China News Service, Beijing, September 17th, title: Why was the first person seen by the astronauts of "God 12" after returning to Earth?

  Author Ma Shuaisha Zhang Meng Feng Qingling

  With a loud "bang", a group of yellow flames sprayed from the bottom of the return cabin of the Shenzhou 12 manned spacecraft, the buffer engine was successfully ignited, and the return cabin landed on the Dongfeng landing site steadily on the 17th.

  Before the search and rescue helicopter stopped, a search and rescue team wearing an orange search and rescue suit headed straight for the return cabin. He was the new cabin operator Feng Yi.

  Observe the cabin door, press down the flat pressure valve, and secure the cabin door with a seat belt. After the preparations are completed, Feng Yi holds the cabin opening handle and opens the cabin 140 degrees counterclockwise.

As the hatch slowly opened, the three astronauts finally breathed the fresh air of the earth, and at first glance they saw Feng Yi waiting at the hatch.

  This is the first time Feng Yi has opened the cabin. He waited for four years for this day.

Half a month ago, Feng Yi learned that he would be the spacecraft opener for the Shenzhou 12 return mission.

  "Li Tao was the first man I knew after joining the space search and rescue team. He was the opener of the manned space missions from Shenzhou 1 to Shenzhou 11, and was the first person the astronauts saw after returning to Earth. He is in a position that I have always envied but dare not think about. I did not expect that I would really stand in this position today." Feng Yi said.

  What is an opener?

As the name suggests, it is the first person to open the door of the spacecraft after landing.

In the field of aerospace search and rescue, opening a cabin is definitely a technical task. It not only requires a comprehensive grasp of the opening technique, but also a strong psychological quality.

  In the process of returning to the earth, the return cabin will rub against the atmosphere, and the outer shell will generate high temperature, causing the pressure in the cabin and the pressure outside the cabin to be unbalanced.

When opening the cabin, use a special tool to accurately insert the lock hole, and balance the air pressure inside and outside the cabin through the pressure reducing valve.

If the pressure is relieved too quickly, the astronauts body cannot adapt to it all at once, and the pressure is too slow to relieve the pressure, which will delay the time for the astronauts to exit the cabin.

For the opener, both technical ability and psychological quality are indispensable, not only mastering the opening technology, but also having the comprehensive handling ability to deal with the landing of the return capsule in different areas.

  In order to meet the needs of his position, Feng Yi experienced cruel search and rescue training on land, water and air.

Whether it is hot summer or heavy snow, whether it is day or night, Feng Yi can always be seen on the training ground.

  In addition to basic training such as physical fitness and theory, he also carried out targeted training in more than 30 courses such as drone operation, helicopter landing and anti-vertigo training, and comprehensively tempered various excellent search and rescue skills.

In order to deal with the special situation of the return cabin falling into the lake, "land duck" Feng Yi took the initiative to ask Ying to participate in diving training.

After more than a month of diving training, Feng Yi didn't miss a single shot.

  Because of the epidemic, the swimming pool was unavailable, so he went to the artificial lake on the Gobi to train.

The temperature of the lake in September can be as low as ten degrees Celsius. If you want to train in the warm lake water, you must accept the noon sun.

In each training, he came the earliest and walked the latest.

One month later, he became the person with the worst sunburn in the entire team.

The team doctor jokingly told him, "You are already a big boss, and you are still fighting with a group of young people. Are you full of water?"

  "Efforts may not have results. If you don't work hard, there will be no results." "If you don't have diamonds, don't engage in porcelain work." These are Feng Yi's words.

It is precisely with this hard work and enthusiasm that Feng Yi successfully completed the training and assessment of a series of projects for the opener position and became one of the few people who obtained the diving certificate. He also obtained the drone operation certificate and crane. Driver's license, loader flat towing license, etc.

  This search and rescue mission is the first time to perform an astronaut return search and rescue mission in the Gobi Desert.

To this end, Feng Yi made sufficient preparations.

In order to explore the skills of opening the cabin door, he started from the aspects of cabin door structure and balancing cabin pressure. He repeated his practice for different environments such as high temperature, low temperature, sunny day, rainy day, water, land and so on. He often practiced thousands of times a day for one action. Four or five of the handles for opening the cabin are broken.

  After opening the door of the Shenzhou 12 return module and successfully picking up the astronauts, Feng Yi immediately reported to the dispatch commander Li Xin the exact location of the return module.

After cooperating with the ground team to complete a series of disposal work, Feng Yi's work is not over yet, and he embarked on a new journey to escort the astronauts home.

(over)