On July 6, 2015, the Indian Navy once again created the "world's number one".

At 1:34 a.m., the Vikrant aircraft carrier was attacked by a submarine in the eastern waters of 75°12' east longitude and 7°34' north latitude, and was hit by three heavy torpedoes in a row, and sank at 2:19. The first aircraft carrier built by the Indian Navy itself became the first aircraft carrier to be sunk in the naval battle after World War II.

The unlucky "world number one".

But the disaster has just begun.

The Vikrant is about 30 kilometers north of the aircraft carrier, on the Vikramatia.

When he was woken up from the bed by the staff officer, Patel was still very angry. Hearing that the "Vicrant" was suddenly attacked and was sinking in the fire, the major general was stunned.

At 1:42, Patel came to the aircraft carrier command center.

The raging fires on the Vikrant illuminated the night sky to the south, and the sounds in the communication channel were very noisy.

Out of instinct, Patel first asked about the enemy situation.

There are no enemy warships on the nearby sea and no enemy aircraft in the air. They must be submarines. Only submarines can attack the "Vicrant".

After learning that the torpedo hit the Vikrant was not a missile, Patel immediately ordered a focus on searching the sea area ten to twenty-five thousand meters away from the Vikrant. Then, he adjusted his order and sent all anti-submarine search forces to the southern waters of the Vikrant.

Patel's response was not slow and the deployment was also very appropriate.

If a submarine uses anti-ship missiles to attack aircraft carriers, although it can launch missiles hundreds of kilometers or even hundreds of kilometers away, it is difficult to achieve the effect of a sudden attack on the ground. Anti-ship missiles are easily discovered and even shot down by air defense missiles and rapid-fire artillery. The missile ground "lethality" is not as good as torpedoes. It may also expose the whereabouts of the submarine when it breaks out of the water.

The bold and careful submarine captain will use torpedoes as their main combat weapon.

The range of torpedo ground is much shorter than that of missiles. The maximum range of the US Navy's MK48adcap type torpedo ground is only 50 kilometers. Most of the 533 mm torpedo grounds are between 20 and 40 kilometers. Because the speed of the torpedo ground is slow, the ideal attack distance of the heavy anti-ship torpedo ground is ten to twenty-five kilometers. If it is too close, the submarine is easily discovered by anti-submarine warships. If it is too far, the torpedo cannot reach the high-speed escape warships.

Theoretical analysis is simple, but the actual operation is very complicated.

Before entering high-speed attack mode, the two wake self-guided torpedoes have changed their course twice. There is no way to determine which direction the torpedo was shot from. The third acoustic self-guided torpedo is the shortest route. It is also impossible to determine the location of the submarine from its course.

Patel could only make a preliminary conclusion that the submarine was south of the "Vicrant", otherwise it would definitely not be the only one who suffered, but also the "Vicrant".

However, this judgment is too "extensive".

Even if the search range is narrowed to the south of the "Vicrant", the distance between ten and twenty-five thousand meters is 1,650 square kilometers, and the search range will increase at a speed proportional to the square of time. If you cannot make any achievements within an hour, you will never find the submarine. Even if you follow the ideal situation, that is, the submarine is lurking, and the anti-submarine forces are deployed instantly, searching in different regions, and completing this task requires five anti-submarine patrol aircraft, or twenty-one anti-submarine helicopters, or thirteen anti-submarine warships, which far exceeds the anti-submarine strength of the "Vicrant" aircraft carrier battle group and even two aircraft carrier battle groups.

In desperation, Patel not only did not carefully consider anti-submarine tactics, but also made more serious mistakes.

At that time, he first thought of Pakistan's "Agosta 90b" AIP conventional submarine.

The Pakistan Navy's submarines have always taken sneak attacks on Indian aircraft carriers as their top priority. During the Kashmir crisis last time, a Pakistani submarine quietly sneaked into the Indian aircraft carrier battle group and "attacked" the "Verat" aircraft carrier with active sonar, causing chaos in the battle group.

At 1:48, Patel sent an anti-submarine helicopter from the USS Vikramatia aircraft carrier battle group.

Then, he ordered two Bangalore-class air defense destroyers in the aircraft carrier battle group of the Vikramatia aircraft carrier to rescue the Vikramatia, and allowed four anti-submarine warships in the formation to enter the state of combat. He found the Pakistani submarine, and did not dare to be careless until the safety of the Vikramatia was guaranteed.

Patel did not realize that it was not the Pakistani submarine that attacked the Vikrant.

The "Swordfish" did not leave, and did not give up the opportunity to expand the results of the battle.

Under the cover of the sound of the hull of Vikrant, the torpedo soldiers reloaded the torpedoes for the three torpedo launchers and injected sea water. However, the sound from Vikrant also interfered with the sonar on the Swordfish.

"Only a few targets are determined in the north." Sonar became a key figure on the submarine. He circled several highlights on the screen with a watercolor pen. "These two ships are approaching us, and are likely to be the Bangalore class destroyer. Several targets in the south are the escort warships in the battle group of the aircraft carrier Vikrant, and are searching for the periphery. These less obvious targets in the north must be the warships in the battle group of the aircraft carrier Vikrant. Before the "Vicrant" was hit, Sonar detected the aircraft carrier Vikrant, and later was disturbed and lost the target."

"Have you discovered a submarine?"

The sonar shook his head. "The performance of those Indian submarines is that level. If they are near us, they will definitely be able to find it. However, it is not ruled out that there are American submarines nearby."

Hua Jianfeng nodded. What he wanted to ask was whether American submarines had been discovered.

The opportunity to expand the results of the war is right in front of you, but the danger is getting bigger and bigger.

