At 4 pm on May 19, 1029, Binghe arrived at the coastline again. While returning to the coastline, Binghe, who was sitting on the train, frequently communicated with the port of the Crab Port using radio waves.

The submarine formation that was fully on standby in the Hai Crab Port quickly began to operate after receiving the order from Bing Ke. The submarines were almost fully dispatched.

During this battle, the submarine took the initiative to attack on the 19th, because of technical limitations.

Two years ago, Binghe's submarine plan in West targeted a technical parameter of 400 tons. However, in fact, due to West's industrial foundation being too poor and the workers' proficiency was not high. In early 1029, the workers at Sea Crab Port only fully mastered the manufacturing of two hundred tons of submarines.

There are only three 420-ton submarines in the entire West Port, and these three large-tonnage submarines were passed after repeated inspections of Lan Crane. If they are separated from the technical guidance of the mechanical controller, the workers at the Sea Crab Port will not be able to master the manufacturing of larger-tonnage submarines in the short term, so they can only mass-produce small submarines with more than 200 tons.

What is the difference between combat power of more than 200 tons of combat submarines and more than 1,000 tons of combat submarines? In fact, as long as you can reach the combat position and lurk in enemy ships, it poses a huge threat to surface ships.

The combat submarines with a combat range of more than 200 tons are more difficult to detect due to their small tonnage and low noise. During World War II, many small submarines achieved good results.

However, the range of more than 200 tons of submarines is too short, making it impossible to deploy in the ocean and can only be used for offshore defense. The self-sustaining power of more than 200 tons of combat submarines at Sea Crab Port is ten days, and the full battle is fifteen days.

In Binghe's plan, the commander assigned the submarine only five days to the combat mission, and the remaining time must be left for the submarine captain, so that the captain can take the entire boat home safely.

Due to the limitations of the small submarine itself and the boldness of nuclear strategy, the Oka people's fleet attached great importance to the movement information of the battle.

At critical times, in critical seas, a sufficient number of submarines must be deployed to give the enemy a fatal ambush.

【Binghe arrived at the Shuangqiu coastline at 7 pm on the 21st.】

In the temporary base on the hill, Chen Jia was fanning the blast for Binghu.

Since we need to observe the smoke columns of the Oka Steam Fleet on the sea surface, Binghe spreads the field to fifteen kilometers every fifteen minutes. The increase in body temperature forced Binghe to take off his mechanical suit and put on a thin summer suit, but the temperature of his whole body was still a little high. Under the bright red skin, the magic veins flashed, and Chen Jia kept staring at the phenomenon on Binghe.

At this time, Binghe was looking at the combat map with great concentration, picked up his pen and marked the fleet's position on the map again, and then operated the radio waves to send signals in the sky using the domain.

These marks show the departure of the Oka Steam Fleet on the map, and this track that still extends on the map will eventually enter a red circle on the map.

The location of the red circle is Hukou Strait.

The Hukou Strait is the connection between the Mediterranean Sea and the northwestern ocean of the world. When the Oka people rose nine hundred years ago and controlled this golden waterway, they built sea fortresses on both sides. There were a total of fifteen super cannons on the sea fortress, and their powerful range could just block the narrowest 50-kilometer part of the Hukou Strait. Since then, no fleet has been able to seize control of the Oka people in this important strategic position.

However, it also seems that it is precisely because the Hukou Strait is an absolutely safe area in the minds of the Oka people that the large fleet of the Oka Empire did not have the vigilance to enter the war zone when passing here.

At 11 p.m. on the 21st, eight battleships with tonnage of more than 10,000 tons, and 32 small battleships of various types were formed to reach the east side of the Hukou Strait. The boiler inside the battleship was fully powered and the output power drove the ship's axle, and the fleet of tens of thousands of tons split the waves in the sea. At the tail of the battleship, white water splashes separated on the sea surface, dragging out dozens of kilometers of long eight-character waves. The battleship chimneys sprayed smoke columns at the same time. The industrial giants went south all the way, highlighting the power of the empire.

After seeing the traces of the large fleet 400 kilometers away, Binghe immediately sent the information to the front line through the high-altitude airship, and a submarine on the front line that released a communication buoy on the sea received the information.

