The sea breeze has always come and gone without a trace, and as soon as the "Hanjing" set sail, a strong wind blew on the sea. The oncoming southeast wind blew in from the long underground channel, with a loud whining sound, and the ** that had begun to rise slowly in the channel set off huge waves in an instant, slapping the bow of the "Hanjing", surging through the flat missile deck, and hitting the towering conning tower enclosure.

"Speed up, move forward," Chen Jianhong gave a new order. His orders were instantly transmitted to the control room via a communicator on the command platform. The Hanking then began to accelerate, and the huge propeller stirred up higher and bigger waves at the stern.

The wind and waves became stronger and stronger, the submarine began to sway from side to side, and the bodies of the people standing on the conning tower shook more and more. But Chen Jianhong was completely unmoved, and he was even a little lucky. Such weather and visibility in such a dark night are extremely unfavorable for the take-off and observation of the anti-submarine aircraft of the army of the Union of Minia stationed in Jepen, and for the "Hanjing", which is about to dive to the bottom of the sea, this bit of wind and waves is not even a fart.

However, Chen Jianhong became more and more interested in the guys behind him, and he swayed his body skillfully to offset the shaking and jolting from the hull, while secretly observing several "guests" behind him. Those men, now standing on the command platform, their feet like nails stuck in the ground, their bodies not moving, the waves and the shaking of the hull of the boat, as if they had no effect on them at all. The youngest fellow with dark and bright eyes, and the one who liked to shout the most, was still looking around with interest.

"What a couple of hits!" Chen Jianhong admired in his heart, with this hand, no number of submarine veterans who wandered and shuttled on the bottom of the sea all the year round could not be compared, I really don't know what kind of troops these guys are. "But now is not the time to think about these issues!" Chen Jianhong reminded himself that in the next period of time, he must pay full attention.

"Control room, depth of water?" Chen Jianhong asked through the communicator.

"Keel to the bottom of the sea 100 meters."

"Accelerate, move forward two; Left side of the rudder ten. Chen Jianhong issued a new directive.

The "Hanjing" slowly accelerated, the huge body of tens of thousands of tons trembled slightly under the impetus of the engine, the bow of the ship stirred up a larger arc of waves, and the black sea water instantly turned into a white curling wave, surging over the flat missile deck, splashing in front of the shell of the control tower, making a loud sound.

"Control room, depth of water."

"Keel to the bottom of the sea 130 meters."

"Maintain speed, forward two."

"Yes, keep the speed and go forward two". Commands repeated in the control room.

Chen Jianhong looked at the channel in the dark, his eyes unblinking. Every time he sails, he has the same posture and the same expression.

The Pangu-class strategic nuclear submarine has been in service for more than two years, and Chen Jianhong is the first commander of what is currently the largest submarine in the world. Compared with the "096" Han-class nuclear submarine he commanded before, the Pangu class is undoubtedly more advanced, more powerful, quieter and more charming, but his biggest weakness is also obvious - this guy is too big, even if he has unimaginable power and the latest towing device, but the size is too large, so he has more difficulty when changing the depth, whether it is up or down, it takes an extremely long time.

And the intensive reconnaissance of a large number of anti-submarine aircraft of the Minnesia Federation and the Jeppen army forced him to command his own submarines to complete the dive in the shortest possible time.

Although every officer and every soldier on this submarine is a battle-hardened naval elite drawn from various submarines, and has undergone a long period of running-in training, and the channel under his feet was designed with this in mind, and an extremely long underground channel was specially dug and cleverly camouflaged, Chen Jianhong had to pay full attention and be meticulous every time he set sail.

But of course Chen Jianhong's inner thoughts will not be seen and heard by the sailors, he is wearing a beautiful linen suit, standing on the command platform, it is the Dinghai Shenshen Needle with a serious expression, but the command is determined.

"Control room, depth of water."

"Command platform, 150 meters below the keel."

"Prepare to dive." Chen Jianhong turned around and said, "Evacuate the command platform." The lookout and the navigator replied yes and took the lead out of the conning tower. Lei Dong and the rest of the team followed, down the conning tower shell to the pressure chamber inside the submarine, and then down into the control room.

After a short time, Chen Jianhong, who had checked the airtightness of the hatch, immediately entered the control room, and behind him, a second lieutenant on duty closed the hatch, and the automatic lock "clicked", and the hatch was tightly closed.

"Check the hull!" Chen Jianhong walked to the periscope and ordered while observing.

"The hull is sealed." The navigator replied.

A series of commands "check the submersible device, check the electrical circuit, check the hydraulic indication, check the ...... of the reloading tank" came out of Chen Jianhong's mouth quickly.

"Mechanical inspection completed, normal!"

"Circuit check complete, normal!"

"Hydraulic indication check completed, normal!"

"The reloading tank is normal, and the water inlet is ......!" After a series of answers, the captain concluded: "The dive is ready." ”

"Dive!" Chen Jianhong quickly gave the order, but his eyes were always on the periscope, and the chief navigator sounded the diving alarm, and the whining whistle began to echo in the submarine.

"The main ballast water tanks are flooded. Roll out the horizontal rudder, dive and turn the rudder ten degrees," the navigator gave a series of orders, and the posts began to operate rapidly.

When the vent hole on the top of the ballast tank is opened, seawater pours in from the bottom of the water bilge, squeezing buoyant air out of the vent, and the sound of sizzling air flow sounds.

The whole process of diving was too time-consuming, and Chen Jianhong's eyes never left the periscope during the whole process.

