[Editor's note] 20:45 Beijing Time on December 27, 2019，A Long March 5 carrier rocket has been successfully launched from China's Wenchang Spaceport，Successfully put Shijian-20 into orbit!Wang Guangyi, commander of 01, who shouted the countdown to the launch mission，In July 1999, he graduated from the Department of Automatic Control, School of Automation, Beijing Institute of Technology。Under the background of in-depth education on the theme of "Never forget the original intention and keep the mission in mind"，To further "set an example and set a benchmark"，The Propaganda Department of the Party Committee introduced the struggle story of Wang Guangyi alumni，Continue to encourage the majority of teachers, students and alumni to inherit the red gene and take root in the motherland，Step on the stone to leave a mark on the road to great power，Write a wonderful "Beijing Polytechnic Story"!

Wang Guangyi works at the launch post

　　"01" commander, is we usually say that the space launch mission "big steward", this position is not ordinary, not only have a wealth of mission experience, but also have a solid technical foundation, heavy responsibility, glorious mission。At the last moment everyone heard "5, 4, 3, 2, 1, fire!"He's the one who gave the orders。

Double "01" commander

　　The "01" commander of the Long March 5 remote rocket launch mission is named Wang Guangyi, who was also the "01" commander of the Long March 7 rocket's first flight mission and the Tianzhou 1 mission, and sent the Tianzhou cargo spacecraft into space with the perfect "zero window"。It can be said that Wang Guangyi is the first and only "01" commander of the long five and long seven rockets in China。

　　More than two years ago, the launch of the Chang Wuyao II rocket failed due to the failure of the core stage engine。"Dry space is not afraid of problems, problems must be solved!"After that loss, our launch site was not frustrated and discouraged, everyone was holding their breath, and various systems and posts were immediately put into the preparation of the rocket return flight。Wang Guangyi recalled that we all pursue our dreams and strive for Wenchang with persistent faith。

　　For Wang Guangyi, the challenge of completing the transition from long seven to long five is extremely huge。Although Chang V and Chang VII are both new low-temperature rockets, the differences are obvious: from the head, a core stage diameter of 3.35 meters, one 5 meters;In terms of fuel, Long seven uses liquid oxygen kerosene, long five uses liquid hydrogen and liquid oxygen。The two rockets use two sets of ground equipment and facilities, and the training and assessment outline for training personnel is also completely different。

One less problem, one more chance

　　In order to touch the temper of the long five rockets more accurate and transparent, Wang Guangyi has run to the rocket development and production factory three times。From the basic knowledge to the principle of equipment, from the design scheme to the parts, from the basic operation to the emergency treatment, he completely zero himself, like a "primary school student", from the most basic learning, from the simplest to do。He said the launch was the culmination of the hard work of thousands of astronauts。The "01" commander is the last link of the launch mission, and cannot waste the results of so many people's hardships because of their negligence。

　　Wang Guangyi said that due to the long time span of the mission, 53% of the system commanders and operators of important posts in the station are fixed for the first time, and 1/5 of the new staff。He went from "student" to "teacher."。Aiming at some young comrades basic knowledge is not solid, organization and coordination ability is weak and other problems，He organized the preparation of a new training and assessment program，Lead the team to participate in the task simulation training of the whole system, the whole elements and the whole process，More than 70 exercises, such as product approach, vertical assembly, refueling and launch, have been set up to cover every link of the launch mission。In addition, we also exchanged one-to-one written examination, comprehensive thinking and defense for key professional posts, and our post ability improved quickly, and 100% passed the post assessment。

　　As the leader of the launch site system, Wang Guangyi also led the system to improve the overall mission documents and emergency plans, and carried out more than 50 various emergency drill projects。As he wrote in his notebook: One less problem, one more win!

70,000 particles, ultra-clean

　　During the preparation of the mission, the cleanliness of the spacecraft is not higher than 350,000 particles, air conditioning system personnel carefully check and clean the filter of the tower fairing air conditioner, in the first self-test, the cleanliness has reached 100,000 particles。To make it a little more reliable，They drill into the unit，Wipe the inside of the device inch by inch，Narrow space，So cramped that my hands and feet feel numb，Long exposure to bright light，The eyes are dry and uncomfortable，I'll take care of you when you're tired，People change their standards，By this relay，The retest came up with only 70,000 particles，Ultra high level of cleanliness。

　　The reporter learned that in order to successfully complete the mission, the launch site has done the ultimate work。The long five rocket has a large arrow body and a lot of accessory parts. In the past, the unloading process was to use one day to receive the product to the site, and then use one day to unpack and unload the car, so that two trips back and forth would take four days。In this mission, Wang Guangyi boldly asked for change, after full demonstration, the program was adjusted to receive all the products in two consecutive days, and then one and a half days to unpack and unload the car, so that it saved half a day, half a day for the space shuttle, but very valuable, leaving enough margin for the test phase。

Wanted the kids to see a launch

　　On the eve of the launch, multiple system commanders reported their work progress and problems to Wang Guangyi from time to time。Wang Guangyi opened the laptop he carried with him and carefully recorded one by one, and patiently answered the question。In this task alone, more than 50,000 words were recorded in dense detail, and the progress of work, hidden problems and handling methods were clearly visible。

　　Talking about the desire, Wang Guangyi said that every space launch, cannot do without the support and pay of the family, the mission preparation time is long, want to let the lover and children to the scene to see a launch, "They are afraid of affecting me, said several times are refused.。We'll see if we get a chance later。”