Thank you Tianhai Xiangyun for your great reward.

There are a lot of things these days, so it's always been a single update, but Hulu promises that as long as things are done, they will definitely compensate for the updates they owe!

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"It's our factory in front. Leader, please prepare a letter of introduction and your work card...... "The factory buildings of Yunguang Factory are all brick and concrete structures, and compared with Soviet-style factories, they are less domineering and heavy, giving people a very depressing feeling.

Seeing the dilapidated factory building that greeted him, Liu Yijiu really couldn't imagine that this factory had built an active infrared night vision device and a complete machine industrialization base in the sixties, creating a precedent for night vision instruments in China.

After handing over the documents and letters of introduction to the armed inspection for registration, the jeep entered the factory through the iron railing gate.

Because the factory area was built before the liberation, even after the founding of the People's Republic of China, it was expanded, because it was not well planned, and the road in the factory area seemed narrow.

Wang Xinyue took a few people to an old-fashioned three-story building with a blue brick structure, and led them into the office of the Liaison Office, where a chubby old man wearing a white-washed Zhongshan suit was frowning and reading the documents in his hand.

"Director, I brought back the comrades from Base 002......" Wang Xinyue said to the old man.

"Comrades, hard work. After receiving the notice from our superiors, we are looking forward to your arrival......" The old man showed great enthusiasm when he saw Liu Yijiu and Chen Dashan, "My name is Xiao Siwei, the director of the External Relations Department of Factory 298. Responsible for receiving you ......"

For the 298 factory, several people do not know very well, and several people do not know what the organizational structure of this factory is.

"Director Xiao, we are here this time for technical matters. I hope to be able to get technical support from brother units......" Liu Yijiu said very puzzled.

Outreach Office, can manage the technical things?

"No problem, our outreach office is different from the outreach office of other factories. We are responsible for everything we do with the outside world, including technology. Even the construction of brother factories is also our business, your intentions, the superior leaders have told us, and our technicians are looking forward to it. Since the early 60s, when we developed production technologies such as active night vision components, there have been no technological breakthroughs...... "Xiao Siwei showed a very high level of enthusiasm.

"This ......" Liu Yijiu was very worried, whether the guy in front of him really understood technology.

In previous years, all research work was basically at a standstill, only a few projects such as nuclear submarines, intercontinental missiles, and large aircraft launched in the early seventies were struggling to move forward, and the rest of the factories were basically like that.

"No problem, Master Liu, let's not be in a hurry to rest first, put forward the technical requirements to them, what's the problem, let's figure it out together, and then hurry back, what do you say?" Chen Dashan wished he could get his hands on a sniper rifle right now.

Along the way, I listened to Liu Yijiu tell him about the benefits of this sniper rifle and the use of sniper rifles in the Great Patriotic War of the Soviet Union, the Korean War and the Vietnam War, and of course, the invasion of Afghanistan by Lao Maozi, in the absence of a large-scale war, snipers have become the main force to perform many important tactical tasks.

Other countries have been developing in this area for decades, but China has not yet started, so he can't help but be in a hurry!

Liu Yijiu has no objection to this.

Sniper rifle, this is the first pass to prove his ability. Only when he proves his ability can some of the designs he proposes in the base be adopted. He is still very confident in this sniper rifle. As long as there are no problems with the scope.

"Ladies and gentlemen, I believe everyone knows the confidentiality code, we are from the Ninth Institute of Machinery under the Fifth Machinery Department, so we will not introduce the situation of the base here. This time, it was mainly to undertake the task of developing a high-precision tactical rifle assigned by a higher department. The time is tight, the task is heavy, and the design work has been completed, but the aiming system is not our strong point. Next, I would like to invite Liu Yijiu, deputy head of the high-precision tactical rifle research project team, to introduce the situation to you...... "Chen Dashan, as the person in charge of the base, did not introduce his identity.

Although the base of the Ninth Academy is top secret, now that the higher-level leaders have tacitly assigned scientific research tasks to them, cooperation is a must.

If you don't explain the situation clearly, how can you cooperate in the future?

"So young? Not kidding, right? Seeing that Liu Yijiu was so young and was actually the deputy leader of the research project team, the technicians and managers of Factory 298 were immediately surprised.

There was a lot of discussion.

For such a thing, Liu Yijiu didn't care.

He's too young, sniper rifles, how many people haven't succeeded?

