Into Unscientific

Students who have been torpedoed should know this.

Torpedoes are different from ordinary missiles, and their working principle is actually very complicated.

This still involves the incompressibility of water.

As everyone knows.

Most ammunition has explosives inside. When the explosive explodes, a large amount of high-temperature and high-pressure gas will be generated in a short period of time.

These gases spread extremely quickly, and the energy of this diffusion is the source of the lethality of some weapons.

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

When 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 five orders of magnitude lower than that of air, so the gas diffusion energy can rush directly through the water body without compressing it, forming a shock wave.

This is the "impact energy" in torpedo design.

In water, gas diffusion energy will turn the water into bubbles, and the bubbles will expand.

Due to inertia.

When the bubble expands to the point where the internal pressure is equal to the external water pressure, it does not stop but continues 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 until the internal and external water pressures are equal, it will not stop and will continue to be compressed.

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

It is precisely for this reason.

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

This kind of bullet must first have armor-piercing capabilities, that is, it must be able to break through the metal shell of the torpedo.

At the same time, the bullet must ensure that after the bullet is fired into the torpedo, the impact energy of the torpedo escapes horizontally or upward, otherwise a situation will occur - the torpedo explodes, and at the same time the bubble pulsation phenomenon generates a huge shock wave, causing a Wang Anyi, who was more than a hundred meters away, also exploded into the shape of Fitzgerald's brain.

Fortunately.

This time, the sniper rifle in Zhang Taofang's hand happened to have this ability.

This sniper rifle was originally an M1944 Mosin-Nagant, an old rifle with a caliber of 7.62 mm. Zhang Taofang was holding another M1944 Mosin-Nagant of the same model on the Peninsula battlefield. Killing all around, creating a sniper legend.

However, the legendary weapon that annihilated 214 Japanese soldiers across the sea has been included in the Volunteer Army Museum. In addition, 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. Made of steel.

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

In fact, the rabbits had already mastered this technology before Xu Yun appeared. Two years ago, in order to solve the requirements of light weapons planning for large-caliber machine guns to reduce their mass, be decentralized to battalions, and be used for both high and low altitudes, our country began to develop 10.5mm anti-aircraft guns. machine gun.

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

However, the armor-piercing performance is still not up to standard. The penetration rate of shooting 20mm vertical armor steel plates from a distance of 300m is only 65%, and it has not yet been finalized.

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

This time, considering that some accidents might occur during the battle for the data cabin, the organization equipped the modified M1944 Mosin-Nagant sniper rifle with special steel needle bullets and sent him to accompany the team to carry out the mission. Task.

Today, Zhang Taofang is a big boss of the Air Force, and fishing at sea is also part of the Air Force system. The two are connected.

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

The reason why the organization arranged such a move was mainly because Xu Yun mentioned that in the original history, the Maple Leaf Kingdom's patrol boats would use machine guns to shoot at the water surface to interfere. Unexpectedly, the Maple Leaf Kingdom's patrol boats were not seen, but four missiles aimed at them were seen. Wang Anyi went to the torpedo.

In this case, Zhang Taofang took action decisively.

"."

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

"Xiao Li, you'd better let the comrade in charge of reconnaissance fly around again. The torpedo weapon is too concealed and it's too difficult to find it with just your eyes."

"I remember that the structure of a submarine is very special. After firing a torpedo from the front, it can turn around and fire again."

"Not to mention that there are more than one submarine around us. If any thief sneaks in and fires a few rounds, Captain Wang and the others will be in danger."

Li Shan's expression became serious when he heard this:

"clear."

Although Zhang Taofang is known as the 'Sniper God', this is just a title, and some abilities still cannot escape the human category.

For example, on the endless sea, trying to detect where a torpedo appears with the naked eye is basically a fantasy.

Although Zhang Taofang had found and destroyed the torpedo before, he still relied on the prompts from the reconnaissance plane - the reconnaissance plane reported the position. Zhang Taofang spent time searching and aiming before he could hit the target with one shot.

The reason why the torpedo exploded in an area 150 meters close to Wang Anyi was certainly due to the range of the sniper rifle, but it was mostly due to the fact that the above processes took a lot of time.

Once the reconnaissance plane discovers the torpedo trajectory for more than ten seconds at night, many things may 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 bumped into Shu Xingbei, who hurriedly walked out of the cabin:

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

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

"Professor Shu, what did you say? Did the captain get the data module?"

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

"What I just saw with the telescope is that Captain Wang has successfully merged with the data module."

Shu Xingbei didn't even notice it himself.

