In the sky, the German Navy's new fighter jets have begun to fly test, and in the rough Atlantic, the German Navy's new weapons are ready to go. Pen & Fun & Pavilion www.biquge.info

Prien, a great submarine commander, had a great moment to change his weapons this time.

The U-47 submarine and the huge bullpit painted on this submarine became legends, and they followed Captain Prion to the new submarine.

Looking at a brand-new submarine on the dock, Prien's first intuitive feeling was that this submarine was really too big!

His original U-47 submarine was a submarine with an underwater displacement of just over 800 tons, and now it was replaced by a brand-new IXB ocean-going submarine.

The underwater displacement of this submarine has reached 1,170 tons, and the endurance is more than 8,000 nautical miles, and its self-sustaining power is much stronger than that of the original U-47 submarine, and its combat effectiveness has been greatly improved.

Almost all of the large submarines that are now mass-produced in Germany are such large ocean-going submarines, which put considerable pressure on the British Navy's transportation lines in the Atlantic.

"I heard that this submarine has adopted a lot of new technology, and it seems that our General Dönitz still takes good care of us." The first mate looked at the submarine in front of him and said to Prion with a smile.

The officers on the original U-47 submarine were transferred to stay on the original submarine and were promoted to take the newcomers to sea to fight.

And Prion took the newly replenished sailors, plus the original two-thirds of the old team, to receive new submarines, and rejoined the battle after training.

The mass production of the IXB submarine began as early as 1939, and now it is 1940, naturally there will be no technological gap, this is a very mature submarine, every craft is meticulously crafted.

This submarine was the backbone of the German submarine force in World War II, and it was also the type of submarine that sank the most Allied ships. By any measure, this submarine was the pride of the German Navy in World War II.

Because of its increased size, the submarine can carry a more powerful engine, allowing the submarine itself to move forward faster.

The larger volume also gave more space for fuel, increased endurance, and more torpedoes allowed the submarine to sink more Allied submarines on a single patrol.

The increased internal space means that you can carry more vegetables and grains, and you can crouch in the ambush circle for a longer time, waiting for your prey to take the bait.

"At least we can live at sea for a long longer time." Glancing at his first mate, Prien smiled and said this.

Above the shell of the submarine's conning tower, a huge porthole outlined in white paint is the "U-47" representing Prien.

On the other side of the submarine, a huge bullfighting bull is depicted, which looks majestic and very shocking.

On the dock, the officers and men on the submarine, whether they were old faces that Prien knew or new faces who had just been assigned, were all working hard to replenish daily necessities on the submarine.

There was soap for scrubbing, and shells for anti-aircraft guns...... And, of course, as much food as possible, even piled up in Captain Prien's resting compartment.

As a submarine commander, Prion was the only person in the submarine who had his own private room, except that his poor rest room had no door - only a curtain to block the view of the hallway.

The position was now filled with food, and every space in the cabin had to be used to make the effort to keep the submarine at sea for a few more days.

"Changed the password again?" Looking at the intelligence officers on the two submarines, carrying the brand-new Enigma cipher machine up the ladder of the submarine, the first mate looked at Prien and asked.

Prion also saw the new cipher machine, nodded and said, "The latest order of the Navy's submarine force has modified the Enigma cipher machine again, and enabled another set of ciphers. ”

The Führer's requirements for ciphers were almost harsh, he required the army to change ciphers regularly, and frequently improved the Enigma cipher machine, and no one knew what it was for.

Many high-ranking generals have assured the Führer that the Enigma cipher machine is absolutely secure, and the code is impossible to decipher. But while the Führer has become susceptible to goodness in other respects, in this respect it borders on perverted stubbornness.

As if he was obsessive-compulsive, he asked the troops to update and strengthen their password system, and the frequency of replacement was based on the speed of the popularization of the troops' password changes.

In other words, as soon as the codebook is issued and is in use, the secrecy department has already begun to draw up new password rules - as soon as the password rules are drawn up, they will be replaced.

The most direct reason for this is that Li Le is not sure whether Turing and his code-breaking program are working as they did in history.

