Li Guang's order was actually not slow, but the guards on the merchant ship were also tight enough. When the moonlight had just sprinkled over the sea, the sailors on the deck, who were in charge of the lookout, had already seen the periscope of the Pixiu not far away. Under Yamaguchi's arrangement, each merchant ship was even assigned a regular Saimoto naval soldier to be in charge of lookout.

Almost at the same time, the Pixiu fired its first torpedo, and a merchant ship began to fire.

This kind of distance is too close, less than a few hundred meters away, and the little devil's first shot is less than ten meters away from the Pixiu.

Through the sea, the power of the 75mm shell was not very great, but this cannon sound immediately made Li Guang break out in a cold sweat. The reaction speed of the little devil startled Li Guang.

At this time, the Pixiu had already turned on six torpedo launchers. In other words, if these six torpedoes could not be launched in time, the Pixiu would not have been able to dive. Forced dive, under the huge water pressure, the torpedo can explode without impact. Not to mention being blown up by a few torpedoes, even one had to be blown to pieces. And closing the torpedo launcher cover, depressurization, etc., is slower, and it takes more than ten minutes to complete.

At this time, Li Guang had no other choice, only the submarine accelerated, and quickly fired the remaining five torpedoes in motion.

The sea was already rumbling with cannons. Cannonballs rained like hail around the Pixiu. There were even one or two that landed directly above the Pixiu.

It is said that all the howitzers used in this merchant ship exploded when they entered the water. Theoretically, but no one can be sure that the shell will explode a few meters into the water. It is also very likely that it will explode after hitting the Pixiu.

After all, a merchant ship is not a warship, and when the first torpedo hits a merchant ship, the force of the explosion is so powerful that the cannon on the battlefield is suffocated.

In just a few seconds, the Pixiu only randomly selected two targets, and five torpedoes were fired out in a fan.

Suddenly, a cannonball hit the Pixiu, and the Pixiu felt a shaking and a buzzing in the ears. The distance was too close, only a few hundred meters, and the 75mm gun of the devil was almost direct fire at this time, and the shell carried a huge kinetic energy to blow up the alloy shell of the Pixiu, causing a water tank to burst when it landed, and the submarine immediately sank uncontrollably.

In an instant, it was really dangerous, and if this shell had hit the Pixiu earlier, the five torpedoes would not have had time to fire. The Pixiu is almost the same as sitting on a bomb.

There are many water tanks on the Pixiu, and a rupture of one water tank does not endanger the safety of the hull. However, a tank with all water can break the buoyancy balance. And the explosion of this shell was in the stern, so that the tail of the submarine turned down, the head up, and the original equilibrium of the Pixiu was changed in a very short time, and the hull was almost at a forty-five degree angle.

The head of the submarine actually rose more than 20 meters in just a few tens of seconds, and the head protruded more than 10 meters out of the sea. Inside the Pixiu, the fighters immediately staggered.

Fortunately, five torpedoes were fired, and the continuous explosions interfered with the shelling of the devils. Many of the merchant ships said that they had never seen a submarine at all, and they were surprised and even a little flustered by the sudden appearance of a behemoth on the sea.

The Pixiu was not facing the navy, but the merchant ships, which gave the Pixiu a chance to escape. If it was directly facing the destroyer, then in just a few tens of seconds, the Pixiu would be blown to pieces by the powerful fire of the ship's guns. In the face of such a good opportunity, the gunners on the merchant ship were in a sluggish period, and almost did not fire a single shot in tens of seconds.

Dozens of seconds later, the Pixiu fell to the bottom of the sea like a steel awl. Leaving a whirlpool on the surface of the sea and disappearing.

From his point of view, Pixiu seems to be out of control. In fact, due to the loss of balance of the submarine, many fighters were bumped and injured, and there were not a few unconscious, and the Pixiu was really out of control in this short period of time.

Li Guang hugged the periscope tightly at this time and shouted: "The stern of the boat is raised by fifty." ”

The stern of the boat is raised by fifty, which is already the limit of the submarine. In the panic, Li Guang only felt that the entire submarine was rapidly descending, going deep into the bottom of the sea, and there was no way to estimate the amount of adjustment.

The elevator was thrown aside by the sudden change, and he was already unconscious with a head injury, and at this critical moment, Ji Keliang, who was thrown out of his work position, moved a handrail, and he was next to the elevator at this time.

As Tykran pulled down the lever violently. Only the sound of strong air currents was heard in the submarine, and the high-pressure air was quickly overwhelmed by the aft tank.

With the entry of high-pressure air, the sea water in the aft tank was quickly discharged, and the submarine began to return to equilibrium.

Li Guanggang breathed a sigh of relief, and Ren Tianyang shouted anxiously: "Big pipe, close the No. 30 water tank valve." ”

The gas valve of tank 30 must be closed immediately, as a hole has been blown open by the bomb. If not switched off in time, the compressed air will be quickly depleted.

Although there was a mess in the submarine, the fighters who had undergone a short period of training managed to endure the pain and keep quiet. After Ren Tianyang's order reached the engine room, the pipe loss soldier immediately took action and closed the air valve of the No. 30 water tank. The Pixiu is out of danger for the time being.

The submarine finally regained its balance after shaking for a while in two minutes, and Li Guang saw the depth gauge (pressure gauge) at this time, and the submarine had just dived to a depth of 70 meters.

