Thunder Strikes Back

Chapter 89 Long Wave Communication
Singh's phone call to the Navy's Eastern Military Region Command, the secretary told Lieutenant General Vijapat, who was reading the report, that the Ministry of Defense had urgent matters to find him, and he thought he wanted to talk to him about the delay in the arrival of the carrier-based MiG fighter jets. , but after picking up the phone, Singer's topic was beyond the lieutenant general's expectations.Singer told the lieutenant general a reliable intelligence that a Chinese nuclear submarine was hiding in the waters off the east coast under his jurisdiction.However, Singer did not criticize the Navy's capabilities as critically as in the past. He just asked the Eastern Fleet to find the submarine and sink her without hesitation.The lieutenant general questioned whether this was necessary, since that location had not yet entered territorial waters and the two countries were not at war.Singh said that this is what the Prime Minister meant, and the enemy must not be allowed to spy on India at such a close distance.

Vijapat thought for a while, and this kind of remark without regard to political risks really seemed to be the prime minister's style.Then he proposed several solutions. One is to use the existing anti-submarine helicopters in the base to search. The disadvantage is that the effect of such helicopters on nuclear submarines that do not leak is not very ideal, especially considering the attenuation of the shallow sea area off the coast of Chennai. coefficient, as well as the dwell time of the hanging sonar, it is not easy to detect nuclear submarines in an uncertain range, unless active methods are used to increase the detection distance.The lieutenant general hinted that the search could be done actively by throwing bombs and sending out sound waves.

Singer did not comment, he just waited for the lieutenant general to speak.Another method proposed by Vijapat is to use low-frequency communication to recall the attack nuclear submarine USS Chakra, which is monitoring the US fleet. Complete, it is India's best anti-submarine force, but it is not known where the exact location of the Chakra is. Judging from the movement of the US fleet, it is estimated to be near the Cocos Islands. The problem is that if it is called back to intercept Chinese submarines, it will take Time, especially long-wave communication is not easy to keep secret is a problem.Once this plan was proposed, it was immediately rejected by Singer. He didn't have the temper to wait so long.

Vijapat then proposed a third plan, mobilizing the newly prepared domestic nuclear submarine "Anihilator" from Visakhapatnam to search. From the perspective of the situation, the enemy is in a state of ignorance. The Zer will have an absolute advantage in the search process, and because it has a full grasp of the water temperature layer and the hydrogeographic information of the area, its advantages will increase exponentially once it engages.However, the Lieutenant General did not forget to remind the Minister of Defense that he thinks this is not safe, because the power part of the Arihant has a serious problem. Last month, a sudden steam valve accident in the secondary circuit pipeline caused steam leakage and burns 2 sergeants were killed.Although the valve has been repaired, and the radiation level in the power cabin is still acceptable, the morale is not high right now.And once a problem occurs again, it can only sail with auxiliary engines or batteries.

Contrary to the Lieutenant General's expectations, Singh was most interested in the last option.But this was not all he wanted. He immediately thought of a way to implement the three plans together, and asked the Sea King helicopter to dispatch first, and act together with the Annihilator. Cheetah.But he denied Sea King's method of using bombs to create sound waves, because he felt that the anti-submarine capability of the helicopter was not reliable enough, and it would be bad if it was a surprise.

India's east coast, 17 nautical miles southeast of Chennai Port.60 meters underwater.

The 411 boat has been sailing here at low speed for several hours. This period of time is very strange, because the surrounding sea area suddenly became very quiet.On the electronic chart, there are only a few small dots moving slowly nearby.

The shortcomings of staying in this area have already emerged. First of all, it is of little value in intelligence collection.Chennai's very low frequency radio station has not issued any instructions. India's submarine fleet is not large, and there is an American fleet monitoring nearby. It is reasonable for them not to use long-wave and ultra-long-wave communication; presumably the navy has been mobilizing. Encrypted VHF communications.If the 411 boat hastily rises out of the photoelectric mast to collect radio communications on the sea, it will definitely fall into a very dangerous situation, and it is of little significance.

In terms of sonar monitoring, it can only be confirmed that the US fleet finally disappeared. The water here is relatively shallow and there is no suitable underwater acoustic channel to effectively track other warships entering and exiting the Bay of Bengal.

"Comrade captain, shall we move a bit? Go to Visakhapatnam to monitor their submarine?"

Seeing the captain Marin stepping into the command cabin again, the watch captain hurriedly asked.

"We can't go north rashly. They have a Shark class, which is probably there. Our task is not to test their anti-submarine capabilities, but to collect useful information as much as possible. Even if we maneuver, we should go west."

Marin picked up the communicator and was about to issue new instructions. The sonar monitor turned his head and shook his hand, signaling the captain and the others not to speak.There was a sudden silence in the command cabin.

Marin jumped over the sonar monitor's shoulder and saw that the voiceprint in front of him did not change. He must have heard a very subtle sound.

"The direction and distance cannot be determined, maybe in the direction of 145 or 215, very weak. A total of three times."

"What movement?"

"It's not clear, maybe a few very large fish jumped out of the water back and forth, and the sound was very dense, or the sonar buoy thrown in the air fell into the water."

"Wait and see, or they will explode a device." Marin said in a low voice.This is what he is more worried about. If the sound of the sonar falling into the water can be heard, then the enemy helicopter is almost overhead.Once the enemy uses blasting sound waves to search again, No. 411 must have nowhere to hide.This type of sonic search is very useful, even for submarines whose bases are not moving on the seabed, it can be accurately located, especially in this area where the water depth is very unsatisfactory.

After waiting for a while, nothing happened next, maybe I heard it wrong?Marin walked behind the sonar monitor sergeant.Looking at the voiceprint, there is nothing unusual.

"Maybe it's the noise made by the fishing boat." The captain said, they had been tracking several nearby fishing boats. For 24 hours, No. 411 has been trying to calculate their trajectories in and out of the port on the map to test the accuracy of inertial navigation. After all, it has spanned 3500 nautical miles since the last time the Beidou system was used to verify the inertial navigation data. During this time, the ship The submarine has been sailing underwater without raising any masts.

"It's possible, maybe it's the tuna that was surprised out of the water by them. But it seems to be a bit bigger," the monitor said uncertainly.

"Well, I think it's better to stay away from them." Marin turned around and patted the monitor on the shoulder. "Be careful with their trawling nets, and international incidents would be bad."

Marin was about to walk out of the command cabin when the translator on duty in the telegraph room walked in.

"Report, found their VLF communications."

Then he stuffed a piece of paper into Marin's hand.

There are only a few words on the paper, which read: 1470SATPURA
(End of this chapter)