.Chapter 54 Expedition to the Sea of ​​Japan

When Wang Yuhan received the order, the "Sea Snake" was looking for opportunities in Jianghua Bay.

Although affected by geological formation, the Yellow Sea is generally shallow in the west and deep in the east, but due to factors such as river alluviality, the water depth of the bay on the west side of the peninsula is very shallow, and the average water depth of Jianghua Bay is less than 30 meters.

what does that mean?

The diameter of the pressure-resistant shell of the "Sea Snake" is 6.8 meters, and it is 1.4 meters from the bottom of the boat to the top of the photoelectric periscope. When you are submersible, you will hit the bottom if you are not careful.

It's nothing to hit the soft seabed, but the raised mud will definitely cause trouble.

Wang Yuhan was very cautious. When he entered Jianghua Bay, the "Sea Snake" had more than a dozen targets, most of which were ships with a displacement of hundreds of tons, and only one bulk cargo ship with a displacement of more than 3,000 tons. When he was about to attack the cargo ship, an anti-submarine helicopter flew over, forcing him to give up the attack.

Chinese submarines have already participated in the war, and the coalition's anti-submarine helicopters are no longer only deep-water bombs.

In such a shallow sea area, the threat of deep-water bombs is greater than that of torpedoes. As long as they are detected by anti-submarine helicopters, a few deep-water bombs can end the "Sea Snake".

The new order not only made Wang Yuhan feel relieved, but also made him very uneasy.

It is certainly a good thing to leave Jianghua Bay, but it may not be a good thing to go to the Sea of ​​Japan.

After asking Jiang Xinwei to adjust the route, Wang Yuhan used the time of dinner to explain the situation to the officer.

"The endurance is not a problem. There are still two-thirds of the fuel cell left. If you have the opportunity to charge the battery, you can save a lot of electricity." Lieutenant Hodder, the chief engineer, is a good man among the officers. He never opposes Wang Yuhan's decision and will not sing a counter-tune with other officers. "If you choose the shortest route to enter the Sea of ​​Japan, you can patrol for a week. The key is that we have to return to the local port, and the remaining submersible voyage is insufficient to travel back."

"The order has been mentioned that after completing the mission, you can go to the North Korean port."

"A week later, will the North Korean port still be in the hands of the People's Army?" The question was the weapon officer Lieutenant Di Bowei.

"It will take at least two days to reach the Sea of ​​Japan. If you encounter trouble, you will be forced to detour the Tsushima Strait. It will take three days to go to the North Korean port unless you use all the torpedoes in advance." Hodgun smiled and said, "At that time, you may only be able to enter the Pacific Ocean from the Sogo Strait or the Tsukisawa Strait, and then return from the Osumi Strait. The total voyage will not be less than three thousand nautical miles."

"You have to float up once a day to charge the battery." Dibowei added.

"No matter what, the order is very clear." Jiang Xinwei turned his eyes to Wang Yuhan. The officers opposed going to the Sea of ​​Japan, and the situation was almost out of control.

"The Navigation Master is right, we must obey the orders." Wang Yuhan put down his fork and pushed the rice plate forward, saying, "If everyone wants to go ashore early and taste the exotic atmosphere, they have to seize the opportunity and shoot the last torpedo out as soon as possible."

"Don't go to the Sea of ​​Japan?" Jiang Xinwei was a little surprised.

"Of course we have to go, but we can't fly over. Who can guarantee that we won't have anything on the way to the Sea of ​​Japan?" Wang Yuhan smiled and said, "Although the order did not mention the reason for sending us to the Sea of ​​Japan, you have seen that all submarines that received the order have to go to the Sea of ​​Japan. In other words, the Aid Korea Operations Command is planning a large-scale maritime battle, and submarines are the main force. Now there is a question, why send so many submarines to the Sea of ​​Japan instead of intercepting ships heading to Haizhou in the Yellow Sea?"

"It must be related to the coalition's actions over there." Electronic officer Lieutenant Bai Chongshan spoke the last.

"It's right," Wang Yuhan pointed at Bai Chongshan and said, "We are executors, not decision makers, but these signs indicate that the coalition forces are about to land on 6 in the eastern part of the peninsula. Our mission is to prevent the coalition forces from landing on 6. Not to mention whether there is a chance to sneak attack the coalition forces on 6, if we can find an opportunity in the Korean Strait, we can use up all the torpedoes in a battle."

"Attacking the coalition's transport fleet?" Dibowei asked.

Wang Yuhan nodded and said, "With the combat effectiveness of the 'Sea Snake', our target is definitely not the US aircraft carrier battle group. If the target is the US fleet, the order will clearly mention that we will stand by in the Sea of ​​Japan and fight with the aviation forces."

Several officers agreed, because in the confrontation exercises against aircraft carrier combat groups, they all emphasized the coordinated combat between submarines and aviation. With one force alone, it is difficult to pose a threat to the huge US aircraft carrier combat group. Only when multiple arms fight together can they have the opportunity to defeat the enemy.

"We still walk the Jeju Strait and then patrol the Busan Strait, waiting for the opportunity."

"What if I don't wait for the opportunity?"

Wang Yuhan glanced at Di Bowei and said with a smile: "Then sneak into Busan Harbor and shoot all the torpedoes at the ships parked by the dock."

