Chapter 760 Good News, Bad News

The New Year was a great experience, especially since Lou Xiaoe was pregnant, but work still had to be done after the New Year.

There was good news at the beginning of the year. He received a confidential encrypted email from Su Weihua.

"…After improving the data refresh rate of the altimeter, the problem of sea-skimming drop of solid anti-ship missiles has been solved. The missile-borne radar has been improved through pulse compression and offset parabolic antenna, and the sidelobe performance and target positioning capability have been greatly improved…"

"…After the test firing of three full-range telemetry missiles, it was proved that these improvements are inexpensive but effective. All three full-range short missiles flew smoothly throughout the entire journey and successfully locked onto the target ship in the final stage…"

"Our General Manager Li would like to express our deepest gratitude to you. We are now conducting the final joint adjustment of the missile's warhead, fire control, and guidance systems, and strive to conduct live-fire tests for land/sea launches as soon as possible. At the same time, we are studying how to make full use of the performance of the C6108 to further improve the missile's autonomy, maintainability, and anti-interference performance..."

Su Weihua and his team's solid anti-ship missiles improved very quickly, and the reason was very obvious. The suggestions and technologies provided by Gao Zhendong at the time were all aimed at the cheapest, most convenient, and keeping the original hardware structure unchanged as much as possible. Even the change of the antenna was done very carefully from a normal parabola to an offset parabola, which was equivalent to no change if rounded off.

This can be said to be very considerate. For Su Weihua and others, it does not take too much effort, especially since someone has already taken the lead in pulse compression, it is easy and quick to get the job done.

It has been proven that the effect is very significant, and they have successfully completed three full-range telemetry missile tests.

Looking at the letter, Gao Zhendong was in a good mood.

It can be said that with this thing, plus the related platforms that are being developed, no one in the surrounding seas will be afraid except the Citigroups. Even the Citigroups can be in trouble if the system is properly established.

However, the most urgent matter is not this. Fortunately, Gao Zhendong has made a lot of preparations for that matter, and the results are gradually showing.

At this time, there were also people busy in the desert. After the success of the two bombs, the first thing to be solved was to combine the two bombs.

"After preliminary calculations, we found that even if we use the 591 high-temperature alloy with the best high-temperature performance in China, the aerodynamic heating of the warhead during reentry will have a serious impact on the warhead."

One comrade reported to another.

“How about adding thickness?”

"It doesn't make much sense. First, it will greatly increase the weight of the warhead, which is not worth the cost. Second, high-temperature alloys are good conductors of heat. No matter how thick it is, it can still conduct heat."

"Then, we use 591 as the base, add asbestos insulation layers inside and outside, and then add a graphite surface layer on the outermost layer."

"Graphite is resistant to high temperatures, but it will burn, right?"

"It's a disposable item anyway, so just burn it. At worst, make it thicker. Anyway, graphite is much lighter than 591."

"Haha, I forgot about that. If that's the case, the material we use for rocket engine throat linings should be useful. That material can work for tens of seconds under high-temperature and high-pressure gas, which should be enough for the reentry stage. The warhead reenters at a large angle, stays in the thermal barrier zone for a short time, and has a high reentry speed. As long as the thickness is appropriate, I think there should be no problem."

"Well, calculate it carefully. If there is no problem, contact the Northeast Carbon Research Institute and ask them to customize a batch of bullet tip heat protection materials for us."

"Okay, if that's the case, then there won't be many obstacles standing in the way of combining the two bombs."

Several people agreed to work separately.
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The Snow City Experimental Center was still covered with snow at this time. Lin Lianwei, a classmate that Gao Zhendong had thought of some time ago, was shivering with cold here.

Just like Su Weihua went to the beach, they came here for target shooting tests. After all, it seemed a bit incongruous to test surface-to-air missiles in Beijing. Besides, the experimental conditions and equipment at the Snow City Test Center were much better than those in Beijing.

Compared with Su Weihua, Lin Lianwei's steps are faster. He is now the person in charge of the portable air defense missile guidance system. Although this missile is cutely small, there is no smaller missile than it except for individual anti-tank missiles which are about the same order of magnitude as it, but it is still a missile.

At this time, the portable air defense missiles have basically taken shape. Most of them look similar and are weapons with very distinct personality characteristics. If we have to say the differences, it is probably that the sights, the shape of the cooling gas cylinders, and the firing devices may be slightly different.

The missile test was conducted outdoors, so it was extremely cold.

While watching the soldiers preparing for the test, Lin Lianwei joked, "The weather is nice. We don't even need to use the cooling gas cylinders. This can also save some test expenses. Hahaha."

