Changye, Shanxi, barely a cloud can be seen on the blue sky..

At this time, an aircraft formation stretching for more than ten kilometers was flying in the direction of Jiyuan City. The plaster flags painted on those aircraft all told people that these were the aircraft of the Japanese who had done many evil things.

Takeo Kato, leader of the 1st Squadron of the 2nd Flying Group, flew a Type 97 fighter in the middle of the formation.

Overall, he is quite satisfied with the service of the Type 97 fighter jet. Compared with the old Type 95 Ki-10 fighter jet, its various functions are much more advanced.

Whether it is speed, diving or climbing performance, it far exceeds the Type 95 fighter jet.

Even compared with Japan HNA's Type 96 naval battle, it is not far behind.

However, it is said that the fighter capabilities of the 98th Army are very good. Whether it is armor, firepower or maneuverability, they far exceed the Japanese Navy's Type 96 warships. This also makes him have a great impact on the aircraft of the 98th Army.

I am curious as to what kind of aircraft can suppress the Navy's Nine-Six into losing its temper.

He carefully looked at the plane's instruments, but the conclusion he came to made him frown, because the plane's fuel had already been used up less than half. If he continued like this, he would still be able to hold on for a few more minutes of air combat when he reached the sky above Jiyuan.

?One minute or two minutes?

He felt extremely irritated when he thought of this. Originally, he was firmly opposed to this bombing operation because the range of the fighter jets was too tight.

Once an air battle is carried out over Jiyuan, fuel consumption will inevitably increase, and their planes may even have to make an emergency landing on the borders of the Shanxi-Sui Army.

But the operation involved a battle between the top brass of the army and navy, plus pressure from the emperor.

And for these extremely big bosses, how could he, a small squadron leader, have any place to refute?

Moreover, their intelligence officers discovered that Jiyuan has a large number of steel, cement factories and arsenals. In addition to supplying a large amount of strategic materials to the 98th Army, these factories also provided a large amount of weapons and equipment to the Kuomintang central government.

All these made the top brass of the Japanese army very worried, so the base camp decided to send a large number of bombers to carry out this bombing mission at all costs. It was important to destroy the three bombers, but what they hoped more was to blow up those arsenals.

Only by blowing up these arsenals can we effectively combat the arrogance of the 98th Army and lay the foundation for the future victory of the Japanese Empire.

The flight formation continued to fly south quickly. Looking at the mountains below, Kato Takeo's bad mood gradually improved.

Suddenly, he noticed that there seemed to be a few small black spots in the sky. These small black spots were slowly flying towards the north, but he could not see them clearly because they were too far away.

So he used his eyesight to look over. All pilots have very good eyesight, and he was no exception.

As the distance got closer, he discovered that they seemed to be four large bombers, but because they were flying too high, he was a little unsure of their identities.

At this moment, I suddenly remembered the famous Reaper bomber brigade of the 98th Army. Could it be that they have been dispatched again?

But didn't they have three planes? Why did they become four? And their direction should be - Taiyuan City.

When he thought of this, big drops of cold sweat dripped from his forehead.

If Taiyuan Airport is bombed, where will they land? Do they have to make an emergency landing on the road?

Soon these four planes flew over their heads, which also caused a commotion in the Japanese aircraft formation.

Some pilots wanted to pull up their planes and shoot them down, but there were no orders so they could only continue flying forward.

Kato Takeo also raised his head and looked up at the sky, and suddenly a yellow signal flare slowly rose up.

Seeing this, he shook his head. He knew that this was an order for them to be on alert. It seemed that the commander had no intention of letting them attack the four aircraft.

Since the vast majority of Japanese aircraft are not equipped with radios, the command of aircraft formations is very problematic.

This is especially true for larger and more complex operations. In this case, they usually formulate several battle plans before the operation, then tell the pilots about the plan, and finally launch signal flares to tell the pilots which plan they should execute.

The aircraft formation still flew in the direction of Jiyuan at the most fuel-efficient speed, and soon they arrived at the Taihang Mountains.

Flying over the Taihang Mountains should be Jiyuan, Kato Takeo thought secretly.

But he didn't know that at this time, three terrifying super anti-aircraft guns were already aimed at them in the distance.

At an artillery position about ten kilometers away from the Taihang Mountains, three gun barrels that were nine meters long and about as high as a three-story building were slowly moving.

Because the attack came too suddenly, some gun crew members did not return in time, so only three of the four 150mm anti-aircraft guns were able to fire.

Now these three anti-aircraft guns are all built on a concrete cylindrical gun bed 2.5 meters underground, and most of the gun mount is contained in this cylinder.

The exposed part is equipped with a 12mm bulletproof steel plate to prevent damage from fragments and bullets.

These cannons are not only equipped with the most advanced optical observation instruments and firing directors, but can also direct battles through radar. They are definitely one of the most advanced anti-aircraft guns of this era.

