In different countries, submarines have different aliases, such as "shark". But Wen Haomao prefers the title of "sea wolf", because he has always felt that he is a wolf ambushed under the waves of the sea, a wolf who can be killed at any time and kill his prey.

"It's 80 meters!" The chief engineer was always behind the bridge, and instead of controlling the submarine, he commanded two engineers to operate the submarine.

"Keep up the depth." Wen Haomao took off the flat hat on his head that was already stained with sweat and other dirty things, and then looked at the listener on the side, "Did you find anything?" ”

"The enemy fleet, in the direction of 120 degrees, is approaching, very slowly, probably not detecting us."

"Keep a balance between the beginning and the end." The chief engineer patted the shoulder of the engineer who was responsible for balancing the head and tail rudders, and then looked at Wen Haomao, "Do we want to dive deeper?" ”

Wen Haomao shook his head slightly, and at the same time noticed that the officers and soldiers in the command cabin were staring at him. Now there was silence in the submarine, and everyone held their breath, not even daring to breathe out of the atmosphere, as if they were afraid that the sound of their heartbeat would alarm the destroyer overhead.

The submarine floats like a huge iron coffin in the water 80 meters above the surface, the two propellers are turning at the lowest speed, the diesel engine has stopped working, and now the battery is driving the motor. In an emergency dive, the battery is fully charged, which is also a point that all captains will not ignore, that is, when the submarine is sailing, the battery must be fully charged.

Wen Haomao glanced at the officers and men again, there were 54 officers and soldiers on the submarine, one of them was lying in the officer's cabin, enduring painful torture, and the only medical officer on the submarine was trying to reduce the suffering of the crew. Should I give it a shot now? There was a huge fleet not far away, but the submarine had only eight torpedoes left, and it was running out of diesel. But eight torpedoes are enough, only one torpedo is needed. It would be possible to bury a cruiser at the bottom of the sea, and the destroyer would not be able to withstand heavy torpedoes, and even an intact aircraft carrier would only need three torpedoes at most to sink it. However, these 54 officers and men have already spent nearly 80 days and nights at sea that can make anyone nervous, and they all want to return to the base early to enjoy beer and fresh fruit. Vegetables, and the beauties that will never become an outdated joke. So, should the lives of 54 officers and soldiers be risked?

"Maybe we should do something." The chief engineer was the first to say that he was the number two man on the submarine. There is no first mate on the submarine, he is the first mate.

"I don't want to regret it in the future." The second officer, who had dried his hair, shrugged his shoulders as he spoke. On a submarine, the second officer is mainly responsible for managing the crew, and sending and receiving and deciphering telegrams, similar to the electromechanical officer.

Wen Haomao nodded slightly, and then looked at the gunner.

"Eight torpedoes are enough for us to do a lot. Maybe one salvo will be enough! The chief engineer said. While wiping the wrench in his hand. The gunner on the submarine is mainly responsible for firing torpedoes, and is also responsible for regular maintenance and inspection of torpedoes and other weapons.

Finally, Wen Haomao looked at the listener. Then. The listener on the submarine is not yet an officer, but a non-commissioned officer, usually a corporal, and at most may be promoted to sergeant, and if he is lucky enough to be sent for training, then he can become the chief engineer, second officer, or gunner of another submarine. But on submarines, the position of a listener is very important. He was one of five people on the submarine who didn't need to sleep in a hot bunk, and his location was right next to the captain's bed.

After the listener didn't send any danger signals, Wen Haomao let out a sigh. "Then let's float up and take a look, and get ready to ascend to periscope depth."

"Ascend to periscope depth!" The second officer immediately gave the order.

"Ten on the first, five on the bottom, keep the speed, don't be too fast!" The chief engineer's words were soft, and the two engineers in front of him could clearly hear his commands.

