Although efforts have been made to improve the range of the 300mm rockets originally produced by the Second Machinery Factory in Western Henan, there is still no way to make the range of the rockets exceed 100 kilometers.
It is completely incomparable to the ultra-long-range rockets produced by Longguo later with a range of more than 400 kilometers.
But at this time, the range of sixty-five kilometers is considered good.
The solid rocket motor used in the 300mm rocket produced by the Second Machinery Factory in Western Henan was not considered advanced even at this point in the 1990s.
Therefore, the restarted six-pack 300mm rocket uses the latest model of solid rocket motor produced by Factory 112.
The fuel in the solid engine is the all-nitrogen propellant that has just been developed!
The total nitrogen propellant of the same mass can generate thirty times as much heat as undimethylhydrazine!
That is to say, if the thermal efficiency problem between the two is not considered, then the thrust of the rocket with the same mass of propellant will be thirty times the original!
Of course, these are the results under ideal circumstances. In fact, it would be good to have a tenfold improvement in the range of the rocket.
"How is the production situation of small solid rocket motors?"
Zhang Xingyang asked Chen Chunming, who is responsible for producing the engines needed for rockets.
"Production is not as difficult as we imagined. Several units have been trial-produced, but they have not been tested yet."
Chen Chunming brought Zhang Xingyang to several completed small solid rocket motors.
The rocket engines required for rockets are much smaller than those required for space rockets.
And from the perspective of technical difficulty, the technical difficulty of small solid rocket motors is also very small.
Although it also requires multiple angle-adjustable nozzles, it does not have as complex a gas circulation system as the previously manufactured YF-100 liquid oxygen kerosene engine.
So in less than a month, Factory 112 basically figured out the technical difficulties in the new solid rocket motor.
Four small solid rocket motors were produced.
He looked at the engine in front of him that still had new metal cutting marks.
After Zhang Xingyang touched it, he looked at Chen Chunming who was standing aside:
"How are the preparations for the testing site going?"
"Everything is almost ready. The simulation test bed needed for No. 1 and No. 2 is ready."
"The area of the test site required for No. 3 and No. 4 is a bit too large. We are still coordinating with the local authorities."
Chen Chunming quickly reported on the conditions of the testing ground prepared for these four engines.
"It might not be convenient for you to coordinate. Let's put this matter aside for now and I'll find a way to solve it."
Zhang Xingyang frowned and thought for a few seconds before making a decision.
Because the actual test site area required is very large!
You must know that even if the range is only increased by five times, the new solid rocket motor can still launch the original 300 mm rocket 300 kilometers away.
Not to mention, the range improvement may actually be eight times, or even ten times!
If it can really be improved tenfold, then the test site will need to be at least 600 kilometers long!
Such a large piece of land is difficult to coordinate elsewhere except for the large weapons testing site in the northwest Gobi.
“Let’s take a look at the performance of the engine on the simulation test bed first!”
After Zhang Xingyang talked about the problem of the test site, he did not criticize Chen Chunming too much.
After all, it is normal for him to be unable to coordinate with his abilities.
As a unit that specializes in producing rocket engines for the Rocket Research Institute, Factory 112 naturally has a simple simulation test bed.
It is used for the final inspection of rocket engines before leaving the factory.
But this is only a process that occurs in rocket engines on space rockets.
When Factory 112 began producing solid fuel rocket motors specifically for rockets, it was impossible to test every rocket motor.
After all, this thing is too cheap compared to every aerospace rocket engine that costs millions.
Engineers installed two small solid fuel rocket engines on the simulation test bench, and then installed auxiliary excitation devices on the engines.
The two rocket engines on the simulation test bed burst into blue-white flames after being excited by the auxiliary excitation device!
Various detection components on the test bench began to faithfully record various data of the solid fuel rocket engine during this process.
Because of the solid rocket motor, even though it is small, the flame generated after it is started can reach seven or eight meters long!
If it weren't for the double-layer protection of thick insulated glass and bulletproof glass, it would be impossible to get close!
But even the small rocket engine didn't work for long, after less than two minutes of violent release of energy.
As the fuel decreased, the rocket engine gradually stopped working.
"It seems that the working condition is not bad." Chen Chunming said as he looked at the rocket engine that was gradually shutting down.
"We won't know until the specific data comes out."
Zhang Xingyang is not as optimistic as Chen Chunming.
Because the performance test of small solid rocket motors is relatively simple, the answers to various data can be obtained almost on the spot.
Zhang Xingyang quickly browsed through the data above at a speed that was difficult for others to understand.
In less than five minutes, Zhang Xingyang read all the data, and then spent some time calculating the results.
Zhang Xingyang concluded: "It did not achieve the best results we expected."
"However, compared to the rockets used before, the range can be increased by about 7.6 times."
"The speed has also been increased by about 60%!"
Chen Chunming was not able to understand the test report full of various data. He was still reading the second page at this time.
But he could still understand what Zhang Xingyang said.
In other words, after replacing the small solid fuel rocket motor manufactured by Factory 112, the range of the 300mm rocket will be increased from the original 65 kilometers to nearly 500 kilometers!
Although Chen Chunming knew that the new small solid rocket motor was very powerful, he was still shocked after doing some mental calculations!
You must know that missiles with a range of more than 300 kilometers are not allowed to be exported or sold internationally.
And the rocket launcher they have now developed has a range of 500 kilometers, even exceeding a lot of short-range missiles!
And it bypasses export restrictions!
In other words, this thing can be sold for a small amount of money!
And the speed has increased by 60%. You must know that the speed of today's 300mm rockets is already very fast, reaching Mach 3.6!
Increase it by another 60%, and the speed will reach about Mach 5.8!
This speed has exceeded the speed of most supersonic fighters today!
"If it is to be exported, it seems that this thing cannot be sold, right?" Chen Chunming knew the Rocket Research Institute's subsequent attitude towards this rocket launcher.
Its castrated version, that is, the version with a weakened warhead, will be sold externally.
However, its range exceeds 300 kilometers, and if it is exported, it will easily cause various criticisms.
Hearing Chen Chunming's worries, Zhang Xingyang smiled and said.
"We sell rockets with a range of 200 kilometers."
"It's just that the error is a little big."
"The error is three hundred kilometers!"
(End of chapter)
