Bismarck

Where is my sister ship?

"Bismarck, what's wrong with you?" The captain came out and asked me, "You have something else to do later, remember to check the hull first, and report any wear and tear as soon as possible."

"Yes, I understand." I nodded. "Captain, let me ask you a question--" I pointed my finger and he looked in the direction. "What is that place?"

"Hmm? That?" The captain looked at it and smiled, "That's the Wilhelm Shipyard. Oh, and Tirpitz is right there."

"So that's it..." I murmured. No wonder I felt this familiar throbbing, a feeling I had never experienced before.

Could it be that there is something wrong with Tirpitz? For example... um? KanColle?

Regardless, I should go check it out.

"What do you mean, what do you know?" the captain asked in confusion.

"Well~ it's okay, I just said it casually." I came out of my deep thoughts and replied with a smile, "I'll go check it out now."

"Okay, remember to be careful"

"no problem!"

After the general cleaning and cleaning of the ship's surface, the surface ship's crew began to rest, some took holidays, some went ashore. Compared with their happy life, the poor submarine officers and soldiers could not expect much, they still needed to get those training torpedoes ashore overnight, ready to dissect them tomorrow...

This matter could not be delayed, and the next morning, after the people from Berlin and the factory engineers arrived, a criticism meeting on torpedo reliability was held in a workshop at the shore support base.

As users and witnesses of the exercise, the captains under Dönitz, the torpedo engineer at the submarine base, Rear Admiral Bonte and the captain of Z7, and the person in charge of the exercise director group, that is, the captain and the director group leader on Z7 at the time, also attended the meeting. I was free and followed along as a secretary (wait, wait, what the hell is a secretary ship!?!?)

The four torpedoes that had problems during the previous exercise were salvaged and now placed aside. The captain had the highest rank among all the people present and was the head of the director team, so he had to be the one to hold this meeting.

The captain glanced at the people surrounding the torpedo. A conference table and chairs were temporarily set up in the spacious workshop, and the fish were placed not far away.

Although I know they won't explode, I'm still scared.

"Well, let's get started." The captain glanced at Dönitz, who nodded slightly. "Let the submarine commander, Major General Dönitz, briefly state the problem first!"

"......According to the records of the troops' use, all torpedoes currently have two major problems: the first problem is that the fuze is unreliable. Among them, the impact fuze has a high probability of misfiring when it hits the target head-on, but it may explode when it is at a relatively small angle and just passes by the enemy; the magnetic fuze either explodes early or not, and has never exploded normally even if it is operated according to the operating specifications of the torpedo manual and the submarine combat regulations... The current solution to the fuze problem is to use the old impact fuze again. According to the current usage records, the old fuze is more reliable in most cases..."

At the round table in the center of the meeting, a report on the use of torpedoes was being read out in a serious manner. This was a summary of the findings of the various submarine captains during use, and Dönitz had his men draft it overnight. The captain sat upright beside him, and the officers and engineers of the Navy Department did not dare to relax at all. On the contrary, I was sitting behind the captain and seemed particularly bored, so out of boredom I simply released my mental power to see what the structure of the torpedo looked like.

While listening to Dönitz's description, I looked at the fuze structure of the torpedo head. The various complex lever cranks made my eyes dizzy. I was very curious why a simple impact fuze was designed to be so complicated. According to Dönitz, the old-fashioned fuzes with much simpler structures basically never had such problems. In my opinion, the simpler things are, the more reliable they are, and there will not be any major mistakes. Just like during the Vietnam War, the Western gun king M16 and the Eastern AK47 were compared. The American weapons were precise, but they often broke down in the humid rainforest, and they were not as strong and durable as the AK47. The AK47 was rough, the parts were easy to disassemble, and the maintenance was easy. Later, many American soldiers even gave up their M16s and switched to the opponent's AK.

This is a good example, but it's a pity they don't seem to know it yet.

On the stage, Dönitz continued to read the usage records:

"The second problem, and the most serious one, is the depth setting of torpedoes. According to the current usage records, 60% of the torpedoes often drill towards the seabed inexplicably after being launched. The depth setting of the depth setting device is completely useless! They are completely threatening when passing through the bottom of the enemy ship! Although some captains set the depth of torpedoes to zero during use, in fact, the actual depth of the torpedoes is often below six feet (1.83 meters, 12 inches is 1 foot) underwater. Even so, for large warships, such as battleships, aircraft carriers and heavy cruisers, this position is also the area where their main armor is located, and it is close to the water surface. The shock wave after the explosion often dissipates to the water surface, and the killing effect is much weaker than at normal depth!"

When Dönitz on the stage said this, his voice could not help but get a few degrees louder. "We have reported this matter to the logistics department many times, but we have not received a response so far! Oh no, it's not that there is no response, but that the response has not been resolved at all, and it has been dragging on!"

