Chapter 760 Good News, Bad News
The Chinese New Year is a great time, especially since Lou Xiaoe is pregnant with a child, but after the New Year is over, work still needs to be done.
There was good news at the beginning of the new year. He received a confidential encrypted email from Su Weihua.
“...After improving the data refresh rate of the altimeter, the problem of sea skimming and missing missiles of solid anti-ship missiles has been solved. The missile-borne radar has been improved through pulse compression and offset parabolic antenna, and its side lobe performance and target positioning capabilities have been greatly improved... …”
"...After the test firing of three full-range telemetry missiles, it was proved that although these improvements are low-cost, they are effective. The three rounds successfully flew to the end of the short distance and successfully locked the target ship in the final stage..."
"We, Mr. Li, would like to express our deepest gratitude to you. We are now conducting the final joint debugging of the missile's warhead, fire control, and guidance systems, striving to conduct land/sea-launched live-fire tests as soon as possible. At the same time, we are studying how to fully utilize the performance of C6108. Use it to further improve the missile's autonomy, maintainability and anti-jamming performance..."
Su Weihua and his colleagues improved their solid anti-ship missiles very quickly, and the reason was obvious. The suggestions and technologies provided by Gao Zhendong at that time were all aimed at the cheapest and most convenient ones, and they tried to keep the original hardware structure unchanged, even if they changed it. The antennas were very carefully changed from upright paraboloids to offset paraboloids, rounding off means that they have not changed.
This can be said to be very considerate. For Su Weihua and the others, it didn't take much effort, especially since someone had already taken the lead in pulse compression, so it was easy and quick to get the job done.
Facts have proved that the effect is very significant, and they have successfully completed three full-range telemetry bomb tests.
Reading this letter, Gao Zhendong was in a happy mood.
It can be said that with this thing and the related platforms under development, no one in the surrounding seas will be afraid except for Citigroup. Even Citigroup can drink a pot if the system is in place.
However, the imminent 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 people busy in the desert. After the two bombs were successful, the first thing to be solved was to combine the two bombs.
"After our preliminary calculations, even if the 591 high-temperature alloy with the best high-temperature performance in China is used, the aerodynamic heating of the warhead during re-entry will have a serious impact on the warhead."
One comrade reports 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 loss. Secondly, high-temperature alloys are inherently good conductors of heat, and they can be transmitted no matter how thick they are."
"In this case, use 591 as the base, add an asbestos insulation layer inside and outside, and add a graphite surface layer to the outermost layer."
"The high temperature resistance of graphite is fine, but will it be burned?"
"It's a disposable thing. Just burn it. The worst thing you can do is make it a little thicker. In any case, the weight of graphite is much lighter than 591."
"Haha, I forgot about this. If this is the case, the material we use for the throat lining of the rocket engine should be used. That material can work under high temperature and high pressure gas for tens of seconds. It should be used for the reentry stage. Enough. The warhead has a large reentry angle, a short residence time in the thermal barrier zone, and a high reentry speed. As long as the thickness is appropriate, 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-proof materials for us."
"Okay, if that's the case, there won't be many obstacles standing in the way of the combination of the two bombs."
Several people agreed to work separately.
——
The Snow City Test Center is still covered in white snow at this time. Lin Lianwei, a classmate Gao Zhendong remembered some time ago, is shivering from the cold here.
Just like Su Weihua went to the beach, they also came here for target practice. After all, it seems a bit contrary to test surface-to-air missiles in the capital. Besides, the experimental conditions and equipment at the Syracuse Test Center are much better than those in the capital. .
Compared with Su Weihua, Lin Lianwei's pace is faster. He is now the person in charge of the portable air defense missile guidance system. Although this missile is cute and small, except for the individual anti-tank missile which is almost the same magnitude as it, there is no other missile that can compare with it. It's a smaller missile, but it's still a missile.
At this time, portable anti-aircraft missiles have basically taken shape. Most portable anti-aircraft missiles look similar. They are weapons with very distinctive characteristics. If you have to say something different, they are probably in the shape of the sight and cooling cylinder. , the firing device may be slightly different.
The missile test was conducted outdoors, so it was extremely cold.
While watching the soldiers participating in the test prepare, Lin Lianwei joked shiveringly: "The weather is nice, we don't need to open the cooling cylinder, and we can save some test funds, hahaha."
Other comrades also laughed at his enjoyment of hardship, and there was nothing wrong with that.
