Safety Of Air Travel

Air travel is convenient, fast and comfortable, so it is very popular.

But with the popularity of air pportation, air accidents also happen frequently.

Especially due to the characteristics of air pportation, air accidents often cause huge losses.

Therefore, for those who travel by air, they must have some knowledge of safety.

First of all, we should understand that some people are not suitable to travel by air.

The environment of air flight is very different from that of the ground, such as narrow space, irregular meals, low altitude air pressure and reduced oxygen content in the cabin.

It may affect some people whose blood oxygen depth is at a critical value.

Therefore, sick people have to judge for themselves whether they have been able to travel long distances.

People with a history of cardiovascular disease, such as myocardial infarction in the acute two to eight weeks, heart failure, severe valvular heart disease, arrhythmia, and hypertension control, are not suitable for long distance travel by air.

According to statistics, around 1900 flights take off and take off from around the world, and there are times when passengers need medical services, and 50% of them are patients with coronary heart disease.

This is because when a plane takes off, rises, falls or meets a turbulent flow, it tends to make people feel nervous and cause heart disease.

When the aircraft is lifted, the air pressure in the cabin decreases, the oxygen content is low, the lung function is bad, such as severe asthma patients, emphysema and chronic bronchitis patients will feel quite uncomfortable, and the situation of hypoxia will be more serious than usual.

Similarly, sinusitis or otitis media.

In patients with inflammation of the inner ear, the bubbles in the nose and ears will expand and be unable to shrink after lifting the air, causing distending pain in the affected part.

People who have had eye surgery or head and face surgery are also advised to avoid flying.

In addition, the first three pregnancies were caused by unstability of the fetus, and some physical uncomfortableness.

It is also not suitable for flying; the last month of pregnancy, it is better not to take an airplane to avoid premature birth due to hypoxia.

If the aforementioned person must take a plane, ask the doctor to advise him before the trip and prepare the medicine.

Heart disease patients should take their own electrocardiogram examination report. When necessary, the airline can prepare the oxygen in advance, just in case.

Learn to use oxygen equipment on board.

Modern large airliners usually fly at a height of more than ten thousand meters.

In order to ensure the normal life of the aircrew and passengers, the cockpit is sealed off from the outside world and equipped with G special equipment to regulate and pressurize the cockpit.

In addition, there is no definite formula and portable oxygen equipment.

Passengers do not have to use oxygen during normal flight.

If any passenger is physically weak or sick, he may ask the waiter to bring portable oxygen equipment for individual use.

Once the aircraft fails, the cockpit is lost, and the alarm system will issue an alarm.

When the cabin pressure drops to a certain level, the oxygen mask in the fixed oxygen equipment will fall from the top of each passenger, and passengers will be able to suck oxygen if they wear a mask.

At this point, the pilot can quickly drop the plane to a safe altitude of two or three kilometers.

Points for attention after boarding.

After boarding the plane, you should carefully read the safety handbook in front of the bag.

Listen carefully to the crew's introduction of emergency measures.

This is especially important for people who are flying less or less.

Familiarize yourself with your surroundings, especially the location of the emergency exit nearest your seat.

It is important to fasten seat belts according to the requirements of aircraft.

In April 6, 1993, a domestic passenger aircraft encountered strong vertical airflow during the voyage. The aircraft briefly lost control at high altitude, causing severe turbulence. Passengers who did not buckle the seat belt were thrown to the top of the cabin, killing 2 people and injuring dozens of people.

Emergency measures for aircraft landing.

The aircraft will be forced to make an emergency landing if the aircraft is pressurized.

Emergency landing occurred at sea.

But if it is too far away from the coast, it sometimes has to force a forced landing in the wilderness or on fire runway runway.

When landing, passengers should do the following:

1, keep calm and keep a clear head; listen to your command, and not be frightened or lose your temper.

At the same time, pay attention to the location of the aircraft simulating the emergency exit.

2. if the altitude is above 3660 meters.

The pressurized pressurized valve suddenly loses its release pressure, and the oxygen mask on the passenger's head will fall down automatically, and oxygen should be immediately inhaled.

Until the pilot lowered the height of the plane.

3., under the unified command of the crew, move to the front cabin as far as possible.

Because the chance of throwing the tail is more than 10 times that of the nose.

4. adjust the seat back to normal condition according to the requirements, put up the small table board and fasten the seat belt.

Bend forward and put your face on the knees with soft pillows, such as pillows, two

The arms hold the thigh, so that the whole body is at the "lowest level" to reduce the damage caused by inertia.

5 quickly remove the high heels, glasses and dentures and remove the hard objects around the body or around the body so as to avoid unnecessary injuries.

Seat belts should still be fastened before an emergency is separated.

6 if the aircraft is forced to make a landing on the water, the lifejacket should be worn according to the method explained by the crew.

Save your life and help others, especially children.

Do not inflate the life vest before going out of the engine room, otherwise it will cause difficulties in the door.

7 before opening the emergency exit, you should quickly check out the outside through the glass of the door. If you find smoke, flames or sharp fragments outside the exit, and other obstacles, do not open the hatch door and leave immediately from the other exit.

8. after the emergency exit is opened, the inflatable ladder will expand automatically, and skip to the ladder in the sitting posture.

9. after leaving the plane, we must obey the command of the commanding officers so as to act together and get out of danger.