Courtyard light

Chapter 477: Lower your sights (second update)

Liu Hai's main goal was to guide the work of the turbine shaft workshop while starting to copy the drawings.

People in the Siheyuan were also surprised that Liu Hai drove a new car, but after Liu Hai drove the new car, he never took other people in the Siheyuan to work with him.

Because Liu Hai got off work late in the evening, Liu Hai was a little late deliberately in the morning. Anyway, Liu Hai had no one to supervise him.

The main reason is that Liu Hai feels a little uncomfortable with the new car driving people to and from get off work for free. The key is that some things become a habit after doing them, and Liu Hai himself does not smoke, but now many workers smoke, and they even spread cigarettes for others when they get in the car.

If someone smokes in the car, Liu Hai feels that the car smells like smoke for several days.

No one is allowed to smoke in Liu Hai's office, whether in the maintenance department, yacht manufacturing workshop, or now the turboshaft engine manufacturing workshop.

Sun Aiguo comes to the turbine workshop every day for a walk, and he also knows that Liu Hai is working on helicopter design drawings.

At the same time, Liu Hai also oversees the production of two movies, Transformers Part 3 and Kung Fu Panda Part 2.

This is not very time-consuming, that is, they will send samples every once in a while, and then Bangs will give comments.

"Later, I discovered that their helicopters were still very different from the helicopters I designed." Liu Hai knew that the Black Hawk helicopters of the United States were only finalized in 1974, and the initial appearance of the helicopter was very different from the one he designed now.

As far as the overall appearance is concerned, Laomei has also changed it many times, whether it is the windows or various other places.

"I can finalize it in 1973, but the Americans can finalize it in 74 years. It is estimated that all ours will be in service in 1974!"

"The next step is to make artillery radar." Liu Hai now makes pictures during the day, works overtime for two hours at night to make pictures, and rests the rest.

The reason why Liu Hai wants to make artillery radar is because artillery radar is the most helpful to us at this stage.

"Historically speaking, the Simbelin radar we imported can only be regarded as a mortar radar. For faster howitzers, the response is a bit slow and the accuracy is very low."

"Simbelin radars are divided into type one and type two. Type one is a towed type, and type two is a self-propelled type."

"That is, the first type is like a towed artillery, towed directly by a truck, and the second type is placed on an armored vehicle."

"The third type that was derived later used an electronically scanned phased array antenna system. I made something similar to this."

"At the same time, there was also the AN/TPQ36/37 artillery radar developed by Laomei."

"Laomei seems to have started developing this year, but I won't start researching until next year. But if the current semiconductor technology is to manufacture electronically scanned phased arrays, the antenna system will be relatively large." Liu Hai carefully recalled the artillery radar stuff. , of course, some weapons magazines on the aircraft carrier also introduce it, and there are also some related professional books. There are also many radars on the aircraft carrier.

Our country's phased array radar can be said to have reached the point of abuse when Liu Hai traveled through it. UAVs are equipped with source phased array radars, and phased array radars are also used to detect wild boars, and the whole thing is only three Ten kilograms.

And it can clearly distinguish wild boars from other wild animals. Imagine that a 30-kilogram phased array radar placed on a mountain can detect whether there are wild boars in a large cornfield or orchard?

How useful would this be if used in war?

"Of course, the radar's detection range is related to its size and power. The ballistic missile radar monitoring system currently manufactured by the United States and Big Brother requires one radar to provide power from several power stations."

"But relatively speaking, artillery radar is relatively simple. It only needs to detect the trajectory of artillery shells at two points to calculate the opponent's artillery position."

"The maximum detection range of artillery radar is one hundred kilometers, which is considered the best."

"The trouble lies with the radars on ships and fighter jets. Not only do they have a detection range of hundreds of kilometers, but fighter jet radars also need downward scanning capabilities, filtering capabilities, and multi-target tracking capabilities."

"The same goes for surface ships."

