25 secret aviation has never been revealed

The source of water used on the aircraft is 10 times higher than the permissible level, or the flight attendant uses the phone while flying is the secret many people know.

Interesting facts about aviation don't surprise you

1. When landing at night, the cabin usually turns to dark light to familiarize passengers before stepping outside rather than letting them fall asleep easily.

The dim light is turned on every time the plane lands at night

2. The air maintained on the aircraft for passengers to breathe is essentially air from the engine compressor.

3. "Blankets and pillows served on very dirty flights, they are only washed once and reused on all day trips," revealed an unnamed Southwest Airlines flight attendant.

Pillow covers are reused for all the day's cruises

4. Once the aircraft door closes and takes off, the captain is the most powerful person. This person can arrest, impose punishment on any stubborn passenger.

5. Survey 43 - 54% of pilots in Norway, United Kingdom and Sweden show that they sleep while operating airplanes. The experienced flight attendant Tracy Christoph said: "The pilots are all set to take time to rest on long flights. However, in fact, even while performing their duties also accidentally . dozing off ".

6. Life vests equipped under each seat may be stolen, so passengers need to check before the aircraft takes off to ensure their own safety. Aviation expert George Hobica said: "This cowardice is practically less likely, but not without it. Most airlines pay little attention or not find out, and therefore some seats have may lack this safety device ".

7. The oxygen mask is only enough to breathe within 15 minutes. However, in emergencies, it takes 10 - 20 minutes for the pilot to lower the altitude to the level he can breathe, or to find and land at the nearest airport.

The oxygen mask is only enough to breathe within 15 minutes

8. During night flights, flight attendants often skip dinner if most passengers fall asleep.

9. The Wall Street Journal surveyed 14 flights in 2012 showed that the amount of bacteria in the water source used on these flights is dozens or even hundreds of times higher than the US permitted level.

10. The crew including pilots and flight attendants is only paid when the aircraft door closes. Each airline has different pay policies, however, most of them charge this rule to save labor costs. That means, if the plane is delayed or canceled, employees are not paid.

11. The vice and captain in each flight are served separate meals, of different origins, to avoid the same case of poisoning.

Export of the captain and vice-captain on flights of different origins

12. Prohibiting the use of mobile devices when airplanes take off for passengers only, flight attendants are an exception. An anonymous reader said: "My sister is a flight attendant, after reminding the flight safety rules for passengers, she enters the cabin room and starts texting."

14. The plane crash rate is extremely small. Many people are frightened while sitting on a flight. The average annual accident rate is 1 in 11 million. If you compare it to 1 out of 5,000 deaths from a car accident, you will definitely feel safe in the sky.

15. When a problem occurs, the position behind the aircraft is calculated to be safer. A study by Popular Mechanics concluded that passengers sitting near the tail of the plane had up to 40% chance of surviving an accident, higher than passengers in the area in front of the plane.

16. Worldwide, the aviation industry generates about $ 640 billion. That number is completely true. According to annual statistics, 600 US airline companies make up about 175 billion USD.

17. The white smoke line left by the plane in the sky can be used to forecast the weather . White smoke stains that aircraft normally produce are caused by steam. If the streak is thin, not prolonged in the tail, it is due to the air with low humidity and normal weather. If it is a thick streak, the longer part of the tail may be the initial manifestation of a storm.

18. Cut costs by eliminating olive ingredients in salads. In 1980, American Airlines leaders agreed with the food supply company to remove the olive ingredient in the salad on the flight. As a result, the company saved up to $ 40,000 per year.

19. Unusual disappearance of 2 Boeing aircraft.

On May 25, 2003, pilot Benjamin Padilla drove himself to buy a Boeing 727 and disappeared forever. Nobody knows where it is. Authorities said that Padilla was dropped in Africa or that he was illegally detained somewhere. But . a lost plane is not normal at all.

Recently, on 8.3.2014, Malaysia Airlines flight MH370 also entered the history of the mysterious disappearances of world aviation when the entire crew and passengers disappeared after an hour of take-off. So far, the world is still trying to find answers for MH370.

20. On the plane, food always tastes different. Before the aircraft takes off, the air inside the cabin will make your nose drier. As the aircraft raises the altitude, the change in air pressure will numb about one third of the taste. That's why many airlines often add a large amount of salt to the dish.

21. "Blunder Trophies " are used to be given to pilots with silly mistakes. The National Air Force Museum exhibited "Blunder Trophies" in early 1930. It included honors that were given to "silly" pilots, who had made "confusing" mistakes, such as responding. The plane went towards a parked aircraft, taking off without enough fuel . Surely at that time, these "medals" were really serious and deterrent.

22. The mercury dump on the plane can cause the aircraft to be seriously damaged. The aircraft is primarily constructed of aluminum so mercury will break down the chemical structure of aluminum. Therefore, you will have to pay attention to the items you bring on future flights. This is also a satisfactory explanation of the rumors of many governments in the World War when trying to destroy each other's aircraft by applying mercury to enemy aircraft. Chemistry can become very cruel!

23. Cannot open the door when the plane is flying. At least you don't have to worry about any "madman" planning to open the door while flying. Once the aircraft takes off, inside the cabin there will be greater pressure than the outside. Besides, the aircraft door is designed to ensure absolute safety, it takes many steps to open the door. So, no one is strong enough to open a locked door under pressure conditions. so.

24. A commercial jet has an average flying speed of 885-930 km / h. During take-off, aircraft can reach speeds of 280 to 290 km / h and when landing, the speed can be 240 to 260 km / h.

25. The busiest airport in the world is Hartsfield-Jackson Atlanta International Airport . Welcoming 95.5 million passengers and 930,000 flight flights each year makes Hartsfield-Jackson International Airport Atlanta the busiest airport in the world. However, Dubai's new airport, Dubai World Central, was built to "usurp" the airport's title. Dubai World Central invests up to $ 32 billion, promising to deliver 160 million passengers a year.