Chapter 781 The Final Round Is Here!

Students who have been bombed by torpedoes should all know this.

Torpedoes are different from ordinary missiles. Their working principle is actually very complicated.

This still involves the incompressibility of water.

As we all know.

Most ammunition is filled with explosives. When the explosives explode, a large amount of high-temperature and high-pressure gas will be generated in a short period of time.

These gases diffuse rapidly, and the energy of this diffusion is the source of the lethality of some weapons.

If it is a kill bomb, let the gas diffusion energy break the shell, forming a large number of high-speed fragments, and let the kinetic energy of these fragments kill.

If it is an armor-piercing bomb, let the gas diffusion energy compress the metal cover to form a high-temperature and high-speed metal jet, and let the metal jet penetrate the armor.

When the gas diffuses in the air, since the gas can be compressed, the gas diffusion energy must first compress the air, and then rush out to form a shock wave, which consumes part of the energy.

The compressibility of water is 5 orders of magnitude lower than that of air, so the gas diffusion energy can rush directly to form a shock wave without compressing the water body.

This is the "impact energy" in torpedo design.

In water, the energy of gas diffusion turns water into bubbles, which expand again.

Due to inertia.

When the bubble expands to the point where the internal pressure is equal to the external water pressure, it will not stop but continue to expand.

This makes the internal pressure of the bubble less than the water pressure, and the water will come back to compress the bubble.

Also due to inertia, when the bubble is compressed to the point where the internal and external water pressures are equal, it will not stop but continue to be compressed.

Therefore, the air pressure inside the bubble is greater than the external water pressure, so it expands again, and the cycle repeats again and again until the internal and external pressures are finally balanced - this process is the "bubble pulsation" in underwater explosion theory.

It is for this reason.

To destroy a torpedo traveling on the surface of the water, the bullet required must also be very special:

This bullet must first have armor-piercing ability, that is, it can break through the metal shell of the torpedo.

At the same time, the bullet must ensure that after entering the torpedo, the impact energy of the torpedo is dissipated horizontally or upwards, otherwise a situation will occur - the torpedo explodes, and the bubble pulsation phenomenon produces a huge shock wave, which makes Wang Anyi, who is more than 100 meters away, explode into the shape of Fitzgerald's brain.

Fortunately.

The sniper rifle in Zhang Taofang's hand this time just has this ability.

The original body of this sniper rifle is the M1944 Mosin-Nagant, an old rifle with a caliber of 7.62 mm. At that time, Zhang Taofang used another M1944 Mosin-Nagant of the same model to kill all sides on the battlefield of the peninsula, creating a legend of the sniper god.

However, the legendary weapon that annihilated 214 devils across the sea has been included in the Volunteer Army Museum, and its own situation is not suitable for actual combat.

The M1944 Mosin-Nagant assigned to Zhang Taofang by the organization this time has undergone a certain degree of modification. For example, the barrel has been thickened from 7.62 mm to 12.7 mm, and the receiver is made of cast and ground aluminum instead of U steel.

At the same time, a hardened steel adapter is added to the interface of the barrel, which can guide the gas to the piston chamber behind the recessed part of the rear of the bolt through the gas guide tube on the top of the barrel, etc.

In fact, the rabbits had mastered this technology before Xu Yun appeared. Two years ago, in order to solve the requirements of light weapons planning for reducing the weight of large-caliber machine guns, delegating to battalions, and dual-purpose high-altitude and flat-altitude, my country began to develop 10.5mm anti-aircraft machine guns.

At that time, Factory 451 developed a 10.5x95mm anti-aircraft machine gun bullet, which increased the initial velocity by nearly 20% compared with the 12.7x108mm anti-aircraft machine gun bullet, reduced the recoil impulse by 27%, and reduced the total bullet mass by 20%. It can penetrate 10mm armored steel plates at a distance of 1500m.

However, the armor-piercing performance still did not meet the standard. The penetration rate of 20mm vertical armored steel plate at a distance of 300m was only 65%, and it was not finalized in the end.

However, this nearly abandoned project produced many achievements in the improvement of firearms. At that time, Mr. Lin Maoxiang even tinkered with a shoulder-fired anti-aircraft gun to shoot helicopters.

Considering that there might be some accidents in the competition for the data cabin, the organization equipped this modified M1944 Mosin-Nagant sniper rifle with special steel needle bullets and sent him to perform the task with the team.