The other comrades also laughed at his attempt to find joy in the midst of adversity, and there was nothing wrong with what he said.

The missile launch preparation speed is very fast. This is originally a portable missile. If it is complicated to use, it will be useless. At close range, enemy planes come and go quickly, and the attack window is relatively limited. Of course, if you want to attack a helicopter, you can be more leisurely, as that thing runs slower than the F1 car of later generations.

The soldier picked up the launch tube, then picked up a separate aiming and launching device, and buckled it onto the tenons of the missile body. These tenons are both fixings and wires. The current after the trigger is pulled is transmitted to the missile engine through these tenons.

Gao Zhendong suggested using a separate aiming and launching device, which can be combined during firing. The range of this thing is much longer than that of a disposable rocket launcher. Although it also uses an optical sight, its precision and cost are much higher than that of a disposable rocket launcher. We are not rich enough yet, so we might as well reuse it if possible.

On both sides of the distant valley, two high towers were assumed, connected by a set of steel cables, and an infrared target was hung on the cables, which could be pulled at a certain speed. At the beginning of the test, you can't use a helicopter to pull a target in the sky. Who knows if the missile will aim at the target or the helicopter? As for drones... Haha, let's not talk about whether they exist or not. Just the price is not enough for the first test.

The soldier put on goggles, carried the missile on his shoulder, and made a final check: "Report, launch preparation is complete."

Lin Lianwei was the youngest, so this mission in the cold wind was given to him. The other comrades were in the shelter, observing the progress of the experiment.

Lin Lianwei picked up the walkie-talkie, walked away from the test soldier, and ordered into the walkie-talkie: "Ready...shoot!"

Unlike solid anti-ship missiles, they did not develop telemetry missiles for this type of missile with a range of several kilometers. Firstly, there was no need, and secondly, the missile body was too small. Even if the warhead was removed completely, there would not be enough space for the telemetry equipment, so they might as well just use it directly.

At one end of the distant tower, the target on the steel cable moved rapidly, and the soldiers had about 30 seconds to conduct a test launch.

The soldier conducting the test placed the target firmly in the aiming frame of the optical sight and turned on the cooling switch at the same time.

Lin Lianwei was obviously joking when he said that the cooling gas could be saved. The cooling gas cylinder of this thing can be reused during the test phase, and it actually doesn't cost much money.

As the target moves, the missile launch tube also rotates slightly. At this time, the missile seeker has begun to scan and lock the target.

Not long after, the missile's launch device made a "beep, beep" sound, indicating that the seeker had locked onto the target.

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The shooter breathed steadily and gently pulled the trigger. With a "whoosh", the missile flew out with a puff of smoke. However, unlike the propellant used in rockets, this smoke was not too large. Considering the safety issues after launch, portable air defense missiles use propellants with smoke characteristics as low as possible.

Lin Lianwei looked excited as he watched the missile fly towards the target.

"Oh!" Lin Lianwei, who was observing the flight of the missile, suddenly exclaimed.

The missile flew less than halfway, drew several irregular circles in the air, and finally fell to the ground during this irregular flight. Although it was equipped with a fragmentation warhead, it did not explode.

This scene confused the soldier in charge of the launch. He felt very embarrassed and thought it was his own mistake.

Lin Lianwei comforted him, "It has nothing to do with you, don't think too much." Then he ran to the shelter. Other comrades who were developing missiles were there, and he had to go over to discuss it.

Lin Lianwei ran breathlessly into the nearby shelter, where several comrades were already waiting for him.

"Why did the bullet drop?"

"I don't know, is there any problem with the launch procedure?"

"I was watching it, there was no problem at all. I heard the locking sound very clearly, and the timing of the launch after locking was also grasped very well." Lin Lianwei said.

"Let's go pick up the missile and have a look." The person in charge of the model was about to walk out.

"Boss, no, it's too dangerous! The missile is loaded with live ammunition and hasn't exploded yet. It may explode at any time." He was desperately stopped by others.

"What should we do? How can we analyze the problem if we don't retrieve the projectile?"

Lin Lianwei was in charge of the guidance system, but not the flight control. However, Lin Lianwei could not care less: "Boss, I'll go! I'm young and the loss will be small!"

He didn't say what the loss was, but his meaning was very clear.

"No! Stop right there!" This time it was the boss' turn to refuse to do it.

After a long discussion, the boss decided: "Well, let's try firing two more rounds!" The original test procedure for today was to fire three rounds to see the situation.

This suggestion was recognized by everyone. As long as people don't go near the dud, everything will be fine.

Lin Lianwei turned around and walked out, and soon the firing test of two bullets was completed.

After firing three rounds, the results were very not optimistic.

(End of this chapter)