Of course, the development of China's nuclear submarines is not all smooth sailing,

In the 60s of the last century, China's nuclear submarines have experienced an extremely bumpy development process since they were launched.

China first developed nuclear-powered attack submarines, the first of which was launched in the 70s, when it was called the 'Long March 1', the 091 type in China, and the 'Han' class abroad.

After the Navy test received, the number was 511 boats, and then 512, 513, 514, and 515 boats were built and put into service, and the Navy first deployed this strategic weapon to the North Sea Fleet to defend the Gyeonggi stronghold, and used it to guard the political, economic, and military heart of the motherland.

On the basis of the successful construction of the Type 091 'Han'-class attack nuclear submarine, China has also successfully built its first strategic missile nuclear submarine, the Type 092, known abroad as the 'Xia'-class strategic missile nuclear submarine No. 516.

The nuclear submarine participating in the Sino-Russian joint military exercise this time is this 'Xia'-class strategic missile nuclear submarine.

In the sixties, the Chinese Navy was ordered to secretly develop nuclear submarines. The development site is on the shore of Yangzonghai Lake in Yunnan Province, which is deep inland.

The Great Southwest is the strategic rear, and the military-industrial complex is intensive. The first batch of nuclear submarine developers gathered 29 experts from all walks of life, and the only information they had in their hands was two blurred photos of the nuclear submarine and a children's model airplane toy brought back from the United States and a model airplane brought back from Hong Kong.

It is true that although China has a nuclear reactor, how to turn it into a hub for submarines is fraught with difficulties.

The busiest of the R&D departments is a carpenter, who has been selected through the most rigorous technical examinations. Because the model of the nuclear submarine is made entirely of wood at a 1:1 scale, it has realistic internal organs, like a super toy.

The domestic nuclear submarine was conceived in a wooden-shelled "big cigar" on the shore of Yangzonghai Lake. It was dismantled, dismantled, banged, and beaten, and it had exceeded the cold and heat for several degrees. The elite of cutting-edge science acquired a great deal of emotional and rational knowledge from the sawdust and shavings. From wooden to iron, China's first nuclear submarine was finally moved to Huludao Military Port to start construction.

The threat of the Vietnam War, the Battle of Zhenbao Island, and the "surgical" nuclear strike by Soviet Russia caused the Central Military Commission to issue a rigid directive of "building while designing".

It is difficult to calculate the financial resources consumed in the development of nuclear submarines. But in any case, even if it is piled up with mountains of gold and silver, as long as it gives China the ability to "second nuclear retaliation", it will still be worth the price.

It is precisely under these circumstances that the design and construction of nuclear submarines have been tossed back and forth, and the complete sets of equipment that have been installed on the hull have been completely overturned and restarted only because the design is unreasonable somewhere, this is a strategic race to spend money to buy time, and the difficulties in the construction of China's nuclear submarines can be imagined.

It is said that the first steel-hulled submarine began to conduct a "mooring test" at a certain base of the North Sea Fleet, and the most serious accident occurred -- the main pump of the nuclear reactor leaked, and high-temperature, high-pressure, and high-dose radioactive materials leaked out.

At that time, it was the period of "political command," and the motto in the military was "one is not afraid of hardship, the other is not afraid of death," and "life is endless, and the charge is not endless." All the military representatives in the research and development unit submitted a "letter of determination to the line of fire" to the party organization, asking Ying to go to the fire and enter the nuclear reactor compartment to troubleshoot.

On the Army Day of August 1 in 1974, the Central Military Commission named China's first nuclear submarine "Long March 1" and officially incorporated it into the naval combat sequence, which was the "Han" class nuclear-powered submarine of the North Sea Fleet. At this time, 8 years have passed since the beginning of the project.

In 1985, the Xinhua News Agency announced that China would conduct a launch vehicle launch test from September 28 to October 18, requiring aircraft and ships of various countries not to enter the sea area with a radius of 35 nautical miles centered at 28 degrees 13 minutes north latitude and 123 degrees 53 minutes east longitude from 10 a.m. to 5 p.m. local time during the above period.

As a result, all the powers used their military satellites to monitor and sent ships and reconnaissance planes to approach the area. The focus of attention is on the detected or undiscovered silos in Chinese mainland, but I did not expect that this is China's largest nuclear submarine underwater launch exercise.

Yang Wenbin heard that there were many tidbits that were not known to outsiders during the 1985 exercise. First of all, an authoritative expert on missile submarine launch proposed a test plan of "one boat and two simultaneous salvos" in order to improve the unsatisfactory accuracy of the two missiles being launched one after the other.

The reason is very good for the military's appetite, and the salvo of two bullets is of more practical significance, which will increase the difficulty of enemy interception.

Secondly, a salvo test of the model projectile can be carried out first, and various parameters can be collected. The proposal was finally approved, and the effect of the model test was good, and there were no problems with the pressure resistance of the submarine and the impact load at the launch depth; The power system and main equipment of the submarine are operating normally; The two missiles fired in unison had no effect on the missile launch system and the ground command system.

As a precautionary measure, the final plan for the comprehensive exercise was to fire two bombs at boat A and two bombs to be fired one after the other by boat B.

After the launch, a telegram came from the point where the bombs hit it, and the landing point of the two bombs fired by boat A was twice as accurate as that of boat B.

Before China's strategic task of "building a modern and powerful navy" has been realized, the existing nuclear submarine combat practice is still very cautious and conservative, and submarines that really carry nuclear warheads rarely sail into the deep sea and sail long, and generally cruise in the coastal waters or simply lie quietly on the hidden seabed. China can already look down on the world, and if it has a few unique skills hidden in its sleeve, it can be respected by the international community.

On December 31, 1987, the first long-distance training of the Chinese Navy's nuclear submarine was a complete success. All the officers and men of the submarine unit drove the nuclear submarine to complete various training tasks on the vast ocean, setting a record for the longest underwater voyage, the longest range, and the highest average speed of the Chinese Navy's submarine.

The nuclear-powered submarines participating in this long-distance training were designed and built by China itself, and all machinery and equipment were made in China. It has the characteristics of large endurance, high sailing speed, long submarine time and good concealment performance, and is a milestone in the history of the Chinese Navy.

In the spring of 1988, China's nuclear submarines crossed the Taiwan Strait for the first time and went to the South China Sea, and successfully carried out a number of tests, such as extreme deep diving, underwater full-speed navigation, and deep-sea minefishing, showing that China's nuclear submarines fully meet the mission requirements of concealment, surprise attack, and suitable for medium-to-far sea, large-depth, and long-distance operations.

Before the 1990s, these five attack nuclear submarines were deployed in the North Sea Fleet, and after the 1990s, two were transferred to the South China Sea Fleet to strengthen maritime combat forces in the South China Sea and T Island.

In March, rumors about China's second-strike capability suddenly swirled.

At the beginning of the month, AFP and other media said that China's Type 094 nuclear submarine could be commissioned as early as next year and "can provide China with a modern and powerful sea-based nuclear deterrent."

In the middle of the month, a number of media quoted the intelligence agencies of country M as saying that China had tested the Julang-2 intercontinental ballistic missile in coastal waters with a range of more than 8,000 kilometers, "which indicates that China will have a second underwater nuclear strike capability."

At the end of the month, news of the trial voyage of China's Type 094 nuclear submarine appeared on the website of country M's "strategic page". A series of reports have attracted renewed attention from all walks of life about China's second-strike nuclear capability.

Of course, Yang Wenbin knows what it means to a big country if he has a second nuclear strike capability.