Battle of the Third Reich: Torpedo (top)

The detection equipment does not exist. Of course, this is a nonsense when I open my eyes. Just a few dozen minutes ago, the u106 was "snacked" on the hull with an active sonar. The earliest active sonar, the underwater echolocation device, was invented by British meteorologist Lewis Richardson in 1912. At that time, the famous [Titanic] shipwreck occurred, so the expert decided to invent a device that used To detect icebergs hidden in the water.

In terms of usage, Richardson’s invention should be said to have completely failed. The technical conditions at the time restricted the detection range of echolocation, and the doctor’s iceberg detector had no practicality. In 1913, the German physicist Alexander Bem, also using the principle of echolocation, invented the echo sounder to measure the depth of the seabed below the ship, and obtained related patents. This is the first time the echolocation system has entered The vision of the military.

At the end of World War I, because of the deep sense of the threat of German submarines, the United Kingdom, the United States and other countries have launched projects on anti-submarine detection equipment. All countries have invested considerable efforts in seawater acoustic research. Hydrophone technology has developed rapidly, and After the war became the standard configuration of surface anti-submarine ships.

As for the active echo detection device, only the Royal Navy made breakthrough progress at the time, and it was regarded as the highest level of secret by the British Navy. Information related to these technologies is not allowed to be published even in professional scientific journals. .

The British Navy had already experimented with active sonar equipment on an F-class destroyer in the early 1920s. However, the active sonar performance at the time was still primitive. It could only detect the depth of the submarine, but could not accurately measure the submarine’s depth. Bearing, course and speed, so it can only be used as an auxiliary aiming device for submarine attacks. At that time, in the entire world, only the French Navy developed a similar active sonar system. It is said that the performance is not much behind that of the Royal Navy.

The active sonar technology is regarded as the top secret by the British. Except for the navy high-level who knows, all relevant operators have been issued a strict password. The secrecy of this technology can be said to be very successful, so that the British allies We don't even know this.

The development of sonar technology in the United States is also very early, but due to a series of reasons, such as the global economic crisis, military expenditure reduction, conservatives coming to power, the navy’s indifference, etc., the American active sonar development process is not only extremely slow, Technically, the sonar performance of the early US Navy was so poor that the hydrophone was the only effective anti-submarine detection equipment equipped by the US Navy for a long time.

Historically, it was not until the British Royal Navy transferred their sonar technology to the United States free of charge at the beginning of World War II. Based on the British Navy’s technology, the United States finally developed a reliable active sonar before the outbreak of the Pacific War. System, and began to equip troops in the middle and late stages of the war. As a result, the loss of the Japanese naval submarine force began to rise rapidly after four or three years.

And now, the name of this active echo detection system is not called sonar () but "asdicanti-". The name of sonar is that after the United States entered the war in World War II, the British wanted to cater to The name was changed by the United States. At that time, in order to win this war, the British Empire no longer talked about morality.

Now that the history of the world has changed, and the European war has ended, so there is no such thing as a free transfer of sonar technology. At this time, the active sonar of the Royal Navy is still called submarine detector, and the existence of sonar is still the highest in the country. confidential.

Captain Fujiki didn't know where he heard the rumors of the existence of this equipment, and perhaps he was a little confused in his heart, so he wanted to explore the Germans. If the Germans insist that there is such a thing, then go on. It was the turn of the Navy’s intelligence department to get a headache.

The Japanese navy didn’t know that active sonar equipment existed at this time. To be honest, even if they got this information, they might use it to confuse themselves, as Robin said. rumor. The Type 93 underwater listening machine currently equipped in Japan is still a replica of the underwater listening machine made in Germany. With the current level of underwater detection technology currently mastered in Japan, even the principle of active sonar is not known at this time. Not to mention any relevant research.

