The final evaluation and design draft developed by the submarine designers and rocket experts was to redesign a new submarine with a displacement of at least 3,000 tons, so that it could be equipped with two large rocket launchers in quadruple batteries and sixteen long-range rockets on its deck, so that it could deliver as much firepower as two heavy long-range bombers.

The construction of submarines of this displacement was not a difficult task for the German Reich, which was built by the Imperial Navy during the First World War. The problem was that such submarines with a displacement of more than 3,000 tons seemed to be too conspicuous when sailing in the Bohai Sea, and in the end the submarine command decided to build such large submarines at the Qingdao shipyard on the coast of the East China Sea.

Dengzhou Shipyard, a veteran shipbuilding company whose headquarters had already moved to Qingdao, was basically in a state of closure during the economic crisis that broke out in 301 of the Republic of China, but it was later revived thanks to the injection of capital from the Jiangxia United Shipyard. Today, most of the shipyard's shares are in the hands of Jiangxia United Shipbuilding Group, which can be seen as a subsidiary of Jiangxia Shipbuilding Group, one of the largest joint shipbuilding enterprises in the world.

The Qingdao shipyard in Jiaozhou Bay had built two light cruisers of the "Zhoucheng" class with a displacement of 7,000 tons and several destroyers before the war, and after the start of the war, it mainly built frigates and submarines of the "Xiaocheng" class. In terms of shipbuilding capacity, although it is not as good as the current first-class large shipbuilding enterprises in the empire, this shipyard that has built the earliest armored ships and several dreadnoughts in the Tang Empire is still good.

Lieutenant General Qin Jiasheng, commander of the submarine force of the Northern Fleet, sent Lieutenant Colonel Luo Qiang, who was not tall and somewhat bald, with two mustaches, to accompany Ling Wencha from Dengzhou to Jiaozhou, accompanied by Colonel Zhou Zhongshu of the Ship Design Bureau. Lieutenant Colonel Luo Qiang, wearing a well-tailored dark blue navy polyester uniform, sat in the car and smoked pagoda cigarettes from Yunnan.

He is one of the equipment directors of the submarine force, and he is well versed in the production of equipment of the submarine force, and his wrinkled face will show some gloomy expression from time to time. After a period of contact, Ling Wencha realized that the lieutenant colonel was very worried about the future of the submarine force.

As sonar, radar, and anti-submarine patrol aircraft are increasingly deployed in the navy, the activities and survival of submarines at sea are increasingly at risk, and Lieutenant Colonel Luo Qiang has two sons serving on submarines.

After learning of this situation, Ling Wencha casually comforted him and said: "As our surface fleet becomes stronger and stronger, the main task of the submarine force in the future will be reconnaissance and surveillance, and there is generally no need to risk launching an attack on the escort fleet." ”

Luo Qiang twitched his eyes in his mouth, and was silent, making the carriage steam, and just when Ling Wencha thought that he was not ready to speak, he suddenly spoke: "I told General Qin that submarines alone will never be able to win a war at sea, and this thing will always be a special auxiliary ship. The vice admiral was furious, and I thought he would kick me out of the submarine force later, but then nothing happened. ”

Ling Wencha smiled: "Maybe he thinks you're right." ”

"No, that guy is a rather stubborn person, and he has always been dissatisfied with the Supreme Command taking away the operational command of the submarine forces. If he were to command all the submarines of the entire Atlantic Fleet, I can guarantee that he would order those submarines to risk an attack and implement his 'wolf pack tactics'. ”

"Then the submarine forces will suffer heavy losses, and the Supreme High Command will never agree to such an approach." Ling Wencha said that the 'wolf pack tactic' proposed by General Qin Jiasheng has been carefully studied by the Navy General Staff and the Supreme Base Camp, and finally came to the conclusion that this method is very useful when the opponent has not established an effective escort system, but under the opponent's strict escort system, this tactic has great risks, and some gains outweigh the losses.

Therefore, the command of the submarine forces of the Imperial Navy was slowly transferred to the hands of the commander of the surface fleet.

Now submarine forces mainly carry out reconnaissance missions, and since most ocean-going submarines are equipped with rocket launchers, they sometimes also carry out some raids on enemy ports. However, even the latest 210-mm rocket launchers have a maximum range of only a little more than 8 km, and submarines are very dangerous when performing such an attack mission.

If it's a long-range rocket, there are no such concerns.

Ling Wencha suddenly thought that if it was equipped on a submarine, it seemed that this long-range rocket did not need to have a maximum range of more than 300 kilometers. Because the long-range rocket was originally developed to bomb Britain across the English Channel, but now that the mission has changed, its design should be adjusted accordingly.

Thinking of this, Ling Wencha turned his face to Colonel Zhou Zhongshu: "How long does it take for a 3,000-ton large ocean-going submarine to be built?" ”

Wearing a pair of silver-rimmed glasses and looking like a scholar, the mid-week lieutenant spoke slowly: "The latest Type 21 ocean-going submarine is about 150 days old, but because our new submarine needs to be re-sampled and tested, it is estimated that it will take almost a year to step up construction." ”

This time was a bit too long, although it was not very polite, but Ling Wencha still asked a little eagerly: "Is there any other submarine with a larger displacement currently being built in the submarine armament department?" ”

"Uh...... In order to meet the operational requirements of the Navy in the South Atlantic, the submarine force has started to build a number of large supply submarines, which have a displacement of 2,800 tons, but this type of submarine is only equipped with four self-defense torpedoes, and in order to load more cargo, the maximum width of the boat has reached nearly 12 meters, so its maximum surface speed is only 16.2 knots, which is not very suitable for combat performance requirements. Zhou Zhongshu turned his head sideways and looked carefully at the rear admiral beside him.

"Well, the Supreme Command is not omnipotent, and it is impossible to plan everything in advance! There are always some surprises, and if it works, I'd like to see if I can pull one out first! Ling Wencha replied a little helplessly, "This thing can be used to transform it and equip it with a rocket launcher." ”

Zhou Zhongshu also quickly calculated in his heart, and also nodded and said: "If the task is urgent, it can barely meet the technical requirements." It's just that all the torpedo tubes need to be removed. In that case, it seems that the submarine does not even have weapons for self-defense. ”

"This thing doesn't need any self-defense weapons, and such a thing as a sea attack is a one-shot deal." Ling Wencha said, "When we arrived at the base, we immediately reported to the top. ”

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