"Reach periscope depth." Ten minutes later, Chen Jianhong let out a sigh of relief, his eyes left the periscope, and looked at several team members standing on the side, "Are you interested in appreciating the sea?" ”

The dark cloud shouted "Of course there is, of course there is", and walked away, but he didn't expect the figure in front of him to flicker, and Lei Dong was already in front of him, and his eyes were attached to the periscope.

"Damn!" The dark cloud screamed depressedly and raised a middle finger behind Lei Dong, but how could this action hide the Lei Dong of cultivating for Dajin? With his eyes already on the periscope, he was unceremonious, his two arms bent from behind his back, and he fiercely raised his two middle fingers.

At this time, the submarine was about to sail out of the underground channel, and the huge doorway exit in front of it was already in sight.

The periscope floated above the sea, the height was very low, and it was not a wave with sword energy that appeared in the eyes of thunder. In the distance, faintly, motorized sailboats with the word "fishing" on the bow of the ship are cruising on the sea.

After a few glances, Lei Dong felt that it was almost time to give up his position - the main thing was really not to look at, although Lei Dong said that he would not admit it, but just when his eyes were about to leave the periscope, a small black dot appeared at the bottom of the line of sight that was not noticed.

"Huh?" Lei Dong put his eyes back together, looked at it carefully, his face suddenly became serious, and Huo Ran turned around: "Sonar buoy!" ”

Wuyun and several other team members were moved. Several pairs of eyes looked at Chen Jianhong in unison.

Chen Jianhong raised his eyebrows, as if he was very surprised, but he didn't make any moves, nor did he give any instructions, just waved his hand lightly, signaling Lei Dong to continue.

Lei Dong was a little puzzled by Chen Jianhong's actions, frowned, and glanced around, only to find that several other submarine officers and soldiers also looked surprised, and he was even more puzzled, turned around, and observed on the periscope again.

Wuyun and the others were also puzzled, it was a sonar buoy! Why didn't this group of navies react at all?

A sonar buoy is a buoy-type sonar device that detects underwater targets. It is a kind of underwater acoustic remote sensing detector. It is composed of buoy sonar system with buoy signal receiving and processing equipment, etc., which is used for aviation anti-submarine detection and fixed sonar surveillance system for early warning of underwater submarines.

According to the equipment object, sonar buoys can be divided into aviation sonar buoys and anchor sonar buoys, according to the way of work, divided into active and passive, according to the directional mode, divided into directional and non-directional (omnidirectional) type, according to the transmission form of the buoy signal, divided into wired electric and radio sonar buoys.

After the buoy is empty, it floats in the water in an upright position, the umbrella-like antenna sticks out of the sea, and the sonar base array comes out of the shell, and its gravity cable sags to the predetermined working depth. After about 1 minute, the power supply is powered, and the buoy is in working condition. After the continuous working time, the self-sinking device is turned on, and seawater is injected into the buoy to sink to the bottom of the sea. When the base array receives the submarine radiated noise (passive type) or the echo signal reflected by the target (active type), the sonar buoy in the water is in a working state, and the ultra-high frequency signal is formed through sound frequency amplification, processing and modulation, which is radiated to the air by the antenna for the buoy signal receiving and processing equipment on the aircraft to receive and monitor.

It can be said that this thing is the outpost of the enemy's anti-submarine aircraft to reconnoiter and monitor the movement of submarines, especially for submarines that have just left their home ports and have not yet dived deeply, the recognition of this thing is extremely amazing.

However, judging from the expressions of Chen Jianhong and other naval officers and men, there was no trace of worry at all.

Do they have another trick? Wuyun looked at Chen Jianhong, and then looked at Lei Dong. found that the expression on Lei Dong's face had changed dramatically again.

It was a ridiculous expression, as if he had seen something incredible, his expression became more and more weird, more and more exciting, until finally, the swear words blurted out: "~ Is this okay?" ”

The dark clouds were itchy by the thunderous facial expressions and words, and asked with a white face: "What's the situation, boss, what did you say-"

Lei Dong turned around, with a strange smile on his face, and pulled the dark clouds to the periscope: "See for yourself!" ”

On the vast sea, groups of fishing boats seem to be under overall command, and as if they are "gangsters" who have drawn their spheres of influence in advance, and these fishing boats form a phalanx, just like the formation of the navy when facing the enemy. In the blink of an eye, dozens of sonar buoys on the sea surface were swept away, and the fishing boats also floated away with rich trophies.

The sonar buoy that was fished onto the ship was just a black spot in the periscope, but with superhuman eyesight, the dark clouds were still easy to distinguish, it was the latest model of the NNS-1600 aviation sonar buoy of the Commonwealth of Minia, a kind of active buoy, with a endurance of up to 48 hours, and a positioning distance of more than 6 nautical miles for submarines with a speed of less than 6 knots in level 3 sea conditions. Such a good thing was actually swept away, I don't know if the commander of the Minian army, who wasted a lot of effort to throw himself into the coastal waters of the Republic, will spew out a mouthful of blood!

Of course, what made the expression on the dark cloud's face more and more exciting was not the buoys themselves, but the eight large red characters on the buoys, which were written in Chakner's unique square characters-

"Sonar is useless without copper."

……

Wuyun turned his head, looked at Chen Jianhong and a cadre of submarine officers and soldiers, and blurted out a sentence exactly the same as Lei Dong: "it~ It's okay like this?" ”

"Put away the periscope and dive down to 100 meters. Slow down to advance one. Turn on all passive sonar systems. Chen Jianhong didn't pay attention to the meaning of the dark clouds at all, gave an order leisurely, turned around and walked away, humming the famous song in his mouth: "The hard-working and brave Chakner people, high-spirited into the new era, aha, ha, ha, we are high-spirited, into the new era......"

Behind him, the thunderous clouds looked at each other and were dumbfounded.