These days there has been a certain relationship with experts from the Soviet Union to discuss the improvement of the Katyusha rocket. A few days ago, the rocket launcher was named Tiger 150, and the farthest attack distance could reach 20 kilometers, which was more than twice the range of the existing BM-13 rocket in the Soviet Union, and the caliber was also much larger, equivalent to a 150-caliber heavy artillery.

The most important thing is the improvement of attack accuracy, the accuracy improved after adding the vehicle-mounted radar positioning technology is not a little bit, speaking of this rocket is a bit similar to a missile, because after launching, you can also slightly adjust the orbit calibration accuracy.

They used Li Yunfei's knowledge, of course, Li Yunfei also used their intelligence, with the help of that group of experts, the Tiger 150 was soon officially put into production, and after three tests, the performance far exceeded expectations.

The distance accuracy of 20 kilometers can hit 50 targets, and the distance of 10 kilometers can hit 20 meters of targets, such a high-power rocket smashes down, and it is impossible for people within 20 meters to survive, even if there are fortifications, they may be shocked to death.

Of course, there is no computer aid yet, so we can only borrow radar data to manually adjust the rocket launch angle, otherwise what Li Yunfei and those Soviet experts have come up with this time is simply a single-pulse fire control radar......

When the Tiger 150 was finalized and put into production, the dozen or so groups of Soviet experts were excited, and they had to pull Li Yunfei to say that they were invited to drink flower wine, of course, it was very 'coincidental' that Xiao Tang came to report to work, so it didn't take a chance, otherwise after drinking a large amount of alcohol, he was really willing to be put to bed by a few Soviet chicks in a few bars, and the wine was really drunk.

The Soviet experts left happily, this time the task was successfully completed, and it was even said that it was overfulfilled, so it was very happy to go, Li Yunfei could be regarded as having completed his task, and he could finally go home to accompany this girl......

……

In the dead of night, everyone had already slept, but Li Yunfei was full of energy, drawing all kinds of sketches, and his movements were as fast as a painting machine. The reason why I was in such a hurry was because I took a nap for a while before, and I remembered a lot of relevant knowledge about launch vehicles, which was very detailed. Suddenly dreaming about rocket-related knowledge may have something to do with the fact that I have been discussing the Tiger 150 with Soviet experts for some time.

Although I don't know how I know such a detailed thing, but since I have dreamed of it, all kinds of detailed structures are circulating in my mind, of course, I will record the things of Zhexien first.

Tang Jieshu carefully helped sort out the drawings that had been thrown aside and had been drawn, trying not to make noise to Li Yunfei, who was concentrating on work, she understood some of the drawings he wrote, which should be something similar to rocket artillery.

However, the big one is terrifying, there are several models, the smallest one is more than 20 meters high, the largest is more than 50 meters, the smallest diameter is more than two meters, and the largest is as high as five meters. How powerful is it if you hit it?

Of course, Li Yunfei didn't know Xiao Tang's thoughts, but he kept drawing drawings, with a strong physique, and he could work almost tirelessly, until his eyes shone from the window to the window, and he finally drew everything he knew, looking at the thousands of drawings on the side, it was also quite accomplished. Although the existence of drawings does not mean that it can be made, it can certainly save a lot of time, and it can also save China's aerospace industry by 30 years......

"Thankfully, I was done, but if I hadn't, I wouldn't have enough paper in the office."

"Sister Tang has worked hard for you, let you stay up late with me."

"It's not hard, it doesn't matter if you stay up late, but do these rockets really work?" Tang Jieshu asked curiously.

"Of course it works, this is a launch vehicle, not a rocket, this thing can carry something like a bomb, a nuclear bomb, or a satellite space station or something like that, and it will be very useful in the future, don't get confused." Li Yunfei explained a little.

"The captain thinks really long-term, I'm too stupid."

"Why, if you're stupid, there aren't many smart people."

"Brother, you're finally normal, let's have breakfast first, I'll prepare your favorite porridge with preserved eggs and lean pork!" Yichun also entered the office with a few bowls of porridge, she also stayed at the headquarters last night, and she stayed up all night without sleeping, Li Yunfei painted there, Tang Jie, Shuzi, that tidying up, of course she was embarrassed to go to sleep.

"Sister Yichun, I've worked hard for you, the next time you encounter this kind of thing, you can continue to sleep, don't worry about me."

"You're working hard, your hands are tired, I'll feed you!" As he spoke, he picked up a bowl of porridge to feed.

"How can I be so pretentious, come and sit down and eat together...... By the way, Don Jr., wait a minute, you go and contact the military, and we are going to set up a rocket research institute for them to help recruit people. ”

"Okay, I'll do it!" said that Tang Jieshu was about to stand up, but was pulled by Li Yunfei.

