SpaceX Dragon 2 Updates and Discussion - Thread 3

[nacnud]

I read somewhere, I can't recall now but is was one of the sites with these new images, that the seats tilt back to bring the screen nearer rather than the screen moving.

[StevenV]

I was a little surprised by one of the pictures in the Teslarati spacesuit article. Dragon 2 will use a pure oxygen environment?
https://www.teslarati.com/spacex-crew-dragon-simulator-spacesuit-gallery/#jp-carousel-81456

[rpapo]

I was a little surprised by one of the pictures in the Teslarati spacesuit article. Dragon 2 will use a pure oxygen environment?
https://www.teslarati.com/spacex-crew-dragon-simulator-spacesuit-gallery/#jp-carousel-81456

Noticed that.  I thought that after Apollo 1 NASA went away from pure oxygen environments entirely.

[kevinof]

Not sure I believe that comment on the photo. Doubt Nasa would ever go down that road again. Will need to get it confirmed somewhere else.

I was a little surprised by one of the pictures in the Teslarati spacesuit article. Dragon 2 will use a pure oxygen environment?
https://www.teslarati.com/spacex-crew-dragon-simulator-spacesuit-gallery/#jp-carousel-81456

[ncb1397]

I was a little surprised by one of the pictures in the Teslarati spacesuit article. Dragon 2 will use a pure oxygen environment?
https://www.teslarati.com/spacex-crew-dragon-simulator-spacesuit-gallery/#jp-carousel-81456

Noticed that.  I thought that after Apollo 1 NASA went away from pure oxygen environments entirely.

Nope, pure oxygen was still used post Apollo 1.

[AbuSimbel]

I thought even Apollo still used pure oxygen after Apollo 1?

[douglas100]

I don't see how Dragon 2 can use a pure oxygen environment. It's incompatible with ISS.

[woods170]

I thought even Apollo still used pure oxygen after Apollo 1?

Correct. The cabin environment and what the crew breathed before and during launch was a mixture of nitrogen and oxygen. But after TLI the cabin environment, and what the crew breathed in their suits was slowly changed to 100% pure oxygen.

[woods170]

I was a little surprised by one of the pictures in the Teslarati spacesuit article. Dragon 2 will use a pure oxygen environment?
https://www.teslarati.com/spacex-crew-dragon-simulator-spacesuit-gallery/#jp-carousel-81456

Noticed that.  I thought that after Apollo 1 NASA went away from pure oxygen environments entirely.

IMO it is likely that the mention of a 100% pure oxygen environment on Crew Dragon is an assumption from the writer of the article on Teslarati.
No way that a pure oxygen environment on Crew Dragon is compatible with the ISS atmosphere.

[mme]

The tilt of the seats is interesting. Much more upright than the flat-on-the-back position of the Shuttle or Starliner. Can the tilt be altered? And does the control panel hinge down to a position convenient for the crew in the middle seats?

I think (but don't know) that simulator is rotated for ease of access/use in the classroom. It's for training on using the controls and interfaces only.

[Rik ISS-fan]

And the simulator  (https://twitter.com/thejackbeyer)

I love the simplicity of this ground simulator. Smart to use lineair slides to move the control-panel closer to the seats.

[pospa]

Three pics from media event today: CD upper hatch, training cabin interior from Hawthorne (to me more realistic then the unit in JSC) and interior design sketches.

Correct, the HQ simulator is more up to date than the JSC one. Still no hand-rails, camera holders and seat-mounted flight controls though (sorry, couldn't resist the dig    )

I don't know how yours, but my eyes see quite long black hand-rail arround the side hatch and black handle on the inside wall in this article: https://www.teslarati.com/spacex-crew-dragon-simulator-spacesuit-gallery/
Also visible a lot of cabinet doors below, behind and above the crew seats which were not visible in JSC unit. And still we do not see the final flight interior.

Woods, plese understand that my suggestion about camera holders and seat mounted controls was just an example of what might be still missing in the interior of JSC training mockup. It was not ment like mandatory equipment that will be there for sure, only to explain that empty walls and the whole interior is very likely not the final cabin arrangement.

