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Today is the 75th anniversary of the founding of the Chinese People's Navy, and to mark the occasion, the first "Hidden into the Deep Sea" film about their war submarines was launched

Many scenes in the film have been made public for the first time, starting with the actual combat, of the formation of the Shandong aircraft carrier, and the high-definition scene of the missile launch from the Julang submarine. Julang-2 (JL-2) is China's second-generation submarine-launched intercontinental ballistic missile designed as a three-stage solid-fuel rocket. The maximum range of the basic version is 7,400 kilometers, while the improved version can increase to 8,000-9,000 kilometers and can carry 1 to 3 nuclear warheads. On December 22, 2013, the first underwater launch test of the strategic nuclear submarines "Julang-2" and 094 " was a complete success. This was also the first time China's naval strategic nuclear weapons equipped it with such combat capabilities. Although the protagonist of this short film is a strategic nuclear submarine, the guest appearance of the aircraft carrier formation is equally impressive. In the short film, two aircraft carrier formations conduct a "red and blue confrontation" exercise led by the ship Shandong. This is also the first time the carrier battle group Shandong is shown. The attack group of surface ships, submarines and aviation wings has been fully documented. Being a standard attack group of an aircraft carrier, it is very likely that there is a type 093 nuclear attack submarine hidden under the formation of of of the group of the six surface warships.



Recently, China Bugle and the Maritime Publicity Bureau launched the Navy's first promotional film on the subject of submarines, "Hidden into the Deep Sea."



This short film follows the Navy's previous "The Sea Reports to the Flag" and "Deep Blue!"



Many scenes in the film have been made public for the first time, starting with the actual combat, of the formation of the Shandong aircraft carrier, and the high-definition scene of the missile launch from the Julang submarine. Julang-2 (JL-2) is China's second-generation submarine-launched intercontinental ballistic missile designed as a three-stage solid-fuel rocket. The maximum range of the basic version is 7,400 kilometers, while the improved version can increase to 8,000-9,000 kilometers and can carry 1 to 3 nuclear warheads. (Public Information)


The history of the "Julang-2" starts from 1976. In that year, the Military Commission had officially approved the development task of "Julang-2," but it was not until 1986 that the First, Second and Fourth Aerospace Institutes jointly submitted the master plan for long-range solid strategic missiles; then they decided to develop long-range submarine-launched missiles.



The technical requirements proposed at that time were that the rocket should reach a diameter of 2 meters, use a three-stage solid rocket motor and have a maximum range of 8,000 kilometers. The core was to develop a large solid rocket motor with a diameter of 2 meters.



In 1994, the second-generation strategic nuclear submarine project, which was later named the 094 strategic nuclear submarine, was officially established. In late 1999, the "Dongfeng-31A" and "Julang-2" projects were officially established.


"Julang-2" adopts double fairing on the head, fairing on the tail in the water, active reduction of cavitation resistance in the water and ignition of the water surface, etc., which are very special. We know that ballistic missiles launched from submarines generally have to be launched underwater and then switch to atmospheric flight after the missile jumps out of the water. The most ideal fairing shape in water is the water drop shape, while the most ideal fairing shape in the atmosphere is the conical type.


The reason why "Julang-2" adopts the double fairing design is to have the best smooth performance and aerodynamic shape both underwater and in the air. The water drop shaped fairing is first used underwater, and after ignition on the water surface, the water drop shaped fairing is thrown away, exposing the conical fairing, then throwing away the conical fairing after leaving the atmosphere.


▲ The Soviet "R-39 Sturgeon" submarine-launched intercontinental ballistic missile is a typical dual fairing design

In addition, "Julang-2" also pioneered the underwater tail fairing, which can be thrown away after jumping out of the water. This obviously pursues extreme performance, but the problem is that the design is too complex and reliability is relatively low . There is also active cavitation technology. After ignition underwater like the "Julang-2," it has to rely on its own motor to get out of the water. Due to the relatively large resistance of seawater, the missile's fuel will be wasted.



The principle of active cavitation technology in water is similar to the phenomenon of "supercavitation." The missile is equipped with a cavitation generator, which can generate a large number of cavitation bubbles to envelop the missile body during underwater navigation, greatly reducing the friction resistance. of the missile body.



In August 2001, the nace Great Wall 200 successfully tested the Julang-2 model underwater for the first time. Although the first tests were relatively smooth, due to China's lack of experience in underwater solid-fuel missile launch research, subsequent test launches were delayed. Continuous test firings failed.