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

At least before today, he would never have taken the initiative to have so many exchanges with a 'mud-legged' guy 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 this. After hearing Shu Xingbei's words, he immediately took the telescope and looked into the distance.

as expected.

It could be clearly seen through the telescope that Wang Anyi, who was wearing chemical protective clothing, had swam to the side of the data cabin and held the buoy of the data cabin tightly with both hands.

At this time, due to ocean currents, the sea area where Wang Anyi obtained the data cabin was more than three hundred meters away from the carrier-based ship.

"Very good!"

Upon seeing this, Li Shan waved his fist vigorously and looked at Zhang Taofang aside:

"Comrade Zhang, the captain has obtained the data module!"

Zhang Taofang nodded slightly when he heard this, and continued to lie on the deck and entered a standby posture.

"Xiao Li."

At the same time, another man with a dark complexion and a Chinese character came out of the cabin. This man was Feng Zhiyou, the deputy captain of the commando team, and the highest person in charge of the ship after Wang Anyi disembarked:

"Xiao Li, hurry up and get back to the helm. Now we are ready to start the decisive battle!"

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

like he said.

Wang Anyi's successful acquisition of the data cabin did not make the rabbits breathe a sigh of relief. On the contrary, the most difficult moment came next.

because

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

The first countdown device is the indicator program, which automatically emits dye to mark its position after seven minutes, the theoretical maximum duration of the surge.

As for the second program, it is a self-destruction program. If the correct password is not entered within thirty minutes, it will self-destruct. (Note: I wrote 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 rush. Please modify it here)

True.

Wang Anyi, as the top person in charge of this project, had already mastered the specific password before leaving China, and could 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 is eliminated, if Wang Anyi and the others have another accident and the data cabin falls into the hands of the other side of the sea, then the rabbits' experiment will be in vain.

Therefore, Wang Anyi's approach must be to do nothing and return directly to the ship with the data cabin. She will not enter the password until she is on the deck.

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

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

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

"Xiao Li, use all your power, go over and support the captain! Everyone else is here, load the bullets for me!"

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

"clear!"

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

Although the speed of dispersing more than ten people into the sea is slower, it is at least more stable - even if half of the people die, the other half can get the data cabin.

But things are different now.

Now Wang Anyi has obtained the data cabin, and at the same time, the command ship from behind has also arrived.

In this case, even if the carrier-based boat is destroyed by a torpedo, Wang Anyi and the others will still not be trapped in an isolated and helpless situation.

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

Actually.

At this time, it was not just the rabbits' carrier-based boats that set off, but several other tracking boats around them also began to rush to the scene.

The finals have begun!

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

"call"

Wang Anyi held tightly to the sealing line of the data cabin with both hands, her chest rising and falling violently.

The high load of running around and the cold sea water made his energy at this time almost exhausted - even though he was only swimming a distance of two to three hundred meters, due to the presence of nuclear radiation at the site, the protective suits of Wang Anyi and others were all worn out. It is a fully enclosed structure, and the oxygen supply relies on the oxygen bottle on the back. In addition, there are various undercurrents under the sea, making it much more difficult to move than normal freestyle swimming.

Just when Wang Anyi was trying his best to regain his strength, a shout suddenly sounded from beside him:

"captain!"

Wang Anyi looked around and found two figures wearing the same clothes as herself appeared behind her, with the names "Chen Hongxing" and "Sang Adi" written on their foreheads.

Bang bang bang.

Wang Anyi patted the water twice as a greeting, and then shouted without even mentioning the other person's name:

"You're here just in time, come on, pull this thing back with me!"

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

Nowadays, in addition to his mother, Sang Adi's family also has a younger brother and a younger sister. This boy's biggest dream is to drive a tank, but he accidentally joined the navy.

After hearing what their captain said, Chen Hongxing and the two men immediately accelerated and swam to Wang Anyi's side.

With the appearance of the two helpers and the fact that his physical strength had recovered a little, Wang Anyi immediately started to rush towards the direction he came from.

Along the way, Wang Anyi also saw many white heads dressed in the same clothes as himself, but there were also some enemies dressed up as friendly troops who were swimming towards here desperately.

However, the situation was critical at this time, and Wang Anyi didn't bother to count how many friends and 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 three swam back, a row of "small water drops" splashed on the water in front of them.

Then two seconds passed.

Da da da.

There was another burst of gunfire, and Wang Anyi's right arm suddenly stabbed, and the seawater around the arm was instantly dyed red.

At the same time as severe pain came from his arm, Wang Anyi 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 by Furry Bear!