After getting Robin's affirmative answer, Fujiki looked a little depressed. Obviously, the German's answer was not what the captain wanted to hear. It is easy to understand, if this kind of detection equipment really exists, then Captain Fujiki, who has probed the intelligence, will have done a great job. Even if it is not enough for promotion, he can at least get a higher-level certificate (Certificate). The future will also be bright. But now it has been confirmed that this equipment is only a rumor, so Fujiki's credit must be reduced by at least half. The feeling is that you can't even think about it. At most, you can get a comment from the commander. The officer is flexible in mind and is a diplomatic talent.

Robin patted Fujiki on the shoulder for comfort, then turned his head to Guidao and said, "Colonel, let's go to the next cabin."

"Oh, no problem, Captain, please go this way." Kishima hurried forward, squeezing Fujiki with a shoulder.

"The bow torpedo compartment is in front." Guidao introduced it diligently while leading the way.

The height of the top of the cabin of the Haida III submarine has reached more than three meters, so the soldiers’ cabins are all three-story sleepers. In contrast, the internal space of the German submarine is much narrower, even if it is a large ocean-going submarine such as the u106 , And all are double berths. At this time, the Japanese sailors on the Yi 60, except for the personnel on duty, all got on the deck through the rear entrance and exit, leaving a space in the cabin for friends from all nations to visit.

The width of the aisle in the cabin is about one and a half meters, and there is a storage space under the floor for stacking supplies such as rice biscuits. This is also a restaurant for the soldiers on the boat. They set up in the aisle during meals. Fold the table, put away the upper and middle hammocks, and then the soldiers sat face to face on the bottom bunks on both sides, enjoying their own three dishes and one soup.

The Japanese army is accustomed to adopting a food-sharing system. Everyone has the same meal when eating. This is much more hygienic than the big pot choi method used by the national army at that time. Each sailing unit is equipped with a communal kettle, which is the kind of large aluminum kettle that is usually used to boil water. It contains barley tea. This is an indispensable drink for the Japanese Navy when eating. It is second only to the must-have kelp miso soup in a delicious meal. .

In the supplies that Guidao exchanged, there were two bottles of special miso produced by the Wugang Navy Food Processing Factory, and one Otaru special refined concentrated soy sauce for the Navy (the small wooden barrel for the food is called in Japanese bottle).

Miso was introduced to Japan from the Tang Dynasty in China, but at this time it is a seasoning unique to Japan~IndoMTL.com~ is made by fermenting steamed soybeans with salt and koji. After steaming with water and other ingredients, it becomes a rich flavored miso soup. A bottle of fifteen kilograms of miso like this, after being boiled into miso soup, is enough to provide a platoon of infantry for a week.

Concentrated soy sauce is a unique invention in Japan. They blended soy sauce with kelp and dried bonito to produce a delicious and rich high-salt sauce. When cooking large pot dishes, only a few dozen grams of this This kind of sauce seasoning, compared with the original ordinary soy sauce, this concentrated sauce greatly reduces the burden on the logistics unit.

Actually, the Japanese navy submarine unit is also equipped with more concentrated miso powder and soy sauce powder, which are the products of the above two seasonings after dehydration. You only need to add water to melt before use, and you can cook normally. In long-distance voyages, this seasoning powder can save more space in the cabin, but because the voyage is not long and there are many valuable naval students in the crew, regular supplies are chosen.

Taped a pat stacked next to the bulkhead, and made a white wooden miso bottle with hemp rope hooped outside. Robin followed Guidao into the bow torpedo compartment of No. 60.

The first thing that catches the eye is the white rice bag neatly placed on the floor of the torpedo cabin, and the second is a huge torpedo placed on the spare mine rack. The torpedo shell of metal primary color is illuminated by the fluorescent lamp on the ceiling. The body shone with a compelling cold light.

"Type 95 oxygen torpedo." Captain Robin thought, and then the Captain of the German Navy folded his arms and looked at the "extremely secret" of the Imperial Japanese Navy in front of him with interest.

ps: I'm going to the hospital tomorrow. The specific update depends on the situation. I will send a notice tomorrow.

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