Di Bowei was stunned for a moment and looked at the captain in disbelief.

"Of course, this is just an extreme situation. I believe there are many opportunities in the Busan Strait. The average water depth there is over 200 meters, which is very suitable for ambushing conventional submarines with relatively high tonnage, but not very suitable for attacking nuclear submarines. With just one opportunity, we can create miracles."

Seeing that he was almost done, Jiang Xinwei knocked on the table and said, "Do you have any opinions?"

All three officers shook their heads and expressed no objection.

"It's almost done, let's go back to work." Jiang Xinwei paused and looked at Wang Yuhan.

"After ten hours, we will enter the Jeju Strait. All departments will arrange a turnover, conduct a comprehensive inspection of the system equipment, and eliminate hidden dangers." Wang Yuhan glanced at the four officers, "Although this is not our war, it must be regarded as our war. The duty of the soldiers is to obey orders, and my duty is to do our best to bring back this submarine and the officers and soldiers on the submarine. You are the backbone of the submarine. You must first understand this truth in order to convince others. No matter how many difficulties and obstacles there are or how difficult or dangerous there are, we will fight side by side. Only when we work together and advance and retreat together can we overcome the challenges and defeat the enemy."

Five minutes later, the officer returned to his post.

Wang Yuhan did not do ideological work for the sailors, but asked the officers to speak.

When the "Sea Snake" sailed towards the Jeju Strait, there was also an O4O, two O39, and two 636 submarines turned toward the Jeju Strait.

In order to make up for the vacancies of submarines on the Yellow Sea, conventional submarines belonging to the East China Sea Fleet are heading north.

Like Wang Yuhan's choice, at least four of the other five submarines chose to set up an ambush in the Busan Strait and then go to the North Korean port to replenish fuel and ammunition.

Among the four submarines, only that O4O type is an AIP conventional submarine.

Ten times are not long or short.

When passing through the Daheishan Islands, Wang Yuhan also asked the "Sea Snake" to approach the sea surface, stretched out the ventilator, and used a diesel engine to charge the battery.

Although it can use fuel cells to charge the battery, it will greatly shorten the use time of the fuel cell and also have to control the submarine degree below four cents. Generally speaking, the captain is willing to take some risks and is not willing to use fuel cells to charge the battery.

There are hundreds of islands in the Greater Montenegro Islands, most of which are uninhabited desert islands.

Using near-island routes, the "Sea Snake" used the island as cover and was not exposed by the coalition's early warning aircraft and patrol aircraft.

After entering the Jeju Strait, the submersible voyage of the "Sea Snake" dropped to six quarters.

As the water depth increases, the ocean background noise decreases, and the detection range of passive sonar is greatly increased. When it reaches the middle of the strait, Wang Yuhan also releases drag-and-drop sonar.

There are not many ships in the strait, but there are many ships, and there are several anti-submarine helicopters.

At this time, Wang Yuhan already knew that the 636 submarine ambushed the Korean frigate. When charging the battery, the "Sea Snake" used a satellite communication antenna to receive battlefield information. In order to keep it hidden, Wang Yuhan did not report the whereabouts of the "Sea Snake" to the headquarters.

There is nothing strange about the South Korean Navy strengthening anti-submarine alert in the Jeju Strait.

It was just a low voyage and in order to avoid the increased range of the South Korean anti-submarine patrol area, the "Sea Snake" arrived at the south exit of the Busan Strait after receiving the order thirty.

Wang Yuhan didn't know that the "Sea Snake" was the first Chinese submarine to arrive in the Busan Strait.

At this time, the O4O type was still sailing eastward in the Jeju Strait. After the two O39 types arrived at the western exit of the Jeju Strait, the South Korean army's anti-submarine warning was very tight, and they had to detour, enter the Korean Strait from the south of Jeju Island, and then head north to the Busan Strait. Among the two 636 submarines, only one entered the Jeju Strait. The other was caught by a South Korean anti-submarine helicopter before entering the Jeju Strait, and had to turn urgently and leave the waters controlled by the South Korean army to the west. The submarine then headed north to Shinyiju and reported to the Korean People's Army.

When the "Sea Snake" arrives, the O4o submarine closest to it is dozens of nautical miles away, and it will have to wait at least ten hours before it arrives.

Wang Yuhan did not take action because he did not have the goal to take action.

After the coalition forces stopped using large transport ships to transport combat supplies to Haiju, the number of ships entering the Busan Strait decreased sharply. Even ships heading to Busan went north from the Tsushima Strait and turned west on the north side of Tsushima Island to avoid entering the Busan Strait, which is prone to ambush.

Using towing sonar, the "Sea Snake" has appeared many ships at the south entrance of the Busan Strait.

Unfortunately, all of these ships entered the Tsushima Strait.

Although the Tsushima Strait is an open strait and Chinese Navy ships can pass harmlessly, in legal terms, attacking passing ships in the strait within the Japanese territorial waters is equivalent to breaking the ship's harmless right to pass, thus forming an invasion of the Japanese territorial waters.

In addition, relying on passive sonar, it is impossible to determine whether those ships are just freighters heading to Japan or military transport ships heading to South Korea.

The captain of the submarine understood this truth, so Wang Yuhan did not use the ships to attack.
Chapter completed!