.The Shark appears on the right and when the attack sonar is activated, Ramons is waiting for the attack result.

Because both Mk48-7 torpedoes use self-guided attack mode, after launching the torpedo, the North Carolina's attack sonar switches to passive working mode, and together with the side sonar array, tracks and monitors the movements of the torpedo and the enemy boat. The noise of the torpedo and the "unidentified" submarine is very loud and the distance is very close. There is no need for the North Carolina to slow down, and it cannot slow down after receiving the enemy.

The silent deep sea was booming, and the heavy slap of the "Shark" attacked the sonar pushed the chorus to climax.

It also tightened Ramons' nerves.

The "unidentified" submarine not only followed the North Carolina, but also stared at the North Carolina, ready to launch a fatal counterattack at any time.

Ramons is very clear about what it means to use attack sonar.

What he just couldn't understand was why the "unidentified" submarine did not launch torpedoes immediately when it was attacked? Instead, it took a lot of time to maneuver to the right of the "North Carolina" before starting the attack sonar and recalculating the fire control data.

Does the "unidentified" submarine not have the necessary attack parameters when it is attacked?

Ramons felt it was unlikely, because if he was commanding the "unidentified" submarine, he would calculate the fire control data after biting the "North Carolina" and set attack parameters for the torpedo. He could cleverly use the Troy undersea peaks and sneak behind the "North Carolina" and follow him for several hours. His opponent was by no means an idiot, and he would definitely not ignore such an important issue.

It is easier to succeed when launching an attack from the side?

Ramons also felt it was unlikely. At least for the mk48-7 torpedo, as long as the distance is close enough, the tail chase attack will have the highest hit rate.

There must be another reason!

For a moment, Ramons couldn't think of the opponent's intentions.

The computer has calculated the impact time of the torpedo: thirty seconds.

Even if the "unidentified" submarine fires the torpedo immediately after launching the attack sonar, it cannot sink the North Carolina three nautical miles away within 30 seconds. What's more, the side sonar array did not detect the sound of the "unidentified" submarine pouring water into the torpedo launch tube and opening the front cover of the launch tube.

Perhaps the "unidentified" submarine had already injected sea water into the torpedo launch tube during maneuvering and avoiding, and the sound made was covered by the surrounding noise. However, when maneuvering violently, the front cover of the torpedo launch tube must not be opened. Only before attacking can the front cover of the torpedo launch tube be opened.

It doesn't take much effort to open the front cover of the torpedo launcher, and it only takes a few seconds.

Looking at the enemy boat posture data on the tactical screen, a thought suddenly flashed through Ramons' mind.

Is the "unidentified" submarine ready to circle behind the North Carolina and then launch a torpedo?

Although it is a bit incredible, this possibility does exist.

There are absolutely no more advanced heavy anti-submarine torpedoes, and even more so on. Active sonar and passive sonar are commonly used. The torpedoes made by the Soviet Union also have wake self-guiding capabilities. If the "unidentified" submarine belongs to China, then the anti-submarine torpedoes they are equipped with are likely to come from Russia.

Compared with active/passive sonar, wake self-guiding is more difficult to interfere with and has a higher hit rate.

When sailing, any ship will leave a wake on the route with water temperature, water flow and magnetic field and the surrounding environment. The length of the wake is determined by the ship's displacement, line shape and speed. The larger the displacement, the wider the linear shape, and the faster the speed, the longer the wake left by the ship. When large warships with a displacement of more than 10,000 tons are sailing at full speed, the length of the wake is often more than ten kilometers.

Although the wake characteristics of the submarine are not as obvious as those of the surface ship, there are also traces to be found.

Since the Soviet Union developed the first wake self-guided torpedo, the United States has been studying confrontation measures. Over the past few decades, the US Navy has not found an effective confrontation method. It is mainly because the physical properties of the wake are determined by the inherent properties of the ship itself, which is difficult to imitate and difficult to eliminate.

Relatively speaking, acoustic self-guided torpedoes are easier to deal with.

If the acoustic self-guided anti-submarine torpedo equipped with "unidentified" submarine is not advanced enough and wants to kill with one blow, it is very likely that it will risk going around behind the "North Carolina" and then launching the wake self-guided anti-submarine torpedo.

Because wake self-guided torpedoes gradually approach the target in the wake generated by ships in a non-line navigation manner, when using wake self-guided torpedoes, there is no need to aim at the target, but only aim at the target's route. After the torpedo enters the target's wake, they will launch an attack on their own.

As long as the MK48-7 torpedo is not hit by the MK48-7 torpedo before entering the second half of the North Carolina, the "unidentified" submarine will have the opportunity to launch the torpedo.

Thinking of this, Ramons fought in a cold battle.

The "unidentified" submarine has already stopped turning to the right of the USS North Carolina. Although it has stopped turning, the "north Carolina" is sailing north at a speed of 30 knots, and will soon expose the second half of the ball to the "unidentified" submarine, creating an opportunity for attack for the opponent.

You must never give your opponent a chance to fight back!

Thinking about these issues, Ramons only took a few seconds, and then ordered the right rudder to let the North Carolina turn the boat head towards the "unidentified" submarine.

