Chapter 34 The sneak attack succeeded
The red light began to flash, and a silent battle alarm sounded.
After turning sideways, a sailor who is heading to the engine cabin and climbs the three-step stairs, Hua Jianfeng walked into the command center.
"Five first, move slowly, control the speed." After patting the helmsman's shoulder, Le Jiacheng nodded to Hua Jianfeng and said, "I just confirmed the target identity and it is the aircraft carrier 'Vicrant'."
After handing the hat to the captain standing by the door, Hua Jianfeng walked to the sonar console.
"Origin 315, distance 35, target heading 105, speed 24." The sonar seemed very excited. "Captain, we caught a big fish."
"Good job. Have you found the 'Vicramatia'?"
The sonar shook his head and said, "Only the 'Vicrant' was found. In addition, there are a large number of noise sources in the direction of 345, with a distance of more than 60 kilometers, and the identity cannot be identified."
"It is very likely that it is the 'Vicramatia' aircraft carrier battle group." Le Jiacheng added.
Hua Jianfeng nodded and signaled the sonar to display the information on the large screen of the fire control computer.
Because the submarine is in combat and may encounter Indian aircraft carrier battle groups at any time, before reaching the ambushing sea, the Swordfish retracts the towed sonar and uses only the shell sonar and the spherical sonar at the bow to search for the target. In this case, the passive detection ability of the Swordfish is greatly reduced.
A dense spot of light appeared on the large LCD display on the firepower console.
The slow-moving green light spot is a sea warship. The fast-moving yellow light spot is an anti-submarine aircraft. There is no red light spot that represents the submarine. The noise source in the 345-degree direction is represented by a huge green light spot, indicating that the number and properties of the noise source cannot be accurately calculated.
The Vikrant aircraft carrier battle group adopts a loose anti-submarine formation. There are twelve anti-submarine aircraft in the air.
"We are in the best attack position. Now launch torpedoes. The chances of escape are over 80%.
The voice of Le Jiacheng was very low, but the command center was so big that all the officers around him heard it.
Now, isn't it too urgent?
Hua Jianfeng glanced at everyone and his eyes returned to the big screen.
The "Swordfish" is located directly southeast of the "Vicrant", 35,000 meters away.
The shortest range of the 533mm heavy torpedo is 45 kilometers. Two torpedoes can severely damage the Vikrant, and three torpedoes may sink the Vikrant. Can the 35 kilometers distance allow the Swordfish to escape unscathed?
"Torpedo 1, 2, and 3 enters fire control data, prepare..."
"Captain, have contact."
Hua Jianfeng was startled and immediately waved his hand to stop Le Jiacheng from conveying the order.
"Anti-submarine patrol aircraft, with a position of 305 and a distance of 7, are moving forward at high speed ahead of me."
When the sonar long reports the relevant data, a high-speed moving red light spot appeared on the screen. The computer analysis result was: p-8i anti-submarine patrol aircraft.
"Lao Hua..." Le Jiacheng suddenly became nervous.
Hua Jianfeng pressed his hand and did not let Le Jiacheng continue to say anything.
Very unstandard supportive anti-submarine tactics, anti-submarine patrol aircraft only patrol 35,000 meters in front of the aircraft carrier battle group. According to standard tactics, anti-submarine patrol aircraft should expand the search range to more than 150,000 meters to prevent submarines from attacking the aircraft carrier battle group with anti-ship missiles.
This cannot be blamed on the Indian Navy, which has only a few p-8i, and the Octades Strait is not spacious.
In less than five minutes, the P-8i flew away about 8,000 meters northeast of the Swordfish. Perhaps too many sonar buoys were wasted in the Bay of Bengal before, or just came to do it, the anti-submarine patrol aircraft did not strictly follow tactical norms, and at most one sonar buoy was deployed every twenty kilometers.
As the red light spot disappeared from the lower right corner of the screen, everyone breathed a sigh of relief, and Le Jiacheng secretly wiped away the sweat from his forehead.
What Hua Jianfeng saw was not danger, but opportunity.
The anti-submarine focus of the Indian aircraft carrier battle group is on the periphery, not on the inside of the formation. If it can enter the formation, the "Swordfish" can not only launch an unexpected attack, but also avoid the enemy's anti-submarine power. The premise is that the "Swordfish" must slip in without being discovered.
"The first is five, the last is five, the depth is 540, the course is 45, and the speed is 6." Hua Jianfeng did not hesitate anymore, "I want to learn from Sun Wuzi and go to the white bone spirit's belly to make a good move."
"Enter the inner layer of the battle group?" Le Jiacheng was secretly shocked. Hua Jianfeng was too brave.
"The most dangerous place is the safest place." Hua Jianfeng knocked on the panel of the LCD screen. "The Indian aircraft carrier battle group uses a commonly used anti-submarine formation. Six escort warships are scattered in front of the aircraft carrier and on both sides. The twelve anti-submarine helicopters are all concentrated in the forty-five-degree sectors directly in front of the route, and cannot monitor other directions. We rushed in from the side and attacked the "Vicrant" at the closest distance."
"Then they were besieged by six escort warships."
Hua Jianfeng shook his head with a smile. "After being attacked, anti-submarine warships and anti-submarine helicopters first searched the nearby sea area of ten to twenty-five thousand meters, and the anti-submarine network that originally frequently leaked was even looser."
Le Jiacheng thought for a while and said, "After successfully attacking, hide under the 'Vicrant'?"
"Those who know me will be successful." Hua Jianfeng laughed.