"But I can only do this as a prototype. The subsequent miniaturization and aircraft installation of the ship will completely depend on the capabilities of the relevant departments." In the aircraft carrier space, Liu Hai started to think about making artillery while looking at radar-related things. radar.

"However, limited by current manufacturing technology, it may be relatively large when the time comes."

"But it doesn't matter. Artillery radars are not small in the first place."

"My artillery radar is the first generation. It simply calculates the opponent's ballistics and artillery position coordinates. It does not need to have the ability to guide attacks like the artillery radars behind it."

"At worst, two more people will be enough."

"However, in the subsequent wars, artillery radars gradually lost their effectiveness. Ermao obtained a batch of artillery radars from the United States at that time. Although the models were a bit older, they were directly hit by the opponent's air scooters when they entered the battlefield. Blow up.”

"The main thing is the core data model. If the data model is well done, the calculation results will be faster." The radar's calculation model is to calculate the coordinates of the opponent based on the detection data input by the radar.

The artillery shell is a parabola. The artillery radar obtains the data of two points of the parabola of the artillery shell, and can calculate the coordinates of the opponent's launch position.

Of course, artillery radar also has shortcomings. Even the electronically scanned phased array radar system currently designed by Liu Hai has a very low calculation accuracy for low-trajectory howitzer shells.

As for the current mainstream artillery radar, it is basically only for mortar shells, and the ballistic calculation of this type of low-speed shells is relatively accurate.

"We need to take a look at the current level of domestic radar manufacturing." Liu Hai decided to find out this matter first.

So the next day Sun Aiguo came to the turboshaft engine workshop.

"Director, I have something to trouble you with." Liu Hai called the director to the office and said.

"What do you need?" Sun Aiguo thought Liu Hai had any needs in engine manufacturing?

"I want to know the current domestic radar manufacturing technology level, and reserve the position of the radar when designing the helicopter." Liu Hai made an excuse.

"Especially when I saw the information sent by my superiors, it was about phased array radar technology." Liu Hai said, because phased array radar technology was actually proposed very early, probably decades earlier than now.

It was only limited by the development of semiconductor technology, which began to develop rapidly in the 1960s, from large radar arrays to ships and then to aircraft.

The faster the development of semiconductors, the smaller the phased array radar will be in the future, and the technical level will become higher and higher.

Bangs need to know the current domestic manufacturing technology before designing.

Is it going to be a towed one like the old American one, or a self-propelled one like the Zoo One made behind Big Brother?

The Zoo No. 1 artillery radar built behind Big Brother places the radar antenna on the mobile armor. The antenna is folded when not in use and erects directly when in use.

Lao America is a traction type, and traction has an advantage, that is, the power generation vehicle and personnel are far away from the antenna.

The antenna can be placed more than ten meters away and connected with a cable, so that even if the antenna is hit, the damage to personnel will be minimal.

"Of course it's no problem. I'll help you find it later. When can the turboshaft engine be tested?" Although Sun Aiguo came to see it every day, he never asked Liu Hai about his progress.

"We have experience in manufacturing a turboshaft engine, and we can start testing it in the middle to late next month." Liu Hai said.

Of course Sun Aiguo knew that he was talking about the Gazelle helicopter that had been imported from the village.

"How are the helicopter parameters this time?" Sun Aiguo is most concerned about this now.

"It can seat more than a dozen people at a time. Each of the two turboshaft engines has more than a thousand horsepower." Liu Hai did not explain the detailed technology.

"In addition, I also have some ideas about rotor manufacturing." Liu Hai was ready to come up with the rotor manufacturing and design technology of the Black Hawk helicopter.

"If you have an idea, put it forward and I will report it. According to the parameters you designed, we will manufacture this helicopter ourselves in the future?" Sun Aiguo felt that this helicopter was suitable for the status of a motorcycle factory.

"This is at the discretion of the factory director." Liu Hai didn't think it was necessary, but when the factory director said this, Liu Hai certainly couldn't refute it. As long as he came up with better helicopter manufacturing technology in the future, the factory director would definitely let this go.

