On a cruiser full of servicemen, dozens of passengers were singing on deck. 1――

It was a long journey, and there was no entertainment on board, so the soldiers on board had to use this way to pass the time.

"Cherry blossoms, cherry blossoms, in the clear sky of late spring and March, there are no clouds and many clear and clean, the flowers are like clouds, and the fragrance of flowers overflows the world. Come on, come on, everyone go and see the flowers! ”

Singing and singing, several Japanese soldiers even shed tears.

Although they are all soldiers who kill people without blinking, they have been away from their hometown for many years, and singing such songs also makes them feel a lot.

But while these Japanese soldiers were still singing on the boat, they didn't know that under the sea not far away, a group of undersea demons were watching them coldly...

"How? Are you all there? ”

Standing in the shell command tower, after putting away the periscope, Liu Yun asked the adjutant beside him.

"Don't worry, you're all set!"

Hearing Liu Yun's question, Qi Lin said with a smile on the side.

Unlike other types of troops, submariners have a great uniqueness, that is, submariners in the same boat are like family. This is naturally due to the fact that staying in a closed and narrow hull for a long time deepens the communication between the crew.

Especially during the operation, it is necessary to spend a long time in the submarine.

So facing Liu Yun, Qi Lin did not use the tone of subordinates to superiors like other arms, but more of friends to friends.

Hearing Qi Lin say this, Liu Yun just smiled.

"So. Just follow the plan, attack at the same time in ten minutes! ”

"Yes!!"

Saying this, Liu Yun once again recalled everything he had just seen through the periscope.

At this moment, Liu Yun was on top of their heads. A fleet full of Japanese soldiers who had been transferred to Australia was sailing slowly there...

"As long as you can sink all these ships, no, even if you only sink half of them, you can probably sink an entire division of people to the bottom of the sea..."

Although there are many people who can swim in Japan, the sea is different, and it is still a deep sea area, so there is only a slight smell of blood. The whole sea will definitely be very lively.

Of course, it is not yet possible to judge how many Japanese soldiers there are in the fleet, but if the operation is successful, one division is definitely not too much...

"It's going to be a success..."

This time they set off from their base in the Philippines. But that's what I'm here for...

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While Liu Yun was praying for the success of the operation, the Japanese soldiers on the fleet were still singing loudly.

For them, perhaps this is the only way to alleviate the loneliness of the journey.

However, there is no way to do it, because the warships are too crowded at this time, and even the decks of some warships have become sleeping places.

This is not surprising either. At this moment, the British cruise ships Queen Mary and Queen Elizabeth don't exist as troop carriers? When it exists as a troop carrier, it is necessary to transport as many troop sources as possible. The deck has long been a place to live, and even more exaggerated is that there are hammocks in many places.

At the time of the Queen Elizabeth and Queen Mary as troop carriers. There have even been many times when the cruise ship almost capsized due to too many passengers...

Compared to these two industry experts. These warships are really nothing at the moment...

It is precisely because of this that the decks of these ships are very crowded, and many times even meals need to be brought in batches, because there are too many people.

But if it weren't for that, Liu Yun wouldn't have made that judgment......

Soon, ten minutes passed...

During these ten minutes, the Japanese were still singing, but after ten minutes passed, these Japanese seemed to be a little tired, and their singing voices gradually weakened.

However, at this time, more than ten white lines suddenly appeared on the sea...

"Wait? What is that?! ”

Although the entire ship was singing, the lookout was still dutifully patrolling his post.

Therefore, when the traces of torpedoes on the surface of the water appeared, the lookout spotted them immediately.

"Enemy attack!! Torpedo!!! ”

At the same time as the alarm was sounded, the lookout was shouting loudly.

Although the submarines of the Japanese Navy are not very well used, they are very good at anti-submarine warfare, so as soon as the alarm sounds, the warships began to evade.

However, at this time, the Wehrmacht began to phase out direct-sailing torpedoes and began to fully adopt guided torpedoes. Especially after 43 years, the technology of wire-guided torpedoes has also made breakthroughs, and new wire-guided torpedoes have begun to fully equip submarine forces―――――― which is also a matter of no choice, although acoustic self-guided torpedoes are very convenient to use, too easy to interfere with.

Today's Japanese Navy has found a way to counter acoustic homing torpedoes, that is, by adopting new jamming equipment.

Of course, none of this matters, after all, noise jamming devices are not 100% effective.

And most importantly, it is dangerous for submarines to use acoustic homing torpedoes ...

The principle of the acoustic homing torpedo is to lock onto the loudest ship 400 meters after launch, but it turns out that although the torpedo has an acoustic homing guidance head, it can be tracked according to the sound of the target, and the enemy ship needs to be quite loud to do so. Moreover, the reliability of this kind of homing guidance head is not high, and sometimes it will cause a mistake to its own side because of the sound of the search boat, so the submarine should immediately dive to a certain safe depth after launching this kind of torpedo, otherwise it will become the target of the torpedo because the sound is too loud.

