5 ms·

Thats great news! I wonder though, if there will ever be a need for another repair mission, could ie. Crew Dragon support such a mission or has that possibility

Thats great news! I wonder though, if there will ever be a need for another repair mission, could ie. Crew Dragon support such a mission or has that possibility passed with the retirement of the shuttles?

blhack 5y ago
Does crew dragon have the appropriate airlock to allow for a spacewalk?
- jvzr 5y ago
  In case it wasn't a rhetorical question, Crew Dragon does not have an airlock that would allow for a suited astronaut to leave the craft while maintaining atmosphere inside it. Plus, a big thing missing is a manipulator arm, such as Canadarm, which was used to capture the telescope, and essentially make the shuttle and telescope one body.
  - nomadluap 5y ago
    I always thought it would be interesting if Spacex developed a "dragon utility module". It would launch in Dragon's trunk and consist of a docking port on one end, an airlock on the other, a miniature manipulator arm and a bunch of cargo mounted around the outside. After separating from the second stage the Dragon would flip around and dock to this module, which would give it all the extra bits needed for a mission like servicing the Hubble.
- mLuby 5y ago
  I don't think it does. But what's to stop the whole (limited) crew from suiting up (without MMUs), slowly venting the interior air, doing the EVA, then returning and re-pressurizing the atmosphere from interior tanks? My guess is it's just uncertified for that procedure, not that it's impossible. And there's no recourse if one of the suits fail.
  - mikepurvis 5y ago
    This is how it worked for all of the capsule-based missions— the entire cabin space is the airlock.
    - rtkwe 5y ago
      Cabins were also much simpler back then there's a lot more to break in a modern capsule compared to Mercury and Apollo. Actual toilets for starters.
  - p_l 5y ago
    There might also be not enough space to move with a full EVA suit - which is a wildly different thing from in-capsule survival suit.
trashface 5y ago
Scott Manley had a video on you tube about this recently, don't remember which one, but it may have been where he was talking about the computer problem itself. As I understand it, there is no current vehicle that combines the Space Shuttle's ability to both dock with a satellite (via a docking arm) and allow astronauts to do EVA. So I guess James Webb is possibly screwed if it has a problem in orbit like the Hubble's mirror issue. Too bad we won't bring back the Space Shuttle.
- rtkwe 5y ago
  If Starship actually turns out like Musk has laid out it probably could just given it's size but yeah for now there's no extant vehicle that could service either. I bet we'll also start to see robotic servicing missions proven out which is another possible solution should JWST (or another telescope) need service.

blhack 5y ago

Does crew dragon have the appropriate airlock to allow for a spacewalk?

jvzr 5y ago
In case it wasn't a rhetorical question, Crew Dragon does not have an airlock that would allow for a suited astronaut to leave the craft while maintaining atmosphere inside it. Plus, a big thing missing is a manipulator arm, such as Canadarm, which was used to capture the telescope, and essentially make the shuttle and telescope one body.
- nomadluap 5y ago
  I always thought it would be interesting if Spacex developed a "dragon utility module". It would launch in Dragon's trunk and consist of a docking port on one end, an airlock on the other, a miniature manipulator arm and a bunch of cargo mounted around the outside. After separating from the second stage the Dragon would flip around and dock to this module, which would give it all the extra bits needed for a mission like servicing the Hubble.
mLuby 5y ago
I don't think it does. But what's to stop the whole (limited) crew from suiting up (without MMUs), slowly venting the interior air, doing the EVA, then returning and re-pressurizing the atmosphere from interior tanks? My guess is it's just uncertified for that procedure, not that it's impossible. And there's no recourse if one of the suits fail.
- mikepurvis 5y ago
  This is how it worked for all of the capsule-based missions— the entire cabin space is the airlock.
  - rtkwe 5y ago
    Cabins were also much simpler back then there's a lot more to break in a modern capsule compared to Mercury and Apollo. Actual toilets for starters.
- p_l 5y ago
  There might also be not enough space to move with a full EVA suit - which is a wildly different thing from in-capsule survival suit.

trashface 5y ago

Scott Manley had a video on you tube about this recently, don't remember which one, but it may have been where he was talking about the computer problem itself. As I understand it, there is no current vehicle that combines the Space Shuttle's ability to both dock with a satellite (via a docking arm) and allow astronauts to do EVA. So I guess James Webb is possibly screwed if it has a problem in orbit like the Hubble's mirror issue. Too bad we won't bring back the Space Shuttle.

rtkwe 5y ago
If Starship actually turns out like Musk has laid out it probably could just given it's size but yeah for now there's no extant vehicle that could service either. I bet we'll also start to see robotic servicing missions proven out which is another possible solution should JWST (or another telescope) need service.