"Don't worry, it's not too late to drink the porridge before you go, don't waste the hard work of Sister Yichun."

"Oh...... I forgot to tell you about one thing, the troops will go south next month, how many teams are we going to dispatch? ”

"Go to all the ones that can be transferred, in that Shenyang City, the devils have been in business for so many years, and they also know that we will go south to take back Shenyang, and there will definitely be many followers."

"Well, I'm done eating, go to the headquarters first, you eat slowly!" Tang Jieshu drank a big bowl of porridge in one gulp, and went directly first. Now she is basically in charge of the management of the Dragon Group, so she is busier than Li Yunfei.

"Sister Tang is really busy, brother, you should accompany her more and relieve her of some burden!"

“…… Actually, I'm also very busy, but my head is busy, you can't see it. ”

The Rocket Research Institute was established quickly, of course, the establishment of the Institute was effortless, almost within three days, and the initial establishment of less than 100 researchers, not yet professional, in fact, can not find a professional, but at this stage, it can only be used first, and then slowly recruited.

Now there are a lot of talents in Harbin, many returned overseas Chinese, students who have returned from studying abroad, and even many foreigners who have lost their families, these people have traveled to many places and finally settled in the thriving Harbin, so it is a lot easier to recruit talent components for scientific research teams.

The drawings drawn by Li Yunfei have been relatively perfect, as long as they are followed, in principle, they can really make rockets, but some special materials and some details still need to be tested in various ways, and it is still a long way to go before the rockets can really be made. Anyway, I have already written out everything I know and drawn it, as for how to do it, it depends on those people in the institute......

……

"Captain, fifteen combat teams have successfully entered Shenyang City...... After receiving the news from the front, Tang Jieshu notified Li Yunfei as soon as possible.

"I don't know how many biochemical weapons the devil has stored in the city, and how many of them will maintain normal thinking, Xiao Tang, you sit in the headquarters to command and dispatch, and I will go to Shenyang to see the situation."

“…… Be! "Although I really wanted to go with me, I still carried out the order, and the headquarters definitely needed to leave someone to command and dispatch.

"Don't worry, I'll be fine!" Seeing that the other party was a little cautious, Li Yunfei patted her shoulder and said a word, and went out directly.

The devil's regular troops can be handed over to the PLA to deal with, and at most the special combat team will be assisted on the side. The members of the dragon group mainly deal with the biochemical weapons of the devils, because the biochemical weapons are difficult to hit by ordinary soldiers' firearms, and even if they hit, they are not fatal, so the members of the dragon group who infiltrated Shenyang do not participate in normal battles, and the target is those biochemical weapons.

Although Shenyang City is very tightly defended, it is really difficult to defend for the members of the dragon group who can fly quietly, even if they have some technological breakthroughs to make an air defense radar, but the radar is easy to find aircraft, and there is really nothing that can be done to find the flyer, Li Yunfei also quietly entered Shenyang City.

Because of the large-scale troop movement in this attack, of course, the devils could not be completely concealed, so a curfew had begun in the city, and everyone had to stay at home at night and not go out, but there was no massacre, because they were also a little afraid of the revenge of the Chinese.

The reason why he dared to be unscrupulous in the past was because he was already invincible in Asia at that time, and now this invincibility can only be marked in quotation marks......

……

A black shadow skillfully walked in the shadow of the street, and it had been wandering around the entire Shenyang City for more than half an hour, and the general situation was to figure it out, but it was not impossible to find a biochemical weapon with normal thinking. So I casually entered a nearby high-rise building, and waited for dawn to see the situation after the war started.

If the devil really has biochemical weapons in the city, they will definitely be put into the battlefield, of course, there is also a possibility that when the People's Liberation Army enters the city, those biochemical weapons suddenly appear to cause major casualties and destruction.

However, more than a dozen combat teams have been lurking to the highest point, with the help of that particle weapon, you can easily control a large area, if you find that a biochemical weapon appears, of course, you can strike it as soon as possible, unless it is the kind of biochemical weapon that still retains the ability to think......

Dawn was coming, and the attack at the scheduled time was about to begin, but Li Yunfei was leaning on the bench, thinking about his future plans. The current nuclear program is going well, and in principle, it can be manufactured in another six months.

Moreover, the nuclear bomb made will be much more advanced than the atomic bomb made by the United States in history, and if the first-generation rocket is successfully produced and the test flight is successful, the nuclear bomb can even be directly mounted on the rocket and launched......

Suddenly, on the opposite side of the street, a ghostly figure appeared, and quickly climbed into a window, but Li Yunfei was stunned for a moment, and immediately flew out and rushed to the opposite window......