This is also the reason why wire-guided torpedoes are developing so quickly, there is no way, because without inventing a new torpedo, or improving the existing torpedo, the submarine will not be able to use guided torpedoes at all.

And at the moment, the improvement of acoustic homing torpedoes is troublesome. However, the wire-guided torpedo has achieved certain results, and naturally, the line-guided torpedo has become the focus of the breakthrough.

So naturally, now there is an air force in the Navy that uses acoustic homing torpedoes. The use of wire-guided torpedoes by submariners and ships in general.

As for wire-guided torpedoes?

The torpedo directed to the target is controlled by the launch pad by transmitting commands through a wire. It is usually launched by submarines and surface ships, but can also be launched by anti-submarine helicopters to attack submarines and surface ships.

The characteristic of the wire-guided torpedo is to use a small wire or optical fiber to connect the launch platform (ship, aircraft or shore-based) with the torpedo, so that the fire control system of the launch platform and the device on the mine form a loop, which is used to remotely control the torpedo and guide the torpedo to approach, capture and attack the enemy ship, this kind of torpedo is the wire-guided torpedo. Therefore, it has advantages that are difficult to match with other torpedoes.

For targets with long distance, high speed and strong maneuverability. When the error in the determination of the moving elements of the target is large, the firing dispersion of the torpedo itself is large, or the self-guidance distance is short, the probability of the torpedo catching the target will be rapidly reduced, while the wire-guided torpedo is directly controlled by the launching ship after launch, and the torpedo can always be guided to guide the target. The probability of capturing the target is greatly increased.

In addition, because the wire-guided torpedo is directly operated by the launching ship, all the equipment that interferes with it will not work, so the anti-jamming ability of the torpedo is greatly improved. At the same time, wire-guided torpedoes can be fired at both single and multi-mine salvos, and are guided separately by the fire control system of the launching ship at the same time. Siege the same target with multiple targets or multiple mines, or even make it break away from the original target and change course to attack another target in the middle of the attack. …,

The first wire-guided torpedo was the "Skylark" torpedo developed by the Germans in World War II, and in 1950, the first generation of the mK371 electric self-guided wire-guided torpedo developed and imitated by the United States on this basis was officially put into service. The mK39, which entered service in 1957, and the mK45, which entered service in 1964, were American second-generation line homing torpedoes. The NT372c torpedo at the end of the 60s was the third generation, and the mK481 developed in 1975 was the fourth generation. Except for the United States. In terms of wire-guided torpedoes, there are also Italy's A184 types, Sweden's Tp61 and Tp42 types, and Britain's mK24 "Tigerfish" and "Whale" torpedoes.

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The ships evaded in time, but when they thought they had evaded the enemy. And when the noise jamming device was also activated, the torpedoes were still coming at them...

"How can this !!?"

Seeing as many as three white lines coming straight towards the hull of the ship, the lookout who was standing at the top was just here without saying anything, and the torpedo hit the hull...

"Boom !!"

Three explosions in a row blew three huge gaps in the cruiser's hull.

In an instant, a large amount of seawater began to pour into the warship along the gap, and a fire began to ignite inside the warship...

Crying, howling...

Soon, such voices began to be heard on the warship.

And just as they were about to call for help from the surrounding ships, the explosion sounded again, and soon two more ships sank...

"Damn, it's the submarine forces of the Chinese..."

Looking at the scene in front of him, Kazuo Yamaguchi said naturally.

"Your Excellency, what should I do now?"

"Don't do a rescue yet, send out the escort ships first, and kill all those damn submarines."

"Understood!"

Although Japanese ships are not yet universally equipped with equipment such as radar, sonar and other equipment are generally equipped on every warship.

Therefore, although the Japanese Navy still only relies on weapons such as depth charges to conduct anti-submarine warfare, it is not without confidence in anti-submarine operations―――――― of course, in this era, almost any country is using depth charges to carry out anti-submarine operations.

As for the anti-submarine torpedo, this one appeared in history in the mid-50s after World War II, and in the mid-50s, the United States made a two-plane active acoustic self-guided torpedo (also known as an anti-submarine torpedo), which can search in three-dimensional space in the water and attack submarines. In 1960, the United States was the first to develop the "Asroke" rocket-assisted torpedo (also known as anti-submarine missile), which automatically searched, tracked, and attacked submarines from the rocket carrying and flying to a predetermined point into the water.

Although the order was given, the strangest thing about Yamaguchi was, why did the noise jamming device not work?

After the Battle of the Philippine Sea. As a result of the heavy damage caused by acoustic homing torpedoes, most of the main ships of the Combined Fleet were sunk, and in the end, the Combined Fleet could only maintain a close match with the U.S. Navy, which had just recovered some of its strength, in the Hawaiian area.

Such a result. For the Japanese, of course, it was a bloody lesson.

It is precisely because of this that after the Battle of the Philippine Sea, the Japanese began to study the means of dealing with acoustic self-guided torpedoes.

However, although Japan's torpedo technology was also very advanced during World War II, after all, there was not much research on guided torpedoes, so in the end it had to turn to Germany, which was the first to develop guided torpedoes in terms of strength.