Let's leave our argument parked untill we see real flight Crew Dragon ready for DM-2 mission. Then we can evaluate and decide who was right and the other one can honestly accept defeat.

[TripleSeven]

And the simulator  (https://twitter.com/thejackbeyer)

I love the simplicity of this ground simulator. Smart to use lineair slides to move the control-panel closer to the seats.

this is really quite standard in the commercial aviation training industry...people are even building them themselves and renting them out

[WindnWar]

New article on it on Ars. Nice pics, sums up the importance to SpaceX that people will be in these.


https://arstechnica.com/science/2018/08/spacex-reveals-the-controls-of-its-dragon-spacecraft-for-the-first-time/

[woods170]

I don't know how yours, but my eyes see quite long black hand-rail arround the side hatch and black handle on the inside wall in this article: https://www.teslarati.com/spacex-crew-dragon-simulator-spacesuit-gallery/

Bad example. That hand-rail is already present in the JSC mockup. See image of the JSC mockup below.

Granted, there are notable differences between the JSC mockup and the Hawthorne mockup but the additional outfitting in the Hawthorne mockup is most decidedly not of the kind you mentioned.

There are additional panels, but the basic clean lines of the interior shell are the same. The seats are closer to the final model: the basic design is unchanged, just wider support areas around the shoulders and head. Some of the lighting units are in different locations but still as sleek looking as in the JSC mockup.

The interior of the Hawthorne mockup is basically as clean as the JSC one. The additional outfitting you originally referred to is mostly in the stowage areas being defined in the Hawthorne mockup.

[jpo234]

From The Chance to Fly SpaceX's New Crew Dragon Is a Dream Come True for Astronauts



This is the DM-2 Dragon under construction.

Note: I only linked to the image. I'm not sure about uploading a copy.

[douglas100]

The tilt of the seats is interesting. Much more upright than the flat-on-the-back position of the Shuttle or Starliner. Can the tilt be altered? And does the control panel hinge down to a position convenient for the crew in the middle seats?

I think (but don't know) that simulator is rotated for ease of access/use in the classroom. It's for training on using the controls and interfaces only.

Just to be clear: I was referring to the seats in both mock ups (JSC and Hawthorne) not the simulator consisting of the two upright seats and screens only. The mock up seats appear to me to be tilted a bit above the horizontal. Of course wide angle lenses in confined spaces make it difficult to judge. Anyway, thanks for the replies.

[mme]

The tilt of the seats is interesting. Much more upright than the flat-on-the-back position of the Shuttle or Starliner. Can the tilt be altered? And does the control panel hinge down to a position convenient for the crew in the middle seats?

I think (but don't know) that simulator is rotated for ease of access/use in the classroom. It's for training on using the controls and interfaces only.

Just to be clear: I was referring to the seats in both mock ups (JSC and Hawthorne) not the simulator consisting of the two upright seats and screens only. The mock up seats appear to me to be tilted a bit above the horizontal. Of course wide angle lenses in confined spaces make it difficult to judge. Anyway, thanks for the replies.

Sorry, I misunderstood because of the proximity of the photo training simulator to your post.  I think some of that difference is just the angle the photo is taken from (most of the recent photos are from above) but Dragon's seats do seem to be slightly raised from the "flat on your back" position.

[Semmel]

Regarding pure oxygen.. if I was to design a capsule, I would demand that everything inside can sustain pure oxygen without going up in flames. Oxygen and nitrogen are stored separately. If N2 gets damaged and can't release gas, the atmosphere would become pure oxygen over time. Or there is a oxygen leak that increases the oxygen content uncontrollably or there is a cabin breach and there is not enough N2 for a sensible mixture.. there are many scenarios where pure oxygen can happen. In these cases, you don't want your crew to burn alife.
I am also pretty sure that pure oxygen is not the intended design, so I would guess it is for contingency only.

[Zed_Noir]

....

Unconventional thinking ($2.6B) versus conventional thinking ($4.2B). Why do you think the Crew Dragon pressure suit looks cool whereas the Starliner suit does not less so.

I called the Boeing spacesuit a "Smurf" suit considering the exterior colour.

The SpaceX spacesuit looks like some Zhodani battle armour from the Traveller RPG universe.