The Rise of the Empire

From the number of monthly losses of German submarines in World War II, we can clearly see the increasing trend of the Allied anti-potential amount. This amount of losses was actually very low during the three years from 1939 to 1941. The number of monthly losses of submarines in 1939 was 2.2. Ships, the number of monthly losses in 40 years is 1.8 ships, and 2.9 ships in 41 years. In the glorious moment of 41 years, the average monthly possession of submarines in Germany was about 158, and the loss ratio of submarines was only 1.8%! This is a very low number! But then, the good days of German submarines are finally over!

In 1942, the average monthly loss of German submarines was 7.1. At this time, the monthly possession of German submarines was about 333. In 43 years, when the monthly possession of German submarines increased to 425, the loss increased to 19.8. In the following two years, the number of German submarines has almost maintained this number, and the loss has also been almost 20. Of course, the monthly loss in 45 years has increased to 29!

Don’t forget, in 44 and 45 years, the combat range of German submarines has shrunk a lot. In 42 years, hundreds of German submarines fought against the Allied forces in the vast Atlantic Ocean. In 1943 In 2015, there was the largest single-game confrontation between the **** fleet and the U-boat!

During the period from March 16 to 19, 1943. The hx-129 and sc-122 two huge transport fleets are combined into one. These two fleets sailing in the Atlantic Ocean are composed of more than 110 transport ships of various types. The size of this fleet can be very impressive. The PQ-17 transport fleet pales in comparison.

In four days, this huge fleet was besieged by 41 U-boats from three waves of wolves, and eventually sank 22 merchant ships with a gross tonnage of 147,000 tons. The German submarine lost only one! This is the biggest victory the wolves have achieved entirely on their own! But it is a pity that this is the last glory before destruction! Because in May 1943, after a black May, Dunnitz decided to temporarily withdraw the submarine force from the Atlantic Ocean.

In September 1943, when Dunnitz’s wolves tried to return to the Atlantic Ocean with new equipment, they had little success. The loss of 27 submarines in October and the loss of 18 submarines in November made Dunnitz several months old. Efforts were made to revert to nothingness, so at the end of the year, the retreat order was issued again... At this point, the era of U-boat attacking the Atlantic Ocean is over.

And if you compare the performance of German submarines at the end of the war in the first battle, you can find that although the number of German submarines in the later period of the first battle was relatively small, they still struggled to fight each other deep in the ocean, for example, April 14, 1918 The U151 submarine, under the leadership of the captain, Major Yekendorf, was in front of the U.S. Atlantic coast to break the cross-traffic mission. During the 94-day voyage, the submarine sailed 10,915 nautical miles and sank 23 merchant ships with a gross tonnage of 61,000 tons.

In addition to the u151, there are submarines such as u140, u152, and u156. These submarines sank more than 20,000 to 30,000 tons of merchant ships. You know, there were only a few submarines capable of ocean-going voyages in Germany at that time. The ocean-going submarines with a range of over 12,000 nautical miles were only level 3 (respectively u139, u142, and u151). There are no more than a dozen ships together. The fact that so many submarines can reach the west coast of the United States and achieve fair results can only show one problem, that is, even in the later stages of the war, German submarines still maintained a high vitality, and the sea and air blockade can only make the submarines feel pressure and loss The opportunity to attack the target, but still unable to effectively destroy these submarines!

Therefore, in general, the large-scale submarine warfare of this era is quite deadly even for a big country such as the United Kingdom, especially in this plane, when the United States has been in the same situation as the British, the United States was lost in the first war. How can the UK obtain enough supplies? How can there be enough **** warships? Without the American flat destroyers like dumplings, how can the vast Atlantic be defended?

However, it is still early, the German Navy's understanding of submarines is still very backward, and in this case, the prince believes that as the future head of the second largest family in Germany, it is necessary to remind the German Navy. The German royal family can own a royal sightseeing yacht, so why not have an underwater sightseeing yacht that can dive? Construction of a ship marked with a yacht mark was started at Brom-Fors Shipyard. This submarine called the Swordfish will be the first submarine with practical significance in Germany.

Since it is a traverser, it is natural to let German submarines take some detours. In history, the first self-use submarine U1 in Germany was launched in 1906. This submarine with a surface displacement of only 238 tons and an underwater displacement of only 283 tons is a submarine. Paraffin oil-powered submarines use gasoline engines. The fuel capacity is only 20 tons, and the surface range can only travel 1,500 nautical miles at 10 knots. In terms of weapons, there is only 1 450mm fish and 3 torpedoes... In terms of performance, apart from being a training and experimental boat, it has no other function, and the submarines of the same period have many problems.

For example, gasoline engine cylinders are not well sealed, for example, there may be water leakage problems. Early working on a submarine is no different from taking risks. The space inside the submarine is sealed, and some gasoline engines and diesel engines at that time were because of rubber sealing. The lack of a tight circle may result in a large amount of exhaust gas in the cabin, which may cause the crew to suffocate. Submarines in better conditions have installed a gas leak detection device to check exhaust gas. And if not, then the crew can only figure out a solution.

For example, the crew of the Royal Navy raised their own guinea pigs with their salary~www.NovelMTL.com~ and then threw the guinea pigs away in the cabin. When the guinea pig was found to be abnormal, it indicated that the air in the cabin was 80%. has a problem....... Well, submarine soldiers have been a chore until now, let alone back then.

On this plane, the submarine built by Brom-Forth Shipyard has a surface displacement of 500 tons, an underwater displacement of 650 tons, a hull of 60 meters in length, 6 meters in width, and 3.6 meters in height. The size of the submarine is similar to the U9 submarine of later generations. The hull of the submarine uses a ship-shaped hull. When sailing on the water, it is powered by 4 diesel engines. The total attack rate is 2000 horsepower and the maximum surface speed is more than 17 knots. The electric motor provides power with a maximum output of 1200 horsepower and a maximum underwater speed of about 9 knots. The fuel capacity is 72 tons, and when sailing at 8 knots, it has a water endurance of 7,000 nautical miles. It can be used as an open sea submarine.

In terms of weapons, there are four 450mm torpedo tubes. There are two torpedoes in the front and two in the back. A total of 8 torpedoes are equipped, and a 105mm deck gun is also planned. In terms of firepower, this class of submarine is very close to the historical U51 submarine. But it is slightly smaller in appearance.

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