The U-92 submarine docked at a berth in Kiel Military Harbour, and Captain Hafs and his men eagerly landed on land. He has been running at sea for two months straight. Under normal conditions, it is impossible for a submarine of this size to continue fighting at sea for so long, because no submarine has such a large self-sustaining power. However, the cow submarines played a key role, constantly bringing food, fresh water, fuel, weapons, and various spare parts for the U-92's maintenance. At the same time, the almost white-hot competition for the first place in the sinking list also made the morale of the sailors above the U-92 high. This led to their miraculous persistence at sea for two whole months.

However, after all, people are not iron, and two months of high-intensity combat made the officers and men on the U-92 exhausted to an extreme. Moreover, even the iron-clad U-92 submarine began to constantly have various mechanical problems, and if you don't go back, it's absolutely impossible.

After Hafs went ashore, he finished some formalities and went straight home. He and his crew were given half a month's vacation, and then they were going to sea again. So, they must enjoy this wonderful time.

"Boss, come with us for a drink, and find another girl, Lele." At the barracks gate, a sailor shouted at Captain Hafs.

"Ah, go play by yourselves, I'm going to go home and have a look first." Hafs smiled at the sailors and said this.

"That is, the leader is a person with a wife, so he naturally has to hurry home to accompany his wife at this time." A sailor shouted with envy.

"Alas, the leader would have given up the entire forest for a leaf. Ah, the lovely barmaid, my brother is here......" Another sailor let out this wail that he could not eat grapes and said that grapes were sour.

"Boss, hurry up and go, don't listen to these bunch of nonsense." Another sailor waved his hand violently in a look of righteous indignation, then turned and shouted at the sailors, "Don't think that you can fool the devil too much, don't you just want the leader to be driven to the balcony for the night?" You guys, you really have no conscience, how did I know a bunch of villains like you? ”

Captain Hafs shook his head and smiled wryly, but he didn't plan to deal with these guys, if he really wanted to mess with these guys, then he would fall for them. And in case, if it was too late to go back, Jenny might really not be very happy.

So Captain Hafs ignored the gang and walked straight to a nearby bus stop. There is a bus to the train station.

Due to the lack of fuel, there are not many cars on the streets these days. Nowadays, almost all fuel is allocated to the army, and buses still get a little fuel. However, the number of departures per day has been greatly reduced, which also makes the buses extra crowded, but this is not too much of a problem for Captain Hafs, who is in a hurry to get home......

Half a month's vacation passed quickly, and in a blink of an eye it was time to return to the troops, and Hafs got on the train after kissing his wife goodbye on the platform. On the train he quickly found his place, he put his luggage away and sat down in his seat.

Next to him sat a young man, reading a book in his hand. Seeing him sitting next to him, he put down his book and looked at his captain's uniform. And then to say to him: "Hello, you are an officer in the Navy?" ”

"Ah, yes." Hafs replied.

"Is it from the submarine forces?" The young man asked again.

"What are you asking all this for?" Hauffs was alert.

"Ah, I'm just curious, because now our submarine heroes are advertised in newspapers and books." The lad explained, "And I was reading a novel about submarine warfare just now. ”

In order to avoid being taken for a spy, the young man also handed the novel in his hand to Hafs to read.

"The book is said to be based on Captain Hafs and Captain Elson." The lad added.

Captain Elson is officially the main rival of Haphes's current competition on the sinking list, and this book is actually based on himself and Captain Elson, which makes Hafs interested, after all, even men have vanity.

"Ah, can you lend me this book?" Hauffs said.

