Cross the Songhu battlefield and rise to become the most powerful warlord

German Type XXI U-boat 648, Type XXI U-boat

The Americans also understand the principle of not allowing others to snore beside their bed.

Therefore, even if Ye Qingshan brought it to this era, the aircraft carrier and warship manufacturing drawings would not be inferior to those of the Americans.

Basically impossible.

At least, it is absolutely impossible if the Americans know about it.

In this case, we can only develop a fleet that can fight against the American naval fleet without the Americans knowing.

The only way Ye Qingshan could think of to break the deadlock was submarines.

After all, submarines are not built to be invisible like aircraft carriers and warships.

The Yankees can see it at any time.

Easy to hide.

Soon, Ye Qingshan began to search for submarine information he could find on the Internet.

After using it for several hours, the battery of the phone was almost exhausted.

Ye Qingshan discovered that the most advanced submarine data he could find was actually from the German U-boat series.

In the end, Ye Qingshan chose the design drawings of the Type XXI U-boat developed by Germany at the end of World War II.

The Type XXI submarine is absolutely the most advanced submarine at the end of World War II, without a doubt.

Many aspects of his designs are on the right track for submarine development.

For example, German scientists believed that the role of submarines should be to hide underwater and launch surprise attacks, rather than surfacing and engaging in head-on combat with enemy warships as submarines were doing at the time.

Therefore, the Type XXI submarine eliminated its deck guns and retained only the torpedo tubes.

You heard it right. At this time, submarines of various countries were still equipped with deck guns, which was wrong.

The Type XXI submarine, which has eliminated its deck guns, has a more streamlined shape, reduced underwater resistance and less noise.

This allows its underwater speed to exceed its surface speed, making it less likely to be detected by sonar.

The submarines of various countries of the same era were faster on the water than they were underwater.

It is also equipped with autonomous navigators, sonar and other advanced electronic equipment, and can sail for up to 90 days without surfacing.

It can be said that the German XXI submarine was at least ten years more advanced than the submarines of the United States and the Soviet Union of the same period.

Unfortunately, this submarine was born at the wrong time. By the time the first Type XXI submarine was launched, it was already 44 years later.

Germany was about to be defeated.

In addition, the training of personnel for these new submarines and other aspects will take time.

Therefore, although more than one hundred Type XXI submarines were built in history, only one actually participated in combat.

It had little impact on WWII.

However, it had a significant impact on the development of submarines in later generations.

It is no exaggeration to say that it is the ancestor of modern submarines.

This is why Ye Qingshan chose him.

Of course, there is another reason, that is, it is difficult for Ye Qingshan to find information on more advanced submarines after World War II.

Many of them have not been decrypted and cannot be found.

Fortunately, if this XXI submarine can be built, it will be able to maintain technological leadership in this era, at least in the next ten years.

It will be fine to use it for twenty or thirty years.

This is enough for Ye Qingshan.

"It's just you."

In the end, Ye Qingshan decided not to waste time looking for other advanced submarine technologies.

Most likely it can’t be found.

Let’s take this Type XXI U-boat.

This will be the future main submarine chosen by Ye Qingshan for Sun Jiaming's submarine fleet.

At this time, I was using my mobile phone continuously to search for information.

The battery of the mobile phone was almost empty, so Ye Qingshan decided to charge it again.

Go back to your bedroom and sleep.

At dawn the next day, Ye Qingshan got up early for morning exercises as usual, and then went into the basement.

Alice was curious and approached the basement to see what Ye Qingshan was doing inside.

But he found that the basement had already been surrounded by Xiao Wusheng and his men.

No one was allowed to approach, even Alice was stopped by Xiao Wusheng.

"What are you doing so mysteriously?!"

Alice muttered twice and turned away.

Didn't ask much.

In fact, she has become accustomed to this situation.

Ye Qingshan had done the same thing when handling military affairs or sending top-secret telegrams in the past.

Alice thought Ye Qingshan was in the basement again, handling military affairs.

She simply ignored it and continued her own journey.

Ye Qingshan returned to the basement and excitedly turned on his mobile phone.

But the next second, his originally joyful expression froze.

Just because he found that after charging his phone overnight, the battery was only charged to 80%.

In an instant, Ye Qingshan had a bad feeling.

There is a problem with the phone battery.

"Depend on!

I knew things wouldn’t always go smoothly.”

Ye Qingshan was speechless.

Fortunately, this is not the worst case scenario.

"If the total amount of power is reduced every time you charge it.

I estimate that the time I can use my phone will not exceed 16 hours.

If that's the case, I'll have to hurry up."

Ye Qingshan felt a sense of urgency.

"This time, I need to re-record some important events in the late stage of World War II..."

Click, click, click!

Soon, the sound of camera shutters was heard again in the basement.

"Xiao Wusheng, send in a batch of film."

Half a day later, Ye Qingshan made a phone call and asked Xiao Wusheng to send in another large batch of film.

Fortunately, yesterday Ye Qingshan asked Xiao Wusheng to go to the shops in the city and buy a lot of film.

So that Ye Qingshan’s work would not be delayed due to lack of film.

At noon, Ye Qingshan charged his mobile phone again.

A few hours later, Ye Qingshan found that the phone could not be charged any further after it reached 71%.

"Sure enough, the power level decreases by about 10% each time."

Now, Ye Qingshan has finally figured out the law of power decay.

Pretty much as he expected.

There was no way, Ye Qingshan could only face reality.

Ye Qingshan didn't even have the appetite to eat dinner and continued to shoot the footage.

Two days later, when Ye Qingshan walked out of the basement, he looked up to the sky and sighed.

The mood is a bit complicated.

In the basement, there are three large boxes full of film.

This is the result of Ye Qingshan’s work over the past three days.

At the same time, in the suitcase, the mobile phone that Ye Qingshan brought was lying quietly inside.

But the screen would never light up again.

Fortunately, during these three days, Ye Qingshan has already collected all the data, information, and intelligence he will need in the next few years, whether it is war, business, or other aspects.

Everything has been photographed, and it is quite satisfactory.

“The next step is to find time to develop the films.

However, there is no rush for this.”

Not long after Ye Qingshan walked out of the basement, Xiao Wusheng reported: "Commander,

Your father and father-in-law have been here these two days.

Let you contact them after you come out.”

"okay, I get it.

Leave a few guards to guard this basement and no one is allowed to approach.

let's go. "