my country's manned moon landing may be ahead of schedule. Experts mention the lunar rendezvous and docking plan for the moon landing, which can be realized on the fifth day of the year.

At the China Aerospace Conference on April 25 this year, Mu Yu, director of the General Design Department of the First Academy of my country Aerospace Science and Technology Group, first introduced the Long March 9 that my country is developing, saying that it has a diameter of 10 meters and a lunar orbit carrying capacity of not less than 50 meters. It will provide important support for the establishment of lunar bases and the completion of larger-scale lunar exploration projects in my country's lunar exploration and lunar landing activities. But when he introduced these, he also said another manned lunar landing method, that is, at the current stage, if our country uses the method of circumlunar rendezvous and docking, and disperses the pressure of rocket launch through a comprehensive plan, then the low-Earth orbit carrying With a capacity of 27 tons, the goal of manned moon landing can be achieved, and the rockets it uses do not need giant rockets like the Long March 9.

So what kind of rocket do you need? If you look at the data of the low-Earth orbit carrying capacity of 27 tons, the carrying capacity of the Long March 5 is almost the same. According to Baidu Encyclopedia, its low-Earth orbit carrying capacity is 25 tons, and it is also said that it can reach up to 28 tons. Tons, if it is the latter, then the current Long March 5 can be satisfied; and if it is only 25 tons, then it should not be difficult to optimize the Long March 5 to increase its carrying capacity by two tons, or it is also possible to use The weight optimization of the manned lunar spacecraft can be satisfied by a little.

In this way, we can use two Long March 5s to complete the manned lunar landing activities. The first one can transport the fuel and return capsule required for the lunar landing to the lunar orbit, and the second one can transport the manned lunar landing spacecraft. Go to the lunar orbit to dock with it, replenish fuel and then descend to the lunar surface. After completing the lunar landing mission, it will ascend and dock with the return module, and then return to the earth. If I adopt this plan, then my country's manned lunar landing plan will be realized soon.

However, there are also people who say that the rocket that Director Mu Yu said "manned moon landing can be achieved with a carrying capacity of 27 tons in low-Earth orbit" is the 921 rocket, but in fact, the carrying capacity of the 921 rocket in low-Earth orbit far exceeds 27 tons, according to According to the existing information and data, this rocket adopts the parallel structure of CBC three core-stage rockets, with a diameter of about 5 meters, a height of about 87-90 meters, a launch mass of about 2,200 tons, and a launch thrust of about 2,700 tons. The orbital carrying capacity is more than 70 tons, which is stronger than the carrying capacity of the Falcon Heavy rocket developed by Musk's Space Exploration Technology Company, which has the strongest capacity at this stage. Therefore, only from the information of "low-Earth orbit carrying capacity of 27 tons" Looking up, what Mou Yu said should not be the 921 rocket. On the other hand, Mu Yu made a slip of the tongue at the time. What he wanted to say was that the Earth-Moon transfer orbit has a running capacity of about 27 tons, not the low-Earth orbit carrying capacity of 27 tons.

The Earth-moon synchronous transfer orbit of the 921 rocket is at least 25 tons, which is similar to what Mu Yu said. It can send the manned lunar landing spacecraft to the lunar orbit, because the weight of the moon landing version of my country's new generation of manned spacecraft is also 25 tons. Within tons, the 921 rocket has no problem completing this task. It is for this reason that the 921 rocket is also considered to be my country's future dedicated lunar landing rocket, so the possibility of this rocket being developed is still very high, and it uses all existing technologies. Important equipment such as engines are also readily available, and it is much easier to develop than the Long March 9.

However, Mu Yu still said on the 25th that the Long March 9 will be the main rocket for my country's future moon landing. After introducing the above-mentioned lunar landing plan to disperse the rocket launch pressure, he went on to say, "With the subsequent heavy-lift rockets (which are considered to be The development of the Long March 9) can reduce the number of docking around the moon and improve the carrying efficiency." That is to say, a rocket with a larger thrust can allow us to land on the moon more simply, faster and more efficiently.