"That's fine." The young man said, "I've already read it anyway, and I have other books to read." ”

During the long journey, reading books or something is also a good way to pass the time, and Hafs looked at the novel. To be honest, the writing of this novel is not too good, and certainly not very bad, but the author of this novel obviously still has some understanding of submarines, although there are still a little common sense errors in the text, but it is much better than those newspapers, well, when Hafs was at home, he saw Jenny's collection of various newspapers about the reports with him, and some of them were completely relying on the reporter's brain hole when describing submarine warfare. For example, he wrote that his submarine tracked the British fleet under the sea for three days and three nights or something. However, at the speed of the submarine under water, it is simply impossible to keep up with the fleet, let alone track the fleet for three days and three nights. Even more than a hundred years later, only nuclear-powered submarines will be able to do this. Of course, more than 100 years later, newspapers will still publicize unreliable news such as the fact that the conventional submarine of Ni Cooji has been tracking the surface fleet of the Chitu Country for 1,400 kilometers. (Because the average speed of the surface fleet is faster than the maximum speed of conventional submarines, which can only travel at maximum speed for about an hour.) ）

And the author of this book obviously knows more about submarine warfare, and many places are much more realistic. Of course, the author of this book still has a lot of brain holes, at least in the eyes of ordinary people. The book depicts that later, the British did their best to build a large number of destroyers and put all the merchant ships into the escort formation, so the submarine combat encountered great difficulties, many submarine heroes died in the battle with the escort formation, and the exchange ratio began to become unfavorable to Germany. At this time, Captain Elson came up with a completely new combat plan known as the "wolf pack tactic".

According to this tactic, submarines no longer fight as lone wolves, they cooperate with each other like wolves, and when a submarine discovers a merchant fleet covered by an escort formation, it no longer immediately attacks alone, but sends information such as the location of the merchant fleet and its direction to the submarine combat command center that commands submarine operations through radio. The command center radioed the submarines located in front of the direction of the merchant fleet, gathered them, set up an ambush circle in front of the merchant fleet, and then ambushed the merchant fleet at night.

In the novel, using the collective strength, the wolves continue to defeat the escort formations, sinking more and more merchant ships, so that the British gradually suffocate as if they were wrapped around their necks, and the Germans win the final victory.

Although in this description, there are still a lot of hard injuries. For example, the author does not know that the British already have active sonar, which is able to detect submarines under water quite accurately. And this technology also had a great impact on the tactics of submarines. However, the basic spirit of his idea is still good, and as for active sonar, Hafs felt that during his night attack on the British merchant fleet, he used to surface submarines at night as if they were fish. The tactics used by the mineboats are particularly suitable for this kind of wolf pack tactics.

"Can you sell me this book? It's a bit interesting and inspiring to me. Hafs said to the lad.

"Huh? Would you like this book? You're a submarine officer, right? If yes, then I'll give it to you. The lad replied.

……

Sir Woodgate is attending the launching of the hundredth Sherlock-class merchant ship ordered by Britain from the United States. The astonishing speed of construction of the Sherlock-class merchant ships made the British side particularly satisfied, because of the continuous launch of the Sherlock-class, although the British merchant ships are still being sunk, but because of the amazing construction speed of the Sherlock-class, the number of merchant ships in the hands of the British is still balanced. So that the empire is not in danger of overturning in the short term. And Woodgaard was also commended by the British side for his contribution to this matter. This made Sir Woodgard feel exceptionally good.

"Sir Woodgair, Lady Woodgaid, it's time to smash champagne." A staff member came over and said to Sir Woodgate and his wife.

Smashing champagne is an old habit when a ship is launched. When a boat is built, a bottle of champagne is usually smashed on the bow of the boat by a noble lady, and the boat slides down the slipway into the water. The most important task of the launching ceremony of the hundredth Sherlock-class cargo ship was to smash champagne to Lady Woodgad

"Honey, let's go." Sir Woodgad said to his wife.

"Okay, dear." Mrs. Woodgard replied, "It's just that I've never done it, and I don't know what to do." ”

"Ah, Eliza, it's easy, you just have to throw the bottle at the bow of the boat. Don't worry, it doesn't require any technology, everybody does a good job. Sir Woodgate said to his wife.

At this time, the two of them had already walked to the high platform where the champagne was smashed under the guidance of the staff. A staff member handed a large bottle of champagne to Mrs. Woodgard. Mrs. Woodgate held the bottle of champagne up, and then glanced at her husband, who she saw smiling at him. So Mrs. Woodgate threw the bottle of champagne towards the bow of the ship with all her might......