It is precisely because of the Phoenix 5 series of aerospace aircraft, and now their Tiangong technology has only five. Therefore, at this time, the main vehicle for their Tiangong technology to build Pangu city is not the Phoenix 5 series, but the Phoenix 2 series. After all, compared with other larger aerospace aircraft, the Phoenix 2 series has a very high retention and acceptable carrying capacity, The use of Phoenix II Series transportation for modules of ordinary size is enough to be placed in larger modules. Naturally, only larger aerospace aircraft can be used.


    As for the Phoenix series, although Pangu city has also played an extremely important role in the construction process, its main purpose is not to transport goods, but to carry people between the ground and the space layer.


    At the same time, it is also the main means of transportation between the construction site of Pangu City, other space stations and the moon.


    Immediately, Luo Daling and them, like other staff inside the overhead plane, put on exoskeleton spacesuits and prepared to officially enter the construction site of pangucheng.


    Although the construction site of the ancient city of chessboard and the core area of the ancient city of chessboard have been built at this time, a behemoth with a length of more than 100 meters has been built, in fact, compared with the design data of the whole ancient city of chessboard, more than 100 meters has just begun, and the most important thing is actually more than 100 meters. In addition to the core cabin and other important sections, most of the other sections are actually just building keels.


    At this time, according to Luo Daling''s preliminary estimation, there are at least more than 10000 people at the construction site of the whole ancient city, and these people are under intense and orderly construction.


    Of course, the construction of Pangu city is not only completed by astronauts wearing exoskeleton armor. In addition to manual work in some places, there are also a large number of professional space construction equipment, such as a space multifunctional construction ship only the size of a car.


    Don''t look at these. The size of the construction ship is not large, only the size of a car, but the thrust of its plasma medium engine is not small. In addition, these construction ships, with two huge mechanical arms in front, can easily push giants hundreds of times heavier than their own weight in space.


    In addition, because the two manipulators adopt the design of multi joint structure, they can also do some fine work, such as screwing some large screws.


    Of course, if it is some very fine work, such as some small escrow arrangement, these space construction ships are still incompetent. In fact, Tiangong technology is also developing professional equipment for these fine work, such as using some smaller robots to replace manual work.


    After all, it is too dangerous to construct in space. It has only been more than a month since Tiangong technology started the pangucheng project. However, in the past month, many accidents have occurred at the construction site. Fortunately, due to the construction personnel at the construction site. They all wore professional exoskeleton spacesuits provided by Tiangong technology, so no one was injured, but it also made Tiangong technology and Wang Bin feel a lingering fear.


    Therefore, at this time, in terms of construction site management, on the one hand, Wang Bin has also started their central intelligent brain intervention of Tiangong technology, and on the other hand, let Tiangong technology pay close attention to the research and development of various space professional construction instruments and equipment.


    However, due to the lack of time, the space construction equipment you want can not be developed in a moment and a half.


    However, with the gradual deepening of the construction of the space layer, there will be more professional construction equipment. He believes that when the construction of the main keel of Pangu city is completed, most of the professional construction equipment will be in place.


    At the same time, according to Luo Daling and others'' interviews with construction workers, although space construction is very dangerous and hard, due to the lack of construction workers and engineers, these workers, like ground construction, adopt an 8-hour working system.


    After 8 hours of construction, there will be an air plane to pick them up and return to the ground. At the same time, new construction workers will be brought to take over their work.


    Some of these space shuttles belong to sky technology, some of them belong to the official, and some belong to other domestic aerospace companies.


    Therefore, Luo Daling can clearly see from the site that during the construction period, there are continuous air and space planes on the site. A large part of the air and space planes are passenger air and space planes, and some of the destinations of these air and space planes are Ziwei space station, some are lunar bases, and most of the air and space planes are naturally on earth.


    Another month passed in a hurry. At this time, after more than three months of construction, the core cabin project of Pangu city has been basically completed and entered the overall construction stage of the core cabin. According to Wang Bin''s Tiangong technology and official estimates, the core cabin project of Pangu city will be completely completed in half a year at most, that is, the end of this year, That is, the first phase project is completely completed, and then it will enter the second phase project of Pangu City, that is, the first ring project of the three ring projects of Pangu city.


    Compared with the first phase project, the actual quantities of the second phase project, that is, the first ring project, are not much larger than those of the core cabin of the first phase project, so the construction time will not be much longer than before. Since the ring diameter of the later phase III and phase IV projects is much larger than that of the first ring, the quantities of the fourth ring project will also be greatly increased, According to official estimates, it will take at least two to three years to complete.


    However, while the Pangu class space layer project of Tiangong technology and the overall keel of the core module project are about to be completed, the foreign ark class space city project is still under design, and even the design of the engineering drawings has just begun. According to their estimation, it will take at least one or two years to complete the design of the overall engineering drawings.


    Why are these foreign space agencies and space companies very disappointed? You know, for their ark space city, their space companies or space agencies have gathered the top talents in China to design the space city, but even so, the progress of the design work is very slow, This is still under the reference of Pangu city with Tiangong technology. If there is no design drawing of Pangu city as a reference, the ability of these space agencies and space companies needs to make it possible for you to design qualified space city engineering drawings in at least 20 years.


    After all, the construction drawings of the space layer are not general construction drawings, but they are extremely complex. Even Wang Bin himself, in fact, the design of the overall drawings is not designed by Tiangong technology, but purchased from the system of the technology mall.