Stack Exchange Network

Stack Exchange network consists of 174 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

Questions tagged [airlock]

Questions about airlocks, used to exit a space craft, without venting all the interior atmosphere.

2
votes
1answer
61 views

How Is The Quest Joint Airlock Operated?

I have searched and searched and cant seem to find any media whatsoever that explains or outlines exactly how the airlock is operated. What exactly is the process you go through to open it, do you ...
5
votes
0answers
151 views

What is the efficiency of current airlock designs

I know that current airlocks in space cannot be 100% efficient. There must be some loss in atmosphere or in the very least a certain amount of power consumption. Can someone find statistics that ...
2
votes
1answer
60 views

Energy needed to open/close entry points in a rocket

In general, how often are air locks opened on a rocket? How much energy is needed to open and close the entry point?
4
votes
1answer
271 views

What is the fastest time for donning a space suit?

We have the question Time to prepare for EVA out of ISS that has a good and complete answer about the hours to days long process to prepare for an EVA from the ISS. My question is just about getting ...
5
votes
0answers
63 views

What is the mass of the Cabin Air Rack of the Quest Joint Airlock?

And where should I have looked for this information? The mass of the avionics rack would also be nice.
6
votes
2answers
443 views

Is the inner airlock hatch kept open in-between spacewalks on the ISS?

Clarification: I'm talking about the INNER airlock door. Keeping the airlock closed in-between spacewalks sounds safer: In case of accidental puncture of the outside of the module, this has no ...
1
vote
0answers
70 views

Are there any locked Airlocks in space? [duplicate]

An air lock in a space craft is a door used to move between the sealed environment of a space craft to the vacuum of space (or other craft) with minimal impact to the sealed environment. I always ...
6
votes
0answers
154 views

Could a Ferroliquid airlock work?

After looking at the previous question on liquid airlocks, I noted that the main problem with technology is that the force of gravity is far too weak on any body that an airlock would be a useful ...
28
votes
7answers
4k views

Could liquid airlocks work?

I was looking through an old copy of Moon Miner's Manifesto a while ago and found the concept of a liquid airlock in an early issue. It is on page 32 of this issue from 1988. It posits this as an ...
6
votes
2answers
560 views

How was the airlock for the ISS' minisat launchers installed?

I assume that the crew in ISS can manipulate the minisats manually before they are launched, so they must be launched through some kind of airlock. Was this airlock designed for this purpose, or do ...
4
votes
1answer
242 views

Could suitports on Orion/Dragon2/CST-100 make multiple EVA's available?

Suitports seem like a brilliant idea that saves lots of mass and complexity compared to an airlock, which traditionally is a dumb pressurizable gas wasting tube where the astronaut suits up. The first ...
3
votes
2answers
450 views

Do we have the technology to make large rotating airlocks?

I recently answered a question on Worldbuilding about space stations. In my answer, I proposed a toroidal station which would be composed up many small segments, each rotating. As was pointed out, ...
11
votes
2answers
2k views

What do the astronauts do whilst the air-lock cycles?

This answer seems to indicate the air-lock pressurization/de-pressurization is a drawn out process. Pressurisation is said to consume 45minutes (somewhat less in case of an emergency). ...
10
votes
1answer
1k views

How many airlocks does the ISS have?

In this context, I mean, a way to get out of the station, without depressurizing the entire station. The obvious ones are: Quest airlock on Unity (Node 1). Pirs (DC-1) airlock Does Poisk (DC-2? Or ...
57
votes
3answers
7k views

Is there no physical security in space, other than being in space?

I saw Gravity the other day and while visually and emotionally compelling, and besides the liberties taken with orbits, something else struck me as unrealistic, but I'm not sure if it is or isn't:...