It is precisely because of this that they first manufactured the first manned aircraft of Tiangong technology at sea, which is the most important part of Tiangong technology, and then developed the aerospace aircraft step by step and the spaceship that can really fly freely in the universe in the future.


    However, fortunately, the first manned aircraft of Tiangong technology has been finally designed at this time. At the same time, the parts of the first manned aircraft designed by Tiangong technology have also entered the manufacturing stage of parts. As long as the parts manufacturing is completed, their first manned aircraft of Tiangong technology will also enter the final assembly and any test flight.


    However, since Tiangong technology is the first time to manufacture a manned aircraft, and it is also a medium-sized manned aircraft, even if it is designed and manufactured parts, it is not simple to assemble them.


    Of course, there are millions of parts for an aircraft. Tiangong technology can''t manufacture all of them, or some parts will be purchased, such as some screws, nuts and other parts, as well as some electronic equipment.


    At the same time, in terms of rocket development, Tiangong technology also continues to develop. With the increasing number and completeness of aeroengine models of Tiangong technology, Tiangong technology will also transfer its research and development of engines to the research and development of rocket engines in the future.


    At the same time, Tiangong technology will also increase the research and development of some new concept rocket engines, such as pulse detonation engines used in the atmosphere and pulse detonation engines used in space and the atmosphere.


    Nuclear engine, atomic engine, ionic medium engine, etc.


    Of course, in terms of various new rocket engines, in fact, Wang Bin and Tiangong technology have already begun to study, and even some have achieved results and reached the practical stage.


    For example, for the pulse detonation engine used in the atmosphere, Tiangong technology has now developed to a practical stage. The maximum diameter of its engine tail nozzle can now be 50 cm, but in terms of thrust, the static thrust is 50 kn, that is, about 5 tons.


    In terms of maximum thrust, because the properties of pulse detonation engine and ramjet are similar, when the aircraft speed reaches more than Mach 2.2, the thrust of the engine will rise sharply and finally reach the maximum thrust of the engine. Therefore, the maximum thrust of this engine actually reaches about 9.5 tons.


    Although such thrust is still a big gap compared with the thrust of more than ten or twenty tons of other aeroengines of Tiangong technology, don''t forget that the nozzle diameter of this engine is only about 50 cm, and compared with turbofan, turbojet and other engines, the total amount of this engine is also very light.


    After all, the weight of turbofan and turbojet engines is often several tons or even higher, and the weight of this pulse detonation engine, according to the design data, is only about 200 kilograms, that is, 0.2 tons.


    This also means that the specific impulse of this engine is several times that of a turbofan or turbojet engine, which is definitely great good news for an engine.


    Of course, even so, the thrust of their Tiangong technology engine, especially the static thrust, is still very insufficient. Even if such thrust has reached the usable standard, the scope of use is still very limited.


    If you want to really use it on the aircraft, especially for their Tiangong technology, the thrust must be at least more than 10 tons.


    Thinking of this, Wang Bin immediately walked out of his office and went to the rocket engine R & D laboratory. On the way, Wang Bin was still thinking about the new rocket engine.


    Although Tiangong technology is in the process of R & D of various new engines, in addition to great progress in the R & D of pulse detonation engine, there is not much progress in the R & D of other engines, especially in the R & D of nuclear rocket engine and ion rocket engine.


    Because the county where Tiangong technology is located is a coastal county and city, the personnel here are very dense. It is impossible for Tiangong technology to develop, produce and launch nuclear rockets here. Let alone that the nuclear rocket is essentially the continuous detonation of micro nuclear bombs, so once the rocket has an accident, it is proper for a nuclear bomb to explode.


    The nuclear radiation generated during the research, development and production of launch rockets is also huge, which will pose a fatal threat to the vast majority of nearby people. Therefore, it is absolutely impossible to develop nuclear rockets here. At the same time, because experts and scholars in nuclear research and development are not accessible to ordinary people, Therefore, there are very few experts, scholars and R & D personnel of Tiangong technology in this field, and these people are basically from official support personnel, and the R & D work can only carry out theoretical R & D work.


    However, fortunately, with the help of the government, their Tiangong technology is also building relevant laboratories and launch sites in a deserted place in the northwest. Therefore, Wang Bin is still very looking forward to the completion and operation of this laboratory.


    After all, although it is impossible to carry out substantive R & D work here, in terms of theoretical R & D work, because Wang Bin has provided a large number of materials and technologies, their Tiangong technology has made very rapid progress in theoretical R & D work. Even the design of their first nuclear powered rocket has been carried out at this time, presumably, When the laboratory is completed, they can immediately enter the prototype manufacturing and subsequent testing.


    As for the ionic medium rocket engine, that is, the research and development of electric rocket, although Tiangong technology has also been carried out, because Tiangong technology does not attach great importance to this aspect, the progress of research and development is not fast. Of course, this is only relative to other projects.


    Internationally, their research and development of ion medium rocket engine of Tiangong technology is definitely the most advanced.


    After all, the maximum thrust of the most advanced ionic medium rocket engine in the world is only cow level thrust, but their Tiangong technology, the thrust of the most advanced ionic medium rocket engine has reached 10000 cow level.


    However, such thrust is still insufficient for Tiangong technology, but it is absolutely a sharp tool for orbit change and deep space exploration when used in some special spacecraft, such as satellites.


    Even if their Tiangong technology successfully develops an aerospace aircraft in the future, they can use this engine for flying and orbit change in the universe.