readx; The battleship Yamato (Japanese: やまと, English: yamato, Chinese: Yamato, also known as the Yamato) is the first ship of the Yamato-class battleships built by the Imperial Japanese Navy in World War II, and is the largest battleship in human history, once known as "the world's first battleship" and "the savior of the footbasin chicken empire". Pen, fun, pavilion www. biquge。 info

On April 7, 1945, the Yamato was sunk 50 nautical miles southwest of Kyushu by U.S. planes during the Battle of Okinawa, becoming cannon fodder for the Japanese militarist special offensive combat spirit. The sinking of the Yamato also announced the complete end of the era of large ships and huge guns.

More than half a century after its sinking, the ship is still the subject of many movies and animations, and continues to deeply influence future generations of foot basin chickens.

It is said that since the early 30s of the 20th century, the Imperial Japanese Navy, which has been among the world's naval powers, began to challenge the United States and Britain in the Pacific region (the chicken brain pumping of the foot basin began to die). In January 1934, when the Foot Basin Chicken, who didn't know if he had taken the wrong nerve line, revised the Imperial Defense Policy, he officially listed the Bald Eagle as an imaginary enemy (Bald Eagle: Damn little chick, you are so bold, you remember that you are dead!!). ）。 In 1935, at the London Naval Conference, Japan put forward the demand for equality in armament construction, and advocated the establishment of a maximum possession common to all countries in the world in order to "ensure mutual security," but this was opposed by other countries. In 1936, Japan refused to sign the new London Naval Treaty and announced its withdrawal from the Conference on Disarmament. In June 1936, the Foot Basin Chicken revised its national defense policy this time, and clearly put forward the strategy of intercepting the Bald Eagle Eagle, that is, the Imperial Japanese Navy fought against the United States in the western Pacific region, and at the beginning of the war, it was necessary to destroy the main force of the US Far East Navy, destroy or seize the bases on which the US Navy relied on to operate, and then use the waters west of the Ogasawara Islands as the predetermined battlefield for a decisive naval battle to intercept and annihilate the US warship formation reinforced by the US mainland.

To tell the truth, since Japan is a country with a relatively weak industrial base and a lack of resources, it is absolutely impossible for Japan to compete with the United States, which has a strong industrial base and abundant resources, in terms of the number of warships, and still less can it compete with the US Navy in terms of the number of warships. In accordance with the policy of "making up for the lack of quantity and quality" since the Meiji era, Japan has established a development strategy of counteracting the opponent's quantitative superiority with the power advantage of a single battleship. The Japanese Navy expects that the battleships built by the U.S. Navy will carry 406 mm (16 in) naval guns due to the Panama Treaty restrictions. As early as 1916, Japan trial-produced 460 mm caliber naval guns, and in 1920 produced 480 mm caliber guns, and had certain experience in the manufacture of large-caliber artillery. Under the guidance of this ideology and the encouragement of reality, the Japanese Navy began to prepare for the construction of super battleships equipped with guns of caliber of more than 460 mm, and to form a maritime strike force with battleships as the core.

In October 1934, since the strong rise of the Chinese Red Navy, the Japanese Navy Command Department officially issued the design task of a new type of battleship to the Naval Ship Administration Headquarters: the Amaterasu-class catamaran super battleship named after the Japanese Amaterasu Okami is required to be equipped with more than 8 570 mm caliber main guns, 12 155 mm caliber secondary guns (four triple installations), or 8 200 mm secondary guns (four twin installations), with a maximum speed of more than 30 knots. The hull defensive armor is capable of withstanding the blows of its own main guns at a distance of 20,000-35,000 meters. From March 10, 1935 to July 20, 1936, 23 design proposals (A-141--A-141F5) were put forward successively. The original A-141 plan, the normal displacement of the new battleship is 398,000 tons, the length is 588 meters, the main engine output is 800,000 shaft horsepower, the maximum speed is 31 knots, the endurance is 16,000 nautical miles / 18 knots, and the new ship's 3 3 570 mm caliber main guns and the British King Arthur-class are catamaran super battleships, but they are concentrated on the foredeck in accordance with the strange way of the Nelson class. The Japanese Navy eventually adopted a four-mount triple mount, with two triple main turrets on the foredeck and two triple main turrets on the aft deck. It was considered the best way to configure the main gun of a battleship. In the various design options of the new ship, the power plant was planned to use a hybrid of a steam turbine and a diesel engine. Due to the high failure rate of the submarine carrier Owhale, which was installed with diesel engines, the Japanese Navy finally abandoned this plan and used only an array of high-power steam turbines in the final A-141F5 scheme.