What provides these anti-aircraft guns with enemy aircraft information is the Würzburg fire control-D type radar. This radar itself is a fire control radar specially developed to guide anti-aircraft gun fire. (Later, it was developed on the basis of it.

Würzburg-Giant Radar that guides fighter jets in battle)

It uses a dish antenna, a dish-shaped reflector, which can rotate 360 ​​degrees.

The operating wavelength is as high as 50 centimeters, and it can detect information about enemy aircraft 25 kilometers away. The error in the horizontal direction is less than 25 meters, and the azimuth and altitude errors are less than 0.2 degrees. Even during the entire World War II, it was a very advanced fire control radar.

Through radar detection, they quickly obtained all the information about the enemy aircraft. After calculating the ballistics, they quickly adjusted the angle of the gun body, and then there were three loud bangs of "Boom!", and three artillery shells weighing 80 kilograms were fired.

It shot high into the air at nearly three times the speed of sound.

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The Japanese aircraft formation was still flying rapidly in the direction of Jiyuan. At this time, Kato Takeo suddenly felt a strong sense of uneasiness.

This feeling made him very uncomfortable. He looked up in the sky and found no trace of enemy planes.

Could it be that they were targeted by anti-aircraft artillery? An uncontrollable thought suddenly emerged from his mind.

At this time, two deafening explosions suddenly erupted from the aircraft formation ahead, and then two entire three-aircraft formations - six aircraft were hit.

Three of them were directly hit and exploded in the air, and the other three also fell down with black smoke.

Seeing this, Takeo Kato couldn't help but open his mouth in surprise. What kind of anti-aircraft artillery could be so powerful? It was amazing to shoot down six planes with two cannons.

What he didn't know was that this 150mm anti-aircraft gun had severely damaged three B29 bombers flying at an altitude of 10,000 meters at Japan's Kyugayama Air Defense Base. Moreover, the shell exploded directly in front of the B29 formation at that time.

This shows how powerful this kind of cannonball is. A small Japanese plane will definitely die if it touches it, or fall off if it touches it.

Moreover, Lu Mingxuan also installed the most advanced radio proximity fuze of the Allies in World War II for this artillery shell. It uses the shell as an antenna. The fuze has a built-in vacuum tube radio wave transmitter, which emits a radio frequency of 180 to 220 MHz after being powered on. When the bomb is used,

body close to reflective object

At this time, part of the radio wave is reflected. As the distance between the projectile and the target decreases, the Doppler effect causes the reflected radio wave to cause a low-frequency signal of 200-800 Hz in the current of the transmitter. This signal is filtered and amplified. When the signal strength exceeds a certain

When the limit is reached, detonation will be carried out.

It played a very important role in the Allied victory in World War II. On the European battlefield, the radio proximity fuze was one of the main reasons why the United Kingdom successfully blocked the German V-1 rocket offensive in 1944. Shooting down the V-1 rocket anti-aircraft

Most artillery pieces are equipped with two new inventions: fire control radar and radio proximity fuze.

According to post-war statistics, it takes an average of 150 rounds to shoot down a V-1 with a radio proximity fuse, but about 2,800 rounds are needed to use conventional artillery shells. This shows how important its role is.

"Everyone, please disperse."

Kato Takeo shouted loudly, and after saying that, he pulled up the plane and flew high into the sky, but what he didn't know was that the height of the anti-aircraft gun was high enough to make him desperate.

Simply following his instructions, the pilots quickly flew the planes to disperse.

But soon, three more bombs exploded in the aircraft formation, and four more aircraft were knocked down by these shells.

Although this 150mm cannon has a very large caliber, its rate of fire is not slow at all and can reach a rate of one round every 4 seconds.

And in the face of this relatively dense formation flight, this is when this radio proximity fuze shines.

Seeing this, Kato Takeo couldn't help but grit his teeth in anger. He didn't expect that the enemy's anti-aircraft artillery had such a long range. They probably hadn't entered Jiyuan territory yet, so why were they hit by the enemy's anti-aircraft artillery so quickly.

Soon, the three 150mm anti-aircraft guns quickly launched bombs weighing 80 kilograms one after another into the formation of Japanese aircraft, and then set off bursts of bloodshed in the formation of Japanese aircraft.

Its huge power was enough to make all Japanese pilots stunned. The large-caliber anti-aircraft guns in World War II mainly killed enemy aircraft through fragmentation.

The 150mm anti-aircraft gun shells can produce more fragments, and the killing range of these fragments is also longer. The Japanese aircraft, which have never paid attention to aircraft protection, are simply like the most vulnerable babies when faced with these fragments. Almost every time

A salvo of three anti-aircraft guns can bring down one or two aircraft.

Seeing this, Kato Takeo couldn't help but his eyes were red with anger, those damn anti-aircraft guns.

At this time, three red flares suddenly rose in the sky. Seeing this, Kato Takeo knew that he had to implement the third combat plan.

Are we going to attack by force? Takeo Kato thought calmly.
Chapter completed!