Quiet, breathless quiet

The officers and soldiers in the torpedo cabin were waiting for the captain to issue the order to launch the torpedo. The officers and soldiers in the command center all turned their attention to Hua Jianfeng, who had never disappointed them.

Hua Jianfeng didn't speak or make a decision

It's not that he is timid, but that the situation in front of him cannot make a decision immediately

The noise emitted by the US submarine suddenly "disappeared", indicating that the speed of the 2 "Virginia" has been reduced to below 8, or even lower. When sailing at 4 knots, the noise level of the "Virginia" is below 94 decibels. The detection distance of the passive sonar on the side of the "Swordfish" is within 35 kilometers. If Virginia controls the speed below 2, the passive sonar on the side of the "Swordfish" cannot even detect the sound it makes.

The US military captain is very cunning, very cunning!

At this time, there are only two ways to choose from Hua Jianfeng. One is to release drag-and-drop sonar, and the other is to use active sonar

Neither option is ideal when releasing drag-and-drop sonar, it will make a loud noise, exposing the whereabouts of the Swordfish; using active sonar will not only expose the whereabouts of the Swordfish, but also give the opponent a reason to attack.

In a blink of an eye, Hua Jianfeng thought about the experience of his encounter with the US submarine

The US submarine made a big noise, intending to lure Chinese submarines across the Okinawa Trough and enter the Japanese territorial waters to find that Chinese submarines were not fooled, but also copied them according to the rules. After the bait was released, the US submarines took the initiative to rush to the war zone at a faster speed, luring Chinese submarines to wait for opportunities near the Okinawa Trough to enter the war zone. When the US submarines dropped their speed by 4 or even below 2 knots, waiting for Chinese submarines to provoke them on their own initiative.

At this point, it depends on both sides' patience

"Cancel the attack command" Hua Jianfeng took a deep breath "The speed will be as low as 2 and closely monitor the surrounding situation"

Le Jiacheng wiped off the sweat from his forehead and secretly breathed a sigh of relief.

"Dogdashi is actually more patient than me!" Hua Jianfeng said with a cold smile, "Now it depends on who has stronger self-control and can withstand the temptation in front of him."

Le Jiacheng nodded and said, "We must not lose to the Americans."

Hua Jianfeng smiled and said, "What are you worried about? We killed six years ago..."

When I saw the captain, I opened my eyes widened

Hua Jianfeng immediately reacted. Several officers in the command center did not participate in the secret operation 6 years ago. He reiterated: "Last year, we almost made American submarines a scapegoat a week ago. We also greeted the 18th generation of the American submarines who wanted to find fault. The US military is more active than us. We will stay here and wait for 4093 to clean up the Japanese fleet and see what the Americans do."

"Maybe, we should drink a few beers and spend our time slowly"

Hua Jianfeng smiled and said, "Now is not the time. After reading the jokes from the US military, it is not too late to celebrate again."

"Captain, there's a noise!"

"I just said, Americans are more active than us"

"It's not a US submarine, direction 25, distance..." Sonar paused violently and said in surprise, "Distance 7, the computer analysis result is the sound of water injection of torpedo tubes!"

Hua Jianfeng almost jumped up, and Le Jiacheng was stunned for a moment

A submarine is pouring water into the torpedo launcher at 25 degrees northeastwards 7 kilometers away!

"Fifteenth head, fifteenth head, fifteenth head, all..." Hua Jianfeng stopped suddenly, hesitated for a moment, and said, "Wait, what is the direction?"

"25 degrees, northeast direction, distance of 7,000 meters" sonar length reported complete data

Hua Jianfeng quickly glanced at the war zone chart displayed on the tactical screen, and then breathed a sigh of relief.

Seeing the situation displayed on the screen, Le Jiacheng was shocked and said, "Our submarine?"

Hua Jianfeng nodded, "It is indeed not a US submarine. If it is a US submarine, 2'Virginia' should not only not stay outside the war zone, but also enter the war zone immediately, luring us to fire first, expose our whereabouts, and create reasons and opportunities for the third US submarine to attack us."

"The captain, there is a noise again, very weak"

"Noise characteristics for 095"

Sonar immediately adjusts the 095 noise feature from the fire control computer

Before the computer could draw a conclusion, a dull sound came, and all the officers and soldiers in the "Sword Fish" heard it.

"Active sonar!" Le Jiacheng quickly reacted, "not aiming at us."

"Then aim at the US submarine." Hua Jianfeng gritted his teeth, "The full-speed inertia-added sound self-guided mode of torpedo No. 1 and 3, and the full-speed line-guided mode of torpedo No. 24, ready to enter fire control data."

“Do you want to use active sonar?”

"No, use third-party sonar echoes" Hua Jianfeng thought of the tactics as quickly as possible. "Suppose the No. 1 and No. 2 advance at a speed of 2, and the course has not changed. After determining the target position, solve the fire control parameters."

Le Jiacheng replaced the gun officer and personally took the knife

On the deep-sea battlefield, the submarine uses active sonar to directly illuminate the opponent, which is equivalent to illuminating the opponent with a flashlight in a dark room without any light. In addition to holding the flashlight, other "people" staying in the room can also see the illuminated "people" differently, when the submarine uses third-party sound waves to discover the opponent, it can only measure the orientation and approximate distance, and cannot obtain the accurate distance parameters.

