Diesel-electric submarines use diesel engines on the surface and batteries underwater, because the power of the batteries is limited, so every once in a while, they have to surface for ventilation and charge the batteries.

This is also the most dangerous time for submarines, many of which are destroyed in a surface state.

At the suggestion of Ciric, Germany invented the snorkel, which can start the diesel engine for charging without surfacing and in the state of the snorkel, but, after all, there are exposed snorkels, and the diesel engine will also emit black smoke during operation, floating above the water, and it is still easy to be found.

Therefore, the best solution is nuclear power!

In later generations, only the five rogues possessed nuclear submarines, which were their right-hand tools to safeguard their interests.

At the time of the Taiwan Strait crisis, Uncle Sam's aircraft carrier formation approached, and as a result, the satellite found that the nuclear submarines in the nuclear submarine base in Huaxia had disappeared, even though the nuclear submarines at that time were still very noisy Han class, Uncle Sam still withdrew his aircraft carrier a hundred nautical miles for insurance.

Historically, the breakthrough of nuclear submarines was achieved in the fifties, but now, history has been greatly advanced.

The theory of nuclear fission was developed by leaps and bounds in the twenties and thirties, and with sufficient investment and the right direction, a breakthrough can be achieved.

Historically, for example, Heisenberg made the mistake of thinking that the atomic bomb could not be built, and as a result, he focused on nuclear reactors, and he had already conducted many experiments on nuclear reactors before the defeat of Germany.

And now, under the impetus of Ciric, experiments on nuclear reactors have been carried out much earlier.

At the beginning, in the Libyan base, German scientific researchers began to work hard for a breakthrough in nuclear technology, although their main purpose is to use nuclear reactor combustion to produce nuclear fuel, to achieve the goal of manufacturing nuclear bombs, but the heat generated by nuclear reactors is still used by them to generate electricity, and the electricity of the entire base is enough to be provided by nuclear reactors.

The nuclear reactor in the Libyan base has been operating safely for seven or eight years, and with the investment of Germany, larger reactors are constantly being built, after all, the amount of reactors needed to produce enough raw materials for the manufacture of nuclear bombs is huge.

At the same time, nuclear reactors, which are specifically intended for use in submarines, have also been studied as a special topic.

On land, there is no need to worry about the size and weight of the nuclear reactor, and it is very safe to use thick cement concrete as an enclosure and can also prevent the emission of rays.

However, on submarines, it is necessary to simplify.

"Führer Ciric, it's a pleasure to meet you."

When Ciric walked into the slipway, unsurprisingly, he saw a young scientist.

Werner Karl Heisenberg is not yet forty years old, but he is already the most authoritative nuclear technology expert in Germany, and under his leadership, German scientific researchers are overcoming various technical difficulties in nuclear bombs.

At the same time, he was also responsible for the development of the nuclear reactor for the nuclear submarine, and now, while the nuclear submarine is under construction, he has come to the shipyard to carry out some coordination work.

Heisenberg was very excited to see Ciric, not only because Ciric was the head of the empire, but also because he was an expert in technology, you know, everything now comes from a nuclear fission equation, and this equation was proposed by Ciric.

In terms of the construction of nuclear reactors, Ciric has put forward a lot of plans.

"Dr. Heisenberg, thank you for your contribution to the Reich." Ciric reached out and shook hands warmly with Heisenberg.

"We've frozen the design drawings." Heisenberg said: "The nuclear power system of this submarine, we have built a special analog reactor on land, it has been proven, there are no problems at all, but the power is not enough, after calculations, the maximum speed of the submarine will not exceed 15 knots." ”

After all, it is less than 40 years now, and various industrial technologies are not as developed as in later generations, in which all nuclear submarines can fly to a high speed of 30 knots.

However, not right now.

At the same time, the power density of nuclear reactors is also very limited, and the submarine has been enlarged to a displacement of 6,000 tons, and it can only reach a speed of 15 knots.

However, if you compare it with diesel-electric submarines, it is nothing.

Diesel-electric submarines, when using batteries underwater, can reach a maximum speed of 17 knots, but in this case, the precious electricity will be consumed at an alarming rate, even in an hour, it can be exhausted.

But now, this nuclear-powered submarine can run at a speed of 15 knots for several months, which completely depends on the underwater endurance of the submariners.

Ciric nodded: "Well, this is just the beginning, we can't pursue too high technical goals, the main thing is to ensure good security." ”

Submariners are one of the most dangerous types of troops, and as long as there is a problem, there are almost no escapees.

Diesel-electric submarines are no exception, after being attacked, diesel-electric submarines often appear that the battery is broken, when the seawater enters the battery, it will generate terrible hydrogen, and then, the hydrogen meets an open flame and explodes, the entire submarine is under water into pieces, and no one can survive.

The most critical issue for nuclear-powered submarines is nuclear leakage, and the lethality of radiation to people is very great.

"Yes, we use a lot of thick lead plates in the nuclear reactor and in the first circuit." Heisenberg said: "At the same time, a large number of radiation recorders are also installed on the submarine, and if the radiation exceeds the standard, the alarm will be immediately given. ”

Blocking rays with lead plates is a common method, which, of course, also leads to an increase in the weight of the submarine.

"Nuclear reactors need to be safe, especially after an accident, to be able to shut down safely and not to have control failures." Ciric continued.

The accident of the nuclear power plant in later generations is still a warning to mankind that when Pandora's box is opened, it must have the ability to close the cover.

"Yes, the most important thing for this nuclear reactor is safety, so the output power is reduced, and it is easier to shut down the reactor." Heisenberg nodded repeatedly.

"The second problem, the noise of the submarine, must be solved, which is related to the survival of the submarine."

Cirek is very clear that the magic weapon for submarines to survive underwater is to be silent, and only by becoming a black hole in the ocean can they launch a silent attack, and the lower the noise, the better the concealment.