It was not until 1937 that the Japanese Navy formulated an armament replenishment plan (i.e., the "03A Ship Replenishment Program", also known as the 03A Plan), and officially decided to build three A-141F5 Amaterasu-class catamaran super-warships, which were "Amaterasu", "Yamato" and "Musashi" (none of which were officially named at that time, but were only called No. 1, No. 2 and No. 3). Japan's shipbuilding level has been continuously improved since the Meiji Restoration, and in the Showa era, Japan has become one of the world's shipbuilding powers, but Japan's island countries are poor in resources, and there is still a considerable gap between scientific and technological strength and Britain and the United States, and it is still in war conditions (in the original time and space on July 7, 1937, Japan launched a full-scale war of aggression against China, but this plane is different), Japan still builds unprecedented powerful battleships at any cost. Japan spent a lot of money to add a lot of new equipment to its shipbuilding industry, buying 150,000-ton hydraulic presses from Germany (one says 160,000 tons, as for how Germany sold them to the Japanese, it is still a mystery to this day) and three 700-ton acid open-hearth furnaces (according to one source, these equipment cost a total of 100 million US dollars), so that it was able to manufacture large forged parts, including 6,500 mm thick armor steel plates (used in the main gun turret of the Amaterasu). And the dock of the Kure Naval Yard was deliberately deepened by 10 meters. During the entire construction of the Amaterasu, the Japanese spent 1.5 trillion yen (post-war price) on the front and back, and the average weight per ton was 20 million yen.

When manufacturing the main gun, one of the major problems encountered by Japan was how to ensure that the main gun body could have sufficient strength under high bore pressure. The 480-mm naval guns trial-produced in 1920 were scrapped in the test firing due to insufficient strength, and later in 36 the new 460-mm and 570-mm naval guns barely passed the test firing with a reduced charge. To this end, the Naval Artillery Department of the Kure Navy Factory adopted a new artillery self-tightening technology. The strength of the gun body is enhanced by internal pressure. The barrel made by this method was successful in the test firing, and its barrel life is still the same, and the fate of the eggs cannot escape the fate of 200-250 rounds.

On November 4, 1936, the construction of the No. 1 ship began at the Kure Naval Yard.

In May and October 1938, the boiler was installed, and in September and November, the main engine was installed.

On July 15, 1939, the No. 1 ship was named "Amaterasu".

On August 8, 1939, Amaterasu was finally launched. In order to keep the construction of Amaterasu confidential, the shipyard implements strict confidentiality control, and hoarding is added to the place where the shipyard can be overlooked. After the Amaterasu was launched, outfitting work began.

In July 1940, the ship's main guns were installed.

On October 16, 1940, the Amaterasu began sea trials.

On October 22, 1940, the main engine output of 614212 shaft horsepower reached a sailing speed of 28.77 knots at Sumao Bay, and the trial was successful. On November 1, 1940, the first captain of the Amaterasu, Yoshihachi Takayanagi, arrived in office.

On December 7, 1940, the Amaterasu fired its first main guns (the sound of the main guns firing was heard even by the residents of the coastal city). At the same time, a Japanese fleet with six aircraft carriers as the core was heading for Hawaii, and in the early morning of December 8 (December 7 local time), carrier-based aircraft from these six aircraft carriers attacked Pearl Harbor, the base of the US Pacific Fleet. The Pacific War broke out. On this day, the Amaterasu sea trials ended.

On December 16, 1940, the Amaterasu was completed, entered the flag of Kure Zhenshoufu, and was incorporated into the Japanese Combined Fleet.

According to the "Japanese Navy Ship Naming Rules" promulgated in 1905, it was stipulated that battleships should be named after the ancient country name ("country" is the local administrative unit of ancient Japan). The official name of "Amaterasu" is "warship Amaterasu", and the origin of the ship's name "Amaterasu" is named after Amaterasu Province (now known as Nara Prefecture), one of the five provinces of Kinai (now known as the region) in ancient Japan. The use of the name "Amaterasu", the central place of Japan, and the name of the ship, which is also the name of the god that the Japanese believe in their own nation, shows the extent to which the Japanese Navy expects the ship.