"You are irresponsible for the lives of submarine officers and soldiers!" he said angrily

ps: I am taking the final exam... Please forgive me~ Please vote for me

Chapter 60: Airtightness of the Depth Chamber

"General Dönitz, calm down!" The captain could only speak when he saw that Dönitz's tone was becoming more and more aggressive.

"This is the situation! General Lütjens!" Dönitz glared at the experts present and said angrily, then he finally softened his tone when talking to the captain.

"Everyone here, our General Dönitz has finished speaking. Do you have anything to explain?" The captain nodded and asked.

I saw Dönitz and the captains sitting behind him glaring at the people from the logistics department. The leader of the latter team coughed awkwardly, and had to stand up and say in front of everyone: "We are investigating this issue now, and have negotiated with the torpedo supplier, but we have not been able to find out the cause of the problem so far. We will continue to investigate..."

What a pity, the more he spoke, the quieter his voice became... I shook my head. Isn't this obviously a trick to fool the frontline officers at the scene? Who would buy into this? Sure enough, Mueller, who had been aggrieved for a long time, was the first to lose it and stood up.

Well, it’s a fight...

It was really boring to listen to the arguments on the stage, so I continued to use my mental power to look at the structure of the torpedo. I knew nothing about the technical materials and torpedo manuals given to us at the meeting, but I had briefly inquired about it before and knew that the principle of the torpedo depth setter is to use a barometer to set the depth. It seems that the water pressure at a depth of one meter is equal to one tenth of the atmospheric pressure, so using a barometer to measure the water pressure can set the depth of the torpedo. If there is a problem with the depth setting, then nine out of ten times it is with the depth setter. But the people in the logistics department said that they had checked the depth setter and there was no problem. They also brought out a large test report, and the back of each page of the report said that there was no problem. Well, the Germans are indeed a rigorous nation, and they are so rigorous even when they argue.

Anyway, I had nothing to do, so I went to see the depth gauge as they said. Since I was "reincarnated" into a warship in this life, I might as well learn some military knowledge.

I listened to the conversation between Dönitz and the torpedo experts from the Navy Logistics Department on the stage. The engineers had already dragged a torpedo over and cut it into pieces and put it on the stage. Then they brought out various drawings and data to discuss the torpedo, and then I learned about the control structure of the torpedo according to what they said. Well... this thing that can move up and down is the elevator, which is responsible for the torpedo to float up or dive. Behind the elevator is a mechanical structure that I can't name. It seems that the extension and retraction of a rod of the depth setting device to adjust the depth is converted into the up and down movement of the elevator; one end of the rod is connected to the sea water and a cylinder-this is the depth setting device, right?

According to the experts, the extension and retraction of the rod is determined by the comparison between the water pressure and the air pressure of the depth gauge, and the depth can be set by using a clip to determine the extension position. It is a very clever design. But... who can tell me... why the main shaft of the torpedo propeller passes through the depth gauge! ? ! ?

Others may not notice this problem, but who am I? Not to mention that my mental power is like the later X-ray scanner, and I can see all kinds of gaps clearly. Even without the scanning function, I know that there is definitely something wrong with doing this!

Because I have three such propellers on my body... If you want to ensure the rotation of the main shaft in this place, you can't weld it or block it, so the place where the main shaft passes through will definitely not be completely sealed, it's just a matter of gap size.

I would say that every time we sail, the compartment where the main shaft is located will leak water? It's just that the amount of water is not large, and there is a water pump designed to pump out the water that flows in quickly. But in the case of the torpedo depth gauge...

If I remember correctly, during the exercise two days ago, when U99 surfaced and opened the hatch, it popped up with a "bang", although the first group of passengers that jumped out were four little mice... At that time, I actually asked Dönitz why the hatch popped up with a "bang", and he explained that it was because the submarine had been underwater for a long time, and in order to ensure the oxygen supply, air had to be continuously pumped into the cabin from the air tank, so the air pressure was higher than outside...

When I saw this, I seemed to understand something!

If it is not sealed completely, then the depth gauge will be a tragedy...

"I understand!" (If I have glasses and a watch, will I become a dead elementary school student?)

I suddenly said this behind the captain, when everyone was arguing fiercely, and everyone's eyes were focused on me.

Uh...is this too abrupt? I'm not used to being stared at by so many people...

The captain turned around and asked, "What do you know?"

"I want to know the problem of setting the depth of my torpedo." I said

"Really?!" Dönitz, who was furious at the so-called experts, was overjoyed when he heard what I said and strode over. The submarine captains also showed happy expressions - they all knew now that I was the one who proposed the exercise plan, and no one looked down on my existence anymore.

"Who are you?" the engineer next to me said to me with a rather bad attitude... Well~ I know why he was angry. They had been trying to solve a problem for a long time but ended up having the solution from someone like me who appeared out of nowhere. It's normal!

