Strictly speaking, the United Kingdom is the same island country as Japan, and its area is not even as large as Japan. Of course, Germany’s land area is not as large as Japan.

To put the information on later generations of Internet information, if it is placed in China, it will be approximately equal to the total area of ​​Jiangsu Province + Zhejiang Province + Anhui Province + Shanghai. Japan gives us a small feeling, mainly because its land shape is particularly narrow and long and slim.

So for Britain, one of the protagonists of World War II, once he defeated Britain in the naval battle, it would be a huge disaster for Britain, which relied entirely on the ocean, because the failure of the naval battle would mean that the coastal transportation line was blocked by the empire, starving the residents on the island to death.

Even if you don't starve to death, you will lose your position as a maritime overlord, as well as the power of all overseas colonies, and natural resources.

So in response to this, Chen Yanlong decided to win the naval battle and let Britain and the United States lose this naval battle.

Of course, with his good luck with his smartphone redemption system, he was not worried about weapons and equipment.

But since he discovered the cheating behavior of his smartphone, he was unwilling to rely entirely on this phone to exchange for more weapons and equipment.

Because if the mobile phone stops redemption and closes itself like now, what weapons and equipment will he have to fight against the British and American troops at that time? Although he has stored a lot of advanced weapons and equipment in the storage base he has built, he can't even sit there.

Therefore, for Germany, which did not have much storage of weapons and equipment before the war, Chen Yanlong now had to plunder the wealth he had from the occupying power and produce more of the most advanced weapons and equipment of the German army during World War II in the shortest time, and submarines.

Because during the entire World War II, the German fleet was suppressed by the British and American fleets and did not have much dazzling results. Instead, the German submarine troops shocked the world and achieved good results.

Moreover, the U-XXI submarine produced by Chen Yanlong now was also the most advanced submarine that the German army had the ability to develop and produce, so he was not worried that the German army would not be able to produce it.

However, the production of such submarines is more advanced than the main VII U-type submarines used by the German army now, including the VIIC/41 submarines.

After handling the submarine and hung up Sperer's phone call, Chen Yanlong continued to think about how to improve the combat capabilities of the air force, especially in terms of combat performance, strategy and tactics of these aircraft.

Spel, who had hung up the phone before Chen Yanlong had just replied, was covered in black lines, and stood there in a daze with a depressed and stupid look on his phone.

"300 U-XXI submarines will be produced within half a year?"

"You think I am God! Head of State!"

At this moment, Spel yelled in depression.

The German U-shaped submarine was the most attacking weapon in World War II and the sneak attack was its most successful tactic, especially the wolf pack tactics created by Denitz.

However, at the end of World War II, with the emergence of various anti-submarine weapons and equipment, especially the applications of radar and sonar, the German submarine sneak attack tactics became increasingly weak.

Of course, the upgrade technology of submarines in later generations is also becoming more and more advanced, such as those nuclear submarines.

However, Germany has no way to develop such an advanced submarine as nuclear submarine. Therefore, in terms of the U-XXI submarine technology owned by the German army, the U-XXI submarine, that is, the Type 21 submarine, is already the most successful and advanced technology.

"It seems that we have to talk to the experts from the Navy Technical Committee. 300 U-XXI submarines will be produced within half a year. This is not a joke! This is a difficult production task!"

"And even if it is produced, those submarine members still need to undergo rigorous training to familiarize themselves with the large number of new equipment in the submarine before they can go into the sea to conduct military combat operations!"

After complaining, Spelle fell into deep thought in depression and muttered in depression.

But just as Sperer was about to set off for the Naval Technical Committee, Chen Yanlong took the design drawings of the nuclear submarine and rushed to the office of the German Naval Technical Committee in a hurry.

The experience of submarines during World War II exposed a big problem, that is, the time when a submarine can sail under the water is completely severely limited by the battery storage capacity in the submarine. Even if it sails at the lowest rate, it must surface after a period of time for charging. The submarine is very vulnerable to attack during the charging process.

Another limitation is that if a submarine wants to track high-speed navigation ships to attack, the submarine must float out of the sea to output power with a diesel engine to barely catch up with a fast ship with a slow navigation speed. However, in this way, the submarine loses the protection of seawater and combat advantages of its seawater, thus exposing it to be attacked by the enemy.

Therefore, in order to make the submarine's combat more concealed and the continuous navigation capacity under the sea longer, in 1946, a group of scientists led by Heyman George Ricover began to study the use of atomic energy reactors, which are the pressurized water reactors used on submarines, for power navigation.

So in the 1950s, the world's first nuclear submarine, the Nautilus, was born in the United States.

The design drawings of the nuclear submarine that Chen Yanlong is now holding is the design drawings of the world's first nuclear submarine, "Nautilus", developed and produced by the United States.

The reason why Chen Yanlong suddenly wanted the German Navy to develop nuclear submarines was because he was worried that the anti-submarine technology in the late World War II would become more and more advanced, so that the 300 U-XXI submarines he had just issued for Sperer would be gradually consumed by the powerful anti-submarine capabilities of the British and American troops in naval warfare. Therefore, he hoped that the German army would still have some trump cards and advanced submarines he could develop for future war use.

However, even if you have design drawings, manufacturing data and other information for nuclear submarines, it does not mean that they can be manufactured immediately, and they can also be mass-produced, because there are still many technical problems that require the German Navy technical department, who has no experience in manufacturing nuclear submarines, to conduct research and solve.

"I wonder how long it will take for the German Navy Technical Department to develop the nuclear submarine I need after obtaining these design drawings and data sheets!"

Under the escort of his own guard, Chen Yanlong, who was sitting in the car, muttered anxiously.
Chapter completed!