The propeller plays a vital role in the importance of the secrecy of the nuclear submarine, the whole nuclear submarine is like a person diving in the water, during the swimming, the human body itself will make the sound of the beating of the heart, the sound of the flow of blood, the sound of the bones in motion, and the sound of the hands and feet of the water, and the sound of the heart and blood is equivalent to the noise of the nuclear power plant of the nuclear submarine, and the sound of the bones is equivalent to the noise of the transmission system of the nuclear submarine. The sound of the feet is equivalent to the noise of the propeller at the tail of a nuclear submarine

There is no doubt that the biggest noise comes from the hands and feet, and the sound of the heartbeat, blood flow, and bones is easily annihilated by the background noise in the water, so once the noise of the propeller is suppressed, the privacy of the entire nuclear submarine will be greatly enhanced.

This is why the propeller is so important to the nuclear submarine, and do not treat the propeller as a very ordinary metal part, in fact, the pressurized water nuclear reactor technology suitable for use on the nuclear submarine has been mastered by many countries, but only the manufacture of high-end propellers, only the United States, Germany and Japan are at the top of the world, and even Russia is a big step behind, not to mention China, not to mention.

However, the emergence of Dongchen has completely solved this old and difficult problem that has plagued the development of nuclear submarines for many years, and China has spent a total of 20 years to make its technology in the field of seven-blade large side inclined propeller manufacturing continue to mature, but even when it is the most mature. Also far from the West, however. It took less than half a month for Dongchen to produce two 11-blade large side-tilt propellers that are definitely the world's top. Among them, the propeller technology alone has been improved for at least forty or fifty years overnight!

After the 094 was replaced with an eleven-blade large side inclined propeller, the noise performance has been infinitely close to that of the American Ohio-class nuclear submarine, although the Julang 2 submarine-launched missile on the 094 is far from the American Trident. But in terms of survivability, 094 has become one of the best in the world overnight!

The military is very satisfied with the performance of 094, and the next highlight is the performance of the new submarine after being equipped with Dongchen 11-blade large side inclined propeller!

The overall scientific and technological strength of the new submarine. It has been nearly ten years more advanced than 094, and every technology applied to this large nuclear submarine with a displacement of 10,000 tons can be called the pinnacle of China's manufacturing strength, but before Dongchen did not develop an eleven-blade large side inclined propeller, this new submarine is only stronger than 094 in terms of tonnage, sonar, electronic system and power performance, but the missile is still carried by a range of only 8000 kilometers Julang 2, and the tail is equipped with a propeller. It is still not an advanced seven-leaf large side-tilt technology.

The new submarine has taken up two long-standing and difficult problems of the nuclear submarine, the range of the submarine-launched missile is insufficient, and the submarine noise is huge, and now, this new submarine equipped with an 11-blade large side-inclined propeller, like a ghost, slowly enters the detection area.

At a depth of 300 meters and a speed of 7 knots, the new nuclear submarine cruised in the detection area for about an hour, and the sweaty sonar crews were talking about it. They couldn't find any information about the submarine, and sometimes, the sudden sound from the sonar made their hearts tighten, but after chasing after them, they found that the source of the noise was not the submarine they were looking for at all.

The commander-in-chief was not overjoyed, but immediately spoke: "Let the 'ghost' continue to sneak and cruise in the designated detection area, and immediately request the Haining Air Base to dispatch anti-submarine aircraft to cooperate with the test!" ”

"Yes!"

This time, the commander-in-chief is going to use all his horsepower to pursue the whereabouts of this submarine ghost, anti-submarine ships, anti-submarine aircraft, and anti-submarine helicopters, almost all of the anti-submarine skills have been used, which is obviously much beyond the wartime anti-submarine degree, because no nuclear submarine will be stupid enough to stay in the opponent's detection area all the time, waiting for the other side to use all their skills. …,

However, if the whereabouts of the new submarine cannot be found in such a three-in-one anti-submarine coverage, it means that the secrecy of this submarine will reach the tip of the world's nuclear submarines, and even, directly comparable to the Ohio class.

With China's current anti-submarine technology, it is very difficult to accurately discover the cutting-edge strategic nuclear submarine of the Ohio class, Ohio is the sharp arrow of the United States' nuclear strike, and its survivability can be said to be the king of nuclear submarines, China's nuclear submarines are not only worse than Ohio in terms of survivability, but also the multi-integrated silencing technology of the entire submarine, but if the propeller of China's nuclear submarine is stronger than that of the Ohio class, then it can make up for the gap in other parts.

Anti-submarine planes and anti-submarine helicopters took off urgently, and twenty minutes later, the anti-submarine planes were already cruising over the detection area, and three anti-submarine helicopters arrived thirty minutes later, but after so many anti-submarine equipment, they searched hard for half an hour, but still did not find the shadow of the submarine.

