Author Topic: SpaceX EVA suit  (Read 236291 times)

Online Ben Baley

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Re: SpaceX EVA suit
« Reply #600 on: 03/15/2023 10:35 am »
NASA is unveiling the Axiom suits for Artemis III today, maybe after we see what they've come up with SpaceX will release some details on their suits. From what we've heard and because they're planning on using them this summer,  they must be substantially complete ( at least for this iteration) so why no updates  :'(

If i could stomach getting a Twitter account i could bombard Elon and Jared with questions, but I guess I'm just stuck waiting.

Offline FutureSpaceTourist

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Re: SpaceX EVA suit
« Reply #601 on: 09/25/2023 07:32 am »
Jack Gregory Wright
@JackwrightNYC
Last week, I sat down with the crew of Polaris Dawn,  the next @SpaceX  mission blasting off in Q1 next year.

The crew will go deeper into outer space than anyone since the moon landings - and then exit their vehicle.

Before our interview, Commander Jared Isaacman - and two of his ex-Top Gun mates - showed me what G-force is...

Out now on The Intersection: https://apple.co/3RzQR2y

@PolarisProgram @elonmusk @rookisaacman

https://twitter.com/JackwrightNYC/status/1706075972204658967

On the suit Jared said:

Quote
Its going though its final acceptance testing in the vacuum chambers. Were going to do a final ATP check in the chamber and then were going to test this thing out.

Online Asteroza

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Re: SpaceX EVA suit
« Reply #602 on: 09/25/2023 10:44 pm »

On the suit Jared said:

Quote
Its going though its final acceptance testing in the vacuum chambers. Were going to do a final ATP check in the chamber and then were going to test this thing out.

Uh, does this mean they suit up in a vacuum chamber to test after ATP? Is there even such a place for EVA suits with humans in them to run around in a vacuum environment?

Offline John Santos

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Re: SpaceX EVA suit
« Reply #603 on: 09/25/2023 11:17 pm »

On the suit Jared said:

Quote
Its going though its final acceptance testing in the vacuum chambers. Were going to do a final ATP check in the chamber and then were going to test this thing out.

Uh, does this mean they suit up in a vacuum chamber to test after ATP? Is there even such a place for EVA suits with humans in them to run around in a vacuum environment?

There are many such vacuum chambers where suits and spacecraft can be tested.  For testing a suit, they carry the suit in through the door, seal it up, turn it on, plug in to electrical, air and cooling umbilical connectors, or not, depending on what they are specifically testing, close the door, seal the valves and air vents, and pump the air out, all the while checking for correct functioning and leaks.  For human testing, someone puts the suit on, walks in through the door, and, plugs in (or not), closes the door and does the same testing.  The person wearing the suit can walk around, bend the arms and legs, work with the gloves, test the radio, etc.  They pump the air out of the chamber slowly so they can continuously check for leaks or other problems, and simply stop the pumps and open a valve to let air back in.  It only takes a few seconds to "return to Earth" if there is a problem.

Prior to that, suits can (and always are) tested in a normal room, just by inflating them above normal atmospheric pressure.  If there are leaks, the suit won't hold pressure.  If there are design problems, such as joints that don't work or are hard to use, this can all be tested the same way.  This sort of test is performed hundreds of times during the design and development of a spacesuit.

Spacesuits can (and are) tested underwater in a big swimming pool.  NASA has a multistory swimming pool in Houston where all the ISS spacewalks are rehearsed in great detail.  (This is for training, not suit testing, but any new suit would be tested the same way.)  Scuba divers are always present in case anything goes wrong.

ATP is acceptance testing.  Each individual suit must be separately tested on Earth before delivery to the customer (NASA, SpaceX, or whoever is planning to use the suit.)  This occurs AFTER the hundreds or thousands of development tests, when the design has been settled upon and tested.  The suits undergoing ATP are production suits, intended for actual use in space.  This is the final testing before they are launched into space with the astronauts who will be using them.