Le Jiacheng stopped saying anything and stood in the pilot position himself.
Hua Jianfeng is playing with fire, but this fire is worth playing.
After reaching a depth of 540 meters, the "Swordfish" increased its speed to six knots.
As long as the Vikrant does not suddenly turn or change speed, the distance between the Swordfish and Vikrant will be shortened to about ten kilometers in 54 minutes, and it will be located directly southwest of the Vikrant.
A distance of ten thousand meters is definitely the ultimate distance.
Forty minutes later, Hua Jianfeng asked the chief of the army to inject all four torpedo launch tubes into sea water.
An attack aircraft carrier is different from an attack submarine. A heavy torpedo can sink a submarine. To sink a medium-sized aircraft carrier with a displacement of more than 40,000 tons, at least three heavy torpedoes are required.
"Five in the first and five in the tail, rise to the attack depth and control the speed!"
Because the high-pressure water pump is used to launch torpedoes, the maximum torpedo launch depth of the Swordfish is 240 meters, so torpedoes cannot be used at the full navigation depth.
"Depth 240." After saying that, Le Jiacheng looked at Hua Jianfeng.
"The No. 1 and No. 2 are set to wake self-guided attack mode, while the No. 3 torpedo adopts line-guided attack mode." When Hua Jianfeng issued the order, his tone was very calm.
"The attack parameters have been installed."
"Open the outer cover of the torpedo launch tube, and launch the No. 1 and No. 2!"
Two "bang" sounds, two torpedoes rushed out of the torpedo launch tube.
"Torpedo No. 3 launch."
With a "bang", the third torpedo also shot out.
Hua Jianfeng's eyes fell on the screen of the fire control computer.
The No. 1 and No. 2 torpedoes adopt self-guided attack mode and do not occupy the submarine's fire control channel. The No. 3 torpedoes adopt line-guided attack mode and occupy one fire control channel. The other fire control channel is left to the No. 4 torpedo staying in the torpedo launch tube.
After the two self-guided torpedoes leave the submarine, they first search and advance at a low speed under the control of the inertial guidance system.
The principle of wake guidance is not complicated. When any ship sails, it will form a wake field with a length of thousands to tens of kilometers, composed of physical fields such as force fields, electromagnetic fields, etc. Relying on related detection equipment and automatic control equipment, the torpedo can chase the ship along the wake field. Because the wake field left by the surface ship is more obvious, the wake guided torpedo is generally used to attack the surface ship.
About six minutes later, two torpedoes detected the wake field of the "Vicrant" and automatically switched to high-speed attack mode.
After the two wakes of self-guided torpedo accelerated, the sonar on the Vikrant immediately received the noise from the torpedo. At this time, the third torpedo also approached the Vikrant aircraft carrier under the control of the submarine.
"Captain, turn the target right."
Hua Jianfeng and Le Jiacheng were both stunned and then smiled.
God is really helping. When avoiding the torpedo, the Vikrant actually chose to turn right instead of left. Perhaps in order to avoid the Vikramatia aircraft carrier battle group in the north, the Vikrant chose to turn south.
"The third torpedo changed to acoustic self-guided mode, cut off the conductor, turn right, speed 12, and calculate the torpedo hit time."
"Two minutes and twenty seconds."
"Speed 18, two-thirds of the right rudder." Hua Jianfeng did not rely on fire control computers, but calculated the best avoidance route based on his brain power.
"Captain, the target starts to accelerate."
"The torpedo hit time is two minutes and thirty seconds." Le Jiacheng glanced at Hua Jianfeng and started the timing again.
"Stay speed and fill the helm with the right." Hua Jianfeng calculated while regularly hitting the countertop of the fire console.
We must take the opportunity to get close to the "Vicrant". If the "Vicrant" does not sink immediately, the "Swordfish" can hide under the belly of the aircraft carrier. If the "Vicrant" sinks quickly, the Indian warships will first rescue the officers and soldiers who fell into the water on the sea and will not immediately search for the waters near the "Vicrant" sink point.
The most dangerous place is the safest place.
Suddenly, a few violent explosions came, and the officers and soldiers in the boat heard it without the need for sonar to report.
"Deep water bomb!" Le Jiacheng showed a look of surprise.
"Fifteenth head, tenth tail, speed 27th, one third of the right rudder." Hua Jianfeng quickly issued a new order, and then said, "Indian A Sangou is desperate to jump over the wall. They are using deep water bombs to intercept torpedoes."
Le Jiacheng smiled and shook his head. He had just thought of this situation.
Indian warships are equipped with rocket-type deep bomb launchers, even aircraft carriers are no exception. However, the decoration of this weapon is far more important than actual combat significance.
The explosions became increasingly dense, indicating that the officers and soldiers on the Indian warships were already in a state of turmoil.
A dull explosion sounded, followed by another. After a while, the third violent explosion sounded. Soon, the explosion of the deep water bomb also dissipated.
"Captain, the 'Vicrant' is above our heads."
"Five in the head, five in the tail, and speed 6." After saying that, Hua Jianfeng looked at the depth chart. "540", which happened to reach the maximum safe navigation depth of the "Swordfish".
The sound of the hull breaking and the keel breaking came from the top of the head.
The torpedo directly attacked the underwater part of the battleship, and all three torpedoes exploded under the keel.
After being hit by three heavy torpedoes in a row, let alone the Indian Navy's medium-sized aircraft carrier, even the US Navy's super aircraft carrier may not be able to bear it.
Chapter completed!