The submarine began to float slowly, with a small tail roll. That is, the bow is slightly higher than the stern. When diving, the submarine's own gravity and buoyancy are the same, if there is no need to surface the sea, then the submarine will not discharge the seawater in the water tank, so there will be no buoyancy to allow the submarine to rise quickly. At this time, the submarine floats to the ground with the help of the lift generated by the head and tail elevators, which is also called dynamic floating, and in this case, the submarine will have a certain trim.

Wen Haomao stared nervously at the depth gauge, the periscope depth is 15 meters, if it is in the daytime, the pilot of the anti-submarine patrol plane can see the gray shadow of the submarine on the sea surface, but now it is night, he does not need to worry, and there is no kind of warship with a draft above 15 meters, he does not need to worry about being hit by the battleship. Plus, if he gets hit, he won't let the submarine float.

Just when the depth gauge was pointing to 40 meters, the listener suddenly shouted: "Sonar contact, enemy destroyer approaching!" ”

"Urgent dive!" Wen Hao's spear shouted out like a launch.

"The first fifteen, the last five, full speed ahead!"

The submarine shook a few times under the surface of the sea like a huge whale, and then rushed to the bottom of the sea, and the two propellers also ran at high speed, and at the same time there was some noise.

"Be quiet!" Wen Haomao felt sweat on his forehead.

"Quiet!" The second mate looked towards the passage on either side, and a group of crew members immediately held their breath, and some people caught the items that rolled off the bed.

"One-third of the speed, sail quietly!" The chief engineer also adjusted the speed of the submarine at this time.

At this time, the "crashing sound" from the anti-submarine sonar on the destroyer was already clearly audible, and there was no need for a listener to report it at all. The frequency of the "crash sound" is not very high, indicating that the destroyer is still far away from the submarine, but after hitting the submarine, these sound waves will be bounced back, and if the sonar on the destroyer is sensitive enough, he will be able to detect this slight reflected sound wave, so as to find the submarine is still several kilometers from the bottom of the sea.

Wen Haomao stared nervously at the depth gauge, the pointer had already crossed the "160" and was about to enter the yellow zone. The stated depth of the "D" submarine is 120 meters, which was previously called the "green zone", which means that the submarine will not have problems within 120 meters. The 120 to 200 meters is the "yellow zone", and the submarine can only dive to this depth if necessary, which means that the submarine may fail at this depth, be crushed by the seawater and finally die. The "red zone" is between 200 and 250 meters. This is an extremely dangerous area, with a high chance of going wrong, and if something goes wrong, the chances of survival are even smaller. After 250 meters there are no markings.

Wen Haomao believed that his submarine, in previous combat operations, he had exceeded the rated depth of 120 meters several times, and even dived to a depth of 240 meters, and the submarine still withstood the huge pressure of the seawater. But every dive towards the limit is thrilling. Especially when the pressure-resistant shell "crunchs" due to the huge pressure of the seawater, it can make everyone feel creepy, as if death is knocking on the door outside the steel shell a few centimeters behind.

The depth of the submarine continues to increase, and the frequency of the "crashing sound" of the submarine is gradually increasing. Wen Haomao knew that the others were waiting for his orders, and the chief engineer had looked at him more than once, hoping that he would stop the submarine from diving. The depth gauge has crossed the yellow zone and continues to rotate.

"Gaga...... Rattle...... Gah-"

A creepy voice rang out, and everyone raised their heads and looked towards the pipes, where officers and soldiers had already picked up the tools they had at hand. Be ready to plug pipes that are crushed by seawater.

"It's already 230."

"Be quiet." Wen Haomao gritted his teeth. If he had to choose, he would prefer to gamble with the Grim Reaper at sea rather than with the American destroyers on the sea. He looked over to the listener.

"Right above our heads." The Listener was the only one who didn't care if the submarine would be crushed into an iron quiver by the sea. "It's going away. Leaving and not finding us, damn it, yes, the Yankees didn't find us! ”

"Stop diving." Wen Haomao breathed a sigh of relief and wiped the sweat from his forehead at the same time. ", it scared me out of a cold sweat."

"What now?" After the chief engineer restored the balance of the submarine, he asked Wen Haomao.