There is no need to obtain the accurate distance of the target in actual combat. When the anti-submarine torpedo approaches the target, it will be

Self-guided attack mode

A few dozen seconds passed quickly. When the passive sonar of the "Swordfish" received the reflected sound wave, the fire control computer automatically solved the fire control parameters.

The +95 that suddenly appeared was the "Wide Area Search" mode, and the sound wave coverage was very large

The reflected sound waves are very complex. There are both US submarines and submarine mountains, as well as ocean currents that must distinguish useful signals from them and strip the interference signals to input correct fire control data to the torpedo. The calculation amount is very large. The "Swordfish" fire control computer takes more than ten seconds to complete all the calculation work.

Time passed minute by minute, Hua Jianfeng and Le Jia were staring at the tactical screen in a hurry

"Captain, the target appears!"

Hua Jianfeng immediately looked at the sonar

"Target No. 1 is speeding 12, and it is still accelerating the target No. 2 and turning close to Target No. 1, with a speed exceeding 14"

Le Jiacheng was shocked and looked at Hua Jianfeng in confusion.

"The Americans are ready to fight back." Hua Jianfeng looked at the watch, "Turn to 90 degrees, maintain the speed depth, enter new target information, and obtain the fire control data as soon as possible."

Le Jiacheng just got busy, and the second sound came from outside

Not the sound of the sonar, but the sound of the sound from the east

"American submarines are ready to attack?"

Hua Jianfeng nodded, "The No. 24 torpedo launch tube opens the front cover, launches first and then guides the mode."

"The front cover of the No. 24 torpedo launcher is open and can be launched at any time."

"Original outbound pipe, slow mode" Hua Jianfeng hesitated for a moment and said: "2 torpedo launches...4 torpedo launches!"

Within 10 seconds, 2 torpedoes sailed out of the Swordfish's torpedo tube

"Fire Control Parameters"

"The target position No. 1 is 85 at a distance of 42 and 220 at a speed of 18, and the target position of 2 is 100 at a distance of 44 and 210 at a speed of 15, and the torpedo fire control system is being inputted."

Hua Jianfeng nodded and said, "The 3 torpedo has been changed to line guide mode, locking 2 targets, and opening the torpedo launch front cover tube."

"The front cover of the 3 torpedo launcher is opened"

"Input fire control parameters, self-navigation pipe, line guide slow mode"

With a slight sound, the "Swordfish" shot out the third torpedo

From receiving the sonar wave from the US submarine to the third torpedo out of the tube, it was less than 2 minutes before and after.

"Captain, 3 targets launch torpedo, 2 targets, 70 targets, 1 enemy boat"

Hua Jianfeng frowned slightly 095 The reaction speed is too slow

"Captain, 34th torpedo, speed 70, orientation 15, distance 12, shooting towards 2 enemy boats"

Le Jiacheng was stunned and said, "Du Xinghua and Liu Haifeng are both here!"

"How is it, I just said that they won't miss this good show." Hua Jianfeng smiled coldly, "calculate the time of the torpedo hit, we can't fall behind Du Xinghua and Liu Haifeng."

Le Jiacheng nodded and immediately picked up the stopwatch to chronograph

"Captain, enemy boat No. 1 fired torpedo, 2, and shot at target No. 4 at 65"

Hua Jianfeng's brow jumped a few times, then looked at his watch

"2 enemy boats turn, launch torpedoes, 2, and 65-speed toward target No. 3"

"The enemy boat hits the time!" Hua Jianfeng immediately looked at Le Jiacheng and looked at him.

"18 points and 17 points" Le Jiacheng didn't use a stopwatch and directly calculated the answer, "It's too far, you can escape by turning within 09510 minutes."

Hua Jianfeng nodded, "Then wait, Du Xinghua and Liu Haifeng are not brave but unscheming people."

"U.S. submarines will also turn to escape."

"Manually control the torpedo" Hua Jianfeng took two steps away and gave Le Jiacheng aside. "Suppose the US submarine turns to escape after 8 minutes and resets the route for the torpedo."

"Intercept?"

Hua Jianfeng nodded, "The distance is too far, both sides have enough time to escape Du Xinghua and Liu Haifeng cannot get the results. Whether they can kill the American submarine depends on our three torpedoes."

Le Jiacheng knew Hua Jianfeng's intention very well

The captain of the US submarine will definitely estimate the attack distance of the heavy electric torpedo at its maximum speed, determine the time of steering escape, and ensure the attack range of escape from the torpedo. The "Swordfish" launched the 3 torpedoes are slower, not only have a longer range, but are not easily discovered. Wait until the US submarine avoids the 2095 attack, and then turn the approaching 3 torpedoes into all U|unexpected results.

"Swordfish" once again plays the role of "Shadow Killer"

"Captain, the US submarine is steering and accelerating torpedoes"

Hua Jianfeng's brow jumped a few times and then the US submarine turned.

The submarine must cut off the wire connecting the torpedo. The torpedo enters autonomous attack mode in advance, and the hit rate will inevitably be greatly reduced.

“Targets 3 and 4 accelerate”

"Damn it, I'm very brave!" Hua Jianfeng murmured in a low voice, "The course 95-deep 240-speed 184-speed 184-degree torpedo is ready for launch."

At this time, the US submarine was facing the "Swordfish" back, and the detection ability of the passive sonar was greatly reduced.
Chapter completed!