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Posted by RandomGirl on Jul-14-2009 05:53:

Plane Crash

Ok, this may seem like a stupid question... but with the recent plane crashes, I have pondered this and wonder if anyone knows.

In the event of a plane crash...
Why aren't there parachutes on board a plane?
Why can't they open the emergency exit doors and have people jump out?

I mean, if your plane is going down, chances are, you're going to die. So you may as well take the chance and jump out... you're likely to have more survivors. Right?

It just makes sense to me... if the plane is on its way down, have an emergency release where the exit doors come off and parachutes are available. Everyone jumps out as fast as they can and hopes for the best.


Posted by Yohan on Jul-14-2009 05:56:

good luck trying to push open the doors in mid flight, going really really fast

even if you do get out, the odds are you might get sucked into one of the jet engines. fun times.

plus unless you know when to deploy the parachute, the odds are, the parachute won't deploy properly depending on speed you're going.

and imagine landing in middle of ocean. your parachute pack don't carry much in terms of survival gear


Posted by DaRoZa on Jul-14-2009 06:02:

don't think it's possible, plane would have to be depressurized in order to not suck everyone out... and even then it would be going way too fast for people to properly exit in sequence. and i'm guessing under a lot of conditions you'd die a horrible death of becoming a human hailstone. the airlines would have to make sure the parachutes work for obese people and all kinds of other bullshit like explaining the procedure in detail before every flight.


Posted by RandomGirl on Jul-14-2009 06:03:

quote:
Originally posted by Yohan
good luck trying to push open the doors in mid flight, going really really fast

even if you do get out, the odds are you might get sucked into one of the jet engines. fun times.

plus unless you know when to deploy the parachute, the odds are, the parachute won't deploy properly depending on speed you're going.

and imagine landing in middle of ocean. your parachute pack don't carry much in terms of survival gear


I know that height, speed, and skill are all probably why it isn't used, but it seems to me that you're more likely to have at least a few survivors with this implemented, instead of none... right?

I understand that regular parachuting isn't done from the height/speed that a commercial aircraft maintains, but I would think that the odds would be more in favour of survival than just sitting in the plane to crash into the ground at 600mph.


Posted by infinity HiGH on Jul-14-2009 06:04:

physics ftw


Posted by pkcRAISTLIN on Jul-14-2009 06:05:

Lols.

How many people are capable of performing their first parachute jump by themselves and without adequate instruction?
Who is gonna strap granny in her jumping harness whilst a plane is upside down?
How are passengers going to access and use a safe jumping spot in a plane out of control? I mean, have you seen how long it takes people to exit a plane normally?


Posted by RandomGirl on Jul-14-2009 06:09:

quote:
Originally posted by pkcRAISTLIN
Lols.

How many people are capable of performing their first parachute jump by themselves and without adequate instruction?
Who is gonna strap granny in her jumping harness whilst a plane is upside down?
How are passengers going to access and use a safe jumping spot in a plane out of control? I mean, have you seen how long it takes people to exit a plane normally?


Obviously it would be chaotic... you will have people who will simply fall to their deaths or whatever.

With that being said, you might have the few who could make it... aren't odds more in your favour for survival with jumping out rather than crashing!?


Posted by boris_the_bear on Jul-14-2009 06:10:

quote:
Originally posted by pkcRAISTLIN
Lols.

How many people are capable of performing their first parachute jump by themselves and without adequate instruction?
Who is gonna strap granny in her jumping harness whilst a plane is upside down?
How are passengers going to access and use a safe jumping spot in a plane out of control? I mean, have you seen how long it takes people to exit a plane normally?


lol +1 solid metal logic


Posted by infinity HiGH on Jul-14-2009 06:15:

Please note that plane crashes usually end in 2 ways:

1) The plane explodes before anyone even realizes what the fuck is going on.
2) The plane tumbles from thousands of metres in the air to the ground at an accelerating speed.

In either of those 2 situations it would be impossible to announce to people to abandon plane. I mean I would understand if a plane crash were like an actual landing, at a controlled speed and descent, but that's the key difference between a crash and a landing.


Posted by pkcRAISTLIN on Jul-14-2009 06:15:

quote:
Originally posted by Theresa
With that being said, you might have the few who could make it... aren't odds more in your favour for survival with jumping out rather than crashing!?


i wouldn't have thought so. though i would be curious to see how many people jumping for their lives would get sucked into a turbine engine.


Posted by pkcRAISTLIN on Jul-14-2009 06:16:

quote:
Originally posted by infinity HiGH
but that's the key difference between a crash and a landing.



Posted by Krypton on Jul-14-2009 06:17:

It's impossible to open the doors in mid-flight. I'v got a better idea. A gigantic parachute for the plane itself! Kind of like the space shuttle but much bigger.


Posted by RandomGirl on Jul-14-2009 06:20:

quote:
Originally posted by pkcRAISTLIN
i wouldn't have thought so. though i would be curious to see how many people jumping for their lives would get sucked into a turbine engine.


Correct me if I am wrong, but aren't the emergency exit doors behind the engines? Therefore pushing you away and not sucking you in?

Infinity, there have been crashes where the pilot knew there was a problem before the plane lost control.

Yes, odds are very low that you would survive or that conditions would work for it... but it seems like you would have at least a teeny tiny percentage more of a chance of survival than just sitting there waiting to crash.