"She is my secretary (ship), Bismarck." The captain glanced at him, not caring about his dissatisfaction at all, and said to me, "You know what the problem is, tell me." The captain still has confidence in my abilities.

The captain had spoken, so the engineer had no choice but to stop, but he still glared at me with dissatisfaction... I didn't mind.

I smiled at him provocatively and cleared my throat. Now everyone was standing with me as the center.

"Look at this first!" I pointed at the torpedo that was torn into pieces, "The propulsion shaft and the depth chamber!"

"What's the problem with the depth chamber?" the engineer said disdainfully. It seemed that he wanted to take out the sealed report again. I was about to say something when the captain had already said it.

"Bismarck, keep going!"

"Okay, Captain." Well done!

"I think the troops on surface ships, even those on submarines, should know about the sealing problem of the main shaft. The fact is that no matter how good the filler is, as long as the main shaft rotates, it proves that there is a gap!"

"You need to seal it completely, unless you weld the spindle!" I shut the engineer up with just one sentence.

"I just took a look at the structure of the torpedo and roughly know what the reason is. I can say that this is entirely a design problem! The main shaft passes through the depth chamber, and because it cannot be completely sealed, there is a gap. As a result, when it is underwater for a long time, the high-pressure air inside the boat enters the normal-pressure air in the depth chamber. In other words, the air pressure in the depth chamber of your torpedo on the third day is the same as the air inside the boat. So I think you all should know the consequences!" I looked at the captains and said with a smile.

"Even if the set depth is 0, its actual depth is still several meters away from the sea surface!" Muller said loudly, "Miss Bismarck is absolutely right!"

"These few meters are enough to keep the bottom of the destroyer safe." I said

"But they had no problem determining the depth on the first day." Dönitz asked doubtfully.

"This is the consequence of not sealing it completely. It takes a certain amount of time for it to leak. The pressure inside and outside will not be balanced all at once. Even if you can prevent water, can you prevent air?"

The last sentence is for the engineers.

"Ms. Bismarck! You are amazing! I really admire you!" Dönitz laughed and came up to me, patting me on the shoulder. There was no point in my argument that could be refuted. In fact, we could find out by just doing an experiment - putting it in a high-pressure chamber.

"If you don't believe it, the verification is very simple, just throw it into the high-pressure gas chamber!" I said to them without any pressure. The engineers on the other side were speechless, and the one who was aggressive just now also retreated. Everyone knew that I was almost right.

"It seems we should thank Miss Bismarck for helping us find the problem." The logistics officer smiled at the captain.

"I think we should first test it according to Bismarck's suggestion." The captain said, "But I agree with her. After all, it is impossible to seal the propulsion shaft."

"Yes, yes!" said the officer, and he turned around and ordered his engineers to take a torpedo away for experiment - the hyperbaric chamber can be found anywhere, and under very high atmospheric pressure, the changes inside the submarine that would take several days can be achieved in just a few hours.

After a while, while we were chatting, the engineer came over with the results. It turned out that I was not wrong. It was indeed the poor sealing of the fixed depth chamber that caused the problem.

ps: Yesterday, the Diba went to war and left no grass. Did you pay attention? We have a wall to protect the other side~haha

Chapter 61: Tirpitz

"Thank you so much, Miss Bismarck!" Dönitz, who was speechless by the engineer from the logistics department, saw me as his savior and excitedly extended his hand to me and shook it tightly. "My captains are almost desperate about this problem, and there has been no response from the higher-ups. Thank you so much for helping me solve it."

I smiled embarrassedly and said, "General Dönitz, you are too polite. It's just a small favor..."

"Your effort is really enough to make some people ashamed!" He looked at the engineers beside him and said with disdain.

"Yes, we should thank Miss Bismarck. If this problem cannot be solved, we will be in big trouble." The head of the logistics department also came over. "The torpedo is designed like this. We will go to the supplier to have a good talk and ask them to redesign it!"

"Try to have the improved torpedoes in service within two months!" This is what he said to Dönitz.

"I will keep an eye on it." Dönitz replied indifferently, "I hope to see new torpedoes soon."

"Haha." I laughed at him politely. He looked honest, but who knows what he was like inside? If we take the torpedo problem seriously, professionals will soon find out. It's not a complicated inspection. Moreover, a main shaft actually passed through the airtight chamber that emphasizes sealing. Can I say that the engineer has lost his mind?

Speaking of which, the German army's equipment is really a lot of holes, the first 37 hand-pulled machine guns, the current torpedoes, and who knows if there will be other problems in the future. Take the current problem for example, it is not difficult to solve, but it has been dragged on... Maybe the army is not a monolithic entity.

