Two months passed in the twinkling of an eye in Wang Bin''s busy life. At this time, it is golden autumn and September. In this month, Wang Bin and their Tiangong technology, in addition to the large bypass fan engine that has been successfully developed in the test run.


    Wang Bin''s Tiangong technology has developed another engine, and like the previous fan engine, the engine developed this time is also a fan engine.


    And the channel of this fan engine is larger than that of the engine they have developed before.


    Of course, a more natural fan means that the greater the thrust ratio of the engine, the greater the fuel consumption. However, since this engine is the same as the previous engine, it is also an engine with large bypass ratio. Naturally, it is impossible for the aircraft to fly at supersonic speed. After all, the turbofan engine with large bypass ratio cannot fly at supersonic speed.


    However, as a civil aviation engine, I don''t want to have the ability to fly at supersonic speed.


    In addition, during this period of time, Wang Bin''s rocket engine R & D Laboratory of Tiangong technology has finally completed the construction and even the installation of various internal equipment with the efforts of the military engineering forces day and night.


    At the same time, at this time, the rocket launch pad of Tiangong technology has been almost built. According to Wang Bin''s estimation, the military engineering force can complete the construction of the launch pad in half a month.


    Of course, in addition to these achievements in construction, Wang Bin''s company has also made achievements in many other aspects. For example, the tg-s1 aeroengine, that is, the turbofan, which has already started full-life test run, has accumulated 6000 hours of test run at this time, This can be similar to the service life of the tg001 engine that Wang Bin and his team have successfully developed before.


    However, according to their prediction, the service life of this engine will far exceed that of the turbojet engine they developed before, at least more than double that of the tg001 engine, that is, the first overhaul time will be at least 10000 hours.


    If you add three renovations until scrapping, the whole life of this engine will be at least 40000 or 50000 hours, which means that it is definitely far enough for a civil aviation engine.


    The tg-s2 turbofan engine, which has just been developed, adopts more advanced technology and better bearings at the time of design. Therefore, according to the data, the service life of this engine will be longer than that of the previous S1 model. According to the data, it can be delivered for at least 15000 hours.


    In addition, in terms of turbojet engine, after continuous improvement in the past two months, the performance of tg001 engine has also been qualitatively improved. First, as an engine, it is naturally in terms of thrust.


    The maximum non afterburner thrust of the improved engine has reached 16.5 tons, and the maximum afterburner thrust has reached 20 tons up and down. The tail nozzle of the engine can also achieve the vector disguised function.


    Finally, there is the problem of fuel consumption and engine life. In terms of fuel consumption, although after improvement, the fuel consumption of the engine when starting the maximum thrust has increased, the fuel consumption of the engine in cruise state is not so large, but less than before.


    In terms of service life, with the replacement of better bearings for the engine, its service life naturally increases. Although the specific test is still in progress at this time, according to the data, it can also reach at least 8000 to 10000 hours.


    Finally, the weight of the engine itself. Although the thrust of the engine has greatly increased after the improvement, the weight has not increased much, but it is more than 100 kilograms than before.


    It can be said that in recent months, Wang Bin''s Tiangong technology has developed very smoothly. Even in terms of rocket engine, they have completed the research and development of the first engine, and the products they have developed are much better than Wang Bin expected.


    Originally, Wang Bin thought that even if he had purchased rocket engines from the system and had complete models, it was still difficult to develop engines of the same type as star chopping at the current level of human civilization on earth.


    However, this is not the case. The data of the first engine developed by their Tiangong Technology Institute this time is stronger than that of the same engine for cutting stars, because Wang Bin said from the system that the thrust of the first small thrust rocket engine purchased is less than 300 kn, that is, less than 300 tons.


    However, although the structure of the small thrust engine developed by Wang Bin and Tiangong technology is similar to that of star cutting, in many aspects, the materials used by Tiangong technology are different. Using the fire arrow engine developed this time, the thrust actually reaches 350 kn, that is, 350 tons, It''s more than 50 tons of thrust than cutting stars.


    However, the engine developed by Wang Bin''s Tiangong science and Technology Institute also has its own defects compared with the same type of engine in the star cutting world. The engine in the star cutting world does not have any life problem. In other words, the rocket engine in the star cutting world is at least the same as the aircraft engine, often thousands or even tens of thousands of hours.


    This time, the engine developed by Wang Bin''s Tiangong technology will last more than half an hour under the maximum thrust.


    Of course, this level is very good compared with the same type of engine in the real world. After all, the service time of the same type of engine in the real world is calculated in seconds under the condition of maximum thrust.


    Of course, only with the liquid rocket engine, if you want to launch satellites, it is not enough, as well as the rocket body, rocket steering system, rocket control system and so on.


    But fortunately, during this period of time, Wang Bin''s Tiangong rocket R & D personnel, in addition to developing the first rocket engine, have made very good progress in R & D in these aspects, and have basically completed R & D.


    And the first rocket has also entered the construction process, and it will not be long before it can be completed.


    In other words, now they can launch their first rocket only after the construction of the rocket launch pad of Tiangong technology is completed.


    However, the launch of the rocket is naturally impossible. It also needs a carrier. However, because the load of the rocket of Tiangong technology is very limited, the load in low earth orbit is only 0.5 tons.