The propulsion system of the new recyclable rocket has been greatly advanced after the previous supercomputing simulation analysis.

Although it is said that during the research and development, the problem of high and low matching of rockets was taken into account, and there are various models with different sizes of thrust.

But now the task is the most urgent, and the first thing to develop a successful propulsion system is to use the high-thrust scheme of 11 YF-110 liquid oxygen kerosene engines.

Of course, this is also the most difficult thrust system scheme to solve, after all, we all know that the more numerous, the more difficult it is to control it at the same time.

The last time I used supercomputing, I actually figured out the pros and cons of each design and how to optimize it.

Supercomputing simulation experiments show that the design scheme of the propulsion system with a central layout is not only better than the design scheme with a surrounding layout, but also simpler to optimize.

In order to design the propulsion system, the rocket research institute spent manpower and material resources to the extent that others were very surprised after hearing about it.

For testing, more than thirty YF-110 liquid oxygen kerosene engines alone were burned on the test bench.

That is, the current Rocket Research Institute, compared with the previous time, is even richer, otherwise no matter how bold Zhang Xingyang is, he would not dare to burn money like this.

You must know that even if the cost price of this engine is very low, under the condition that Zhang Xingyang's participation in the design and manufacturing is known, the cost is basically controlled at about two million.

Thirty engines, worth 60 million, all burned out on the engine test bench in less than a month.

It is equivalent to burning down almost five or six courtyard houses in the northern capital in one day.

Of course, such a level of money burning by the Rocket Research Institute is nothing.

After all, now is not the time to go crazy for a space race like before, when Furry Bear and Eagle Sauce faced off.

At that time, Mao Xiong and Eagle Sauce's annual investment in the aerospace field was almost always calculated as a percentage of GDP.

However, at this time, the domestic foundation was still relatively weak, and it was impossible to inject a huge amount of money in this area like the two former superpowers.

At this time, many domestic issues are to give way to economic construction, not only in the aerospace field, but also in many units related to key national defense undertakings.

In particular, the main ships of the navy, air force, and navy are basically backward models imported from the Mao Xiong family after the founding of the People's Republic of China, and I don't know how many years have not built new ships.

As for the Air Force, it is not easy, the eighth master has been guarding this sky for I don't know how many years, and it will take some time before the Jian-10 is born.

Of course, because of Zhang Xingyang, the J-10 will come to this time much faster than the original, and because there is no need to make a series of changes to adapt to the Su-27, the service time will be much earlier than the original.

Compared with the navy and air force, which can basically only rely on the export of equipment to find a way out, the space system does have more methods.

After all, the export of domestic equipment at this time was mainly based on army equipment, and the navy basically did not have any equipment for export, and its own fleet was not enough, so where could it be exported.

The Air Force exports more planes than the Navy, but not much.

There is a lot more business that the space system can do, and rocket launches for others are the most common, and satellite R&D and manufacturing actually have a certain amount of business.

If the recyclable rocket is successfully developed this time, the cost of domestic space launch will be further reduced, and there will be more rocket launch missions that can be obtained.

The propulsion system, consisting of 11 YF-110 liquid oxygen kerosene engines with a thrust of 1,132 KN, stands on the engine test bench like a troll.

Underneath the test bench are several wide flame deflector grooves, which are designed to direct the huge wake generated by the propulsion system during the test drive to the perimeter of the test bench.

This is also to prolong the service life of the test bench, otherwise the huge flame wake generated when the engine is started can easily burn the surface of the test bench.

After all, the power of these rocket engines is comparable to dozens of flame cannons, and the temperature of the tail flame can even reach more than 3,000 degrees.

You must know that the melting point of general superalloys will not exceed 2,000 degrees, and even the melting point of titanium metal is only more than 1,600 degrees.

It is difficult for a solid fortification made of reinforced concrete to withstand the test of high temperatures of more than 2,000 degrees.

Therefore, the surface of the test bench is made of ultra-high temperature resistant composite ceramic material, and the surface is even coated with a layer of carburizing film.

In order to extend the service time of the test bench.

After all, after that, the test bench needs to participate in the test of the propulsion system scheme verification a lot, in addition to this 1200 ton thrust system experiment, several lower thrust design schemes also need to be tested on this test bench.

In the future, the launch of some microsatellites will not be entirely dependent on heavy rockets that are mainly used to launch into geostationary orbit at an altitude of 36,000 km.

It also needs some less thrust, mainly used to launch satellites into low earth orbit.

Of course, after the successful construction of our own space station, they will also be used to deliver supplies and astronauts to the space station.

"Hiroko, how are the preparations for the sixth test of the 1210-ton propulsion system?"

In the engine test bench test center, Zhang Xingyang flipped through the test reports of the previous propulsion system tests.

A few days ago, because he had to personally watch Changsanyi launch two "Iridium" satellites, Zhang Xingyang stayed at the launch base.

Today, the 1,210-ton propulsion system was tested for the sixth time, and Zhang Xingyang had just rushed back to the rocket engine test center from the launch base.

The results of the previous experiments are not particularly clear, and it is only possible to quickly review the previous test reports to increase the understanding of the latest design of the propulsion system.

Each test report is hundreds of pages, and there are all kinds of complex formulas and parameters, and the average person can read a report in a week, which is considered a good head.

Zhang Xingyang read the five test reports, and it took less than half an hour in total, and the average reading time for each report was less than six minutes.

Almost at the speed of a book that seems to outsiders, I read the entire experiment report.

"The results of the last experiment were actually quite good, but there are still some problems with the synergy between the various engines."

"This time, we have made changes to the linkage of the various lines of the propulsion system, and we hope that they will be able to create better synergies."