Chapter 1335: Good News and Bad News

Just when Lin Chenggang's brain was working fast and he wanted to say something to save the situation, a voice from outside the car door saved the atmosphere that was about to burst.

"Engineer Liu, Researcher Lin, the data analysis team has some new results!"

The voice was a little unfamiliar to Lin Chenggang, and it was definitely not the people in the three cars that had just picked him up.

Liu Xiyun, who was sitting further inside, turned around with a look of astonishment:

"So fast?"

According to experience, this kind of work that requires disassembling the missile body and analyzing the test results throughout the process generally takes at least 5-7 days to complete.

And this time, it took about 50 minutes...

"Well... the situation is a bit special."

The man held the tailgate and stood outside to explain:

"I'm not a missile professional, you should go over and take a look..."

The interior space of the command vehicle is quite cramped, and several crew members are lined up vertically. If you don't consider the top hatch that requires pull-ups to pass through, you must leave the cabin in order from the outside to the inside.

Lin Chenggang and Liu Xiyun took a lot of effort to stand under the scorching sun near noon.

The latter took the initiative to introduce the person who had been talking outside just now:

"This is Engineer Yu Zhefeng from the Electronic Technology Group. He was originally responsible for the radar equipment of the integrated missile and artillery system..."

Originally, this kind of indirect work contact was just a matter of recognizing a familiar face, but the word "originally" in the other party's mouth still made Lin Chenggang a little curious.

It's just that the situation on the missile side is obviously more urgent, so he didn't ask specifically.

However, Yu Zhefeng took the initiative to take over the conversation:

"Now I'm doing a lot of things, and I'm in charge of everything..."

Lin Chenggang nodded in understanding.

This situation is not uncommon in the process of model development.

If the development of a subsystem is particularly smooth and the progress is obviously faster than the overall, then the relevant personnel will often do some auxiliary work within their capacity.

But Liu Xiyun explained on the side:

"Actually, Engineer Yu is currently in charge of the development and cooperation of various radar equipment of the Army Air Defense System..."

"..."

Lin Chenggang was speechless for a while.

Damn, I got tricked this time.jpg

While greeting each other, they quickly came to an area surrounded by sandbags and earth walls a few hundred meters away.

Due to strict cost restrictions and relatively harsh working environment, it is not uncommon for the army's firepower weapons to fail to explode or even ignite. Therefore, the Qingtongxia shooting range has set up such an area to deal with similar situations.

Of course, as of today, the CT series propellant is an insensitive fuel, which is relatively stable when it is not ignited, and the CTK series requires a special electrode to provide voltage to ignite, so it is very safe.

When the three people walked into the detection area, the unexploded bomb had been disassembled into eight pieces and placed on several tables according to different subsystems.

At first glance, Lin Chenggang saw the largest propulsion section among them-

The solid rocket engine is a relatively integral structure, which is difficult to be disassembled into the state before production.

In addition, there were already a dozen technicians dressed in different clothes around.

He walked up quickly and briefly stated his identity.

The other party did not lay too much groundwork, but directly turned the cylindrical power section in the direction, so that the circular cross-section was aimed at Lin Chenggang.

The other party did not need to say much, the latter had already seen the problem.

"The charge column cracked?"

Lin Chenggang never expected that the final cause of the combustion interruption was such a relatively simple reason.

Then there is really no need to do other analysis.

This is the most direct reason.

"Yeah."

The leading technical officer with the rank of colonel replied:

"It's not obvious from this point of view. We just used a probe to observe the internal morphology in depth. The result is..."

He said that he brought a laptop from the side, on which was a photo that was a little overexposed due to uneven lighting.

But after a closer look, it can still be recognized that this is an expanded image of the inside of a ring-shaped charge column.

In the central part, there are three dark shadows across the entire image.

In other words, the entire charge column was divided into four sections like a baguette cut with a knife.

It can only be said that it would be unfair not to turn off the fire.

"But it doesn't make sense..."

Looking at the hideous image in front of him, Lin Chenggang's face was full of confusion.

The matrix of CTK-2 propellant is based on CT-1 with electrically sensitive hydroxylamine nitrate and metal tungsten powder. In order to avoid the strength risk of this rather special combination, he also specially added three-dimensional porous polyvinyl alcohol as a binder, and conducted multiple tests before formal loading.

It is said that there should be no physical fracture.

In addition, whether it is combustion pressure or external overload, the test of 0 target distance.8km is not the highest. Even if there is a problem, it seems that it should not be here.

So the root cause is probably the secondary power-up that I just discovered.

No mistake, one song, one post, one content, one 6, one 9, one book, one bar, take a look!

But what is the connection between the two, for the time being, is still in the dark.

Although he is engaged in solid rocket propulsion, he is not a chemistry major. It is feasible to be responsible for engineering research and development, but he is somewhat unable to do more in-depth parts.

After a long silence, he put down the laptop in his hand and turned to look at Liu Xiyun who was following behind him:

"There should be some spare ammunition, right?"

The latter nodded:

"There are still 8 rounds."

"Can we conduct a set of repeated tests in the afternoon?"

Liu Xiyun thought for a while:

"The afternoon schedule is to test the Haihongqi 10. If everything goes well, there should be time after dinner..."

...

What no one expected was that although the fault was reproduced in the second round of tests that night, the problem occurred when hitting a target 15km away.

A missile failed to ignite the second time when it was flying normally to the end, suddenly lost power, and finally missed the target.

Faced with this result, Lin Chenggang seemed to be in a dilemma.

On the one hand, this shows that his speculation about the root cause of the problem was correct, that is, during the secondary power-on process, due to some factors, the propellant grain cracked and eventually stopped working abnormally.

But on the other hand, it also shows that the occurrence of this fault is quite random.

Although the 5/6 hit rate is not unacceptable on the surface, a technical risk that has not even been figured out can not be ignored like this -

If the next time there is a problem during the primary ignition instead of the secondary ignition, then the missile ejected by the cold launch tube will directly hit the launch vehicle.

No matter how insensitive the propellant and warhead are, it is impossible to be safe in this situation.

Fortunately, the more traditional CT-1 propellant did not have this situation. Since the test began last week, a total of 39 missiles of various types have all hit, which makes Lin Chenggang feel somewhat relieved.

"Forget it..."

Looking at the characteristic data in the control system that is almost the same as that in the daytime, he sighed helplessly:

"All tests involving CTK-2 propellant are suspended. I will go back to Beijing first and try to find out the problem as soon as possible..."

Faced with this clueless situation, Lin Chenggang had to choose to give up the mystery and submit his ideas about the electronically controlled solid propellant and the situation encountered in the test to the management team of the hypersonic weapon project through a report, hoping to get some support.

Then...

"Comrade Lin Chenggang, I have good news and bad news."

In the office, Chang Haonan said to Lin Chenggang with a complicated expression.

Then, without waiting for the other party to make a choice, he continued:

"The good news is that the Torch Laboratory probably has some ideas about the problem you encountered. It is likely that there is a problem with the electrical sensitivity of a certain component in the propellant. A specific conclusion should be given in a relatively short time."

The latter looked happy, but then remembered that there was bad news:

"Then..."

"The bad news is that because the development plan has changed, our air-breathing hypersonic weapon... may no longer need a particularly powerful rocket booster."