What is the secret that passengers do not know when they are flying?

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The question was asked on the Reddit: flight attendants, pilots, engineers, what are the secrets that passengers do not know when they fly? There are many answers to be submitted, and here are 30 of the most interesting ...

Note: Reading these answers may give you a good thought before the next flight because you have already received a warning.

1. The true story behind the oxygen mask

If the oxygen masks fall off, you will have a 15-minute supply of oxygen (calculated from the time of the drop), but still, the pilot has enough time to take us to the normal level of breathing.

More importantly, you have 15-20 seconds to wear an oxygen mask before you faint at a certain altitude. First put on your own, and then help around the children to wear. Just a few seconds of fainting won't do any harm to a child.

2. The water in the toilet is super dirty

Whatever you do, don't drink the water in the toilet. It's bad enough to wash your hands with those water. We regularly disinfect the tanks, but the parasite has already produced resistance to those disinfectant fluids.

Check the outside of the plane before boarding, and if the plane's painting looks awkward, the plane will be awkward. Skydrol (hydraulic oil) is a dirty liquid that corrodes everything. So if the painting is a mess, it's probably skydrol leaked. No one wants to bump into the oil spill at 35000 miles, especially if you can't park on the shoulder and fill up the tank.

3. The real reason for the plane to dim the cabin light before landing

When an airplane prepares to land at night, the flight attendant dims the interior light because you may need to evacuate after landing. Your eyes have adapted to the dark so you can get out of the cabin better to see the outside environment.

4. Lightning and pilot Power

My dad used to be a pilot with nearly 20 years of experience, usually on a plane that was always plagued by lightning. And if a passenger is in trouble on the plane, the captain has the right to refuse them to board the plane and drive them off before takeoff.

The captain had almost unlimited power when the plane door closed. He was able to arrest passengers, pay fines to passengers, and even record a will for a dead passenger.

5. Toilets that can be locked from the outside

You can lock the toilet from outside the bathroom door, no smoking signs usually have a hidden lock behind it. Just flip the sign and slide the bolt to lock it.

6. Real bomb threat Story

I have a friend who is a pilot on a business flight. About five years ago he was driving a flight from Los Angeles to Tokyo. They received an anonymous bomb threat call while they were in the middle of the Pacific. They have long been trained to deal with the situation, but it is clear that in this situation no one can do anything to improve the situation except to stay calm and not let the passengers know about it. He said that all the turbulence that followed in the flight had put them under great pressure because the first class was sitting in a group of foreign dignitaries.

7. View food on airplanes

My dad worked for a big airline, and he told me a few things, one of which was two pilots eating different meals and not sharing them to prevent food poisoning. If you steal food, even if they are thrown away immediately, they can get you fired. You can ask your boss for help, but you can't just take them away. They don't want people to think about the food.

8. The truth about flying with pets

I'm an airplane oiler, and one thing I can't emphasize enough is how your pet is treated. Some things are unavoidable, such as the noise of the airport. I can't stand there without my ear hood. Imagine your pet sitting there waiting for the plane to be exposed to the same noise.

Please, think twice before you check in your pet.

9. The things you do when you turn off the electronics

My sister was a flight attendant, and he said that when she told everyone to turn off the electronics she would go back to the back of the plane and turn on her cell and start texting.

10. A little trick to create more space for yourself

Armrest on aisle and window seat: Touch the bottom of the armrest and you will feel a button. Press it down, then you can lift the armrest. Add a little space to the window seat and make it easier for you to walk to the aisle.

11. Do not drink non-bottled water on the plane

I am a former Lufthansa freight employee. Never drink water from a plastic bottle on an airplane. Don't even touch it. The reason is that it is less than a few feet away from the toilet and the port where the water is added to the plane, and is usually done by the same person. Not always, but if you're not there, you'll never know.

12. The importance of locking your own baggage

Lock your own baggage, including hand baggage. Buy TSA-certified locks online or at a tourist store. The TSA has keys for unlocking these locks in case they need to be examined further (hopefully they don't steal anything). Most people do not want to lock their hand baggage, but now, with the increase in passenger capacity, more and more passengers need to check in with their baggage. Once you have your bag ready for consignment at the end of Check-in, you will be able to access your bag, whether it is a fellow passenger, a boarding gate staff, or an airport worker.

13. How the pilot handles the landing

When you feel a hard landing in a bad weather, it's not because pilots lack experience, but instead they do it on purpose. If there is water on the runway, the plane has to land again to prevent slippage in order to penetrate the layer.