"Ladies and gentlemen, the high-precision tactical rifle we designed this time has an effective range of 1,000 meters and a maximum range of 1,500 meters. Here is the outline diagram of the sniper rifle we designed, we hope that your factory can help us develop a magnification of at least six times, the angle of view is about 6 °, and the appropriate distance from the scope eye mask to the shoulder is 190~200mm, which is determined to be 195mm; The distance between the ruler and the door is 245mm; The height of the gills is 50~75mm according to the design requirements of the man-machine ring, in order to use the scope not to be too high, so that the center of mass of the whole gun is close to the axis of the rifle, our design requirements are 51mm; The height of the cheek of the gauge size 8 is 50~53mm......"

Everyone didn't expect that Liu Yijiu came up with such a series of technical requirements.

This shocked all of them who were engaged in technology.

Although these may not seem to have much to do with their work, they know that the parameters they put forward limit their design of the scope form factor. They are a real fit, synergy!

"In addition, we wanted this sniper rifle to be able to fight around the clock, so we wanted to add an active infrared optical system to the design. In addition, in order to achieve the highest power of the rifle, it is hoped that the scope can accurately measure the distance and orientation of the target in the largest range...... "Liu Yijiu's requirements are an upgraded version of the scope he is equipped with with the 85 sniper rifle.

Originally, the domestic 79 sniper rifle was an imitation of the Soviet SVD captured on the battlefield in Vietnam, due to domestic technical conditions and quality system problems, the quality of the quadruple scope was very poor, and when designing, it did not take into account how to combine the gun and the scope, which made the 79 type very criticized.

Even the 85 style, which was improved by the 79 style, still has many defects......

Liu Yijiu needed to minimize these defects from the beginning.

"Comrade Xiao Liu, although we developed the 62-type telescope more than ten years ago, the scope is different from the telescope. With so many requirements, let's ...... in a short period of time" A slightly chubby middle-aged man who was not tall and had a bald forehead said to Liu Yijiu.

For this young man who they guessed at the beginning that he had a great background, just by hearing these words, they were sure that he really had a great background, but this origin was completely different from what they thought.

"Xiao Xue, what's this? Have you forgotten the difficulties we had in tackling the 62 telescope in the first place? How many years have we not had technological progress? As the first optical instrument factory in China, we don't even have anything to do with the army's ground sighting system now. After so many years of idleness, do you want to continue? Is it possible to give this project to other factories? If there is difficulty, there is no difficulty! Our 298 factory, will we care about the technical difficulty? Regarding this matter, Cao Jingui, the director of the thin factory in his sixties, directly patted the table and said.

"Don't care!" Maybe Cao Jingui is well managed, or maybe many people are from the army, and when he said this, everyone replied firmly! This voice gave Liu Yijiu hope.

"Director Cao, are you willing to assist us in this project?" Liu Yijiu asked the old man very seriously.

If it doesn't work, they can find Factory 358, although it was later established, but the technicians and equipment are from Factory 298.

"Of course I do. Comrade Xiao Liu, we have already recorded these demands of yours, and we will go all out to tackle key problems starting today. How much time have you left us? "There is definitely time for these projects.

As for research funding, they don't need to think about it.

"Two months at most!" Chen Dashan also knows that these studies cannot be completed in a short time, and there are still more than two months before the Spring Festival, and he hopes to get a new gun before the Chinese New Year! When the time comes, use this to beat rabbits and add vegetables or something, yes!

"This ......" Cao Jingui was a little embarrassed.

"Any questions?" Chen Dashan's identity is unknown to others, but it is impossible for Cao Jingui, who is also from the army, not to know.

"No problem, let's attack it as a mountain!" Cao Jingui patted his chest and said.

There were some technical discussions, mainly because Liu Yijiu told them their detailed requirements for the scope, and then the technicians of the 298 factory put forward the difficulties inside, and then the technicians of the 298 factory discussed it, and in just a few hours, they came up with a preliminary plan.

In order to improve the defect that the 79/85 sniper rifle and the scope cannot be well combined, Liu Yijiu specially made modifications when designing this sniper rifle, and the front handle was also directly removed by him, and it was changed to a mechanical sight that can roll over.

Because Factory 298 has experience in tackling key problems with 62-type telescopes, it is relatively easy to meet Liu Yijiu's requirements in terms of sniper scopes.

"Director Cao, I hope you can take out the initial samples as soon as possible. In the beginning, it was impossible to design without the slightest problem, and as long as there were samples, it was possible to modify the design while experimenting. The superior leader meant this...... "Chen Dashan is worried that he won't hurry up here, and he learned a lot of things from Liu Yijiu on the way here, and he didn't show his stuff here."

As Liu Yijiu said, he adjusted the wind deviation, height and magnification, and he mentioned them to the other party.

However, in terms of adjustable magnification, no one in Factory 298 dares to guarantee it, and it can only do a fixed magnification first......