Today, Zhang Taofang is a big shot in the Air Force, and fishing at sea is also an Air Force system. The two are connected.

As for the steel needle bullets equipped with this gun, they are also the research and development results of the predecessor of the 871 project. However, this thing is different from the 30mm steel needle bullets in later generations. It is mainly used for fixed-point attack.

The reason why the organization arranged this was mainly because Xu Yun mentioned that in the original history, the patrol boats of Maple Leaf Country would use machine guns to strafe the water surface for interference. Unexpectedly, the patrol boats of Maple Leaf Country were not seen, but four torpedoes heading towards Wang Anyi were seen.

In this situation, Zhang Taofang took decisive action.

"."

Then Zhang Taofang looked at the sea in the distance, and said to the steering squad leader Li Shan with some worry:

"Xiao Li, you should let the comrades in charge of reconnaissance fly another circle. The torpedo weapon is too hidden, and it is too difficult to find it with your eyes alone."

"I remember that the structure of the submarine is very special. After launching the torpedo in front, you can turn around and launch it again."

"Not to mention that there are more than one submarine around us. If any of the Sun thieves sneak in to fire a few shots, Captain Wang and his men will be in danger."

Li Shan's expression straightened when he heard this:

"I understand."

Although Zhang Taofang is known as the 'sniper god', this is just a title, and some abilities are still not beyond the scope of humans.

For example, it is basically a fantasy to want to use the naked eye to find out which direction a torpedo appeared on the endless sea.

Although Zhang Taofang found and destroyed the torpedo before, it also relied on the prompts of the reconnaissance aircraft - the reconnaissance aircraft reported the position, Zhang Taofang spent time searching and aiming, and then he could hit it with one shot.

The reason why the torpedo exploded in the area 150 meters close to Wang Anyi is certainly due to the range of the sniper rifle, but more because the above processes took a lot of time.

Once the reconnaissance aircraft discovered the torpedo track more than ten seconds later, many things might not be so easy to say.

Li Shan obviously understood this at this time, so he immediately prepared to return to the cabin to contact the helicopter.

However, he had just taken two steps when he ran into Shu Xingbei who hurried out of the cabin:

"Comrade Li, Comrade Zhang, Captain Wang has swam to the data cabin!"

Li Shan was startled when he heard this, and then his voice rose a few degrees:

"Professor Shu, what did you say? The captain got the data cabin?"

Shu Xingbei nodded heavily, and handed the telescope in his hand to Li Shan, explaining:

"I just saw it with the telescope. Captain Wang has successfully reunited with the data cabin."

Shu Xingbei himself didn't notice it.

After witnessing Wang Anyi personally leading the team to "die", his attitude has changed slightly compared to before.

At least before today, he would never take the initiative to communicate so much with a "mud leg" like Li Shan.

This is still a long way from acceptance and recognition, but at least it is a good sign.

But Li Shan didn't care about these. After hearing what Shu Xingbei said, he immediately took the telescope and looked into the distance.

As expected.

Through the telescope, it can be clearly seen that Wang Anyi, wearing a chemical protective suit, has swam to the data cabin and held the buoy of the data cabin tightly with both hands.

At this time, due to the ocean current, the distance between the sea area where Wang Anyi got the data cabin and the carrier boat has exceeded more than 300 meters.

"Great!"

Li Shan waved his fist vigorously when he saw this, and looked at Zhang Taofang at the side:

"Comrade Zhang, the captain got the data cabin!"

Zhang Taofang nodded slightly and continued to lie on the deck in a standby posture.

"Xiao Li."

At the same time, a dark-skinned square-faced man walked out of the cabin. This person was Feng Zhiyou, the deputy captain of the commando team, and the highest person in charge of the carrier boat after Wang Anyi got off the ship:

"Xiao Li, you hurry back to the rudder, now we are ready to start the decisive battle!"

Feng Zhiyou's tone was full of murderous intent, and he even loaded the magazine on the gun in his hand while speaking!

Just as he said.

Wang Anyi's successful acquisition of the data cabin did not make the rabbits feel relieved. On the contrary, the next moment was the most difficult.

Because

According to the original plan of the design team, there were two countdown devices on the data cabin.

The first countdown device was an indicator program, which would automatically emit dye to mark its position after seven minutes, which was the maximum time the surge theoretically lasted.

