In the early morning, the sun rises in the east and the wind and snow condense. In the Ninghagen shipyard on the southern coast of the Baltic Sea, a strange ship slowly slid into the sea from the platform and rushed out a large area of ​​white water. Unlike other surface ships, it was directly put into use after it was launched and did not carry out any outfitting work; a black vulture naval cross flag was raised on its freeboard that was only 0.4 meters high, flying and dancing, with a unique meaning.

On the viewing platform at the highest point of the ship, several figures in gray coats stood at the sea, looking at the ship not far away with their eyes. It is 30 meters long and 3.2 meters wide, and is compact and slender. What is most striking is that it has only a command tower on its deck that is only enough to accommodate one person, and nothing else is there.

"Mr. Khedira, I remember you told me before that this kind of submarine can produce a finished product in just one and a half years. But today is February 15, 1898, and nearly two years have passed since the day you made your promise."

Accompanied by a sound of magnetic and jade, the figure standing in front turned his head; the brim of the hat was slightly raised, revealing a handsome and handsome face. An ordinary military coat was worn on his slender body, and there was a dazzling look of a beautiful and beautiful jade. Hearing the boy's words, the man standing on his left coughed awkwardly and said, "Report to your Highness, this was indeed a bit simple for me to consider at that time. I originally thought that I only needed to solve the problem of the submarine's rolling and rolling underwater, and then install an engine to complete it; I didn't expect that after this, some other factors were involved, and the workload surged. By the time I solved all the problems, it was November last year."

"Speaking of this, Xiao Hedira, you, a guy who has been delayed for more than 4 months, isn't it a thing that can only be seen but not used, right? You know, in order to overcome the water pressure that the submarine has to bear when sailing underwater, you need to use special pressure-resistant steel, and the cost of this thing is comparable to that of a high-power power system. If the Navy wants to purchase this 130-ton little guy, it will take at least 280,000 marks to drag it away. If your work fails, even if you work all your life, you will not be able to invest in Your Highness." On the right side of the boy, a middle-aged man with one-sided glasses said in a slightly teasing tone.

"Shut up, Frick, you, a barbarian who can only rely on lowering the freeboard to improve performance, how can you understand this cute little toy I designed?" Hedira was standing in front of the boy with a shameless face because of the delay in construction. He immediately jumped up like an angry bulldog when he heard this. He looked at his old partner's annoying tickling face and said angrily: "Today is the time for the trial sailing of this submarine. Look carefully for me. If there is any problem with it in the process of moving forward, turning, diving, floating and torpedo launching, I will cut off my head and eat it!"

The boy was sandwiched between the two and felt a little embarrassed. At this moment, a group of naval officers and soldiers in military uniforms walked out from the corner in front and climbed onto the deck through the wooden bridge that penetrated the berth. Seeing this, the two involuntarily withdrew their gazes, either angry or joking, and focused their attention on the submarine in front of them. Due to the cold weather, the officers and soldiers were wearing thick winter clothes, and the speed of entering the submarine seemed particularly slow. After a while, the team of about 10 soldiers got into the submarine one after another from the opening in the center of the command tower. One of them worked hard at the opening for a long time because they were a little stronger.

Seeing this scene, the boy's eyebrows, as if he was clear and clear, couldn't help but frown slightly. Fortunately, after a moment, a rumble sound came out; listening to the inspiring voice, the boy's mood changed to expectation again. After nearly two years, he also created a submarine belonging to Germany. Although the speed was still more than half a year later than that of the American Holland, as long as he was a time traveler, Germany's attainments in this field would definitely be far superior to other powerful people!

Mechanical vibrations and sounds deafening. Even in this cold weather, the roar of the gasoline engine still spread far away. The propeller behind the submarine began to rotate slowly, from slow to fast. After a while, the entire pike-like hull shook slightly, and then began to sail overseas. The waves flew and flags flew. Every once in a while, the submarine had to speed up slightly. By the end, it was like a swimming fish, slashing waves on the sea, sailing gracefully.

