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The suspected submarine target was 8 nautical miles away from the formation, about 15 kilometers away. Ship 706 was approaching the submarine, and the sonar of ship 502 was also intercepting constantly, hoping to keep track of the submarine.
After a while, the sonar soldiers and the captain of the 502 ship gradually felt that something was wrong.
At this time, the formation is sailing close to the cruising speed, and the overall speed is 18 knots.This speed is the cruising speed for surface ships, but the underwater speed of submarines during World War II was mostly 8~9 knots, and the UXXI and Soviet W and R-class can reach 17~18 knots, but at this speed, the battery is generally It lasts for 45 minutes.
"Report," the sonar soldier reported to Captain 502, "The movement state of the unknown submarine is... chasing our formation from the side and rear."
……
The "Suzhou" immediately used a high-power radio to contact the Shanghai base and the East China Sea Fleet, and the East China Sea Fleet quickly reported the news to Beijing.
Commander Xiao Jinguang in Haisi is now confused and worried.The telegram from Shanghai detailed the situation, pointing out the oddity: the formation's sonar found the submarine traveling underwater at a speed of more than 20 knots.When the submarine chaser approached, the submarine slowed down and deepened, and the submarine chaser and frigate immediately lost the target.
"Continue to sail north and maintain a high degree of vigilance. If the enemy does not fire first, we will not attack the submarine." Xiao Jinguang ordered the staff to send a report to Shanghai.
In the Intelligence Department of the General Staff, Li Kenong received a call from Xiao Jinguang. Xiao Jinguang briefly explained the situation, and then asked what was going on.
After understanding the situation, Li Kenong hung up the phone first, and less than half an hour later he called Xiao Jinguang.
"Tang Hua said that this is the first nuclear submarine of the U.S. Navy....Yes, the one that served in the U.S. Navy last year was transferred to the west coast this year. It arrived at Pearl Harbor for training last month. This time it should be an adventure to show off off the coast of China. Force. Tang Hua said, don’t be discouraged if you get lost, we will try our best to fight this submarine, if the ships in the formation can keep watching him without losing their target, then the sonar soldiers and these ships can be credited.”
On September 1954, 9, the "Nautilus" was commissioned at the New London Submarine Base.Then came the famous telegram "We are moving forward with nuclear power", and then began the continuous sea trials and training.
The maximum underwater speed of the Nautilus is 23 knots, and it is not surprising to drive at a speed of 20 knots.And it can cruise at high speed for a long time underwater.
……
yellow sea.
Ships 501 and 502 and the two submarine hunters have done anti-submarine drills. The small submarines purchased by the navy are usually used as companions for frigates and submarine hunters. Sometimes submarines from the Soviet Pacific Fleet Brigade Base also come out to conduct exercises with the Chinese navy.
But today's submarine is not so easy to catch.
The main reason is its speed, which can be fast or slow, and it can also accurately use the interference of the sonic transition layer. When it is fast, the transition ability is amazing, and when it is slow, the sonar is hard to find.
In previous anti-submarine exercises, the small submarines that were trained could only mute and hide from the sonar at a slow speed, and could not get up quickly.
Not long after, the 706 boat failed to "capture" again. After turning twice at the position where the submarine disappeared, the signal of the submarine appeared 5 kilometers away, and it continued to accelerate from 4 knots, and soon reached 16 knots. Festival.
"The speed is 16 knots." "The speed is 17 knots." "The speed is 18 knots. It is moving away from the formation and heading for the southern tip of the Korean peninsula."
Tossing until the evening, when it was getting dark, the mysterious submarine took the initiative to show its position at high speed and left the formation.
Seeing that the submarine was gone, the submarine hunters and frigates stopped chasing, and the formation continued to go to Dalian according to the scheduled route.
The US nuclear submarine showed its muscles for the first time, and it seems that it has achieved its goal.
……
"Don't frigates and submarine hunters have recording equipment? It's a pity. Although this is a test submarine of the US Navy, it is still useful to record its acoustic characteristics."
Tang Hua said on the phone.
The "Nautilus" is an experimental submarine, the only one.Moreover, the digitization and analysis of audio files has not yet come out. This thing consumes computing power, so it is just "a bit of a pity".
Xiao Jinguang: "The Americans are holding nuclear submarines and trying to frighten us. This won't work. We have to scare them back. It's a good deal. Tang Hua, do you have any tricks?"
Tang Hua: "First of all, let's inform the Soviet comrades of the appearance of the US nuclear submarine and the details of the confrontation..."
Now the "Nautilus" is running around the world with nuclear power. The US Navy's second nuclear submarine "Sea Wolf" started construction in 53, and it should be launched this year.The third ship is the first mass-built Ray class, and the first boat will start construction this year.
The first nuclear submarine of the Soviet Union is now in a state of "abnormal and unauthorized start-up" by the shipyard and design bureau, and the official start-up ceremony will be held in September this year.If nothing unexpected, it was launched in August 9 and entered service in March 1957.