Although this cannot eliminate the wake generated by the North Carolina, and the wake characteristics become more obvious when turning quickly, at least a more complex route can be generated, extending the attack distance of the wake self-guided torpedo and gaining more confrontation time.

After discovering the North Carolina turning on the "Shake", Meng Guangyang immediately made a report.

Zhou Yusheng showed a smile, a smile that was expected.

However, in the command cabin, everyone except him became more nervous because the North Carolina headed the boat towards the Shark and was able to launch torpedoes again.

"Old Zhou..."

"Wait a little longer." Zhou Yusheng glanced at Yang Yuanfan and turned his gaze to Lu Chengfeng.

"Twenty seconds, nineteen, eighteen..."

"What do you want to do most after you go back?"

Mu Haoyang was stunned and found Zhou Yusheng asking him, and then said, "If you can go back in time, you can go to Guilin with your girlfriend for ten days and half a month."

"Lying in bed all day long and doing nothing?"

Mu Haoyang smiled, looking a little shy.

"Then you are too pure and too out of date." Zhou Yusheng smiled and shook his head, turning his gaze to Li Xiaoming.

"I just want to sleep for a few days and nights in one go, get a few bottles of Erguotou and a few plates of crumbs before going to bed. If I find a few buddies to drink together, it would be great."

"How about me?"

"Of course, as long as you can go back alive." Li Xiaoming didn't take it seriously, because the chance of survival was very slim.

"...Ten, nine, eight..." Lu Chengfeng was still counting, but his voice was slightly trembling.

"Prepare to launch torpedo bait bombs." Zhou Yusheng stood up.

Yang Yuanfan was already standing beside Meng Guangyang and grabbed the projectile switch of the interference bomb.

“Six, five…”

"emission!"

As soon as Lu Chengfeng reported to the "Five", Zhou Yusheng issued a launch order, and Yang Yuanfan immediately pulled down the handle.

"Bang...bang..." Two sounds, two torpedo interference bombs placed behind the submarine's enclosure were bounced out by high-pressure air.

"Come on again, use a backup jamming bomb."

Whenever Yang Yuanfan hesitated, he immediately grabbed the handle below and pulled it down again.

This time, four jamming bombs were thrown out, which were ejected from the ribs on the left and right sides of the submarine.

"The right rudder is facing the 'North Carolina'."

"Impact the 'North Carolina'?"

Zhou Yusheng nodded to Yang Yuanfan without explaining.

When the Shark turned sharply, six torpedo interference bombs began to work in sequence behind them. The chemicals stored in the bomb reacted with the sea water, producing a large number of bubbles. In less than two seconds, a bubble curtain wall was formed, blocking between the two torpedoes and the submarine.

At this time, the slap sound from the torpedo active sonar was significantly weaker, and the high-frequency whistling sound made also became weaker.

However, before the officers and soldiers in the command cabin had time to be happy, the torpedo penetrated the bubble curtain wall, and the high-frequency whistling sound came in through the hull again.

Zhou Yusheng's brows jumped a few times and looked at Meng Guangyang.

"The torpedo is searching for the target, not aiming at us..." Meng Guangyang paused for a moment and said loudly, "The sound of sonar strikes, the torpedo enters attack mode and is approaching."

"How many torpedoes?"

Meng Guangyang pressed the headphones tightly, and after two seconds, he said, "It's still two, it's approaching at high speed."

Zhou Yusheng's facial muscles twitched a few times and looked at Lu Chengfeng.

"The impact time is being recalculated...thirty-seven seconds..."

Because the torpedo lost its target when drilling into the bubble curtain wall. After rushing out of the bubble curtain wall, it will search for the target again along the spiral route. When the "Shark" was discovered again, the distance between the torpedo and the submarine had been widened, and the impact time was extended by more than 30 seconds.

“Where is the ‘North Carolina’?”

"One-minute direction, twelve chains, sixty-eight knots relative speed."

"Impact time."

"Sixty-three seconds." Lu Chengfeng quickly calculated the impact time of the two submarines.

"Sailing at full speed, run as fast as you can!"

Yang Yuanfan did not hesitate and immediately picked up the microphone of the telephone in the boat and gave an order to Captain Liu Haoran who was staying in the reactor compartment.

"Damn, Americans' torpedoes are indeed advanced." Zhou Yusheng sat down and said, "If we have such a good torpedo, we won't be so embarrassed."

"What should I do now?" Li Xiaoming walked up and took out a cigarette.

Although smoking is strictly prohibited in the submarine, especially in public places, Mu Haoyang did not come out to stop it, and Zhou Yusheng did not refuse Li Xiaoming's kindness.

It's almost done, who cares so much?

"Wait a minute," Zhou Yusheng lit a cigarette, took a sip, and handed it to Lu Chengfeng who was standing next to him, "We can live another half a minute, right?"

Lu Chengfeng probably won’t smoke. After taking a sip, his face turned blue.

Li Xiaoming was also generous and distributed the remaining cigarettes to others, and Mu Haoyang also distributed one.

Although Mu Haoyang doesn't smoke and is also very disgusted with others smoking, he doesn't care so much about how long he can live.
Chapter completed!