After obtaining important information about the number of Oka people fleets, fleet arrangement order, and the formation of the strait, the diesel engine turned off, the ventilation duct was put on, the motor was turned on, and the battle was underwater.

The underwater fleet began to coordinate with the underwater sonic code and quickly formed several strike formations.

[Sailor has new magic to distinguish sounds in the sea, but this skill of the sailor is a skill in the Sailing Age.]

However, the times are progressing, and there is no ship engine in the sailing era. In the steam era, sailors cannot hear submarines when using new magic when they stand on steam power. Because the noise of the propeller in the ship they are in is already extremely loud, which is equivalent to sitting on a startup tractor and unable to hear people talking a few meters away.

Nowadays, most civilian sea boats and fishing boats are still sail-powered. The sailor profession generally does not eliminate this skill, but it is not very useful on steel and steam-powered ships on the battlefield.

There are only two technologies to detect underwater submarines:

First, destroyers and frigates use a towed sonar in a line to keep the towed sonar away from its own noise source in order to detect underwater.

Second, a large number of anti-submarine aircraft are used to send a large range of sonar buoys. Once the submarine floats, the buoy will immediately send a signal and the anti-submarine aircraft will fly over immediately.

Of course, there were no Oka people in both anti-submarine systems, so they straightened up in the sea wolf mode carefully prepared by Binghe for him.

A year ago, when the Oka people learned that there were threats underwater and saw the shortcomings of the submarines reported, they believed that their scope of application was very small, and West's own power only used submarines as a means of intimidation. These naval bureaucrats laughed and left aside, without thinking about making plans to deal with special circumstances that may occur in some cases.

The inaction of past bureaucrats has caused serious consequences today.

At 11:34 on May 21, Grand Duke Lantao stood on the bridge of his battleship and opened his territory to look around. He was particularly restless tonight and couldn't sleep, so he walked to the bridge to do the work of the fleet leader.

Looking at the undulating sea surface at night and listening to the sound of the waves hitting the bow of the ship, Grand Duke Lantao, who was alone, fell into thinking.

"The spherical space within a radius of one thousand meters and a twenty-kilometer observation range is the standard fortress. In the past century, with the emergence of long-range weapons, the role of the fortress has gradually become less effective than that of generals and authority. The fortresses of the Oka Empire collectively chose to combine with battleships, using the naval guns, armor and the unique maneuver of the ships of the main ships to defend the status of the fortress profession. Even so, in the eyes of many nobles on the mainland, the decline of the fortress has become a trend.

But now, the maverick children mocked us fortresses with their amazing actions, and we are short-sighted in industrial technology."

"Electronic Controlled Airship"

"Remote Controlled Warhead"

"Electrical remote-controlled drone"

Grand Duke Lantao silently recited the new things that appeared in this war. His keen political thinking associated many aspects.

"The military technology of the mainland will undergo tremendous changes in the next twenty years. If the combat power of the fortress increases significantly, then the matching political rights will also increase significantly. At that time, the fortresses will not need to rely on fleets or fortresses, but they can become the military core and protect their political status. Then..."

Grand Duke Lantao's eyes lit up. He held the main gun of the battleship and patted the gun barrel. Suddenly, his light saw several direct water splashes on the sea in the distance. The Grand Duke was suddenly shocked. He turned on several visual observation magic and carefully observed the sea.

A few seconds later, the Grand Duke sent a communication alert to the surrounding fleet through the domain: "Attention! All fleets, watch out! Torpedo! North! There are six!"

The way to defend against mines is to reduce the speed of the ship or even stop the ship to search the sea surface, use the water flow created by the water gun to blow away the mines, and then use a machine gun to detonate. Defending against torpedoes is to increase the speed and then use a large steering to avoid it. Therefore, when encountering a torpedo attack, the fleet formation will change rapidly.

When hunting, wolves often like to let one or two wolves launch feint attacks on the side and drive the target to the ambush of their teammates.

The torpedo seen by Grand Duke Lantao was launched by the feint attack teams of four submarines.

Because when the water surface troops encounter an attack, they do not know the underwater situation, and their first reaction is to follow the dogma to turn and avoid.

