The military-industrial scientific research system of the academic master.

Even with the help of the ultra-high-speed wind tunnel, the process of accumulating data is still boring and long.

As the most advanced masterpiece in the field of human aerodynamics, JF14 may feel fresh when you first come into contact with it.

But Chang Haonan had already operated the more advanced JF22 wind tunnel in his previous life. From the beginning, the sweet girl in other people's eyes was Mrs. Niu in his eyes. Moreover, the situation inside the ultra-high-speed wind tunnel could not be seen directly, so the whole operation process was almost repeating the same process infinitely...

In comparison, the development process of rocket boosters is smoother.

Although paraffin-based solid-liquid mixed propellant is a completely new attempt for Lin Chenggang that he has never encountered before, this kind of thing is ultimately the same in essence.

What's more, the system that meets Chang Haonan's requirements is already in a solid state when not working, and most of the physical and chemical properties and performance requirements can still be based on the past experience of the Third Academy's power department, so it is not completely starting from scratch.

Therefore, after returning to the unit with the information provided by Chang Haonan, Lin Chenggang only spent about half a month to come up with some useful results...

……

Beijing, China Aerospace Science and Industry Corporation Third Academy.

"Old Shen, I have a new set of samples here. Please measure the combustion energy, the decay rate, and the combustion process for me, especially the optical conditions of the ignition process."

Lin Chenggang walked into the testing center, carefully placed a sample box in his hand on the table, and spoke to Shen Ruiqi, the director of the testing center who was busy in front of the laboratory bench.

After a brief pause, he added:

"You have to jump the queue."

After hearing these four words, Shen Ruiqi, who had originally had no reaction, finally raised her head and glanced at Lin Chenggang.

Or to be more precise, he took a look at what Lin Cheng had just placed on the table.

The transparent plastic box is divided into dozens of small compartments, each containing a sample.

Obviously, this is a task of no small magnitude.

He sighed and said in a helpless tone:

"Cut in line, cut in line... Everyone says their project is the most urgent, but I only have a few sets of equipment, so there has to be a first come first served basis..."

Although he was complaining, he was not slow in his movements. He swiftly pulled out a pair of rubber gloves from the side and put them on his hands.

It's just talk to say that you're in a hurry for other people's projects.

Lin Chenggang’s project truly has the highest priority.

Leaders at all three levels, including ministry leaders, group leaders, and institute leaders, have specifically emphasized that all resources must be concentrated to ensure the progress of research related to hypersonic weapons.

If work is delayed, the responsibility will be directly placed on the individual.

No one can afford to be in trouble for this.

As an old employee of the Third Hospital, Lin Chenggang also knew Director Shen's temper and said half-jokingly:

"After this project is completed, I will definitely treat you, Old Shen, and your colleagues from the testing center to a meal at the Jingcheng Hotel. I will pay for it myself."

Due to its extensive business and fruitful export achievements, the salary offered by the Third Hospital is upper-middle compared with its peers.

But even so, if you have to pay out of your own pocket to treat more than a dozen people to a meal at Beijing Hotel, your wallet will definitely bleed a lot.

Shen Ruiqi happened to be standing opposite Lin Chenggang at this moment. After hearing this promise, she couldn't help but roll her eyes:

"When your project is completed... I'm afraid it will take ten or eight years. How can I wait for this meal before I retire?"

He is not a member of the hypersonic missile research and development team, but after all, the entire Third Academy is involved in a lot of work, so he has heard something about the situation of this project.

In fact, the fastest air-breathing powered aircraft that China has mass-produced before is the J-2.4C with a maximum speed of Mach 8.

Subsequent developments, including a series of domestically produced sub-combustion ramjet-powered cruise missiles, have not been able to break this number.

And this step is to directly jump to the level of Mach 9-10.

It is exciting, but just think about how difficult it is.

Lin Chenggang didn't think so much just now, but after hearing Shen Ruiqi's words, he came to his senses.

Just in the opposite direction.

He has witnessed Mr. Chang's level with his own eyes. At the current pace, he may have to fulfill his promise in a few years.

But the words were already said, and it was difficult to take them back, so I just laughed it off:

"It's okay. Even if you retire, it won't prevent us from treating you... Besides, with your qualifications, Old Shen, you will definitely be rehired after you retire."

The two of them kept talking to each other, but they didn't delay the work at hand.

