If the movie "Captain" happens, how long can the oxygen supply system on the plane provide oxygen for passengers?

Usually, the oxygen supply system of a passenger plane can provide oxygen for passengers for about 30 minutes.

Personal protective equipment, to ensure that the aircraft crew can inhale enough oxygen when flying at high altitude or taking off in an emergency to prevent hypoxia. Aircraft oxygen supply system has many forms according to the passenger capacity, voyage, ceiling and mission nature of the aircraft, but it is basically composed of oxygen source, control valve, pressure reducing valve, regulator, various indicating instruments, parachute oxygen supply device, isolating switch and oxygen mask.

Miracles come from majors.

The whole process of the accident lasted for 34 minutes, which was a thrilling 34 minutes and was called the "miracle of forced landing" in the history of world civil aviation. But it is no accident that miracles happen.

Captain Liu Chuanjian is a pilot with 25 years of flying experience and a senior simulator teacher. He never relaxes in flying and teaching. Zhang Hanyu, who plays the captain, revealed that there is a detail in the movie that he bathes in cold water:

He can hold his breath for four minutes, so it takes very professional driving skills and strong psychological quality to let the plane descend in four precious minutes under the condition of hypoxia at high altitude.

Extended data:

Prototype story:

On May 4th, flight 2013U8633 flew from Chongqing to Lhasa as usual. For Captain Liu Chuanjian, this route has flown back and forth for more than a hundred times, so many things are familiar and don't need special attention.

However, even so, the accident happened. After 40 minutes of flight, the front windshield of the right seat of the cockpit suddenly burst at high altitude in Chengdu, and the whole cab equipment was out of control under the high-pressure airflow. Seeing that the plane was about to have an accident, with the cooperation of the crew member Qi Li, the plane finally turned the corner.

At the critical moment, captain Liu Chuanjian held his breath, steadied his mind in the state of resisting airflow and a large number of equipment damage, and relied on his own experience of flying back and forth for hundreds of times and his own judgment to maintain the flight state. At the same time, organize several crew members in the rear to appease the passengers' emotions and keep calm, so as to prevent the passengers' emotional imbalance and affect the work of the crew members in front.

Steady and orderly, seeking gradual progress. Liu Chuanjian's active cooperation with the crew finally pulled the 3U8633 flight back from the brink of death. At 07:46 that day, Shuangliu Airport was forced to land safely, and the crew and passengers were safe and sound.

Baidu Encyclopedia-Aircraft Oxygen Supply System

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