Open an aircraft carrier to fight against Japan

Lin Yuan looked at the radar screen and exclaimed, "Why is this?"

Li Kai asked blankly: "What's wrong? Is there something wrong?"

At this time, Ma Zhiliang came over from the side, smiled when he saw the computer screen, and said, "Why do you use such an ancient display interface?"

Lin Yuan smiled and said, "That's right, there are so many advanced display modes you don't need, you have to use the oldest one."

It turns out that there are many kinds of radar display screens, and different display screens are used according to different purposes. The airborne radar of the J-25 is equipped with the most advanced raster scan display screen. This display screen has the general imaging effect of a TV, and can To switch between multiple displays, the target's parameter information can also be superimposed on the screen.

However, what Li Kai used just now is the oldest and simplest A-type distance display and P-type azimuth display. The A-type distance display only has radar echo information, and even the distance will not be displayed on the radar screen by itself. , the radar operator needs to read the round-trip time of the echo according to the scale line on the screen, and then calculate the target distance according to the speed of light.

The same is true for the p-type azimuth display. It is a circle with the radar as the center, and the light sweeps across a 360-degree circle. If there is a radar echo on the circle, a bright spot will appear on the display, but the radar system will not display the target azimuth by itself. , requires the operator to read out the bearing by himself according to the dial on the screen.

Li Kai said with a smile: "I prefer the old monitors, Captain, do you know that? This is more participatory. If the degree of automation is too high, the radar operation will become readings on the screen. What's the point?"

Lin Yuan smiled and said, "The Japanese minesweepers have already entered the river, and now there is thick fog rising on the river, and optical detection methods are not working well, it all depends on our radar."

Li Kai said: "No problem! I will switch the radar screen back now." After Li Kai finished speaking, he typed the command "Switch the integrated display" on the keyboard. This process only needs to be pressed on the plane, but now Without that condition, you can only type in the instructions yourself.

After the command was input, the radar screen suddenly became messy, and it was full of messy light spots. Li Kai looked at the screen and said in surprise: "Hey, what's going on? Could it be that the radar system is malfunctioning?"

Lin Yuan said helplessly: "You didn't activate the target detection, it's full of clutter, get out of the way, I'll do it."

Li Kai asked in surprise: "Captain, do you understand this too?"

Lin Yuan said: "When I was flying the J-25, I looked at the radar screen every day, and I couldn't be more familiar with it." Lin Yuan sat in front of the computer and typed "moving target detection on" on the keyboard. With this instruction, the messy clutter on the screen disappeared very quickly, replaced by four clear dots of light.

The so-called "moving target detection" is the killer weapon of radar when detecting targets on the ground or sea. Simply put, because the ground and sea are not moving, their echoes at different times are roughly the same. By subtracting the echoes from the ground or sea, the clutter on the ground or sea can be filtered to obtain the information of the moving target.

Lin Yuan entered the "tracking mode on" command again. The tracking mode is used to guide the airborne missiles to attack the target. In this mode, the radar can calculate the position of the target at the next moment based on the speed and acceleration of the target. Then guide the missile to hit the target.

Lin Yuan entered the information display command again, and soon, the speed, azimuth, distance and other information of the Japanese minesweeper were displayed on the radar screen. Lin Yuan thought to himself: "Which one should we attack first?" He looked at the enemy ship They still carry out minesweeping operations in groups of two and two, with the group behind them obliquely below the group in front.Lin Yuan then decided to hit the group behind them first, so that the group in front would not be able to escape even if they wanted to turn around. Lin Yuan ordered Yao Feng: "Prepare the cloud bomb, launch it alone! The distance is [-] kilometers. Azimuth hole three seven!"

Yao Feng quickly sent back a message: "Preparation is complete, ready to launch at any time!"

Just as Lin Yuan was about to order the launch, ten light spots appeared on the radar screen, and these ten light spots quickly approached the Japanese minesweeper behind him. Lin Yuan was startled and thought: "What is this?" So he said: "Wait a minute Wait, don't launch yet."

Li Kai also asked, "What is this?"

Lin Yuan shook his head and said, "I don't know, why did it appear suddenly? Could it be clutter interference?"

Li Kai said: "Probably not, Clutter can't be like this."

Lin Yuan thought for a while and said: "I see, this is a ship of the Qing army. They attacked, and I told them. Don't attack without my order. Why didn't they listen! The cloud explosion is very powerful. They're so close, they're bound to hit them by mistake."

The light spots flickered for a while and then disappeared. Lin Yuan knew that they were very close to the Japanese minesweepers at this time, and the radar could not distinguish which were them and which were minesweepers.

If you fire the gun, you will accidentally injure your own people. If you let the minesweeper open the channel, the enemy may open up a landing field on the side and rear. On the balance, Lin Yuan said to Yao Feng in the communicator: "Change the target, the distance is [-] km, azimuth dongdong [-]."

The target was the minesweeper in front of the Japanese army. Yao Feng then turned the direction of the artillery, and then fired the artillery. The shell roared and fired at the minesweeper. The "short, thick and fat" missile body has a relatively large volume, but it also sacrifices some ballistic performance, so the range is shorter, but it is more than enough to hit minesweepers on the river.

The shells drew a beautiful arc in the thick fog. All the attention of the Japanese minesweepers on the river was underwater. Minesweeping is a very dangerous job in any era, and the minesweepers could not be sure whether they were on their route. There are mines. Is my draft depth lower than the fixed depth of the mines? Therefore, the Japanese soldiers on the minesweepers are silently praying to God Amaterasu, hoping that Kazuo can bless them safe.

The projectile designed by Luo Chaoying uses a time fuze. Yao Feng set the detonation time according to the target distance. However, the environment where the projectile flies is always beyond human control. Therefore, the projectile detonation time is a little later. When the projectile detonates, it has already flown. More than ten meters past the minesweeper.

The fuze detonated the primary charge at this moment, and the primary charge immediately exploded the outer shell, blasting dozens of kilograms of gasoline inside into the air. The explosion did not produce sparks, and the action time was extremely short. Therefore, the gasoline was not ignited, and when a large amount of gasoline diffused into the air, the secondary charge detonated.

The secondary charge is used to detonate gasoline. In an instant, a huge fireball illuminates the cloud and mist, and the bright yellow light is shrouded in the milky white water mist, which is extremely dazzling.

The burning produced a high temperature of thousands of degrees, and several Japanese soldiers standing on the deck operating the cannon suddenly screamed. The high temperature burned their skin, ignited their clothes, and turned them into terrifying human-shaped torches. .

The Japanese soldiers screamed and jumped into the river, and the wooden outfitting on the ship was also ignited. Several fires erupted on the minesweeper. At this moment, another shell came one after another. There was an explosion, and a huge fireball instantly enveloped the minesweeper.