Attacking the Vikramatia under the noses of more than a dozen Indian escort warships and more than a dozen anti-submarine helicopters will definitely take great risks. However, what is even more threatening is the "New Hampshire" that has not appeared so far.

Fight, or not?

Hua Jianfeng looked at the deputy next to him.

"The fat meat that comes to your mouth is not worth eating, but how can you eat this piece of fat meat?"

"The line-conducting anti-submarine mode, where the torpedo approaches the target at a high depth, and then changes to acoustic self-direction and wake self-direction modes." The Ordnance Commander made a suggestion. "The success rate of the attack will not be much higher, after all, we cannot determine which target is the 'Vicramatia'."

"Used passive acoustic self-direction, and select the primary target of attack in wake self-direction mode."

After the sonar said this, several officers cast surprised eyes at him.

"The tactics are mentioned in the tactical manual, but we have not practiced them before." The sonar shrugged his shoulders, making others feel very ignorant.

"That's it." Hua Jianfeng did not hesitate anymore, "set parameters for the No. 1 and No. 2 torpedo and set them to low-speed navigation mode. The No. 3 and No. 4 torpedo are set to anti-submarine self-guided mode, and fire control data are installed in advance. If we want to do it, we will do a big deal and solve the problem once and for all."

The outer covers of the torpedo tubes of No. 1 and No. 2 are opened again.

As the high-pressure water pump was started, two heavy torpedoes were pushed out of the launch tube.

The two Bangalore-class destroyers who came from the battle group of the aircraft carrier "Vicramatia" had a speed of twenty-eight knots. The huge self-noise covered the sound of the torpedoes, and the shell sonar on the destroyer turned into the ears of the deaf.

Danger is quietly approaching the USS Vikramatia aircraft carrier.

Fourteen minutes later, the two torpedoes will lose contact with the submarine and continue to move forward under the control of the inertial navigation system. In another six minutes, the self-guided system on the torpedo will discover the "Vicramatia" aircraft carrier and launch the final sprint.

A dense explosion sound came from a distance, and it must be the anti-submarine warships launching rocket deep bombs.

Hua Jianfeng's brow jumped slightly, and an ominous premonition arose from the bottom of his heart.

Deep bomb explosions will produce noise and interfere with the sonar on warships. Indian warships will not throw deep-water bombs littered with no worries.

Could it be that Indian warships are playing "Whaling Ship" again?

Hua Jianfeng was thinking that a sound that he was so familiar with came into the boat.

"Attack sonar slap!" Hua Jianfeng was shocked and immediately said, "Cut off the torpedo wire, 15 of the head, 15 of the tail, 15 of the tail, and 15 of the full power propulsion."

The "Swordfish" is like a frightened beast, burrowing into the vast deep sea.

"mk48adcap torpedo." Le Jiacheng's reaction was faster, "Damn it, American submarine, it must be that the sound we made when we launched the torpedo was discovered by American submarines."

Hua Jianfeng nodded. "Calculate the torpedo hit time."

"One minute and twenty-seven seconds." Le Jiacheng took out his stopwatch. Although the time was displayed on the computer screen, he still believed in mechanical equipment.

"The left full rudder, the interference bomb is ready."

"The jamming bomb is ready." The ordnance captain rushed to the side of the control platform and placed his finger on the button to fire the jamming bomb. "The jamming bomb is ready."

"Listen to my orders. The torpedo hits the time."

"One minute and five seconds."

Hua Jianfeng was squirming slightly, as if he was whispering something.

"Fifty seconds!" Le Jiacheng looked at Hua Jianfeng.

"One-third left rudder. Depth?"

"Thirty-five seconds!" Le Jiacheng wiped off the sweat from his forehead. "The depth is 488, and it continues to increase."

"Full the beginning and end, keep the speed!"

"Twenty seconds!" Le Jiacheng's voice began to tremble.

"Continue to move forward and keep your speed." Hua Jianfeng looked at the Arsenal with a serious expression, "Don't be anxious, listen to my orders."

"Fifteen seconds!" Le Jiacheng's hands trembled.

All the officers in the command center looked at Hua Jianfeng, and their lives were in the hands of the captain.

"Ten seconds!" Le Jiacheng almost shouted out loud.

"Jumping bomb..."

"Eight seconds..." Le Jiacheng closed his eyes, leaving only the last eight seconds of his life.

"emission!"

When pressing the button to fire the jamming bomb, the ordnance captain almost used all his strength.

"The right helm is full," Hua Jianfeng stood up, "Twenty at the beginning and the tail cabin is empty, keep quiet!"

In the "wall" formed by bubbles, the "Swordfish" dives at the extreme speed. The interference bomb with characteristic noise very similar to the "Swordfish" creates a large number of bubbles and floats to the sea at a rapid speed.

"Five hundred and twenty meters...580 meters...640 meters..." Looking at the numbers on the depth table, Le Jiacheng felt that one foot had stepped into the gate of hell.

The hull made a "crunch" sound, which was the sound of the pressure-resistant shell deforming under seawater squeeze.

"The beginning and the end level, one tenth of the power!" Hua Jianfeng glanced at everyone, "Silent, keep it quiet."

The slap sound from the torpedo disappeared, but the danger did not pass. mk48acdap is one of the most advanced torpedoes in the world. After losing the target, it will automatically switch to passive working mode and search for the target again. As long as the fuel on the torpedo is used up, it will not stop.

The submarine was silent, and the officers and soldiers didn't even dare to show their anger.

The "Sword Fish" stands at the Gate of Hell, and there is the bottomless abyss in front of it.
Chapter completed!