The commander-in-chief suppressed the excitement in his heart and blurted out: "Inform the 'ghost' to play freely, the purpose is to break out of the detection area, once it breaks out of the detection area, today's test mission will be successfully completed!" ”

The ghost received a silent signal wave, and after receiving the command, it stopped cruising around the detection area, but adjusted its course and sneaked at the farthest point in the detection area, which was equivalent to increasing the difficulty of the breakthrough mission to the limit, and for the sake of caution, the ghost's speed dropped to 5 knots, at this speed, the ghost roamed for three hours before slowly rushing out of the detection area.

The sky was already getting brighter, and the communications staff shouted excitedly: "Report, the ghost has shared the coordinates and completely rushed out of the detection area, requesting the next order!" ”

At this moment, the scene really exploded, everyone hugged each other excitedly, and some even cried with joy, just like the first atomic bomb exploded, the first artificial satellite went into the sky, and the first intercontinental missile test was successful, because these people know that today, for the national defense science and technology of the whole country, it is definitely an epoch-making day!

Whether it is 094, or a new submarine without a certain model, their concealment ability has changed from the previous ranking to the bottom of the world, the United States has been repeatedly promoting that China's submarine silence ability has exceeded the detection ability of the United States, but the military has been making fun of the huge noise of Chinese submarines, and now, their threat theory has come true, I am afraid that the concealment ability of the new submarine has really exceeded the detection ability of the United States!

After a hard night's work, but everyone was so excited that it was difficult to hold themselves, the commander-in-chief gave the order in ecstasy, all the anti-submarine aircraft returned, the anti-submarine ships returned, and 094 and the new submarine returned directly to the dock to rest.

At the same time, the results of the test were immediately reported to the ears of the high-level in Yanjing, for this earth-shattering good news, both the military and the government were excited, in the encrypted telegram sent, not only highly affirmed the test for the entire national defense force of the great advancement, but also named thanks to the Dongchen Group for the great contribution to national defense science and technology.

Zhang Wenhao was satisfied, he was unwilling to directly participate in the manufacture of military equipment, and he gave a considerable degree of help to national defense science and technology in this way, he understood in his heart that he wanted to be the irreplaceable person, not the person who tried to replace everything, the irreplaceable person was of enough importance to anyone, but the person who tried to replace everything would eventually go to destruction, so he was excited and still firm in his position, he and Dongchen would not directly manufacture military equipment in the future.

In the eyes of the high-level, Dongchen has now risen to a peak, whether it is his incomparably strong civilian automobile manufacturing strength, or the DCC-1800A high-power diesel engine he developed for the army, or the eleven-blade large-scale side-inclined propeller that has achieved excellent results in today's experiments, Dongchen has become a pie-in-the-sky treasure in their eyes, and maintaining this cooperative relationship with the military has also made the high-level impression of Dongchen better and better. …,

On the shore, Zhang Wenhao was arranged to rest in the guest house of the shipyard, and when he woke up, it was already evening, Secretary Liu knocked on Zhang Wenhao's door and said to Zhang Wenhao: "The banquet hall has prepared a meal, and a celebration banquet will be held tonight, you are the person in charge of Dongchen, and the only Dongchen member on the scene today, everyone strongly invites you to participate." ”

Zhang Wenhao nodded and said with a smile: "Such a festive event must be attended." ”

Director Liu smiled slightly, and said: "The military's order has come down again, including our current 094, as well as the new submarine under construction, the military wants to order a total of ten eleven-blade large side inclined propellers of the same scale from you, the purchase unit price is 50 million yuan, two sets have been completed, and there are eight sets, which need you to deliver within half a year." ”

Zhang Wenhao smiled indifferently and said, "It won't take half a year, and it will be delivered within three months." Saying that, Zhang Wenhao said again: "The price of 50 million is too high, you don't need so much, let's give a discount, 5 million." ”

"Five million?" Director Liu shook his head helplessly and smiled: "You kid, why do you always push the money sent to the door out?" Last time DCC-1800A, you also lowered the price significantly, and this time when it came to the propeller, you reduced the price again. ”

Zhang Wenhao shrugged his shoulders and said: "Dongchen really does not lack this money, Dongchen is now only Dongchen Pharmaceutical production of dampness orthopedic stickers, has opened the North American and European Union markets, this year's revenue can already exceed 5 billion US dollars, rough estimates, Dongchen Automobile's annual income this year, should reach 100 to 15 billion US dollars, if I continue to expand production capacity and launch new models in the later stage, I am afraid it can reach 20 billion, the world's top 500 must be no problem, this money, for Dongchen is really nothing, but, Not charging money at all seems to destroy the cooperative relationship between the two parties, so I will charge an approximate cost price. ”

Director Liu laughed, patted Zhang Wenhao's shoulder and said with a smile: "Rich and rich, sure enough!" (Your support is my biggest motivation.) )