EDIT: The emergency exit doors in the middle of the plane is what I am referencing, not the ones in the front.


Posted by Sushipunk on Jul-14-2009 06:21:

quote:
Originally posted by Krypton
It's impossible to open the doors in mid-flight. I'v got a better idea. A gigantic parachute for the plane itself! Kind of like the space shuttle but much bigger.


Lol. And when the big parachute deploys...

I'm picturing that scene from Spaceballs, where Dark Helmet goes flying towards the front of the ship


Posted by Joss Weatherby on Jul-14-2009 06:23:

This thread is fucking funny.

First off, a lot of airline crashes involve catastrophic failure of any number of systems including the body of the aircraft.

At 35,000 feet traveling at over 500MPH you would more than likely lose consciousness very very quickly if there was rapid and massive de-pressurization.

Also Krypton, the Space Shuttle doesn't have a parachute...


Posted by Joss Weatherby on Jul-14-2009 06:24:

quote:
Originally posted by Theresa
Correct me if I am wrong, but aren't the emergency exit doors behind the engines? Therefore pushing you away and not sucking you in?

Infinity, there have been crashes where the pilot knew there was a problem before the plane lost control.

Yes, odds are very low that you would survive or that conditions would work for it... but it seems like you would have at least a teeny tiny percentage more of a chance of survival than just sitting there waiting to crash.

EDIT: The emergency exit doors in the middle of the plane is what I am referencing, not the ones in the front.


Yes, and hitting a vertical or horizontal stabilizer on the way back is perfectly harmless.


Posted by pkcRAISTLIN on Jul-14-2009 06:24:

quote:
Originally posted by Theresa
Correct me if I am wrong, but aren't the emergency exit doors behind the engines? Therefore pushing you away and not sucking you in?


many emergency exit doors are above the wings, and right near the engines. in a situation where a plane was unstable or flailing about, i reckon getting sucked into the engine would be a possibilitiy.

quote:
Originally posted by Theresa
Yes, odds are very low that you would survive or that conditions would work for it... but it seems like you would have at least a teeny tiny percentage more of a chance of survival than just sitting there waiting to crash.


but that "tiny" chance isn't big enough to justify all the modifications it would take to make planes jumpable, and even then its probably even smaller than "tiny".

for instance, where is my parachute located?

leg room > parachute.


Posted by Krypton on Jul-14-2009 06:25:

quote:
Originally posted by Joss Weatherby

Also Krypton, the Space Shuttle doesn't have a parachute...


Yea it does. It deploys when it lands back on earth.


Posted by Joss Weatherby on Jul-14-2009 06:26:

quote:
Originally posted by Krypton
Yea it does. It deploys when it lands back on earth.


Thats not a parachute.

That is a drag chute. It would not stop it from falling to a horrible demise.


Posted by RandomGirl on Jul-14-2009 06:27:

quote:
Originally posted by Joss Weatherby
This thread is fucking funny.

First off, a lot of airline crashes involve catastrophic failure of any number of systems including the body of the aircraft.

At 35,000 feet traveling at over 500MPH you would more than likely lose consciousness very very quickly if there was rapid and massive de-pressurization.

Also Krypton, the Space Shuttle doesn't have a parachute...


Again, no expert on plane crashes, but I was under the impression that they depressurized during a fall no matter what...?

Obviously people wouldn't be jumping out at max height. The plane is falling... therefore you're likely to be several thousand feet lower by the time you even know to get out.


Posted by Krypton on Jul-14-2009 06:27:

quote:
Originally posted by Sushipunk
Lol. And when the big parachute deploys...

I'm picturing that scene from Spaceballs, where Dark Helmet goes flying towards the front of the ship


It would be one hell of a ride!


Posted by Damerchi on Jul-14-2009 06:28:

If this were an accepted procedure(which would never happen), what do you think the ratio of false warnings/actual crashes would be?This would surely cause the death of many many more lives(through improper exit) than the process could potentially save. Not to mention bankrupting the already struggling industry.


Posted by Krypton on Jul-14-2009 06:28:

quote:
Originally posted by Joss Weatherby
Thats not a parachute.

That is a drag chute. It would not stop it from falling to a horrible demise.


Well, you know what I mean. A specially designed airplane parachute!


Posted by infinity HiGH on Jul-14-2009 06:30:

quote:
Originally posted by Theresa
Infinity, there have been crashes where the pilot knew there was a problem before the plane lost control.


Those are usually just warning signs and not a 100% confirmation that it's the end. It would be too late by the time the pilot decided to tell everyone to jump out the doors. This isn't like a boat sinking. Once you know you're fucked it's too late to do anything about it. Not to mention false warnings.

A better idea would be that the tail breaks off and everyone is sucked out in their seats. All the seats have parachutes that automatically deploy once a certain height is reached.


Posted by RandomGirl on Jul-14-2009 06:30:

quote:
Originally posted by pkcRAISTLIN
many emergency exit doors are above the wings, and right near the engines. in a situation where a plane was unstable or flailing about, i reckon getting sucked into the engine would be a possibilitiy.



but that "tiny" chance isn't big enough to justify all the modifications it would take to make planes jumpable, and even then its probably even smaller than "tiny".

for instance, where is my parachute located?

leg room > parachute.


I considered that. I have never gone parachuting before but I understand they are considerably large.

You make the best point though. The teeny tiny chance is not likely worth the billions of dollars and the possible carnage.


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