As for the second program, it was a self-destruction program. If the correct password was not entered within thirty minutes, it would explode. (Note: It was written as fifteen minutes before, which was the countdown time in the original history, but now fifteen minutes seems not enough in this salvage situation. After all, it took more than ten minutes to travel. I will modify it here)

Indeed.

As the highest person in charge of this project, Wang Anyi had already mastered the specific password before leaving China, and could completely eliminate the risk as soon as he came into contact with the data cabin.

But Feng Zhiyou was sure that Wang Anyi would never do this.

Because once the risk of self-destruction of the data cabin was eliminated, if Wang Anyi and his team had any accidents and the data cabin fell into the hands of the other side of the sea, the rabbits' experiment would fail.

Therefore, Wang Anyi must do nothing and return to the carrier boat with the data cabin directly, and will not enter the password until he is on the deck.

And if there is any interference during the period that causes the time limit to exceed. Then the ending is destined not to be beautiful and happy.

So as Feng Zhiyou said, the real decisive battle has only begun now.

Then Feng Zhiyou took a deep breath and continued to say to Li Shan:

"Xiao Li, full power, go to support the captain! Everyone else, load the bullets for me!"

At this time, Li Shan had returned to the rudder, and he shouted immediately after hearing this:

"Understood!"

The reason why Wang Anyi chose to swim instead of driving the boat before was mainly because he was worried that the carrier boat would be too big a target. Once it was destroyed by a torpedo, they would completely lose the opportunity to snatch the data cabin.

Although the speed of more than a dozen people going to the sea separately was slower, it was at least more stable-even if half of the people died, the other half could get the data cabin.

But now it is different.

Now Wang Anyi has got the data cabin, and the command ship behind has also rushed over.

In this case, even if the carrier boat was destroyed by a torpedo, Wang Anyi and his men would not be left isolated and helpless.

Not to mention that there is Zhang Taofang hanging on the wall, the sailing is relatively safer than before - at least the submarine will have concerns when launching torpedoes.

In fact.

At this time, it is not only the rabbits' ship-borne boats that set off, but also several other tracking boats around them.

The final round has begun!

However, these reinforcements are still some distance away from the real decisive battle center, so the first batch of people who go to the sea will still be the ones who really decide the outcome of this battle.

"Huh"

Wang Anyi held the sealing line of the data cabin tightly with both hands, and his chest rose and fell violently.

The high-load running and the cold sea water made his energy on the verge of exhaustion at this time - although he swam only two or three hundred meters, due to the nuclear radiation at the scene, Wang Anyi and others' protective suits were all fully enclosed structures, and the oxygen supply depended on the oxygen cylinders behind them. In addition, there were various undercurrents under the sea, and it was much more difficult to move than normal free swimming.

Just as Wang Anyi was doing everything he could to recover his strength, a shout suddenly rang out beside him:

"Captain!"

Wang Anyi looked over and found two figures wearing the same clothes as himself behind him, with the names "Chen Hongxing" and "Sang Adi" written on their foreheads.

Pa pa pa.

Wang Anyi slapped the water twice on the surface of the water as a greeting, and then shouted without even mentioning the other party's name:

"You came just in time, come on, pull this thing back with me!"

Chen Hongxing and Sang Adi are both veterans under Wang Anyi. Chen Hongxing's situation is needless to say. Sang Adi is also the son of a martyr, and his father died on the battlefield of the peninsula.

Now Sang Adi's family has a younger brother and a younger sister besides his mother. This kid's biggest dream is to drive a tank, but he didn't expect to join the navy in a muddle.

After hearing the words of their captain, Chen Hongxing and the others immediately swam to Wang Anyi's side.

With the appearance of two helpers and his own physical strength restored a little, Wang Anyi immediately started to rush back to the way he came.

Following the direction of the way he came, Wang Anyi also saw a lot of white heads dressed like himself, but there were also some enemies who were obviously not dressed as friendly troops and were swimming towards here desperately.

However, the situation was critical at this time, and Wang Anyi didn't have the mind to count how many friendly enemies there were. He didn't even know if any of his own people had died.

Da Da Da——

Just after Wang Anyi and the other two swam back for a while, a row of "small water droplets" splashed on the water in front of them.

Then two seconds passed.

Da Da Da.

Another burst of gunfire, Wang Anyi's right arm suddenly stabbed, and the sea water around his arm was instantly dyed red.

While the arm was in great pain, Wang Anyi also quickly identified the model of the gun through the sound of the gun:

PPS-43.

This is the prototype of the rabbits' Type 54, produced in. Bear!