Liu Hai feels like helicopter manufacturing, there still need to be two or three factories to be competitive.

There is no competitiveness in having a factory manufacture it alone. You have to buy it anyway if you are not satisfied. Even if my equipment has not improved at all in ten or twenty years, you still don’t want to buy it from me.

If two to three companies compete, it will be better for the overall technology development.

"In the future, I also plan to design helicopters with stronger load capacity and professional armed helicopters. Please take a look at this helicopter." The information Liu Hai took out was the Cobra armed helicopter that he had collected before.

The Cobra armed helicopter began to redefine the armed helicopter. Before the Cobra armed helicopter came out, adding cannons, rockets, and machine guns to other general-purpose helicopters could be called an armed helicopter.

After the Cobra armed helicopter came out, general helicopters and armed helicopters were truly distinguished.

Cobra helicopters began to be equipped with American troops in 1967. Some of the information obtained by Liu Hai is recorded in it, and there are even photos of airplanes.

A lot of information on Liu Hai's side was given by higher-level departments, which mostly collected it through dealers.

Of course, what the dealers gave them was a lot of information from Lao Mei, and they couldn't possibly give it to themselves.

Besides, it’s impossible to keep a helicopter a secret. After all, it has to fly around frequently.

Sun Aiguo swallowed his saliva as he looked at the domineering appearance of the armed helicopter. How many weapons are there on this thing?

"Do it, we must do it." Sun Aiguo looked at the armed helicopters and instantly put aside the helicopters that Liu Hai just mentioned about transporting people.

Liu Hai smiled inwardly. His factory director was a veteran, but he still liked weapons like this.

"We will take the next step when we have accumulated enough technology for this transport helicopter. However, armed helicopters involve radar, missiles, rockets, fire control systems, etc. The factory director needs to get more information in this regard." Liu Hai added He spoke.

Sun Aiguo nodded. As long as Liu Hai needs information, the superior department will satisfy it, except of course the core mushroom technology.

Liu Hai is also going to start developing helicopter missiles. Isn't it just a seeker plus a solid rocket, plus a warhead?

It's not a very complicated thing.

In addition, Liu Hai plans to build an aerial motorcycle. Of course, this thing can only be inertially guided and can be understood as a cannonball with wings.

There is no global positioning system or remote control system, only inertial guidance.

Of course, inertial guidance also has its advantages, that is, strong anti-interference ability.

Global positioning systems and remote control systems are easily interfered with by electronic jamming systems.

And the key is the global positioning system. If it's your own, it's okay. If you use someone else's, it can pinch you at any time, or even change the data to let the missile hit you.

And the most critical thing is that if you use someone else's chip, it is very likely to fail at a critical moment.

"I'll find my superiors immediately when I get back." Sun Aiguo said directly to Liu Hai.

"Then I'll trouble the factory director." Liu Hai chuckled.

"It's just hard work for you. You have to direct people outside to work, and you have to make plans here." Sun Aiguo felt that Liu Hai was working too hard.

"Try to get our helicopter out as soon as possible. It's okay if I work harder." Liu Hai shook his head.

"Well, your science fiction dealers have decided to publish it. They are very optimistic about it and they are said to be making it into a movie."

"When a fantasy novel is made into a live-action movie, the dealers have not found a good candidate. They are mainly worried about the shooting effect, and no director can guarantee that they can reach the level of the illustrations in your movie." Sun Aiguo told Liu Hai two more pieces of news.

"It's up to them to do whatever they want." Liu Hai didn't have any objections to the dealer's actions, and there was nothing he could do about it.

As long as you can publish and make money, that's fine.

Liu Hai needs to get a feel for the semiconductor aspect first. If that doesn't work, he will allocate part of the funds to semiconductor research when the dividends are received this quarter.

