Cheng Tangming, deputy chief designer of Anhui Elements Helping Long March No. 7, is a fellow of Tongcheng

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At 8:00 p.m. on June 25, China's new generation of medium-sized carrier rocket, the Long March 7, was ignited and launched at the Wenchang Launch Site in Hainan, which was successful in one fell swoop, marking a new prelude to the construction of China's "space homeland". Xin'an Evening News and Anhui Network reporters learned that Cheng Tangming, deputy chief designer of long march seven, is a native of Tongcheng, Anhui. Yesterday afternoon, reporters from the Xin'an Evening News and the Anhui Net contacted Cheng Tangming, who was far away in Wenchang, Hainan, and asked him to recall the exciting moment.

【Narration】

Eight years of hard work at that moment were worth it

At exactly 8:00 p.m. on the 25th, accompanied by a huge roar, the Long March 7 carrier rocket took off from the launch platform about 800 meters from the seashore, dragging a dazzling white tail flame and flying into the vast space. When the fire was ignited, Cheng Tangming was in the measurement and control center at the back end, "At that time, I was a little nervous, but I was still very confident." ”

At about 8:10 a.m., the Long March 7 accurately sent the multi-purpose spacecraft's shrinkage return module load assembly into the predetermined orbit. "The rocket's mission is complete. When the 'normal separation of loads' was heard, the measurement and control center immediately boiled. Cheng Tangming said that the development of the Long March 7 was officially launched in November 2008, and at that moment, he felt that the eight years of hard work had been rewarded.

"Anhui Elements" helped the Long March 7

The vertical assembly, vertical testing, and vertical transition of the rocket at the launch site are called "three-vertical mode". The "three-vertical mode" used in the active rocket, its arrow-ground connection work in the technical area and the launch area to be carried out twice, while the Long March 7 rocket adopts the "new three-vertical test and launch mode", only one docking can complete the work, the probability of failure after transferring to the launch area is lower, and the working time of the launch area is shortened.

Cheng Tangming told the Xin'an Evening News and Anhui Network reporter that the soaring sky of the Long March 7 has the help of "Anhui elements", such as, "the rocket is transferred from the technical area to the launch area in a vertical state to a large platform in the launch area, called the mobile activity launch platform, and there is a set of air conditioning devices in this platform, which is made in Hefei." ”

【Plan】

In the future, manned spacecraft will also be launched

Cheng Tangming told the Xin'an Evening News and Anhui Network reporter that the main goal of the Long March 7 is to prepare for China's space station project, carry cargo spacecraft, and after the establishment of the space station, it will regularly ascend some goods every year, such as food, water, etc., to provide help for the space station's life support system. ”

In addition, according to Cheng Tangming, as a new generation of medium-sized carrier rockets, the Long March 7 is not only to meet the needs of China's manned space station project to launch cargo spacecraft, as a manned rocket to launch manned spacecraft research, follow-up is also in progress.

It's a step closer to the "space home"

The first flight of the Long March 7 was the first launch of a space laboratory mission aimed at building a space station. For Cheng Tangming, the successful launch of the rocket was only the beginning, and soon, his figure appeared in various meetings again.

Cheng Tangming told the Xin'an Evening News and Anhui Network reporter that after the first flight mission, the Long March 7 rocket will undertake the launch task of China's first space cargo spacecraft , Tianzhou-1, next year, and build a "heaven and earth transportation corridor" for China's long-term manned space station.

"Around 2020, China will also build its own space station." Cheng Tangming said that with the completion of a series of space missions such as the Long March 7, China is getting closer and closer to the goal of the space station.

Dong Yuxiang Yao Duliu Xin'an Evening News, Anhui Net reporter Chen Mu

Latest Developments)

The miniature version of the "Ark of Life" landed safely

At 15:41 on the 26th, the multi-purpose spacecraft lifted off by the Long March 7 carrier rocket shrank the return capsule and landed safely in the gobi area southwest of the Dongfeng landing site, with good appearance and normal state.

The multi-purpose spacecraft is about 2.3 meters high than the return capsule, the maximum outer diameter is 2.6 meters, the total mass is about 2600 kg, and the orbital flight time is about 20 hours.

"The multi-purpose spacecraft return capsule is aimed at China's future manned deep space exploration, and comprehensively meets the needs of follow-up reservice applications and low-cost round-trip transportation in the world." Zhang Hongtai, president of the Fifth Research Institute of the Aerospace Science and Technology Group Corporation, a multi-purpose spacecraft return module development unit, introduced that in order to save scientific research funds, the multi-purpose spacecraft return capsule for the mission is a formal and reduced version. Different from the "bell cover" shape of the predecessors of the Shenzhou spacecraft's return capsule, it is inverted cone-shaped, like a "bullet". Don't look at the small body, can bear the heavy responsibility - the multi-purpose spacecraft shrinkage return capsule undertakes the arduous mission of obtaining the free flight aerodynamic data of the return capsule for the first time in orbit in China, exploring reusable design, verification and evaluation technology for the first time, and verifying the performance of metal materials and manufacturing technology for the first time. A solid first step has been taken towards building the "Ark of Life" for China's future manned deep space exploration.

The relevant person in charge of China's manned spaceflight project said that the successful recovery of the shrinkage return capsule of the multi-purpose spacecraft has laid an important foundation for the demonstration design and key technical research of the follow-up new manned spacecraft, marking the realization of the set goal of the first flight mission of China's Long March 7 carrier rocket.