As for the United States, I just heard the news that the Soviet Union’s nuclear submarine project has started. The United States & NATO are building SOSUS in the North Atlantic. The thousands of kilometers of underwater sonar listening arrays are like a chain. As long as the warships and submarines of the Soviet Northern Fleet try to break into Atlantic Ocean, SOSUS will find it immediately.
The underwater pressure faced by the Soviet Union and China is a bit high.
Now that the navy has no air defense and anti-ship capabilities, a real fight between surface combat ship formations will bring many surprises to the world.But anti-submarine is really a big shortcoming. Not only does it not have any crushing super-era equipment, it has not even reached the advanced level of this world.
Xiao Jinguang: "It is necessary to notify comrades in the Soviet Union. I will send a telegram directly to Commander Kuznetsov. Besides, should we do some work now?"
"The second branch school in Dalian, the Naval Mechanical School," Tang Hua said, "the major of underwater acoustic engineering should be expanded into an institute of underwater acoustic engineering, which is dual-purpose. In the future, it will be both a teaching institution and a research institution for marine engineering. Comrades from the Soviet Union may propose Sino-Soviet meeting to discuss anti-submarine warfare..."
Xiao Jinguang: "Before then, we should hold a seminar on anti-submarine warfare equipment and tactics as soon as possible. Let's jointly hold it by various units of the Navy, the Sixth Machinery Bureau of the Ministry of Mechanical Engineering, and the Electronic Information Industry Bureau."
Chapter 83, Torpedoes and Helicopters
Neither China nor the United States made public the news of the March 3 underwater confrontation in the Yellow Sea.
The "Nautilus" arrived in the Philippine Sea on March 3 to conduct joint anti-submarine training/testing with the Seventh Fleet.After completing the test subjects, he headed north. The original plan was to cruise the East China Sea-Tsushima Strait exit for 6 to 1 days before returning to Pearl Harbor.At this time, it was discovered that new ships near Shanghai, China were frequently going to sea for sea trials, so they temporarily decided to enter the Yellow Sea, showed off the performance of nuclear submarines to China and the Soviet Union, and then returned directly to Pearl Harbor.
Both Japan and South Korea, who are right next door, know nothing about this matter.
The four ships escorting the "Suzhou" were disgraced this day.If the nuclear submarine is locked, both the sonar soldiers and the escort ship can be credited, but this credit does not seem to be so easy to earn.From 4:1 p.m. to 7:6 p.m., the two submarine hunters were molested for a full [-] hours. In fact, none of them were tracked continuously, and even the exact location of the nuclear submarine was not found many times.
In addition to the superior performance of the nuclear submarine, the two Soviet-made submarine hunters were not originally equipped with good sonar.
Even if the 1000 and 501 ships of more than 502 tons in the formation are equipped with sonars that are one size larger than the [-]-ton submarine hunters, they are not technically advanced.
On the evening of March 3, the five ships arrived in Dalian, entered the port one after another, and moored at the wharf.Embarrassed, the captains of ships 23 and 501 walked down the gangway and found that not only the commander of Luda Base, but also the principal of the Dalian Naval Mechanical School, and the naval commander Xiao Jinguang greeted them at the pier.
Xiao Jinguang knew about the underwater confrontation last night and flew from Beijing to Dalian this morning.
"A warship or an army may be temporarily weak, temporarily backward, and may encounter setbacks, but if they lose their fighting spirit and spirit, how can they win on the battlefield? Is this still the People's Army? This Is it still the navy that defends the motherland's waters?" Xiao Jinguang said, "Comrades, cheer up!"
"Yes!"
"Conscientiously summarize, learn lessons, study carefully, and find a way to win, can you do it?"
"can!"
Xiao Jinguang: "Okay, very good! Now, we have to seriously summarize and carefully study yesterday's confrontation. The four ships that participated in the 322 submarine confrontation, the commander, all sonar and anti-submarine departments, will start tomorrow To conduct a tactical review, the teaching and research section of the Naval Academy, the Naval Staff Department, and Soviet advisers will participate in the research. After a while, comrades from the defense science and technology department will also join in.”
……
Shanghai.
Cheng Wang, director of the Sixth Machinery Bureau (Ship Industry Bureau), talked with Liu Nai on the phone.
"I just returned to Beijing from Dalian," Liu Nai said. "I wish I had returned a week later. I didn't expect that something would happen right after I left."
Cheng Wang: "For the underwater acoustic countermeasure equipment of the Sixth Bureau, the factories and research institutes are located in Dalian, some are in Shanghai, and there may be a little more in Shanghai. However, the sonar equipment has been on the track two years ago, and now it is improving. The problem of improvement. The problem now is torpedoes."
Liu Nai: "Yes, the construction of the torpedo factory has been delayed by us."
Taiyuan Shanxi.
The sites of Taiyuan 874 Machinery Factory (Taiyuan Torpedo Factory) and 872 Machinery Factory (small underwater power plant) were delineated in 1953. According to the planning of the Soviet Union's comprehensive large factory area, the land of the two factories is square and square. Large, the factory is not far away.