Na Bing stared at the monotonous waveform of the screen with a large earphone in his head, and his eyelids kept fighting.
I suddenly heard a faint noise in my half-awakened ears, and the soldiers bounced up like a touch, and listened with their eyes wide open.
The noise is very weak but clear, and the screen also gives all kinds of information about the sound source.
"What’s the situation?" The captain found out that the soldiers were abnormal
"The report found that the echo of the target moving at a distance of 62 kilometers from the port side is stable … it seems to be an American nuclear submarine." The sound of the soldiers became smaller and smaller
The captain’s knife-shaped eyebrows picked "62 kilometers, are you talking to me?"
There are many factors that affect the effective distance, and the most important ones are hydrological conditions and source intensity. If the source noise is lower than the marine background, the submarine can listen to more than 20 kilometers of initiative, about 40 kilometers.
Don’t say the boat took the initiative, just didn’t hit it, and you couldn’t hear the noise more than 70 kilometers away. What about towing the array?
Na Bing called it a grievance. "It’s really 72 kilometers … There’s another starboard 19 degrees away from 54 kilometers … Captain, this is clearer than that just now!"
"How is that possible?" The captain took the headset buckle and heard the clear noise. He couldn’t help zheng.
Na Bing whispered, "Maybe it’s going fast."
"You say!" The captain stared at the soldier, but he couldn’t understand what the two submarines suddenly went crazy.
"Report!" The signalman suddenly shouted, "Headquarters orders south speed."
The captain frowned. "What is mindless?"
"I haven’t received the rest yet," said the messenger.
Submarines in the deep ocean can receive long-wave communication, but the long-wave frequency is low, and the information carrying capacity is small, and the difference between receiving a message and receiving it cannot be half an hour.
Without hesitation, the captain ordered, "Adjust the direction of the horse and speed south!"
A submarine hidden in the deep ocean turned south at a maximum speed of 30 knots per hour.
Generally speaking, the headquarters should give a signal to the submarine. After the submarine floats, the headquarters of the high-frequency station exchanges data, but today it is different and no signal is given at all.
During the voyage, the submarine kept receiving information from the headquarters and gradually pieced together the truth of the incident.
Until this time, the captain didn’t know that the alien had landed from the South Pole. At last, White Headquarters didn’t give any floating signal-the submarine had to dive into the water for 24 knots to reach 30 knots, just to grab these six knots!
Not only did submarines in the depths of the ocean receive orders, but all submarine bases also received orders to sail at the first time. Except for a slipway that could not move, there was one ship left, which was counted as a submarine that could swim, and all of them tried their best to run to the South Pole.
Countries have dispatched more than submarines, aircraft carriers, amphibious landing ships, destroyers, frigates … It is necessary to have the ability to anti-submarine naval vessels to sail a variety of anti-submarine equipment, and a large network is gradually taking shape.
The navy did not expect that the surface fleet would actually have a day against the alien fleet, which really made people feel deeply touched.
However, the earliest intervention was still the celestial satellites, whose sharp eyes looked through the ocean to find traces of alien warships
At that time, satellites did find many alien warships, but as time went on, more and more alien warships disappeared into the depths of the ocean.
Satellites can find targets in water and shallow water, and once they dive into the dark deep sea, they will lose their targets.
Generally speaking, all countries have vowed to find out the alien warships that have sneaked into the ocean.
The first to arrive near the South Pole was an American destroyer. The warship immediately released the towed sonar to monitor the abnormal noise of the water.
This thing can monitor up to 100 kilometers, which is much more effective than submarines. However, the alien warships didn’t find it, but they turned out several fast-moving submarines first … They made too much noise.
Submarine noise is nothing, and what is more difficult is that no one knows the noise characteristics of alien warships!
There are many strange sounds in the ocean. During normal working hours, we always filter out these random sounds and monitor suspicious sounds.
However, without the noise feature, the filter becomes a decoration, and it is necessary to pick out the sounds that are most likely to belong to alien warships from the messy ocean background
It’s easier said than done, and it’s not difficult. Fortunately, the navy is not short of talents in this field.
The process of setting up the space fleet in various countries is quite different, and too many talents have been drawn from the navy, but the radar of the space fleet has not been accepted, so most of the talents in this area have stayed in the navy
Moreover, countries are not blindly looking for it, but also input the shape of alien warships into supercomputers, through which they can calculate what kind of noise the alien warships will produce when sailing in water, and the basis for the fleet to search for enemy ships.
However, the towing array didn’t find the captain, so he realized that he had fallen into a misunderstanding and put the usual anti-submarine program into an alien warship.
After realizing this, he immediately changed his tactics, withdrew the towing type and took the initiative to find the enemy.
The huge slapping water is far from all kinds, and it is filled with the eardrums of the soldiers, but something is not heard at all
The captain thinks that the noise generated by an alien ship that big is not in line with the hydrodynamics must be very obvious, but at present, nothing has been found. Either the enemy ships have not entered this sea area or they have sunk to the bottom of the sea.
The top management of the US military strongly agreed with this opinion, and Ma took corresponding actions.
Later, an anti-ship entered the search sea area and released twelve "torpedoes" into the water.
This is a kind of underwater diving robot, which can work in the seabed for four to six hours all year round. If an alien warship really sinks, these robots are the most suitable equipment for searching enemy ships.
Not long after the robot launched the water, it was suddenly discovered that the water had a group of special targets with very fast speed and very consistent direction.
They float from the bottom of the sea at a very high speed and quickly approach the water surface.
Chapter 1114 Far water cannot solve near thirst
Before the soldiers could figure out what they were, a group of alien fighters suddenly emerged from the water and quickly spread their wings and rushed to the destroyer not far away.
The destroyer didn’t expect the aliens to have such a good hand. The officers and men of the ship have been in a state of readiness. As soon as the captain ordered the anti-missile on the front deck to launch the near-anti-gun immediately, they were ready for fire.
The rocket launcher is one step ahead of the missile. When the fire rocket warship explodes, each rocket will form an umbrella-shaped smoke screen. The smoke screen will immediately cover the warship, and the water surface will form a curtain wall that blocks the warship.