As the sound of the torpedo entering the water, Rong Kangjian picked up the stopwatch.

Soon, the low slap sound of torpedoes when they actively attacked the sonar and searched for the target. Rong Kangjian wiped off the sweat from his forehead and looked at Du Xinghua, who was as stable as Mount Tai, sitting in the commander's position.

Du Xinghua glanced at the officers and non-commissioned officers in the command center, with no nervous expression on his face.

In 20 years, Du Xinghua worked as a naval submarine captain for 20 years. Students of his same period, and the submarine captains who joined the army at the same time were either promoted to a higher commander like Hua Jianfeng, or transferred to a non-combat department, waiting to retire after serving, or received the navy's severance payment and retired early.

Until now, only Du Xinghua is still commanding submarine operations on the front line.

In terms of qualifications, Du Xinghuading is the "boss" among the captains of the Republic's naval submarines.

In June 2025, after the Peninsula War, Hua Jianfeng found Du Xinghua and proposed to let Du Xinghua go to the Submarine Academy to serve as a senior instructor. He also hinted that Du Xinghua had the opportunity to become the dean of the Submarine Academy (according to the organizational system of the Republican Academy, the dean of the Submarine Academy is at least a major general). Du Xinghua was also moved and took the opportunity to visit his alma mater at the end of the year to inspect it. In the end, Du Xinghua rejected Hua Jianfeng's invitation. In Du Xinghua's words, he lived on a submarine for a lifetime and was not used to returning to the shore. Hua Jianfeng did not force it, but promised that the location of the Submarine Academy would be kept for him and he could be transferred at any time.

Is Du Xinghua really used to living in a submarine? Obviously it is impossible.

Anyone who knows Du Xinghua knows that it is not that he doesn’t want to go to the shore, but that he doesn’t want to borrow the light of Hua Jianfeng.

For decades, Hua Jianfeng has been Du Xinghua's most important friend and Du Xinghua's strongest competitor. Although Hua Jianfeng has left the front-line combat force, no one can deny Hua Jianfeng's status in the Republic's naval submarine force. Du Xinghua is not the kind of competitive person, but he is also a very face-saving person. If Lin Xiaolei proposed it, Du Xinghua would definitely agree. But everyone knows that Lin Xiaolei is a person who is not good at guessing other people's thoughts.

Du Xingdi's decision also had a great impact on Liu Haifeng.

According to Hua Jianfeng's intention, if Du Xinghua refused to go to the Submarine Academy, let Liu Haifeng go to the Submarine Academy. After all, a submarine captain with rich combat experience needed to teach the new recruits of the Submarine Academy. According to the naval development plan, the Submarine Academy participated in the development and design of the new submarine field, and needed experienced captains to provide help to the designers. As a result, Du Xinghua did not go. Liu Haifeng refused to go. The reason was very simple. Losing to Hua Jianfeng. Liu Haifeng also accepted it. After all, Hua Jianfeng took him into the industry. If he lost to Du Xinghua, he would not be convinced.

"Old Du!"

Du Xinghua browed a few times and looked at his partner.

"The torpedo is approaching!"

"I know." Du Xinghua asked with a long sigh. "Hit time."

Rong Kangjian hesitated for a moment and said, "Fifteen seconds."

Because the anti-submarine torpedoes launched by Japanese anti-submarine patrol aircraft have not yet searched for the "April" model, Du Xinghua asked about the time when the torpedoes launched by the "April" model hit the "Canglong".

Du Xinghua stood up and glanced at the main monitor of the central fire control platform.

In addition to showing the tracks of the torpedo and the Canglong, the upper right corner also shows the countdown to the Canglong.

"Captain, continuous slapping sounds, the torpedo is turning towards us."

Du Xinghua frowned slightly, quickly glanced at the upper right corner of the screen, and said, "The left rudder is full, the speed is 8 knots, keep the depth."

Rong Kangjian was stunned for a moment and did not interfere with the captain's command work.

Although Du Xinghua's evasion order was somewhat unexpected, Rong Kangjian believed that Du Xinghua could lead the "Assinus" safely back to the port. Over the years, Du Xinghua had never made mistakes in patrol and combat operations and never disappointed his brothers on the boat.

"Captain, we were discovered!"

"Know how to maintain speed, course and depth."

At this time, the reading in the upper right corner of the screen just hits zero.

Du Xinghua muttered something silently and looked around. "Preparation of bait bullet..."

"The bait bomb is ready!" The electronic warfare officer immediately answered.

Du Xinghua nodded to the electronic warfare officer, recited silently for a few moments, and suddenly said: "Fire the bait bomb!"

The electronic officer dared not be too late and immediately pressed the switch that fired the bait bomb.

The bait bomb just ejected from the launch tube at the lower right of the submarine's command stand, and a dull sound came over. It was not the slap sound of torpedo attacking sonar, but the sound of the torpedo war thunderheads exploding in the sea.

"The host stops, first down fifteen, and the tail up fifteen, slowly dives."

"Dive slowly!" Rong Kangjian patted the helmsman's shoulder.

Du Xinghua smiled coldly and said, "Now we have to see if the dog god is willing to spend money on us."

At this time, the officers and soldiers on the boat understood Du Xinghua's attempt to evade.

At the beginning of the year, the Military Intelligence Bureau obtained performance data of Japan's new aviation anti-submarine torpedo, which clearly mentioned that Japan's new torpedo adopts a "dual-mode guidance mechanism". When attacking submarines, general anti-submarine torpedoes will be searched passively. After discovering submarines, they will switch to active tracking and locking submarines until they sink the submarine. Japan's new anti-submarine torpedoes use active/passive dual-mode guidance when searching and attacking, that is, they are installed on the head of the torpedo at the same time.