We fought hard on the front line, but behind us... We can only say that Germany was not completely controlled by the mustache. The existence of the Junkers and Goering's abnormal control over the Air Force later affected the course of the war.

But I can only think about this kind of thing, what can I change? To be honest, in this environment, even the captain can only be swept forward, let alone us ordinary people.

Perhaps it would be more interesting for me to see Tirpitz's progress.

After dinner, the captain and Dönitz went into the reception room. I asked for leave, went to the dock, and found the car that was temporarily assigned to our ship.

The Wilhelm Shipyard was an extremely important production base in Germany. Its full name is the Wilhelmshaven War Naval Shipyard. Many German warships were launched here, the most famous of which are the Tirpitz, Admiral Scheer and Scharnhorst. Unfortunately, the shipyard suffered a devastating blow from the British in the later period, and more than 95% of it was destroyed...

I quickly arrived at the shipyard gate and drove straight in. Like the Foss shipyard, they also adopted a strict entry and exit permit system, and every person entering and leaving needed to be checked.

"Stop!" A sentry suddenly blocked my car and shouted loudly. At the same time, the sentry on the other side habitually pointed his gun at this place.

Aren't you afraid of an accidental discharge... I muttered to myself, and immediately stopped the car and turned off the glaring headlights.

He came over and saw me in military uniform, and his tone softened a lot: "Miss, please show me your ID!"

I nodded, took out my officer's ID from a box on the side and handed it to him.

He looked at it carefully, looked at me, and then handed it back to me.

"Can I come in?" I asked with a smile.

"Don't you have a shipyard pass?" he asked. "According to regulations, we must have a shipyard pass to enter and exit here!"

"Ahem, but I have an officer's certificate!" I said, "It clearly says that I am the clerk of the Bismarck!"

"I'm sorry, miss. We need a pass before we can let you in!" He shook his head at me seriously.

He waved his hand, and the door closed again...

"General Lütjens asked me to come and see the progress of the construction of Tirpitz!" I said

"Miss, if you keep saying that I'll call someone to arrest you!" He glanced at me and said, "I've never seen anyone come to check on the construction progress at night. Please leave immediately!"

"Please, look at this officer's ID, it's genuine! It's not a fake!"

"You still need a pass!"

After talking for ten minutes, I still couldn't get in. It seemed that I had acquired the skill of bargaining! Why was it useless in front of the Germans?

"All right···"

I said helplessly, I surrender!

In this situation, I had no choice but to reverse and leave the gate. The sentinels returned to their posts only after I disappeared from their sight.

Really dedicated...

But how could I leave like this... I turned a corner, parked the car in a corner, and then walked out. It turned out that I still had to rely on myself.

It's not that I'm dissatisfied with the sentinels. To be honest, although I'm not very happy, I still praise the sentinels for their seriousness. I said at the time that I was Lütjens's clerk, and it was clearly stated on the officer's certificate, but I still couldn't get through. With such a guarding attitude, my sister will be well built, right?

What's the problem? I could have walked in directly, but I wasted time just for the convenience of the car...

I silently dematerialized my body, then easily passed through the towering wall, and kept this transparent state and walked to the dock. The progress of Tirpitz was quite good. She was launched in June last year, and then began to assemble turrets and upper buildings. By now, most of the project has been completed. The bridge and other buildings have taken shape. They are more than ten meters high from the deck, which is surprisingly large compared to the small boats installed next to them. The bases of those large-caliber naval guns are still empty, revealing four large black holes on the deck, which affects the aesthetics... The four turrets will be hoisted last - I know this because my hull was also completed in this way. And my turrets are completely placed on it by gravity, and there is no locking.

Some people might wonder, how can there be no fixings? What if it falls out? I was also very surprised when I first saw it, but when I saw the four things weighing more than 1500 tons together, I knew I was worrying too much...

As long as the ship doesn't capsize, with this gravity, I don't think any wind or waves can make it fall off my body. At least, I haven't worried about it at all. Of course, if the ship capsizes, then there's nothing to say. I've watched Cameron's "Return to Bismarck" before. In that world, the Bismarck capsized, and the four turrets slid out and scattered all over the ground... It was quite tragic.

I stood at the dock and looked up at the battleship. It was the first time I saw a battleship as big as me. Standing at her bow, my human figure looked so small. A strong sense of pride arose spontaneously. This is my sister!

From the moment I entered the port, I felt a strange, familiar feeling coming over me, and as I approached the factory at night, the excitement became even more difficult to suppress, and it reached its peak until I reached her side!

I have a strong feeling that there will be a surprise waiting for me!

I will reveal the mystery!

I walked quickly to the gangway at the stern. As soon as my fingers touched the railing, I suddenly felt a surge of thoughts. I stepped back subconsciously, but heard a "click" sound. A valve in my consciousness seemed to be opened...