Offline woods170

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Re: SpaceX EVA suit
« Reply #604 on: 09/26/2023 08:01 am »

On the suit Jared said:

Quote
Its going though its final acceptance testing in the vacuum chambers. Were going to do a final ATP check in the chamber and then were going to test this thing out.

Uh, does this mean they suit up in a vacuum chamber to test after ATP? Is there even such a place for EVA suits with humans in them to run around in a vacuum environment?

Not exactly running "around", but there are vacuum chambers large enough to exercise and walk around, or walk or run on a treadmill. And those have been around since Apollo.

https://www.nasa.gov/feature/50-years-ago-apollo-suit-backpack-passes-vacuum-testing


Similar, more recent:
https://www.nasa.gov/content/astronaut-spacesuit-testing-for-orion-spacecraft
https://www.space.com/37518-orion-spacesuits-vacuum-test-nasa-photos.html



Some of these vacuum chambers are large enough to put the entire Apollo CSM in, including the crew, and test at vacuum:


Offline FutureSpaceTourist

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Re: SpaceX EVA suit
« Reply #605 on: 10/05/2023 02:29 pm »
Crosspost from Elons current IAC chat:

https://twitter.com/joroulette/status/1709937779097157872

Quote
Musk says the spacesuit that SpaceX is developing for the private Polaris dawn spacewalking mission is expected to evolve into one that can be used to walk on the Moon and Mars, but doesn't give timelines.

Offline jfallen

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Re: SpaceX EVA suit
« Reply #606 on: 11/21/2023 04:50 pm »
The Astronaut Training video with Jared Isaacman and Tim Dodd didn't really get into the EVA suit much (or as much as I would have liked).  Isaacman said they had been in the suits for med-rate testing.  Has there been any indication that they will release images prior to Polaris 1?  If that mission is still on for 2024Q1, time is running short.

Offline snotis

Re: SpaceX EVA suit
« Reply #607 on: 12/13/2023 12:19 am »
Cross-post from Polaris Program thread:

Jared Issacman with updates on the Polaris Down mission and the new EVA suit over on X/Twitter:

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Hello Felix!
- I am at SpaceX today for EVA suit testing. This is an evolution of the dev suits.
- Suit pics will be released in advance of mission but I don't know when.
- ~April is the goal to launch & the pace of training is accelerating.
Merry Christmas & Happy Holidays.

https://x.com/rookisaacman/status/1733535996577517810

Quote
- Building and certifying new EVA suits for starters.  There is a big difference between an IVA suit that is a last line of defense in the vehicle vs. suit engineered from the start to be exposed to vacuum outside the spaceship.  That includes suit changes for mobility, life support redundancy, sun glare, some resiliency to MMOD.
- Similarly, the vehicle was designed to go to vacuum only in an emergency.  There are changes to software and ECLSS hardware to make an EVA a nominal operation.
- Laser-based communication over the Starlink constellation is not an easy task either.  Its not just turning the router switch to the ON position.   Every draco firing could break a link.
- We are flying higher and closer to the Van Allen belts than anyone has gone since Apollo 17.  The radiation exposure during those orbits over a few days is the equivalent to months on the ISS.  Avionics don't like radiation which means there is a lot to analyze and sim to get right.

SpaceX engineers are doing an outstanding job tackling big problems very quickly.

https://x.com/rookisaacman/status/1733618196769284432

Offline yg1968

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Re: SpaceX EVA suit
« Reply #608 on: 02/04/2024 02:08 am »
See below:

I think that this has been mentioned before but Isaacman says at 26 minutes of the video (linked in the post directly above this one) that the goal of the lower cost SpaceX spacesuits is that they will eventually be used by hundreds or thousands of astronauts that will walk on the Moon and Mars.

Incidentally, this had already been mentioned by Elon Musk during his SpaceX update last month at 26m-27m of his presentation:

https://twitter.com/SpaceX/status/1745941814165815717

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