When the torpedo launched in the direction of the feint attack successfully attracted the attention of the Oka people's fleet cluster, a large number of destroyers rushed to the side of the main warship being attacked, trying to help the main ship block the thunder. The captain (median professional) also directed the crew to observe the distance.

But they didn't know that the real fatal threat to the Oka fleet is on the other side.

The vent duct was packed up in large quantities, and the submarines that were advancing purely on batteries formed a hunting formation, quietly waiting for the Imperial fleet to take the initiative to approach the ambush circle.

Compared with the first wave of torpedoes with obvious tracks, the submarines hunted by the main force used silver-zinc battery-powered line-guided torpedoes. The weight is 1.5 tons and the warhead is 300 kilograms. It is a heavy weapon that must be killed by one blow, and it has no bubbles and has high concealment in the track.

Fifteen minutes later, when the first group of torpedoes were avoided by the fleet.

Grand Duke Lantao paced on the wooden deck of the main battleship (there was still steel shells under the wood, and the wood was for sun protection and heat insulation). After being attacked by torpedoes, Grand Duke Lantao kept observing the surrounding situation in the field.

In history, the entire Hukou Strait has not been attacked for three hundred years. The watchtowers and turrets on both sides can even block the fleet. However, now, Oka has been attacked by torpedoes in this seemingly absolutely safe area. This shocked Grand Duke Lantao.

"He is a fortress, but he is also an amazingly talented mechanical controller." Duke Lantao in the bridge repeatedly muttered this sentence, wanting to wake himself up through this sentence to never ignore anything important.

From time to time, he looked up at the sea. But on the misty sea in the night, the fortress did not notice the periscope hidden among the waves.

Grand Duke Lantao began to focus on the underwater situation within one thousand meters.

Suddenly, the fortress was shocked. In his field, three torpedoes had suddenly penetrated into their own field. These torpedoes began to approach the battleship.

Note: If there is an information display device on each working position on the ship, and the commander Lantao accurately and clearly transmits the information seen in the field to the secondary gun position, then the secondary gun can still be restored by using a machine gun for strafing.

Now the surface of the silver-zinc battery torpedo is extremely small, and only the fortress field can be found, so it is difficult for soldiers at the secondary gun position to see it. Even if the gun is controlled, it cannot be hit in the correct position.

Finally, in the last minute before the impact, the fortress kept yelling in front of the vocal tube, and all the sailors waited for the torpedo to explode.

With a "boom", the entire hull seemed to be arched by a giant beast under the sea. With a loud bang, huge cavitation rose from the water.

The ship's side exploded directly, and huge waves of water burst onto the deck. The hull trembled violently, and all the soldiers on the deck fell due to the vibration.

The Grand Duke took a few steps on the deck and stood firm immediately. However, after standing firm, he came to the freeboard and looked down at the side of his warship. He saw that the absolutely round tremor area of ​​the water surface was slowly spreading, and a huge crack of nearly ten meters was torn open on the side of the ship, and the sea water poured into the middle of the hull with raging sea water.

Just as Grand Duke Lantao looked down at the water flowing in from the boat, an explosion flash appeared at 15 kilometers to the left, which made Grand Duke immediately look up and look in that direction, and there was the location of another battleship.

As the explosion sounded from that place came, Grand Duke Lantao suddenly turned around and pointed to the northwest land direction, and angrily cursed at the air: "The gun flame is on the core, you, you!"

The sailor on the side quickly pulled the emotional grand duke away from the freeboard.

[Steam calendar May 22, 1029 0:00]

West used 43 submarines of varying sizes and tonnages to ambush the Oka people's Northern Ocean reinforcement Mediterranean fleet near the Hukou Strait.

As a result of the first wave of torpedo attacks, four battleships were severely damaged, two of which sank directly, and the other two keels had cracks, and they were also scrapped when they returned to the port.

It also severely damaged a 5,000-ton heavy cruiser and a troop transport ship.

Then during the entire fleet search, the mines released by four submarines were touched, and three destroyers sank to the bottom of the sea.

Including a fortress, one hundred and twenty-seven professionals died in the attack. This was the biggest loss of the Oka Navy in three hundred years.
Chapter completed!