Suddenly, the submarine struck a large number of surging water splashes. Qingying felt a little frightened, knowing that this was the rhythm of the ship's turn. Before her thoughts fell, the barracuda turned its bow and drew a smooth arc of water waves on the sea. Qingying stared at the blue sea below intently, and was nervous, and his hands couldn't help but clenched into fists. For fear that the submarine would be unhappy, he showed him the crown prince's unique skill of overturning.

The clock ticked, and the beating heart beat Qingying's chest one after another. Seeing that the submarine had completed the 180-degree turn in an extremely stable posture, the water splashed and the aftermath was faint; Qingying's heart finally landed on the ground, and he couldn't help but breathe a sigh of relief. He turned his head and faced the cold wind that was coming to his face, and said to the two of them with a smile: "It seems that the water navigation performance of this submarine is indeed very superior! Mr. Khedira, how did you do it?"

Seeing that the submarine was swinging or turning left and right, there was no sign of shaking or awkwardness, Khedira was very proud. He heard Qingying's slightly praised inquiry, he looked at Frick next to him like a demonstration, and then said: "Report to Your Highness, considering that the submarine still has to stay on the sea most of the time when it is moving in the ocean, I used some special methods and methods to appropriately increase the submarine's GM value. Your Highness also saw that although the boat's freeboard was only 0.4 meters, its stability was still worthy of recognition. As for the barbaric period, it is only inversely proportional to one-half of the GM value. If the officers and soldiers of the German Navy could not bear such a little shaking, they would no longer have to wear the navy uniform!"

Qingying nodded slightly, with a hint of praise in his eyes. He pointed to the submarine sailing at full speed in the distance and said, "Mr. Khedira, do you see, what speed is this submarine?"

Khedira was slightly stunned when she heard this, and was about to observe carefully. Frick next to her had already spoken: "Report to your Highness, when Xiao Hedira was designing, he installed a large gasoline engine with a power of 40 horsepower, which could push it to sail on the water at a speed of 7.1 knots. According to my observation, the speed of this submarine has reached 7 knots. However, it has only completed the first step of surface navigation. The remaining underwater navigation and torpedo attacks have not yet begun to practice, and it is still impossible to judge its overall performance."

"Frick, you guy, wait and see. The things I designed will never have any problems!" Khedira said, "When he heard this, he glanced at the man with one-sided glasses, then turned his head and said to Qingying, "Your Highness, you will soon see the last test of this submarine. We towed a barge in the far sea as the target ship for the submarine torpedo attack. It will start diving 6 nautical miles from the target ship, and then sailed 1,000 meters from the target with the power of the motor, and finally launched a torpedo attack underwater. Since the barge is 10 nautical miles away, I would like to ask Your Highness to take a yacht to sea and watch this scene at close range."

When Qingying heard this, he looked forward and looked far away. With the 1.5 titanium alloy black eyes on this body, he saw a small dark dot at the junction of the sea and sky. With his approval, the three of them walked out of the stands and boarded the yacht. Half an hour later, the ragged barge clearly came into their eyes.

After leaving the port, the cold wind was even better overseas, and Qingying couldn't help but wrap her coat tightly. The waves on the sea surface were shaking, constantly hitting the yacht's side. Looking at the endless sea surface, Khedira said: "The submarine has already submerged and is heading towards the target ship. I installed a battery-powered unit with a power of 15 horsepower on this submarine, which can maintain the submarine's 50 nautical miles underwater at a speed of 5.2 knots. It is expected that in another half an hour, the submarine will reach the predetermined torpedo launch position. Since the new 450mm torpedo with a range of 3,000 meters has not been developed, the torpedo launch tube equipped on this submarine can still only launch old torpedoes with a range of 1,200 meters."

Qingying nodded slightly. Historically, the German Navy only equipped a new torpedo with a range of 3,000 meters in 1905. Although he had asked the relevant units to develop it in advance, it would probably be difficult to compete for the full results without four or five years. After blew the cool breeze for half an hour, the waves were rolled up, and a black periscope suddenly rose on the sea ten meters away on the side of the yacht. In Qingying's dull eyes, it turned around on the shaking sea surface, and then pointed the camera at the yacht that was close to it! Seeing this, Qingying's hair stood up all over his body. If these guys treated his ship as the barge and carried out a torpedo attack, the fun would be great!
Chapter completed!