 is on the move towards LC-39B to verify repairs and modifications made since launch.

📸 - @NASASpaceflight

Follow along here ➡️ nsf.live/space-coast

Offline FutureSpaceTourist

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Re: ML-1 Updates and discussion
« Reply #9 on: 08/16/2023 05:25 pm »
https://twitter.com/_mgde_/status/1691839828793381263

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Casual KSC traffic jam.

“Ope sorry just got stuck behind the heaviest self powered & moving object in the world atm”

📸 - @NASASpaceflight

Offline FutureSpaceTourist

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Re: ML-1 Updates and discussion
« Reply #10 on: 08/16/2023 11:23 pm »

Offline FutureSpaceTourist

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Re: ML-1 Updates and discussion
« Reply #11 on: 08/17/2023 01:54 pm »
https://twitter.com/nasagroundsys/status/1692169847902175355

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🏁 Now: Our teams are finishing their crawl of mobile launcher 1 to Launch Pad 39B.

As we get closer to launching @NASAArtemis II, our teams will conduct various tests and continue upgrades for both the mobile launcher 1 and the launch pad.

Offline FutureSpaceTourist

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Re: ML-1 Updates and discussion
« Reply #12 on: 08/18/2023 05:07 pm »
https://twitter.com/nasaspaceflight/status/1692556913194537369

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The CAA (Crew Access Arm) has swung out with the White Room, as it does with SLS sat on the ML-1, to allow astronauts and pad crew to access Orion.

nsf.live/spacecoast

Offline FutureSpaceTourist

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Re: ML-1 Updates and discussion
« Reply #13 on: 08/27/2023 02:48 pm »
https://twitter.com/nasagroundsys/status/1695800864600989777

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In June we covered our team's re-installation of a rainbird head on mobile launcher 1; now, all five rainbird heads have been installed in preparation for the @NASAArtemis II mission.

The new designs, "Pringle Head" and "Beak," divert water away from the mobile launcher 1's cameras to support better launch imagery.

Offline FutureSpaceTourist

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Re: ML-1 Updates and discussion
« Reply #14 on: 09/05/2023 02:00 pm »
https://twitter.com/nasaspaceflight/status/1699048830719656095

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Checking in on NASA's huge Mobile Launchers for SLS, NSF's Nathan Barker (@NASA_Nerd) spoke with David Sumner, Senior Project Manager for NASA’s Exploration Ground Systems (EGS).

https://www.nasaspaceflight.com/2023/09/nasa-ml-1-artemis-ii-ml-2-construction/

Offline DanClemmensen

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Re: ML-1 Updates and discussion
« Reply #15 on: 09/05/2023 02:28 pm »
from tweet:
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Checking in on NASA's huge Mobile Launchers for SLS, NSF's Nathan Barker (@NASA_Nerd) spoke with David Sumner, Senior Project Manager for NASA’s Exploration Ground Systems (EGS).

https://www.nasaspaceflight.com/2023/09/nasa-ml-1-artemis-ii-ml-2-construction/
From the NSF article, it's clear that ML-1 needed both extensive repair work and also some design upgrades. Since ML-1 is not needed until start of stacking of Artemis II, they were not under the intense time pressure like the Starship OLM, so schedule comparison is not really relevant, but it looks like ML-1 repair/upgrade will take more than a year, While OLM upgrade took about 5 months.

Cost might be a better comparison. Any guesses on the costs for the ML-1 repair/upgrade versus the OLM repair/upgrade?

Offline woods170

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Re: ML-1 Updates and discussion
« Reply #16 on: 09/06/2023 09:36 am »
From Nathan's most recent article:

Quote from: Nathan Barker
Not since STS-116 when Space Shuttle Discovery launched in December of 2006 has a flight crew walked across a crew access arm at 39B. “We have to certify the Crew Access Arm for Artemis II”, said Sumner. “The CAA requires over 100 swings that we have to do for certification, so we’re going to be in a position here in the next couple weeks to start those swings, and we’re ready as the hardware is basically complete.”

Why the h*ck must the ML-1 CAA go thru over 100 swings to be crew certified?

The last time a CAA was crew certified (the Crew Dragon CAA at LC-39A) it went thru less than a dozen swings.

What's the difference here? What makes the ML-1 CAA so different that it requires ~10 times as many swings to be crew certified?
« Last Edit: 09/06/2023 09:38 am by woods170 »

Offline woods170

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Re: ML-1 Updates and discussion
« Reply #17 on: 09/07/2023 02:32 pm »
From Nathan's most recent article:

Quote from: Nathan Barker
Not since STS-116 when Space Shuttle Discovery launched in December of 2006 has a flight crew walked across a crew access arm at 39B. “We have to certify the Crew Access Arm for Artemis II”, said Sumner. “The CAA requires over 100 swings that we have to do for certification, so we’re going to be in a position here in the next couple weeks to start those swings, and we’re ready as the hardware is basically complete.”

Why the h*ck must the ML-1 CAA go thru over 100 swings to be crew certified?

The last time a CAA was crew certified (the Crew Dragon CAA at LC-39A) it went thru less than a dozen swings.

What's the difference here? What makes the ML-1 CAA so different that it requires ~10 times as many swings to be crew certified?

Turns out that the answer to my question is available in L2. There is IMO some rationale in it, but I will point out that SpaceX still did this a helluvalot faster.
Link for those who have access to L2.

Offline FutureSpaceTourist

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Re: ML-1 Updates and discussion
« Reply #18 on: 09/19/2023 05:24 am »
https://twitter.com/nasaspaceflight/status/1703856531572179323

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Water Deluge System test at 39B during the continuing pad operations for Mobile Launcher 1 (ML-1).

Taken from live views here: nsf.live/spacecoast

Also check out our recent video on the variety of water deluge systems:


Offline FutureSpaceTourist

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Re: ML-1 Updates and discussion
« Reply #19 on: 09/19/2023 09:33 pm »
https://flic.kr/p/2p42ydD

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NASA Kennedy
KSC-20230720-PH-FMX01_0002


Teams with Exploration Ground Systems at NASA’s Kennedy Space Center in Florida make upgrades and repairs on mobile launcher 1 at its park site location on July 20, 2023, ahead of the first critical ground testing for Artemis II. Under Artemis, the mobile launcher will transport NASA’s Space Launch System rocket and Orion spacecraft to Kennedy’s Launch Complex 39B for liftoff. Artemis II will be the first Artemis mission flying crew aboard Orion. Photo credit: NASA/Frank Michaux
NASA image use policy.

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