"Wait a minute, maybe there are other destroyers." Wen Haomao took out a cigarette, he didn't smoke it, but crushed it and threw it into his mouth. Then chewed on, the most undesirable behavior on the submarine was smoking, adding a little choking smoke to the already terrible air, and it would certainly be even more unbearable. The taste of flue-cured tobacco was not good, and Wen Haomao even decided that the navy should provide the submarine forces with tobacco that they could chew, so that it would be a little more humane.

At this time, the second officer returned to the command module. "There were two valves that had problems and were blocked. It's thrilling. ”

Wen Haomao nodded, and then looked at several of the main officers. "It's strange that U.S. destroyers generally don't use sonar blindly, it just keeps us hidden. It looks like there must be big prey behind. ”

"Maybe an aircraft carrier." The gunslinger laughed first.

"We received word in the morning that the Fourth Task Force is encountering the Fifth Fleet, could this be the Fifth Fleet?" The chief engineer was much calmer.

"It should be, but we can't know now." Wen Haomao remembered the telegram, but the content of the telegram was not exhaustive, only mentioning that the Fourth Task Force and the Fifth Fleet had encountered, but did not mention that the Fifth Fleet was doing a specific sea area. "Then let's wait a little longer, maybe there are several American aircraft carriers nearby, and we have to think about how to allocate eight torpedoes!"

Several officers laughed secretly, but they didn't laugh out loud. Eight 650-mm heavy torpedoes, if used properly, are enough to finish off four aircraft carriers, and if there are still aircraft carriers that are already wounded, maybe there is a chance to finish out all the carriers of the Fifth Fleet at once!

Wen Haomao is not so greedy, he knows very well that even if there is the Fifth Fleet above his head, he only has one chance to attack, and whether he can escape the blow of the US destroyer after completing the attack is a question, but in his opinion, if he can kill the US aircraft carrier, even if it is an aircraft carrier, he will make a lot of money. The point is whether he has a chance to slip up and fire a torpedo. At the same time, it occurred to him that the Fourth Task Force might need information on the location of the Fifth Fleet, so he had to send a telegram before attacking.

Thinking of this, Wen Haomao immediately called the second officer aside and asked the second officer to prepare a telegram. Unlike other submarines, the "D" submarine has a short-wave communication antenna, and this antenna is on the periscope, so it only needs to reach the periscope depth to send out information with a short-wave radio. Shortwave stations do not operate at a distance of more than 500 nautical miles, so it is impossible for messages to be sent to the base, but they can be received by other submarines within 500 nautical miles of each other, or by warships with submarine communication codes and communication channels. If Task Force 4 were to fight the Fifth Fleet, then Task Force 4 would be within this distance, and Task Force 4 should have a radio station working on the submarine's communication channel. Of course, the most important thing is that he has to first confirm whether it is the Fifth Fleet, and if so, he has to complete both missions at the same time.

The submarine was floating in the sea more than 200 meters above the sea surface, and the red lights were constantly flashing. In this regard, the Reich Navy was the same as the German Navy, and the lights of different colors indicated that the submarine was in a different state, yellow when sailing, green when diving, and red when fighting. In this way, without the need to convey any orders, every officer and soldier on the submarine can be accurately told what state the submarine is in at this time, and the officers and men can also know what they should and should not do.

The submarine is very quiet and very hot, in order to save as much power as possible in the battery, the air conditioning has been turned off, and in order to avoid unnecessary noise, the exhaust fan has long been turned off, and when diving, the submarine is a closed space, and the exhaust fan is useless.

Wen Haomao kept wiping the sweat on his face with a towel, and looked at the listener from time to time. The enemy destroyer had gone far away, and the sound of sonar crashing had disappeared, but this did not mean that the enemy fleet had gone far. At this time, only the listener's ears can know what is going on in the outside world, which is why the listener is so important. At a time when everyone was unaware of what was going on outside, the listener became the ears of the submarine, the only person on the submarine who could know the danger.