The whereabouts of 132 people in the Eastern Airlines crash are still unknown

The crash of the Eastern Airlines flight is very regrettable, so why do not passengers go to self-help?

In American movies, there is always this plot, the flight attendants for passengers to take a good parachute, parachute escape, why do they do not do it?

Civil aviation is not equipped with parachutes

Not the crew did not arrange a parachute for them, because civilian flights simply will not be equipped with a parachute, and even if there is a parachute, you will not operate.

After all, parachuting this discipline is not for everyone, if you want to parachute, you also need to parachute training for people, the delay will not only increase the cost, and besides, the plane crash is very low.

Air pressure so you can not open the hatch

Aircraft is not like we take a bus or a private car, you just open a door or smash the window and can jump out of the car to escape, if it is so simple to open the aircraft, I believe that many people are probably afraid to take the plane.

First of all, the aircraft cabin door uses the airtight pressure of the machine structure, the aircraft after flying up to high altitude, high air pressure, and ground pressure is a world of difference. At this time, to protect passengers can breathe normally in the cabin and have a pleasant journey, the cabin air pressure will be adjusted to the air pressure index suitable for human survival, but this will lead to different air pressure inside and outside the cabin, even Hercules in the flight state is difficult to pull open the cabin door. At the same time, to prevent accidental touch, most of the aircraft cabin doors are equipped with air-locking structures, the door is locked in flight, and you need to open a specific switch to release the door.

Window escape

If you take the parachute, and see the hatch can not open, you want to smash the window to escape, it is more delusional, let us not say that the aircraft windows in the end how small, even if you succeed in breaking the glass, the huge pressure difference between inside and outside will instantly suck you out of the window, you may not react, it has been thrown out of the aircraft, do not know where to go. Think about how much your survival probability can be in this situation, you were sucked out by the air pressure probability of survival is probably equal to the probability of the plane disintegrating in the air.

And if the aircraft hatch or window is opened, then the oxygen in the aircraft will be rapidly depleted, placed on the top of each person's head oxygen mask can only last a short time, there is no way to maintain the entire aircraft on people breathing oxygen for a long time.

Parachute jump operation is too dangerous

The reason why civil flights are not equipped with parachutes, there is another reason why parachute jumping technology is too difficult, even if it is a professional parachute jump instructor or military airborne soldiers, but also need a lot of practical training to be able to master parachute jumping technology. We ordinary people the experience of flight attendants in the aircraft before takeoff 3 to 5 minutes to explain the study, you may not even listen, suddenly let your parachute jump, you think you may learn? May carry a parachute bag down, even how to open the umbrella do not know.

And even if you jump, only physically strong adult males are likely to successfully open the umbrella, the strong atmospheric pressure generated by the fall and the huge pressure on the human psyche, it is difficult not to let people fumble, if you do not open the parachute, your descent is extremely fast, likely, you have not reacted, you have fallen to your death.

You have to say you do not believe in evil, then I will give you a good stroke, whether you jump from the window or jump from the hatch, if you do not have a way to maintain stability, you will be in a state of rotation or tumbling, during this period you need to master a good sense of direction, but also to overcome the dizziness brought about by high-speed rotation.

And if you are at this time with your excellent balance and physical fitness, and successfully found the right direction, then the next step you have to prepare to open the umbrella. But after you are ready to open the umbrella, if your stance is not set up properly, or if you get tangled in your device by the umbrella rope hook, this will cause you to be unable to open the umbrella properly. You are a novice, you can not have the ability to deal with this crisis, you have no way to open the umbrella, you can only haphazardly call for help or the tangled rope cut a pass, then you are not far from death.

Then well, if you are particularly lucky to meet no winding, the parachute bag did not have any problems, you successfully open the umbrella, then you have to face a more important problem, which is how to live. After you get out of the warehouse, free fall has a specific posture, opening the parachute also has a specific posture, and landing is no exception, you need to follow the normal operating procedures for braking, and in the descent try to protect your heads and torsos, these vulnerable to fatal areas.

If you are not trained, the best result is to cause some bruises and fractures, but are not fatal. And you have to consider your fall surface, you are falling on top of the rocks or falling into the forest canopy, or falling into the water. Falling into the water, you also have to consider whether you can swim and whether you can cut the parachute cord in the water in a short time, in case the parachute cord to your legs entangled, do not fall to death in the air but drowned in the water.

See so complicated steps you will know, in the end why civil aviation will not be equipped with a parachute, because it is too difficult, if you do not go through professional training blindly challenge, it is the same as sending death.

Parachute is not just jumping

Even if your physical fitness, parachute jumping technology first-class, is an airborne veteran, there is a very important issue in front of you, which is the flight height.

When you take civil aviation, the aircraft's flight height is much higher than the height of the parachute jump, generally speaking, the height of the parachute jump is about 3 km to 4 km between the aircraft's cruising altitude can reach 7,000 ~ and 12,000 meters, if you jump at this height, then you have to face not only the wind, equipment, falling surface these problems, you also have to face the impact of low temperature and lack of oxygen to you, before a Guinness World Record challenger has skydived above 40,000 meters, it all need to wear a spacesuit and then skydive.

And wait until the aircraft from the normal cruising altitude down to the height of the parachute can be jumped, it may take half an hour to complete. There is this half an hour that should have happened long ago, should not happen, and does not need you to parachute. If it is in the case of a rapid aircraft landing, you have to parachute, which is also very unrealistic.

Because parachute jumping requires the cabin to belong to a stable state, an extremely fast landing is bound to bring high-speed bumps, you have no way in just 10 minutes 15 minutes for all passengers to carry parachutes, jumping one by one, so if you encounter difficulties in civil aviation, you want to parachute escape is a pipe dream.

The above is why when an air accident occurs, do not have to parachute escape, it is likely that in a small air accident, you have the opportunity to survive, but died on the parachute.