Topic: My space shuttle sprung an air leak - What happens?

Does anyone know what the effects would be on humans in a Star Trek-style shuttle (e.g., no space suits) if it sprung an air leak. The lack of oxygen will eventually knock them out (which is what I want). However, there is also loss of heat and pressure. Loss of heat I understand. Loss of pressure I don't.
What happens to the human body? And which effect(s) come first? If I can rescue the unconscious crew shortly after they pass out, will they suffer any injuries?

Thanks.
Dirk

2 (edited by Kdot 2016-07-06 09:10:29)

Re: My space shuttle sprung an air leak - What happens?

A Star Trek type shuttle would act to plug the leak with some filler material stored in microscopic bladders in a layer on the inside of the hull, which is no fun, so let's assume you don't have that.

Let's also assume your characters don't have a hardening foam gun (the ejected foam would find the leak wherever it is - one need not know that part).

I mention these two facts because the lack of spacesuits implies there are so many failsafes that the spacesuit is statistically useless. Much like the absence of seatbelts in Star Trek style ships implies they never need to brake fast enough to kill passengers.

If you want realism, the enemy shot should contain an active agent to increase the size of the leak. (I know it's an enemy shot due to the source material - I also think it was handled well enough that we can accept the outcome).

Re: My space shuttle sprung an air leak - What happens?

Norm d'Plume wrote:

Does anyone know what the effects would be on humans in a Star Trek-style shuttle (e.g., no space suits) if it sprung an air leak. The lack of oxygen will eventually knock them out (which is what I want). However, there is also loss of heat and pressure. Loss of heat I understand. Loss of pressure I don't.
What happens to the human body? And which effect(s) come first? If I can rescue the unconscious crew shortly after they pass out, will they suffer any injuries?

Thanks.
Dirk

The fantasy concept is that if the external to-the-human-body pressure is lowered to near-vacuum fast enough, the body would explode (explosive decompression).  I like the imagery of such on Mars in Total Recall

http://1.bp.blogspot.com/_er_Nmxnv4TM/T … n+mars.jpg

Maybe there have been real experiments putting animals suddenly into vacuum but nobody wants to release the gruesome pictures/results or maybe no such obvious thing happens and death is more like asphyxiation, probably the latter. 

http://www.geoffreylandis.com/vacuum.html
says
you wouldn't explode

Re: My space shuttle sprung an air leak - What happens?

I would think the loss of pressure would similar to that of SCUBA divers who ascend too rapidly and get the bends due to Nitrogen "boiling" from the blood. In such a case, your early rescue could place the victims in a hyperbaric chamber to slowly equalize the pressure to normal status. You might wish to check out more details on the effect of bends in such a case. Take care. Vern

Re: My space shuttle sprung an air leak - What happens?

There's a similar event in Space Odyssey when HAL9000 opens a hatch. You may want to check it.

Kiss

Gacela

6 (edited by Tom Oldman 2016-07-06 14:29:48)

Re: My space shuttle sprung an air leak - What happens?

In the same movie (2001: A Space Odyssey), David Bowman blows the escape hatch of his shuttle and enters a vacuum for around 5 seconds until the ship's emergency hatch slams shut and the air rushes in. Very dramatic, but probably not relevant to what you are asking. I would imagine that a slow leak, plugged just in the nick of time, might cause "the bends" as Vern says. If the leak was small enough, and the air loss slow enough, the humans would eventually lose consciousness, pass out, and eventually disintegrate (ewww) like the scene in Sean Connery's movie "Outland".

~Tom

Re: My space shuttle sprung an air leak - What happens?

I have an interesting question, would a corpse actually disintegrate in outer space? On Earth, bacteria and stuff like that slowly eat a corpse. Any corpse, a human's, an animal's, and even a fallen tree in a forest. It would slowly decay until it turns into soil and eventually feeds the current living organisms. It's "the circle of life". But, in outer space? In absence of bacteria and air, wouldn't a corpse be preserved?

This image of a floating  space suit with a skeleton inside is common in space horror. But, would it really be a skeleton? Wouldn't the corpse be preserved intact inside the spacesuit?

BTW, I agree with Tom. A slow leak would most likely cause the humans to lost conscious because of lack of oxygen. Exactly what happens when you connect a car's muffler with the car's interior (the exhaust fumes invade the cabin, a suicidal technique in John Grisham's The Client) or when people use faulty heating sources in winter. The carbon monoxide would drive people into unconscious and afterwards into death.

I just recalled there's another novel you may want to check:   Michael Flynn's The Wreck of the River of Stars. There's a leak in a spaceship and the air is slowly leaving the ship (by the very end of the story). Interesting symptoms are explained there when oxygen levels are low, like short-memory loss. The characters even forget they are in danger because of the memory loss.

Kiss,

Gacela

Re: My space shuttle sprung an air leak - What happens?

would a corpse actually disintegrate in outer space? On Earth, bacteria and stuff like that slowly eat a corpse.

In 3001: A Space Odyssey , they bring back Frank who was drifting dead in deep space after HAL cut his lifeline. Aside from the poor execution of the story (read, flying dinos), it seems plausible

9 (edited by Tom Oldman 2016-07-06 19:39:22)

Re: My space shuttle sprung an air leak - What happens?

Mariana Reuter wrote:

... would a corpse actually disintegrate in outer space? ...

I would suspect that even though in deep vacuum of space, that certain bacteria and spores we have in our bodies would remain viable and eventually (years vs days) decompose a body. If nothing else, it would eventually dessicate to the point of extremely dry dust. Note Arthur C. Clarke wrote "A Fall of Moondust" that described this dry dust to a "T".

~Tom

10 (edited by Norm d'Plume 2016-07-06 19:41:01)

Re: My space shuttle sprung an air leak - What happens?

In my story, my characters are flying in a shuttle that's been hit by another ship, causing the leak. They're racing to reach a flagship before their air runs out. I want to knock them out with them realizing they may not be rescued in time and may never wake up. I can't have their blood/tissues boil/explode while they're unconscious.

Charles, thanks for the links. I read through it quickly and it looks useful. I'll read it in detail later today.

Re: My space shuttle sprung an air leak - What happens?

Norm d'Plume wrote:

In my story, my characters are flying in a shuttle that's been hit by another ship, causing the leak. They're racing to reach a flagship before their air runs out. I want to knock them out with them realizing they may not be rescued in time and may never wake up. I can't have their blood/tissues boil/explode while they're unconscious.

Charles, thanks for the links. I read through it quickly and it looks useful. I'll read it in detail later today.

It seems to me  you're over complicating the situation. They either pass out from lack of oxygen and/or decompression or they don't. You then save them or you don't. They will not know one way or the other unless you indeed do save them. Any added detail is not going to change anything or make it more dramatic unless you want to go into the theatrics of a Total Recall or such other unrealistic depiction. Good luck with whatever you decide. Take care. Vern

Re: My space shuttle sprung an air leak - What happens?

Thanks, Vern. I don't plan to add the extra detail in the story. I just want to be sure I'm portraying it accurately. From what I've read so far, they will pass out before decompression kills them. That's the correct order of events that I was looking for.