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Chapter 1539 Liquid Oxygen-Kerosene

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    No wonder Mr. Tian Changmao was so surprised. There were more than a dozen rocket engines behind Zhuang Jianye, who was dressed in casual clothes. That's all. The key is that Mr. Tian had never seen the style of those rocket engines.

    The shiny pipes and even the outer wall of the bell-mouthed tail nozzle are also shining with a metallic luster.

    That¡¯s all. The key is that there is an extra small nozzle next to the tail nozzle, which looks a bit nondescript but integrated.

    Not only is the structure of the entire rocket engine very compact, but more importantly, it should be very light in weight. Because a dozen of them together can be easily lifted to the other end of the factory by a 20-ton gantry crane, which obviously shows how light it is.  Reached an amazing point.

    We must know that the same number of rocket engines produced by other domestic aerospace companies would require at least a 50-ton gantry crane to barely lift them.

    ¡°However, this is not the focus of Mr. Tian¡¯s attention. The main reason why he is surprised is that the Xikang Factory produces rocket engines themselves.

    You must know that although China Tengfei is involved in the aerospace business, its business scope is limited to some launch vehicle bodies and fuel tanks for long-range missiles. Even though it undertakes projects to develop solid launch vehicles, the core solid rocket motors and overall control systems are other aerospace systems.  Provided by the manufacturer.

    This is not to say that China Ascendas does not want to do this business, but that when it comes to military matters, the threshold for entry is very high. China Ascendas¡¯s background is that the hardware is not up to standard. Because of this, to this day,  Domestic rocket engines are still controlled by several major manufacturers in the system.

    This is also an important reason why Zhuang Jianye put aside China's booming aerospace business and started a new venture to create ztm-nb space exploration company.

    If you want to do something but don¡¯t want it done, just throw away the burden and do it yourself.

    Aren¡¯t the barriers to entry involving the military high? Then ztm-nb Space Exploration Company might as well completely cut off its business with the military and enter the head office as a purely civilian aerospace startup company.

    Of course it is possible. After all, with the support of China Tengfei, the entry threshold for purely civilian aerospace is still very easy to overcome. However, in addition to crossing this minimum threshold, the industry has no intention of ZTM-NB Space Exploration Company to engage in such a full industry chain operation.  The model is not promising.

    You must know that the technical difficulty of aerospace is not much lower than that of aviation, especially several key components, which are the optimal solutions accumulated by mankind in the past half century.

    If China wants to take off on its own, it is ready to complete the journey that the domestic aerospace giants have taken for more than half a century. No matter how you look at it, it is a joke.

    What's more, the input-output ratio of aerospace is notoriously low. Often more than 90% of the weight of a launch vehicle is fuel and oxidizer, and less than 10% is used for payload. It can be said that a spacecraft  Every cubic centimeter really smells like money.

    Because of this, general space launches are considered profitable as long as they can ensure a balance of payments. If the spacecraft can perform its design level, it will be considered profitable. As for the cost of research and development, manufacturing and launch of the launch vehicle, it is a confusing account.  There's no way to calculate it.

    If not, why is the aerospace industry handled by the national team? There is no way. Only the country, and a powerful country at that, can afford such an important national weapon. General enterprises, let alone normal space launches, just do  Each sounding rocket is expected to be quickly overwhelmed by the huge investment.

    When Ke Zhuang Jianye founded ZTM-NB Space Exploration Company, he promised to launch the first launch vehicle within 5 years, achieve profitability within 8 and a half years, and reduce the current domestic space launch costs by 50% within 10 years.

    This is said with great pride, but the industry scorns it. Domestic aerospace production costs are already the lowest in the world. On this basis, a further 50% reduction would be impossible, if not impossible.  Maybe, if you want to know which aerospace-grade products are not made with money, it is already great that ztm-nb Space Exploration Company can keep the existing costs from rising. Does it still want to reduce it?

    Either Zhuang Jianye is dreaming, or Zhuang Jianye is making a model, otherwise there is no possibility at all.

    Precisely because of their negative outlook on ZTM-NB Space Exploration Company, many senior leaders and authoritative experts in the aerospace field, including Tian Changmao, did not pay much attention to the Xikang plant when it was being built.

    Later, I heard people say that the management of Xikang Factory was chaotic and the organization was loose. Tian Changmao and others became even less concerned.

    However, just when Tian Changmao and others had almost forgotten about the Xikang Factory, the live broadcast of CCTV not only brought it back into people's sight, but more importantly, they discovered that the Xikang Factory actually used the most critical rocket of the launch vehicle.  The engine was taken out.

    How many years has it been?

    It seems that in about 3 years, Xikang Factory will produceBuild your own rocket engine?

    Not to mention anything else, this speed alone was enough to shock Tian Changmao.

    ¡°Grandpa~~Grandpa~~Grandpa?¡±

    Just when Tian Changmao was stunned, Tian Luyi on the side suddenly shouted a few times, bringing Tian Changmao's thoughts back to reality: "I think Zhuang Jianye's ztm-nb Space Exploration Company still has something. After all, not every aerospace company  If a company in this field has the ability to produce rocket engines, even if it is just a low-end engine for small launch vehicles, that would be a great breakthrough."

    After listening to his grandson's words, Tian Changmao was startled for a moment, then narrowed his eyes and looked carefully at the rocket engine being lifted behind Zhuang Jianye. Judging from the size and weight, it was indeed not a powerful thing, so he nodded: "Indeed, it can be produced within three years."  A rocket engine with a small thrust is already a miracle. It can be seen that Zhuang Jianye is still very capable. It is just that the small thrust is simple, but it is difficult to go up. After all, the rocket engine is also more difficult the greater the thrust. Nowadays, except for Russia and the United States  In addition, no one in the world can produce a high-thrust rocket engine of more than 300 tons. Even if it is a 50-ton rocket engine, only four or five countries in the world have such capabilities. They are all countries and Zhuang Jianye's companies  "

    Mr. Tian did not say any more, but shook his head slightly. It was obvious that he was still not optimistic about the subsequent development of ZTM-NB Space Exploration Company.

    However, just when Mr. Tian sighed and was about to say something else, in the live broadcast that had completely become a one-man show by Zhuang Jianye, after Zhuang Jianye gave a general introduction to the Xikang Factory, he suddenly waved to a forklift master not far away.  The forklift master immediately drove over with the loaded rocket engine and the forklift.

    Zhuang Jianye pointed to the nearly 3-meter-tall rocket engine that had just been packed in the box, took a picture of the extremely bright tail nozzle below, smiled and said to the camera: "This is what our ztm-nb space exploration company developed.  The first practical rocket engine, the dpz-2d liquid oxygen-kerosene rocket engine, has a total weight of 547 kilograms, a sea level thrust of 66.5 tons, a sea level specific impulse of 282 seconds, and a thrust-to-weight ratio of 150"

    Before Zhuang Jianye finished speaking, Mr. Tian jumped up from the sofa in front of the TV. He stared at the DPZ-2D liquid oxygen-kerosene rocket engine in the TV and murmured in disbelief.  Said: "Liquid oxygen-kerosene 66.5 tons of thrust, how is this possible, how is it possible"

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