People have no concept of depth in a panic, and the rapid decline just now even has an illusion in the minds of many people that the Pixiu has slipped to the bottom of the sea. Even Li Guang felt that it was probably more than two hundred meters, and now it seems that it is an illusion. However, the submarine slid seventy meters in a minute or two, and the speed was terrifying enough. That's the equivalent of more than 20 stories deep.

Having just stabilized, Tikrian again reported that there was the sound of an object falling into the water, most likely a depth charge.

Li Guang no longer dared to slack off, and immediately ordered to continue diving.

Two explosions sounded 100 meters away from the Pixiu submarine, and the huge body of the vibrating submarine shook a few times. A thought popped up in Li Guang's heart: "Intercept." ”

There is no doubt that this is the destroyer intercepting the Pixiu.

Immediately Li Guang ordered, left full rudder.

It's quiet underwater, but it's also scary. During the sea trials of the Pixiu, it dived 200 meters to the bottom of the sea twice. At that time, the crunching sound of the hull caused by stress began to appear at a depth of one hundred and fifty meters, but now that the Pixiu had just reached one hundred and thirty meters, the hull began to make a terrifying crunching sound.

This sound is not loud, it can even be said to be tiny. But in the ears of the Pixiu fighters, the sound of this rat grinding its teeth was even more terrifying than the sound of naval guns.

One hundred and thirty meters, the water pressure is thirteen atmospheres, and once there is a problem with the pressure-resistant shell at this depth, absolutely no one can survive. Even most fish have difficulty surviving under 130 meters of water, let alone humans who live on land in the first place.

Li Guang and Ren Tianyang glanced at each other, and the Pixiu dived to one hundred and fifty meters, which could be stopped. At this time, neither of them dared to venture again, the Pixiu was a new ship, and the injury was unknown, and reaching this depth was already an adventure.

Tikrian reported softly that there was the sound of a destroyer in the first nautical mile.

Li Guang was a little depressed, and both directions were intercepted by the destroyers of the Yue Army. I had to give the order, once again full left rudder, and the hull of the boat turned ninety degrees to continue to break through.

On the sea more than ten nautical miles away from the battlefield, the Awata Maru was quite proud of Yamaguchi Tawen. He expected the Pixiu's attack this time, and several captains did not support the judgment that there was a submarine attack. However, the concept of hierarchy in the navy is extremely strong, and no one dares to question Rear Admiral Yamaguchi Tawen.

On board the Awata Maru, three seaplanes have already begun to be laid down, ready to assist in reconnaissance on the battlefield. And one of the destroyers following the Awata Maru was already killing the battlefield at top speed.

Li Guang didn't know all this, he was facing another crisis at this time. For the first time, the Naval Resistance Army encountered active sonar.

While the Pixiu was diving in the deep water at a silent speed, there were a few slight groans. This voice was heard not only by Tikryan, but also by the fighters in the submarine.

Li Guang had not had this kind of experience before, and he took it for granted that it was impossible for the ultrasound human ear to hear it. But the fact is that ultrasonic waves diverge in seawater, and the quality of ultrasonic generators in these years is not good, and there is always clutter accompanied by ultrasound, which can be heard clearly by human ears. At this time, Li Guangcai realized that in the plot described in the movie, when the active sonar was looking for the submarine, the people in the submarine could hear the voice. The plot that he thought was a bug turned out to be true.

In the face of modern instruments, Li Guang could only hope that the exterior painting of the Pixiu submarine would play a role and get through the trick.

On the Hatsuchun-class destroyer "Ariake", sonar soldier Shiro Ichikawa is watching the oscilloscope with full attention. At this time, the pattern on the oscilloscope is very strange, and according to Shiro Ichikawa's experience, it should be a signal for the return of the submarine reef.

And this signal is very unclear, and there is no way to judge the distance.

In a slight confusion, turn the knob to continue the search underwater.

After a while, in the listening device, Shiro Ichikawa heard some voices slightly, but not very clearly. However, Shiro Ichikawa has been trained for a long time, and he can distinguish a periodic surname in the blurred voice. Shiro Ichikawa immediately reported to the captain, and the Hatsuchun-class destroyer immediately pursued the Pixiu.

A few minutes later, Shiro was so remorseful that he almost slapped himself. When the destroyer reached the surface of the ocean where the reef had just been found, he realized that there was no reef at all. In the middle of the Pacific Ocean, the depth of the sea is definitely more than a thousand meters, where there are reefs.

However, Shiro Jeonkawa did not dare to squeak, which was a serious dereliction of duty. Fortunately, he was the only one listening, and no one noticed his abnormality, so Shiro Itagawa hid the plot.

Guilty, Shiro Jeonkawa immediately adjusted his active sonar and began to search around.

It was a small mistake just now that caused the destroyer Ariake to spend more than half an hour galloping around the sea at high speed to search in circles. When Shiro Jeonkawa catches the strange signal again, the Pixiu is about to escape from the search circle.

There is no way to do this, the destroyer is at a speed of up to thirty-three knots at the moment, and even if it is driving in a curve, it is much faster than the Pixiu. And Li Guang did not dare to sail at high speed at all, and only dared to sail silently in the deep sea at a speed of six knots.

When Shiro discovered the anomaly, he immediately reported it to the captain.

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