The test launch also failed during the final test in 2009, so the whole plan was discontinued and the additional design had to be redesigned, adding active cavitation technology in the water; finally it took a major step forward, achieving a reduction in water collapse pressure and water discharge. The telemetry system of the "Julang-2" was also redesigned at that time, and the measurement points of parameters for underwater launch were greatly increased. The structure of the missile was also designed and improved, and a comprehensive finite element simulation analysis was conducted, which passed the test was carried out to evaluate the static test on land, and the sea flight test was finally a complete success.



On December 25 and 27, 2010, the missile model was successfully launched twice underwater, testing the active cavitation resistance reduction technology in water. On July 20, 2011, the telemetry missile was successfully launched underwater for the first time after modifying the design December of the same year On August 30 and 16, 2012, the continuous underwater launch test of telemetry bombs was successful and Julang-2 was officially finalized. On December 22, 2013, the first underwater launch test of the strategic nuclear submarines "Julang-2" and 094 " was a complete success. This was also the first time that China's naval strategic nuclear weapons equipped them with such combat capabilities.


At the 70th anniversary military parade on October 1, 2019, the strategic attack module showed the "Julang-2" for the first time, and this time the launch screen of the ballistic missile launched from the "Julang-2" submarine was displayed, which means this The missile is ready.



Although the protagonist of this short film is a strategic nuclear submarine, the guest appearance of the aircraft carrier formation is equally impressive. In the short film, two aircraft carrier formations conduct a "red and blue confrontation" exercise led by the ship Shandong. This is also the first time the carrier battle group Shandong is shown. The attack group of surface ships, submarines and aviation wings has been fully documented.


We know that aircraft carriers are expensive to build and have huge targets. They are undoubtedly the first choice for enemy attacks in wartime. Therefore, aircraft carriers must be equipped with some escort ships and material supply ships with which to form a complete battle group of reasonable carrier attack and defense. For example, the U.S. Navy's aircraft carrier battle group has three typical formations. When patrolling or showing force in low threat areas, a single carrier battle group is usually equipped with 2-3 anti-aircraft missile launching cruisers/destroyers. anti-submarine/anti-submarine Destroyer ships for air defense, 1-2 nuclear attack submarines, 1-2 logistic support ships, for a total of 7-11 ships.


When carrying out deterrence in medium-threat areas, preventing crises, and participating in low-intensity warfare, a dual-carrier battle group is usually used, equipped with 7-8 anti-aircraft missile launching cruisers and destroyers, 4 anti-submarine/anti -aircraft destroyer units, 2-4 nuclear attack submarines, and 2-3 logistic support ships, for a total of 17-21 ships of various types.

When conducting high-intensity operations in high-risk areas, a three-carrier battle group is used, equipped with 9-10 anti-aircraft missile launching cruisers and destroyers, 12-14 anti-submarine destroyers, 5-6 nuclear attack submarines, 3 -4 logistic support ships, for a total of 32-37 ships.

In the carrier battle group, the carrier-based aircraft formation is mainly used to perform land and sea combat missions, and the cruiser/large guided missile destroyer is mainly responsible for air defense, anti-ship, anti-submarine and long-range attack on land targets. The destroyers in the formation have one of the main combat missions of sea/air/antisubmarine warfare and also have the other two combat capabilities. Although frigates have the same or similar combat capabilities as destroyers, they are mostly used to perform anti-submarine warfare in combat.

▲Guided missile frigate type 054A.

The main role of nuclear submarines in carrier formations is to protect and intercept enemy submarines approaching the formation and to act as a relay station for fuel, weapons and ammunition. Because nuclear submarines can sail underwater for a long time, have good concealment and can suddenly attack targets, and their sailing speed is more than twice that of normal submarines, they can locate and pursue enemy submarines in a timely manner.


▲ Nuclear attack submarine type 093

Especially when nuclear submarines are equipped with ballistic missiles and torpedoes, their attack capabilities are greatly enhanced. Not only can they conduct anti-submarine operations, but they can also be used to attack strategic targets on enemy territory, such as transportation hubs, airports and other places.


▲094 nuclear submarine with modified ballistic missiles.

As for the surface portion of the Shandong ship carrier formation, it had already been discovered last May during the Taiwan Island combat readiness exercise and the South China Sea exercise in October. At that time, the formation consisted of the ship Shandong, a 0.55 million ton large cruiser and an 052D. It consists of an air defense destroyer, two Type 054A frigates and a fast support ship, with a total tonnage of about 100,000 tons.


Being a standard carrier strike group, it is very likely that there is a type 093 nuclear attack submarine hidden under the formation of these six surface warships.

Source official WeChat account of "Military and Military Subdimensions."

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