When the helicopters are manufactured, and when the artillery radar is manufactured next year, there will definitely be some breakthrough.

When the antenna is made smaller, the power of the transmitter can be smaller, and the overall antenna can also be smaller.

Otherwise, the only option is to make it bigger. Of course, Liu Hai personally feels that it doesn’t matter if the artillery radar is bigger or smaller.

It’s just that after the radar is miniaturized, it will be beneficial for being installed on ships and aircraft.

"That's true, they are professionals." Sun Aiguo nodded.

Sun Aiguo hurriedly went to the superior department for support.

Liu Hai, on the other hand, scratched his head: "It looks like I'm going to be competing with helicopters for several years."

There are many categories of helicopters. In addition to Super Stallion helicopters, armed helicopters, and the Bird helicopter that special forces prefer.

In the movie Black Hawk Down, the performance of the Bird helicopter is amazing.

Instead, Black Hawk was hit by the enemy's RPG because he was about to hover and rappel.

The special forces of the United States like this kind of bird helicopter because it has low noise and low infrared signature.

In this movie, because of its small size, the Bird helicopter landed directly on the street, put down the people and took off without suffering any damage.

Of course, this movie is based on real events. In fact, when it came time for Liu Hai to travel through, the helicopter's survival environment was very difficult.

The main reason is that there are too many ground-based air defense weapons of all kinds. The most troublesome thing is the individual air defense weapons. You have no idea where the opponent is coming from.

Not to mention helicopters, even when Liu Hai passes through, the living environment of fighter jets is very worrying. If one fails, they may be targeted by anti-aircraft weapons.

At that time, manned equipment was more dangerous because there were drones in the sky at any time.

However, at this stage, these military equipment are still of great use. Liu Hai feels that he should set his sights lower and not set his sights too far.

Otherwise, it would be meaningless to see all the weapons and equipment collapsed.

Sun Aiguo came to the superior department and explained Liu Hai's request.

"You are already manufacturing helicopters?" The superior department leaders were a little surprised.

"Experiment, conducting experiments." Sun Aiguo then forgot to report the recent situation to his superior department.

However, what Sun Aiguo said makes sense, because reporting the situation below still requires a certain level of expertise before reporting.

If you report it too early, your joy may be in vain.

"Are there any specific parameters?" The superior department leaders were very concerned about the helicopter.

Because at this stage, helicopters are widely used, especially for armored forces.

To put it bluntly, it has a great advantage over tanks.

Although our tank technology is not bad, and we also have assault vehicles, we must have sufficient restraint when facing Big Brother's torrent of steel.

"We don't have this yet. We are manufacturing the engine, and Comrade Liu's helicopter design has not been completed yet." Sun Aiguo shook his head.

"But Comrade Xiao Liu said it can seat ten people." Sun Aiguo added.

"This matter needs to be reported frequently. We have an urgent need for this kind of helicopter. I don't know how their helicopter factory operates. There has been no technological breakthrough in the past few years." When the superior department leader said this, he sounded a bit complaining.

Sun Aiguo chuckled. It's not like Sun Aiguo doesn't understand now. It's too difficult to break through something as difficult as a helicopter.

The leader of the superior department added: "It still depends on Comrade Xiao Liu, but his thinking is indeed inferior to ours. The things in the science fiction novels he wrote are simply unbelievable."

When Sun Aiguo heard this, he rubbed his forehead: "Anyway, I read it several times, but I still can't understand some things in it."

The superior department leader chuckled: "I read Comrade Xiao Liu's science fiction novel. I don't have any knowledge, but I can't understand it."

When Sun Aiguo heard this, he was upset and took the cigarettes on the desk of the superior department leader in his hand: "I am just a big boss, but I can manage people. Who asked us to have Comrade Liu in our factory?" .”

Then Sun Aiguo left with the cigarettes of the superior department leader. The superior department leader shook his head when he saw Sun Aiguo leaving.

　Ten thousand words have been updated.

　　

　

(End of this chapter)