Since the current war situation is not very smooth, Germany also changed its original attitude of never giving technology if it does not give anything, but took the initiative to tell Japan the secret of the acoustic self-guided torpedo, and also taught the means of coping ―――――― noise interference...

And after obtaining this technique. Japan is also a treasure.

In the subsequent conflicts, although the Wehrmacht Navy's multi-type naval bombers were dispatched to deal with the ships of the Japanese Navy, the acoustic self-guided torpedoes were not very effective. It can also be seen from this that Japan's jamming equipment is still successful. …,

It is precisely because of these actual combat verifications that Yamaguchi and other admirals have also regained a lot of confidence.

But now...

"Strange? Why? Could it be that the torpedo technology of the Chinese has changed? ”

At this time, Yamaguchi had not guessed the head of the wire-guided torpedo, but was wondering if an improved acoustic self-guided torpedo had been developed.

"Anyway, we must send this news back home..."

Thinking so, Yamaguchi said to an officer on the side.

"Go. Send the news back to China, tell the people in the country, and say..."

Before Yamaguchi could finish talking about this, he heard an exclamation from outside.

"Torpedo !!"

This was followed by a violent explosion. Yamaguchi lost consciousness while he commanded the heavy cruiser. Also hit by multiple torpedoes ...

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"Captain, if you look at it that way. Not to mention half of it, it's not impossible to stay even if they all stay! ”

Seeing that more and more ships were hit on the sea, while the Japanese were still blindly searching for themselves on the sea, Qi Lin said with a smile on the side.

However, hearing Qi Lin's words, Liu Yun shook his head.

"I'm afraid it's unlikely, after all, we have a limited amount of ammunition..."Liu Yun sighed when he said this. If I had known it would be so effective, I wish I could have a few more..."

While Liu Yun was saying this, the Japanese ships on the sea were still searching for them.

However, although several submarines were discovered, these warships were unable to carry out anti-submarine operations under the attack of other submarines.

Like aircraft carriers and battleships, China attaches great importance to the operation of submarines.

In particular, the submarine forces performed extremely well in the broken engagements carried out after the Sakhalin conflict, so the development of submarines never stopped for more than two decades.

In the past 20 years or so, the Chinese government has once again developed a variety of main submarines, and the main submarine equipped by the government is a large fleet submarine called 'Wei Yueyan'.

Wei Yueyan, that is, Wei Su, one of the twenty-eight Naksha, the fifth of the seven Nakshaku in the north. The place where the tail of the turtle and snake is located, so it is named "dangerous".

The dangerous are also high, high and dangerous, so the danger is fierce.

Different from the Aqua Ape or Misui Leopard class in the past, the Wei Yueyan class is the first submarine in the world that is completely designed for underwater warfare, rather than diving for attacking and evading attacks from surface ships, and can be called the prototype of modern submarines.

During the Second World War, the Wehrmacht's submarines began to look a little useless, so the Navy decided to design new high-speed submarines. The Weiyueyan-class submarine has improved the battery capacity of the old class, which is about three times that of the previous class, greatly increasing its underwater range and reducing the time it takes to surface. With less than 5 hours of snorkel charging, the Weiyueyan class has the ability to dive underwater at a speed of 5 knots for 2 to 3 days without recharging. The Dangerous Moon Swallow class is also quieter than previous models, making it less detectable when diving. At the same time, the hull of the Weiyueyan-class is also designed to be simple and streamlined, which increases the submarine speed and reduces the submarine resistance, making it more difficult to be tracked and destroyed.

The space and equipment in the Weiyueyan-class are also larger and better than before, and there is still room for the large hull with multiple sets of batteries, as well as the refrigeration equipment on the ship and the shower room that is not available on other ships. In addition, the Dangerous Moon Swallow class also has a special hydraulic torpedo system, which allows the torpedo assembly time to be shortened (18 torpedoes can be fired in 20 minutes) and the torpedo rate of fire is also faster. At the same time, the Weiyue Swallow class also has a more advanced sonar system, which can be aimed at and launch torpedoes without the need to use a periscope to aim, increasing its concealment. There are 40 torpedoes, or 23 torpedoes and 12 mines, and there are 6 torpedo tubes in the bow. Only one 20-mm anti-aircraft gun remained in the deck guns and multiple anti-aircraft guns of the previous submarine configuration.

The production of the Wei Yueyan class adopts a different method than in the past, the Navy has modularized the production of the entire submarine, divided the entire submarine into eight parts, manufactured from parts from 32 shipyards, and then assembled in 11 shipyards, and the production speed has been greatly increased, and one submarine can be launched every six months.

At the same time, compared with the Ahuizotl class, the displacement of the Danger Moon Swallow class has also increased a lot.

The standard displacement of the Ahuizotl class is 1,961 tons, and the underwater displacement is 2,523 tons.

The displacement of the Weiyueyan class has increased to 2,500 tons and 3,000 tons, which is quite a large submarine even in later generations.

It can be said that the Wei Yueyan class is definitely the strongest submarine of this era. (To be continued......)