The landing was just a controlled fall, said a pilot friend.

14. Tipping is a very effective thing.

My girlfriend is a flight attendant. No one will give an empty tip. If you were to serve your first glass of wine by five dollars, you would be free to drink on the next voyage.

15. Pilots sleep most of the time

Half the pilots slept in the flight, only one-third of the time they were awake, but their partner was asleep.

16. A flight by a major airline does not represent an experienced pilot.

Pilots of regional routes. You may be buying a plane ticket to the United States or U.S. airlines, but you may be sitting on a contractor's plane. This means that only a small fraction of pilots come from the experience of large companies, training and salaries. Again, I don't care if you catch your next flight. Most of the time we fly slower than normal, because we can get more money. Only ATC (air traffic control) makes us fast or when we're rushing home.

17. Closing the truth behind electronic supplies

The pilot is here. It is useless to turn off electronic items on an airplane. Mobile electronics don't really make a plane crash, but they annoy pilots. Imagine you're sitting in the cockpit ready to land but you hear the noise from more than 100 phones. I've missed one or two landing clearances because of this.

18. Shopping on the machine is just a pit of money

Everything that can be bought on the machine can be bought online with much less money.

19. How are your checked baggage treated?

If labeled "fragile", then it will fall more ruthless. If you put a "This face up" sign, it will be reversed. We have to load more than 100 pieces of baggage on one flight and they will be treated as they should be. But I'm not going to tell you. When we see the label "I am thankful for the baggage carrier", we will take special care of the litter.

20. A flight attendant reveals how dirty everything actually is.

I'm flying in southwest. About the blankets and pillows? Yes, they were folded over the flight clearance and stuffed into the box. I only saw clean blankets and pillows on an originating flight in the morning of a recharge city. Also, if you ever put peanuts on a tray and then eat them, or just touch a few trays, you may have swallowed baby poop. I've seen more dirty diapers on the pallet than I've ever seen. Yes, I've never seen a tray cleaned or disinfected.

21. A loophole that allows you to pay no baggage charges

You can check your baggage at the boarding gate almost every time (unless they are really super big). Take two hand baggage and ask them to check in at the gate. It's free, I've never paid for it.

22. Most flights also transport human organs

Most domestic flights contain human remains or organs. I'm a baggage porter under the wing. Look out the window at the long box that says "head" on one side. Oh, I can load 150 pieces of luggage in a Boeing 737-300 warehouse.

23. The airport does not involve all security monitoring

There are always legitimate security vulnerabilities. If widely known, most people can go to airplanes, runways or lanes. As with all other systems, as long as you know how it works, you know where the leak is.

24. Even if the engine dies, the plane can glide for a long time.

A pilot told me that if two engines were stalled, the plane could still glide 6 nautical miles at a cost of 5000 feet. So if at 35000 feet, a plane can still glide about 42 miles and not need energy. This is why most accidents occur during take-off and landing.

25. The water used to brew coffee or tea is dirty.

Drinking water used to make tea or coffee drinks should never be drunk. The tanks on airplanes that were 60 years old were never cleaned. They gather so much green dirt on the inner wall that some places have a few inches of dirt.

All airline employees know this.

26. Why take out the battery is more convenient

If you have a toy in the box, please take out its battery. Because when I'm loading your baggage, I have to tell my boss if I find any vibrations. And then my boss will have to get you out of the plane and you'll have to turn off your toys in front of a group of squeaky-grinning adults.

27. In hot weather the plane encountered more difficulties

I work at the airport in Phoenix. On a hot day, we have to unload the cargo because the plane takes off in the thin air.

28. Packaged headphones are not new

I work for a company that supplies airlines. The headphones that are distributed to you are not new, even if they are packaged. They were taken off the plane, "cleaned up" and repackaged.

29. How to tell the ground plane was hijacked

If the plane is hijacked, the pilot will be able to keep the aircraft flaps open to slow the plane down after landing. This is to inform the airport that a little trouble has taken place on the plane.

30. The real reason for the ashtray in the toilet

Here's one: The toilet is forced to install ashtrays even though the FAA had banned smoking on airplanes a few years earlier. The reason is that if people really decide to smoke, they (the FAA) want the people to have a place to put soot instead of bouncing into the trash.

Now that you've learned some secrets about flying, don't forget to share them with your friends.