After listening to the old expert''s words, Wang Bin also nodded and said, "don''t worry! Experts, Tiangong technology will make further efforts to develop more advanced aerospace engines! Now it''s just the beginning."


    "Good! Mr. Wang! I''m relieved after listening to you. I don''t think your Tiangong technology will disappoint wumi." Qin said.


    After that, Mr. Qin and these old experts stayed at their Tiangong technology booth for a while and left. After all, it is impossible for Mr. Qin and others to come to the air show just for their Tiangong technology. Many companies in the exhibition need to go and encourage them.


    After seeing old Qin and others off, Wang Bin returned to the reception room of the booth. Not long after he returned to the reception room, a person familiar to Wang Bin, led by some staff, walked into Wang Bin''s reception room, and this person was the boss of Kunlun airlines.


    "Hello, Mr. Wang!" when Du Haili of Kunlun company walked into the reception room and saw Wang Bin, he immediately smiled and said happily to Wang Bin.


    "Mr. Du, welcome!" and Wang Bin immediately stood up and said after seeing Mr. Du enter the reception room.


    At the same time, he was also very excited because he knew that their first order of Tiangong technology had been settled. After all, Kunlun company had a good cooperation experience with their company. Since Kunlun company purchased the first electric light helicopter engine from Tiangong technology, up to now, Their company has purchased nearly 100 light helicopter engines from Tiangong technology.


    Although, compared with the fuel engine, the price of Wang Bin''s light helicopter electric engine of Tiangong technology is not so expensive. It is only about one third of the price of the same power helicopter engine. Even if the price of two first generation batteries is added, it is almost the same as that of the fuel engine.


    However, in terms of profit, the profit of electric engine and superconducting battery is not small. After all, the cost of electric engine and battery is not high, and all the production costs add up to less than 50000. In other words, Tiangong technology also makes hundreds of thousands of profits every time it sells a set of battery and engine.


    Therefore, during this period of time, Tiangong technology has also made tens of millions of profits from Kunlun company.


    At the same time, the electric light helicopter produced by Kunlun company has been popular in the market and its sales are very hot. It is said that if you want to buy their electric helicopter now, you must make a reservation first.


    However, even so, it is impossible to get the helicopter at the first time. At least it will take several months or even more than half a year.


    It can be said that this electric helicopter developed by Kunlun company is very successful.


    At the same time, it is exactly the same. At this time, their company began to develop the next helicopter. This time, the helicopter developed by their company is no longer a light helicopter, but a medium helicopter with larger volume, heavier weight and larger payload, and it is also a general medium helicopter, It can be said that their company''s next plan is ambitious.


    However, Wang Bin can understand this plan of Kunlun company. After all, according to the overall technical level of Kunlun company, it is not impossible to develop a medium-sized helicopter, except for the engine problems. The reason why he dared not develop a medium-sized helicopter in the past is entirely due to the engine problems of the medium-sized helicopter, After all, the small helicopter developed by their company has encountered engine problems, not to mention medium-sized helicopters.


    Now, with the electric helicopter engine of Tiangong technology, they don''t have to worry about this problem at all, so they have launched this research and development work ambitiously.


    In addition, Wang Bin also got specific news. In addition to the plans for helicopters, their company is also preparing to develop commercial and agricultural fixed wing propeller aircraft, and has also started pre research and development, preparing to develop and issue a fixed wing propeller aircraft within the next two years.


    When Du Haili comes here this time, he is likely to negotiate with them to buy electric engines for medium-sized helicopters and fixed wing aircraft. After all, their company has tasted the benefits of electric engines.


    Sure enough, after the two were polite for a while, Du Haili directly said to Wang Bin, "President Wang! I won''t say much about other things. After all, today is an air show, and you still have a lot of things to do, so I''ll directly say the purpose of my coming this time.


    Our Kunlun company is ready to purchase a batch of electric engines for small helicopters from your Tiangong technology again, and the quantity required this time is also relatively large, and the quantity required is up to more than 500 units. I wonder if President Wang can provide you with Tiangong technology? "


    "Mr. Du! Let''s go! In terms of electric engine production, Tiangong technology doesn''t have any problems. Let alone a mere five hundred to Taiwan. Even if it is ten times more on this basis, Tiangong technology can provide it." Wang Bin said confidently.


    Compared with the fuel engine, the manufacturing of electric engine is much simpler, and the construction of production line is also fast. Even after the transformation of ordinary motor production line, it can be produced. Therefore, the maximum monthly production capacity of Tiangong technology in electric engine can reach as many as 500 or 600, and if necessary, It can be expanded at any time.


    Therefore, Wang Bin is not worried about the production capacity of electric engines. Naturally, the more orders in this regard, the better.


    "That''s good! I''m really worried that President Wang, your Tiangong technology''s production capacity is not enough. Since it is enough, our Kunlun company needs not only light helicopter engines, but also a number of medium-sized helicopter engines and a small number of electric engines of light fixed wing aircraft. I don''t know whether president Wang and your Tiangong technology can provide them?" Du Haili asked.


    "Mr. Du, I don''t know how much power you need for the electric engines of medium-sized helicopters and fixed wing helicopters?


    In terms of electric engines for medium-sized helicopters, Tiangong technology has three types: tg-zdz1 electric engine with a maximum output of 1000 kW, tg-zdz2 electric engine with a maximum power of 1500 kW, and tg-zdz3 electric engine with a maximum power of 2000 kW.


    Of course, if you think the power of these three engines is still insufficient, we also have larger electric engines, such as ddz1 electric engine with a maximum power of more than 2500 kW, ddz2 electric engine with a maximum power of more than 3000 kW, ddz3 electric engine with a maximum power of more than 35000 kW, and even helicopters with a maximum power of more than 5000 kW We also have engines! "Said Wang Bin.