Li Le was afraid that his coded communications would be deciphered by the British, and he grasped the latest movements and strategic deployment of the German army. So in order to prevent this from happening, the way he took was to change the password used by his troops as soon as possible.

Because Li Le himself had changed the steps of the bombing of London, he was not sure that Turing and his team would be able to develop an updated code-breaking system on time.

It was precisely because he knew Turing's power that Li Le was a little too nervous about the security of his cryptographic system.

In fact, after Li Le's bombing of Turing's deciphering team began, Turing's code-breaking work almost came to a halt.

The British have not only lost their previous experience in codebreaking, but they have also lost at least 1,000 talented people who work in codebreaking.

This made Turing's work difficult, and he had not yet been able to come up with a new solution to deal with the rapidly changing cipher system of the German army.

It is precisely because of this that Germany's current passwords are finally secure, so that Germany's senior military officers can finally use their communication equipment with confidence and boldness.

"We're going to join Sea Y and join up with 11 wolves there to find the British convoy......" The first mate saw that the last soldier had already stepped onto the submarine, and repeated the order to Prien.

Prien followed behind the first mate, the last to leave the dock and board the newly replaced submarine, his palms caressing the brand-new railing.

"Check the air pressure valve of the submarine, and all the torpedoes...... I need everyone to report back to me after confirming every detail! Prion commanded loudly.

"The anti-aircraft gun inspection is complete! Everything works! At the guard post behind the shell, a sailor replied to Prion in a loud voice.

The other two men carefully inspected the 105 mm cannon in front, and also raised their hands and shouted to Prien, who was climbing the enclosure of the conning tower: "The deck gun is all right!" ”

"The hatch seal is all right!" In the distance, someone shouted the inspection and confirmation password, and it seemed that the submarine was a warship in a normal state of readiness.

"Light the engine! Check the engine status and the amount of fuel...... Is the air pressure smooth? Prion stood on top of the conning tower, leaning on the upper edge of the enclosure, and commanded the inside of the submarine.

In fact, the actual effectiveness of this submarine has been rigorously tested before it is delivered to the troops, but Prien, who has obtained the new weapon, feels that it is better to check his new weapon on his own.

"Everything works fine with the diesel engine! You can go to sea! "Everything is fine with the torpedo! Can be used! "The drain valve is fine!" "There is no problem with the battery!" In the cabin, one voice after another was heard.

Prien nodded, then leaned back on the enclosure, glanced at the coastline in the distance, and ordered: "U-47 submarine, sail!" ”

"Keep course and get out of the dock! U-47 submarine departure! The first mate repeated Captain Prien's orders, loudly reminding the pilot to operate the huge creature according to his orders.

Next to Prien's U-47 submarine, two other IXB submarines were also leaving the dock and moving slowly towards the sea.

Because of the increase in production ordered by the Führer himself, the production rate of the Navy's IXB ocean-going submarines has also increased recently, and this kind of submarine has given full play to its performance advantages in a major war ahead of schedule.

Even so, it is rare to see three brand-new Type IXB submarines leaving port at the same time. If the British saw so many Type IXB submarines, they would definitely vomit three liters of blood......

Because they were now frightened by the large number of German submarines, and at this moment in the Atlantic, the terrible submarines of the Germans were increasing their number at a rate of several days.

"This time hopefully we can meet more British merchant ships." The first mate looked at the two submarines in the distance that were leaving the dock and said to Prien.

Prien also feels that the recent increase in the number of U.S.-flagged merchant ships in the Atlantic has constrained their submarine attacks.

This kind of cattleness has existed for a long time, and many British Navy transport ships will fly the American flag in the dangerous German submarine safari area in the Atlantic, in order to get by.

However, in this case, the German submarines themselves had their own set of rules - they would sink these ships as well, just to ensure that they did not see anyone dead or dead.

The rest can only be left to the diplomats between the two countries, spitting on each other.

"Heading northwest! Accelerate to 12 knots and let everyone take turns to get on deck to breathe! Prien squinted his eyes and felt the salty breeze coming out of the sea, and commanded the U-47 submarine to rush to the rough Atlantic Ocean once more......