The missile launch preparation speed is very fast. This is a portable missile. If it is complicated to use, it will be a day lily. At close range, enemy planes come and go quickly, and the attack window is relatively limited. Of course, if you are flying a helicopter, , you can be more leisurely, that thing runs a little slower than the F1 cars of later generations.
The soldier picked up the launch tube, then picked up a separate aiming launcher, and buckled it on the tenons of the projectile. These tenons are both fixings and wires. The current after the trigger is pulled passes through these tenons. transmitted to the missile engine.
It is Gao Zhendong's suggestion to use separate aiming launchers and then combine them during launch. 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. It’s a lot. It’s not the time to have deep pockets yet, so just reuse it if you can.
On both sides of the valley in the distance, two high towers are assumed. A set of steel cables are connected between the high towers. An infrared target is hung on the steel cables and can be pulled at a certain speed. When we first started testing, we couldn’t use a helicopter to pull a target in the sky. Who knows if the missile would aim at the target or the helicopter when it flew out? As for the drone... Haha, let’s not talk about whether that thing exists or not. Just whether it is expensive or not, it is not something that can be used in the first test.
The soldier wore goggles, carried the missile on his shoulder, and conducted a final inspection: "Report, preparation for launch is complete."
Lin Lianwei was the youngest, so this errand in the cold wind was left to him. The other comrades were in the shelter to observe the progress of the experiment.
Lin Lianwei picked up the walkie-talkie, and after walking some distance away from the test soldier, he ordered into the walkie-talkie: "Prepare... to shoot the target!"
Different from solid anti-ship missiles, they do not use telemetry bombs for this kind of missiles that are several kilometers long. Firstly, it is not necessary. Secondly, the missile body is too small, and the warhead is completely cut out, and the telemetry equipment cannot be placed. So they might as well Go straight up.
At the far end of the tower, the target on the steel cable moved quickly, and the soldiers had a test launch window of about 30 seconds.
The soldier in the experiment placed the target firmly in the sight frame of the optical sight and turned on the cooling switch at the same time.
Lin Lianwei was obviously joking when he said to save cooling gas. The cooling gas bottle of this thing can be reused during the trial stage, and it actually doesn't cost much.
As the target moves, the missile launch tube is also rotating slightly. At this time, the missile seeker is already scanning and locking the target.
Not long after, the missile's launcher beeped, indicating that the seeker had locked onto the target.
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The shooter breathed steadily and gently pulled the trigger. With a "swish" sound, the missile flew out with a puff of smoke, but unlike the propellant used in rockets, the smoke was not too big. Considering the impact after launch, For safety reasons, portable anti-aircraft missiles use propellants with as low a smoke characteristic as possible.
Lin Lianwei looked excited as he watched the missile fly towards the target.
"Oops!" Lin Lianwei, who was observing the flight of the missile, suddenly exclaimed.
The missile flew less than halfway, drawing several irregular circles in the air, and finally fell to the ground during this irregular flight. Although a fragmentation warhead was installed, it did not explode.
This scene confused the soldier responsible for the launch. He was very embarrassed and thought it was his mistake.
Lin Lianwei comforted him: "It has nothing to do with you, don't think too much." Then he ran towards the shelter. Other comrades who were developing missiles were there, and he had to go over to discuss it.
Lin Lianwei panted and ran into the shelter not far away, 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 stared at it, and there was no problem at all. I heard the locking sound very clearly, and the launch timing after locking was also very well grasped." Lin Lianwei said.
"Let's go over and pick up the missile and take 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 it hasn't exploded yet. It may explode at any time now." He was stopped by others desperately.
"What should we do? If we don't pick up the missile body, how can we analyze the problem?"
Lin Lianwei is responsible for the guidance system, but not the flight control, but Lin Lianwei can't care so much: "Boss, I'll go! I'm young, the loss is small!"
He didn't say what the loss was, but the meaning was obvious.
"No! Stop!" This time the boss quit.
After arguing for a long time, the boss decided: "Let's try firing two more rounds!" Originally, today's test process was to prepare to fire three rounds to see the situation.
This suggestion has been approved by everyone. As long as people don't lean towards duds, everything will be easy to talk about.
Lin Lianwei turned around and walked out. Soon, the firing test of the two rounds was completed.
After three bullets were fired, the result was very unsatisfactory.
(End of chapter)