Attack sonar and passive sonar arrays mounted on the side of the torpedo to search and attack to maximize attack efficiency and reduce the chance of interference.

It seems that the new Japanese torpedo is very advanced, but it is not.

With its technical strength, the United States, the Republic, and France, Italy and other countries in Europe have the ability to adopt similar guidance methods on anti-submarine torpedoes. The reason these countries did not do this is very simple. At the same time, working in an active and passive manner not only increases the difficulty of anti-submarine torpedo processing information, which easily makes the anti-submarine torpedoes interfere with.

Du Xinghua's evasion measures were very simple, using the sound of explosions to interfere with Japan's anti-submarine torpedoes.

Unlike ordinary sounds, the explosion sound is very complex and the frequency band coverage is very wide. No matter which frequency band the passive sonar of the Japan Aviation Anti-Submarine torpedo works, it is easily disturbed by the explosion sound. The bait bomb is used to interfere with the active sonar of the Japan Aviation Anti-Submarine torpedo, causing its active sonar to lose its target at the same time. In this case, the Japan Aviation Anti-Submarine torpedo can only search for submarines again by searching.

Taking advantage of this opportunity, the "Tubus" may avoid anti-submarine torpedoes.

"Captain, the torpedo turned and was leaving us."

Xinghua just smiled faintly when he heard the sonar's report, and the officers and non-commissioned officers in the command center breathed a sigh of relief.

"Prepare for communication sonar buoys." Du Xinghua looked at his partner, "Send the news of sinking the 'Canglong' as soon as possible to let the Navy Command know that we have completed the combat mission."

"Now?"

"Be prepared, I will give orders before launch."

Rong Kangjian then breathed a sigh of relief. At this time, no matter what the "Spike" did, it would make a sound and be discovered by the anti-submarine torpedo again. According to common sense, communication buoys should be launched after reaching the safe sea area.

"Captain, Lei turned again and came to us."

"Did you find us?"

“No, searching.”

Du Xinghua frowned slightly. "Lao Rong, the time for torpedoes to enter the water."

35. "Rong Kangjian hesitated for a moment and said, "There is still about..."

Du Xinghua pressed his hand and said: "The right rudder is full, the speed is 8 knots, and the depth is maintained."

Aviation anti-submarine torpedoes are all light torpedoes. Japan does not master the production technology of advanced composite batteries, so most light torpedoes use ordinary battery operators that use Otto fuel engines. In this case, the range of light torpedoes is very limited. According to the information provided by the Military Intelligence Bureau, the maximum range of Japan's anti-submarine torpedoes is only 20 meters, and at the maximum speed of 0 kilometers.

Because anti-submarine torpedoes use low speeds when searching and high speeds when attacking, the range is between 1c and 20 kilometers. What exactly depends on how long the torpedo has sailed at high speed.

If a submarine wants to avoid torpedoes, it is best to leave the torpedo's attack range.

Time passed minute by minute, and the officers and non-commissioned officers in the command center also became anxious.

The anti-submarine torpedo is still searching nearby, and it is possible to detect the "Assinus" at any time, so it is possible to attack the "Assinus" again at any time.

"Torpedo distance." Du Xinghua broke the silence.

Kilometers are approaching."

Du Xinghua nodded slightly. After about 1 second, he suddenly said: "The host is fully powered, with a depth of 540, a course of 180, and a full speed!"

"Go forward at full speed!" Rong Kangjian grabbed the helmsman's shoulder.

The advantages of the electric propulsion system are revealed. Within 5, the propulsion motor reaches its maximum speed power. The speed of the "April" is increased from 8 knots to 37 knots, which only takes seconds, while the most advanced attack nuclear submarine takes at least 65 seconds.

"Use emergency power." Du Xinghua glanced at his partner.

“Emergency power?”

Du Xinghua nodded and said nothing more.

Rong Kangjian didn't ask any more questions and nodded to the helmsman.

"Captain, we were discovered by torpedoes."

"Bae bullet preparation."

"The bait bomb is ready."

Du Xinghua breathed a sigh of relief and glanced at his wrist watch.

When the torpedo approached, the navigation speed of the "April" quickly exceeded 37 knots. When the propulsion motor works at an emergency power of 125%, the "April" can reach the maximum speed of the knot. This is also the maximum speed that all electric submarines can reach today. Only when evading attacks can the motor work at emergency power in a short time. If it works at emergency power for a long time, no one can guarantee that the motor will not have any problems.

Now, what the "April" needs is speed.

The maximum speed of the torpedo is only 70 knots, and the maximum speed of the "Attoria" can reach knots. With a difference of 30 knots, the torpedo needs to sail about 85 kilometers to catch up with the "Attoria". The torpedo has sailed in the water for thousands of meters before. If its remaining power cannot run 85 kilometers, you will never be able to catch up with the "Attoria".

Du Xinghua calculated very accurately.

When the torpedo was about 250 meters away from the "April" the power was exhausted, the self-destruction device was started, and the battle thunder head equipped with about 20 kilograms of high-energy explosives was detonated.

The officers and soldiers of the boat breathed a sigh of relief, while Du Xinghua ordered the communication officer to launch the communication float.

Just when everyone thought they had escaped the disaster, a dull explosion sounded again outside the boat.
Chapter completed!