Photo by Wang Jiangbo

　　China News Service, Beijing, June 5th (Ma Shuaisha, Dong Jiaying, Sang Qian) On June 5th, the Long March 2 F Yao 14 carrier rocket (referred to as "Chang 2 F rocket") successfully sent the Shenzhou 14 manned spacecraft. This is the third time that the Chang-2F rocket has sent astronauts into space since the on-orbit construction of the Chinese space station began.

Going out again, what is so special about this rocket?

Rocket experts bring the latest interpretation of "astronaut exclusive train".

"Standing" the longest time

　　The Chang-2F rocket was developed by the First Academy of China Aerospace Science and Technology Corporation in accordance with the requirements of launching manned spaceships.

Since the implementation of the "God 12" mission, the Chang-2F rocket has adopted the launch mode of "launching 1 round, backing up 1 round" and "rolling backup", adding "double insurance" to the life safety of astronauts.

　　The Chang 2F Yao 14 rocket launched this time is an emergency rescue rocket for the "Shen 13" mission.

With the successful return of the Shenzhou 13 flight crew on April 16, the Chang 2 F Yao 14 rocket ended its duty mission and changed from an emergency state to a normal mission state.

　　If counting from the "hoisting and erecting" in August last year, plus the launch preparation time, the standing time of the Chang 2F Yao 14 rocket has refreshed the previous record of more than 6 months of "standing guard" time set by the Chang 2 F Yao 13 rocket .

Chang Wuquan, the chief designer of the First Dean 2F rocket, said that although the Chang 2F Yao 14 rocket has a longer standing time, it is still within the rocket's capability.

　　According to reports, during the preparation for the launch of the Chang 2F Remote 14 mission, the model team also needs to simultaneously carry out the assembly and testing of the Chang 2F Remote 15 rocket to complete the emergency rescue state settings.

"Through two mission explorations last year, the preparation time for this year's launch is expected to be further shortened," Chang Wuquan said.

The most precious load

　　In the Long March rocket family, the mission of the Chang 2 F rocket is slightly special.

If other rocket "brothers" are expanding their territory in terms of weight and height, the Chang 2F rocket devotes more energy to perfecting itself, because its success or failure is related to life.

　　In 2022, the Chang-2F rocket plans to send two crews, Shenzhou 14 and Shenzhou 15, a total of 6 astronauts into space.

After completing the orbital construction of the space station this year, the space station project will be transferred to the application and development stage of more than 10 years. The initial plan is to launch two manned spacecraft and two cargo spacecraft every year, which puts forward higher requirements for rocket safety.

　　"The payload of other rockets is valuable, no matter how valuable. The payload of the Chang-2F rocket is the astronauts, and their lives are priceless." The chief designer of the first-year-2F rocket said easily that it is necessary to ensure the safe entry of astronauts into space. Each manned rocket developer has a special mission and responsibility.

　　In order to ensure the safety of the astronauts, the Chang-2F rocket has specially designed an escape system. If the rocket has an accident, the escape system will be activated, and the escape vehicle will fly away from the faulty rocket with the return capsule like "pulling a carrot".

After the return capsule is separated from the escape vehicle, open the parachute and slowly descend to the ground.

　　"We develop escape rockets according to the highest standards and strictest quality. It condenses the efforts of several generations of astronauts, but it is the wish of every astronaut to never enable this function." Teacher Qian Hang said.

　　This year is the decisive year for the completion of the construction of the space station, and also the 30th anniversary of the establishment and implementation of China's manned space project.

In the past 30 years, the Chang-2F rocket has participated in every step of the "three-step" strategy of China's manned space project. Since its first flight in 1999, it has successfully launched 14 Shenzhou spacecraft and 2 space laboratories, including 9 manned flights. The launch mission has a 100% success rate.

In the next few years, the Chang-2F rocket will lift more astronauts into space, leaving more and more Chinese people in the vast universe.

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