Huaxing Group was able to make such a big breakthrough in rocket technology so quickly, in fact, the source of technology mainly comes from the technical team led by Ban Zhinong and the support of the entire Huaxing Group company's technical system.

In the 80s, Ban Zhinong's previous master, Academician Zhang Guitian, put forward the idea of developing a high-pressure refueling liquid oxygen kerosene engine and the work of pre-research, and later included the plan of this engine in the 863 plan through hard work.

Ban Zhinong is also the technical backbone of this research and development team, which in 1990 introduced two RD-120 high-pressure refueling liquid oxygen kerosene engines from the former Soviet Union for principle research, and it took almost five years to master the technology of this engine.

On this basis, Ban Zhinong also designed a 120-ton domestic YF-100 high-pressure refueling liquid oxygen kerosene engine, but in the subsequent test runs of the whole machine failed, and there were doubts from the outside world.

Eighty percent of the newly developed rocket engine technology developed by Ban Zhinong after joining Huaxia Sea Launch Company comes from the domestic YF-100 high-pressure refueling liquid oxygen kerosene engine technology, but unlike before, Huaxing Group has reached a very high level in the preparation and processing technology of superalloy materials at this time, and the control valve of the YF-100 refueling cycle started by itself, the engine swing electro-hydraulic device, the main turbine pump spindle operation stability and dynamic seal reliability have been improved. The engineering and technical problems of hoses and other very critical components that can withstand high temperature and high pressure and the quality of which are not up to par have all been solved by the many engineering and technical teams of Huaxing Group!

The various material technologies and combustion chamber technologies accumulated by Yonghan Aviation Technology Co., Ltd. in aero engines, and the ultra-precision machining equipment and material processing technology of the Machine Tool Research Institute have all been applied to rocket engines in recent years.

The Bluestar 1 engine performed very reliably when several prototypes were built and tested in various tests, and far exceeded the original design specifications.

Of course, there have been some problems in the middle, but they are all problems in the control software, and there is no problem with the rocket engine in the hardware, which fully reflects the strong strength of Huaxing Group in engineering technology.

Over the past half century, in order to improve the efficiency of space delivery, people have made a lot of efforts to improve the specific impulse of rocket engines, but the results have not been great, and the full potential of rockets has basically been squeezed out.

There are three ways to dramatically improve the specific impulse of a rocket: stronger propellant, better circulation, and larger nozzle area ratio.

At present, the most practical propellant combination with the highest specific impulse is liquid hydrogen plus liquid oxygen, although there were stronger fuels before, such as metal beryllium, non-metallic boron, aluminum hydride, borohydride, etc., and stronger oxidants are fluorine gas, fluoride oxides, chloride oxides and so on.

These things, under the similar combustion pressure and nozzle area ratio, can increase the specific impulse to more than 500 seconds, but these things are highly toxic, strong corrosion, and unstable in one of the mighty drugs, and the price is 2 orders of magnitude higher than traditional fuels, and most of the reaction products are highly toxic, which is difficult to apply in practical application anyway.

Hydrogen fuel is an extension of Huaxing Group's hydrogen oil application technology, which has been researched and developed for many years, and the energy density is twice as high as that of aerospace kerosene, and it also solves many technical problems of hydrogen oil combustion, which is a very environmentally friendly fuel.

The technical team led by Ban Zhinong is still doing in-depth excavation in the improvement of the circulation method.

The staged combustion efficiency is high, the specific impulse is large, and the pollution is small, but the corresponding development of this technology is difficult, requiring better materials, more testing, more time and money, high investment, high risk, and large volume and weight of the mechanism.

In terms of investment in research and development, the investment in staged combustion engines is much larger, and the huge RD-170 engine was tested 911 times before 1993, and these giant beasts devouring hundreds of kilograms of fuel per second will burn tens of thousands of tons of fuel in the test alone.

In order to test rocket engines, the Huaxia Sea Launch Company has also continuously carried out various technical tests, and in more than two years, a total of more than 20 billion yuan has been smashed, most of which has been smashed on various equipment.

Moreover, Ban Zhinong did not adopt an aggressive technical solution, and basically used mature technology.

However, even so, Liu Fuping of Yonghan Aviation Technology Company is indeed a genius in the research and development of superalloy materials, and has made a special alloy material that can withstand high temperatures close to 5000 degrees, and has developed the preparation and processing technology of this material.

It is with this material technology that the rocket engine designed by Ban Zhinong was originally 100 tons of thrust, but the thrust reached 150 tons when it was tested!

Four such engines are crammed under the first-stage rocket engine, with a total thrust of 600 tons, which is already the top level in the country.

Although Da Mao made the RD-170 and RD-180 before, and is now working on a smaller version of the RD-191m, it is also difficult, and now Da Mao has not mastered such a superalloy material technology, resulting in the "Angara River" launch vehicle from 1993 to the present, and it has not been able to be put into service until now.

This also made the technical team led by Ban Zhinong full of ambition, and also proposed to develop a single rocket engine with a thrust of 500 tons in five years.

The phrase "Force" brick flying also applies to rockets.

The successful trial production of the Bluestar-1 rocket engine is of great significance and is the cornerstone of Huaxia's aerospace in the next 20 years.

The design of Ban Zhinong's rocket fully takes into account the needs of future space applications, and introduces advanced modular and generalized design concepts, and the combination of 150-ton and 10-ton engines developed has fully met the needs of today's and nearly 20 years of space payloads.

Among Yang Jie's goals, the rocket developed by his company only needs to meet the load of 25 tons in low earth orbit and about 10 tons in synchronous orbit.

At this stage, his goal is to develop the commercial satellite market, and the construction of high-speed communication satellite network is the goal for the next ten or two decades.

As for the giant rocket, Yang Jie will only carry out technical pre-research reserves, like the two giant rockets designed for special missions that have nothing to do with the national economy and people's livelihood - Saturn 5 is for manned landing on the moon, and Energy is for militarization of low earth orbit.

Deep space exploration requires the strength of the whole country in China to do it, and the current Huaxing Group Company does not have this technical strength, and Yang Jie will not break in rashly.