Ridiculous falling out of an airplane scenario

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    Airplane Falling
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Discussion Overview

The discussion revolves around a hypothetical scenario where a person falls from an airplane at 30,000 feet and attempts to create makeshift parachutes using clothing and blankets to survive the fall. Participants explore the feasibility of generating enough drag to reduce terminal velocity and the factors influencing survival in such extreme conditions.

Discussion Character

  • Exploratory
  • Debate/contested
  • Technical explanation
  • Conceptual clarification

Main Points Raised

  • Some participants argue that it is not possible to create sufficient drag with clothing and blankets to survive a fall from 30,000 feet.
  • Others question the survivability of falls from various heights, suggesting that a fall from 2 or 3 stories might be survivable, but much higher falls would require significantly more drag than proposed.
  • A participant highlights the importance of what one lands on, suggesting that landing on something soft could improve survival chances.
  • There are discussions about the physiological effects of high-altitude falls, including the potential for unconsciousness due to lack of oxygen and the impact of cold temperatures.
  • Some participants mention the necessity of holding the makeshift parachute fabric in specific ways to create a canopy shape, raising practical concerns about how to manage this in free fall.
  • A former paratrooper shares personal experience, noting that terminal velocity is around 120 mph and discusses the potential for survival if drag is increased sufficiently.

Areas of Agreement / Disagreement

Participants generally disagree on the feasibility of surviving a fall from 30,000 feet using makeshift parachutes. While some acknowledge the possibility of survival under certain conditions, others maintain that it is unlikely to be effective.

Contextual Notes

Participants express uncertainty regarding the exact drag needed for survival and the various factors that could influence the outcome, such as landing surface and altitude effects on terminal velocity.

Who May Find This Useful

This discussion may interest those curious about extreme survival scenarios, parachuting, and the physics of free fall, as well as individuals exploring the limits of human endurance in high-risk situations.

FallingMan
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Hi guys,

In light of my upcoming flight to a tropical island, I would like to ask about a scenario that I've wondered about for ages.

>>>NOTE: It's really ridiculous<<<<

Okay, let's say the plane falls apart at an altitude of 30,000 feet and you are in free fall...

Let's say that you were clutching a few cheap airplane blankets and decided to fold over the ends (corners) to make a mini-parachute like structure. Then you take you pants off (bear with me) and you open the waist side downward to form another parachute like structure and did the same with your shirt.

Assuming you manage to accomplish this feat in free fall, would you be able to generate enough drag to prevent a gruesome death when you finally hit the ground? How much drag would be necessary to save you?

-Cheers,
Fallingman
 
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By a process of deductive elimination it is not possible to do this. If it were, it would presently be a thrillseeking sport.
 
The first question to ask is what speed can a human survive from? What is the highest you could fall and probably survive? 2 or 3 stories? I have no idea. Find out what speed that would be, and I think you would see you need a lot more drag than a pair of pants and blanket. (but you would really need to know the drag of the pants to be sure - sounds like a myth-busters episode, pants in a wind tunnel. You should write them.)
 
How do you take your pants off while you are clutching the blankets?
 
Vanadium 50 said:
How do you take your pants off while you are clutching the blankets?

The trick is to take the pants off first with one hand, and clutch the blankets with the other :cool:!
 
The most crucial factor is what you land on. even without the makeshift parachute, it would be possible to fall as slowly as 100mph. I would imagine that your macgayver style parachute could at least cut that in half. at only 50mph your chances look a lot better, however it's still about how you land, and what you land on. i would not recommend trying this. people have been known to survive freefall from obscene heights, however it's a pretty safe bet that you wouldn't be able to get up and walk away.
 
Nope from 30000 feet you'd be dead from sheer terror, that's how people apparently go. It post mortems it seems they tend to suffer from a huge heart attack. NOTE: A fall from 30,000 feet would likely render you unconscious anyway, the cold and lack of oxygen will knock you out pretty quickly.

Assuming however you were some kind of steel hearted man who doesn't require oxygen to respire, who kept his wits about him long enough to remove his trousers whilst plummeting to the ground I doubt it'd be enough to save you.

What matters most in this is 1: being relaxed (a floppy body will tend to prevent internal injury) 2: landing on something soft (this is highly important, try to aim for a pillow factory with no roof)
 
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And landing on a slope can have a huge impact on your chances of survival.
 
Lsos said:
And landing on a slope can have a huge impact on your chances of survival.

definitely. In "assault on the control tower" the Master Chief can only survive jumping off the long bridge by hitting the sloping canyon walls just right on the way down.
 
  • #10
Vanadium 50 said:
How do you take your pants off while you are clutching the blankets?

Hold the blankets under one arm, unfasten your pants with the other, turn upside down and let the wind to the work. Just don't let go of your pants!
 
  • #11
Also at 30,000 feet in the thin air your terminal fall velocity is substantially higher than at low altitudes, which would give unexpected side effects, when wrestling with garments. Main parachute deployment from jet ejection seat gear for instance is normally delayed until reaching 15,000 feet for that reason.

Also, you'd have to hold the fabric at at least three points to form some sort of canopy shape. A third hand?
 
  • #12
Andre said:
Also, you'd have to hold the fabric at at least three points to form some sort of canopy shape. A third hand?

Tie it to your whatsit, although that could be difficult considering the size effects of -50C.
 
  • #13
as a former paratrooper I can tell you that you will reach terminal velocity of 120 mph and that is the speed you will impact the earth...my company commander has a partial malfunction on a jump one day...he managed to shake out the parachute to deploy 20 percent open..it had enough air drag to slow him up..he hit the drop zone..sand..and was in hospital for 6 months..if you are not unconscious due to oxygen depravation ( our HALO teams need oxygen at 25000 feet jumps) and don't freeze, you may survive by deploying something to increase air drag and reduce your impact speed...one sky diver had a total malfunction and lived after impact but totally busted up...
 

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