Chapter 1416 Crossing the North Pole

The biggest advantage of nuclear power is that it provides almost unlimited endurance. The energy contained in the atoms is released through fission, and the heat generated is like a boiler, which is used to heat water, turn it into steam, and drive the steam turbine to do work. , the energy can be output.

It can directly drive the propeller at the tail through the reducer to make the submarine move forward, and at the same time, it can also drive the generator to supply power to the entire submarine.

This is the main principle of nuclear-powered submarines. At the same time, one of the big problems of long-term underwater life is oxygen. For nuclear submarines, it is produced by electrolyzing water. Anyway, the source of electricity is infinite. At the same time, the source of fresh water inside the nuclear submarine is also obtained from seawater desalination.

In this way, in addition to the food that needs to be prepared when setting off, everything else can be prepared at any time, so as to meet the sailing requirements of the submarine to the greatest extent. How long it can sail underwater depends entirely on the self-sustaining ability of the crew inside the submarine.

Like now.

The underwater world is quiet, only the steam turbine and main reducer in the engine room at the rear emit a slight low rumble, and the entire submarine is like a quiet big shark.

On the conning tower, Captain Otto Kreizmer was listening carefully to his subordinate's report.

"Captain, according to our sailing route, we have crossed the Arctic ice cap, and the Chukchi Sea is ahead." said the deputy captain on the side.

Otto is the number one ace captain of German submarines and has a brilliant record again and again, so he was finally appointed as the captain of the first nuclear submarine U-801.

This number spans a lot of numbers and starts directly from U8. Later nuclear submarines will also increase backwards in turn. In German shipyards, the number has been arranged to U811.

After a long sea trial, the submarine has met the design requirements, and even surpassed it in some aspects. The crew members have also undergone rigorous training.

Even Otto has studied for half a year before graduating from the newly opened nuclear submarine command major and obtaining the post certificate of the nuclear submarine captain.

He is already familiar with all the structures of nuclear submarines, and also knows some of the risks inherent in nuclear reactors. For him, everything is aimed at victory!

"We have created a miracle, the first submarine to cross the North Pole!" Otto said: "Now, the submarine is afloat, ready for starlight navigation."

"Yes, prepare to go up." The deputy captain followed excitedly and gave orders.

They were underwater and sailed for half a month. If it was a diesel-electric submarine, it would be unbearable. The noise of the diesel engine, the smell of diesel in the air, the feeling of dampness, the smell of sweat , it will give people a kind of nausea urge.

But it's different now.

Their submarines have always been quiet, the oxygen produced by electrolysis even has a fresh smell, it is a small amount of ozone produced, and the air inside the submarine is still good.

Of course, it would still make people feel happy if they were able to float up. They hadn't had the sea breeze for a long time.

"The sonar room reports that there is no sound of ships nearby."

"Drain the ballast tank and prepare to float."

Under the ice, they have always been sailing at a depth of about fifty meters. Now, with the orders issued one by one, this submarine with a displacement of 6,000 tons has slowly surfaced from the water.

The bow came out of the water first, and when its teardrop-shaped bow was exposed, it seemed like a huge whale rising to the surface, followed by the hull behind.

"Open the hatch," Otto said, climbing up the ladder.

In the past, the XXI submarine was only 2,000 tons, but now the nuclear submarine has been enlarged to 6,000 tons, which greatly improves the space of the entire submarine.

There was ample space on the conning tower, and Otto, who was wearing a military coat, could easily climb up.

Now, it is night time, all the stars above the head, and the cold wind is blowing, making people feel the cold wind, but the smell of this fresh air is still very exciting.

It was the first time I saw the outside world since I set sail.

Following him, the first mate on the boat also came out, picked up the starlight navigation equipment in his hand, aimed at the familiar constellation, and prepared for the first calibration.

In the navigation of a submarine, its own navigation and positioning is also very important. In the previous submarines, this contradiction was not prominent, because the submarine sailed on the surface most of the time, and the submarine navigated how the surface ship navigated.

However, after the invention of the snorkel, submarines often sailed underwater. At this time, navigation began to have a doorway. As for now, nuclear submarines sail completely underwater and cannot see everything on the water. navigation is more critical.

To this end, the designers of the submarine brought the inertial navigation equipment used in the missile.

The core of the inertial navigation system is the gyro, which is stable. Through the measurement of the relative position, the acceleration of the submarine can be known. Then, as long as the acceleration is integrated once, the speed can be obtained, and the voyage can be obtained through the second integration. By comparing the position of the submarine, the navigation parameters such as the longitude, latitude, pitch and roll angle, speed, sailing distance and heading of the submarine can be calculated.

However, this thing is not very sensitive. Before the invention of the laser gyroscope, the error of the mechanical gyroscope will continue to increase due to friction.

In this way, it needs to be calibrated after sailing for a period of time.

Starlight navigation is the most common way of navigation. It can be said that it has been used by navigators since Columbus, and this is something every sailor must learn.

Now, the first mate has carefully checked three times, and finally, with a helpless expression on his face: "Captain, after we sailed for more than half a month, there was a huge error in our heading. Now, we are not asking Chuke. Sailing in the direction of the strange sea, we are about to meet in front of it, and it is not Wrangel Island, our course is deviated by a full 30 degrees, and we are sailing in the direction of Novosibirsk Island."

Inertial navigation system, the longer the time, the greater the error, the previous trial time was not long enough, but now, accumulated, there is a huge error!

And for all this, Otto is mentally prepared.

"Okay, then let's adjust the course and sail east!" Otto said: "Keep a high degree of alertness, and the crew will be in groups of two, come to the top to let out the wind, and each group will take two minutes."

Now, it is still far from the Soviet coastline, and the Soviets have no anti-submarine energy to operate here, and it is night again, and the navigation should be safe.

After holding back for more than half a month, it is time for the sailors to come up and let out the air.

Otto's order was about to make the sailors shout long live, they were arranged in the submarine in order, ready to go up and let out the wind.

"Turn on the sea search radar, and the sonar room is on alert."