Shen Ruiqi had already called two young testers from the back and at the same time pulled a form from the side and handed it to them:

"Remember to fill out the form... Can I just use the flat flame burner?"

"Correct."

Lin Chenggang said as he filled out the form:

"We are currently only conducting preliminary tests on this system to verify the basic performance and usability of the matching scheme..."

This answer made Shen Ruiqi stunned:

"A new system?"

As he spoke, he picked up the sample box with both hands, brought it closer and examined it carefully for a moment:

"I don't think I've seen this before... How come solid propellant is in this gel form?"

They were all from the same unit, and they needed someone to do the analysis and testing anyway, so there was no need for Lin Chenggang to hide it:

"A portion of lithium aluminum hydride and styrene-based thermoplastic elastomer, as well as ammonium perchlorate and ..."

Shen Ruiqi was so frightened that she almost threw the box away when she was halfway through her words:

"You just brought it here like this?"

Due to excessive shock and fear, even his voice was distorted.

When extremely active strong reducing agents and strong oxidizing agents are mixed together, even the slightest static electricity can cause a violent reaction.

Even if the propellant was not explosive, it might not be able to blow up the entire test center, but the two people closest to it would most likely not be able to escape.

"Each component and the entire system is passivated to meet the specified requirements..."

Lin Chenggang finished filling out the last item on the form as he spoke, and signed his name at the bottom in a casual manner:

This work is organized and uploaded by Liujiu Book Bar~~

"I'm not a novice. I won't joke about safety issues."

Shen Ruiqi finally breathed a sigh of relief, but still carefully handed the box and the test form to the young assistant behind him:

"Those who drowned were all good swimmers. You won't go wrong if you're more careful..."

……

The several basic performance tests requested by Lin Chenggang were not complicated and were basically part of the daily work of the power department, so Shen Ruiqi did not have to do them personally.

All the staff on duty at the testing center were mobilized and worked non-stop for two days and two nights, finally completing the testing of all 48 sets of samples on the afternoon of the third day.

When Shen Ruiqi found Lin Chenggang again, he looked so haggard that he seemed to be ten years older than a few days ago.

However, the spirit seemed extremely excited:

"Lao Lin, your new system is simply amazing..."

He slapped a thick test report on Lin Chenggang's desk and paced back and forth in the office excitedly:

"The regression rate of the twelve groups of coarse-crystalline wax samples increased by 157% to 216% compared to HTPB, and the other twelve groups of microcrystalline wax samples also increased by 78% to 174%. Moreover, the group with the fastest regression rate had a total released energy of more than 6200 J/g..."

"As long as you nod, I will immediately send the results to the Sixth Hospital. I think their eyes will be wide open..."

"After all these years, I have finally made a comeback..."

"By the way, does this new system have a name?"

"..."

There are tens of thousands of numbers in the entire report, and Lin Chenggang is not a computer, so it is impossible for him to remember all the results.

But these most important things are enough.

The biggest problem with traditional solid propellants is that the fuel's recession rate is insufficient.

However, this slightly strange new system almost perfectly solves this biggest pain point.

And in terms of safety and storage stability, it is not much behind common systems such as HTPB.

Compared with the three-fold degradation rate, this is a completely acceptable price.

Lin Chenggang had anticipated this result, so he just looked at the ecstatic Shen Ruiqi calmly:

"Ahem - strictly speaking, this should be considered the system first proposed by Academician Chang of the Aviation Power Group. I just implemented it using the existing resources..."

The latter stopped in his tracks, his face full of surprise.

Before Shen Ruiqi could speak again, Lin Chenggang continued:

"It is tentatively named the CT (super-propellant) series propellant, and the first application model should be called CT-1."

"Also, there is no need to notify the Sixth Academy for the time being... Although Academician Chang will not have any objections, it is currently certain that the creep property of paraffin-based grains is not very good, especially under relatively high temperatures. The overall structure of the grain can only be supported by the wall surface, and it is difficult to use it in super-large solid rocket engines with a diameter of more than 850mm."

Hearing this result, Shen Ruiqi couldn't help but reveal an expression of regret.

The Sixth Institute is currently focusing on large ones with a volume of more than 1 meter. If the situation of this CT series propellant is as Lin Chenggang said, it will not be of much help to them and it is likely to be a false alarm.

However, the feeling of regret only lasted for a moment.

"If it is suitable for small-sized solid rocket engines, there is a suitable project right now, and I can do some verification for you..."