On the question of the Yamato, how did the Yamato sink

The anti-aircraft fire of the Yamato is actually very poor! Although there are a large number of artillery, they all have a low rate of fire, slow aiming and tracking, low accuracy, and poor power. Let's start with the 127-mm high-level dual-purpose gun, the American VT proximity fuse shell, which can be detonated without a direct hit, just flying near the plane.

At that time, the statistical hit rate was 4 times higher than that of the trigger fuse. And the artillery processing technology is good. The Japanese one is coarser and does not have a proximity fuse.

Radar performance is even more backward.

Speaking of small calibers, the United States is equipped with two types: 40 mm and 20 mm, and the 40 mm anti-aircraft gun is an advanced anti-aircraft gun invented by Sweden, and the power of a single shot is not small. The rate of fire is high, and the turret rotation is fast. The 20mm gun is operated by a single man, and the direction is directly controlled by a person, which is very flexible.

The rate of fire is fast. The Japanese only had 25 mm guns, which were inferior to the American 30 mm guns in terms of power, inferior to the 20 mm guns in terms of flexible rate of fire, and did not have efficient radar cooperation.

First of all, the Yamato is a battleship, and the air defense of the battleship is the weakest, and secondly, the battleship is large and bulky, and the plane can easily hit the battleship, while the battleship is difficult to hit the aircraft, and finally the battlefield environment at that time, first of all, the Yamato was deceived by the false intelligence of the US military to support Midway, and as a result, the US and Chinese troops were ambushed, resulting in the Yamato being forced to rush to the battle without logistical support, because the fuel consumed by the Yamato was very huge, and the oil produced by the Yamato at that time could not guarantee that it could reach Midway, so he was forced to stay in place, and then it was bombed by American fighters non-stop, and it was bombed for 1 day, and when the bombing was 1 morning, the Yamato's but it was all exhausted, and finally it could only rely on strong armor to forcibly break through, and was sunk by the planes on the 2 aircraft carriers that rushed to support.

First, the battleship was outdated during World War II, and its bulky hull made it impossible to effectively avoid torpedoes and aerial bombs. Second, there was no radar on the Yamato, and the radar installed later was very backward, resulting in a very poor fire control system.

Whether the anti-aircraft firepower is strong or not does not depend on the quantity. The first is the performance of the artillery, there is no artillery suitable for medium and long-range air defense on the Yamato, unlike the American 127-mm artillery, and it can also fire with a VT fuse, and the hit rate far exceeds that of the Japanese anti-aircraft artillery, and the medium and short-range air defense of the United States has a 40-mm Bofors gun, which is much stronger than the Japanese machine guns. The second is the air defense command.

No matter how much artillery there is, if there is no reasonable command, the hit rate will be extremely low. The United States has an advantage in radar, an absolute superiority in air defense intelligence, and a special fire control radar in the later stage, so its air defense capability is naturally not comparable to Japan's.

The Yamato-class air defense capability was okay in the early stage of construction, but in the middle and late stages of the war, in the face of the saturation attack of the US carrier-carrying aircraft, it had no ability to fight back. The Japanese Type 89 127-mm anti-aircraft gun was not equipped with a radio proximity fuse, and the speed of rotation and rate of fire were not ideal. As for the Type 3 anti-aircraft bomb used by the main gun, although it is spectacular, it relies on the burning effect of the first to kill the aircraft, and it is powerless against the aircraft equipped with a self-styled mailbox, it is just a powerful fireworks.

There were also a large number of 3 25-mm anti-aircraft guns mounted on ships, which were not very powerful, and they were too far behind the 40-mm Bosford guns of the Allies. How could such a spectacular artillery group not be able to hit the plane? The landlord really wronged people, and the anti-aircraft guns of the Yamato shot down a total of 3 planes at that time.

The sinking of Japan's strongest battleship, the Yamato.

On April 5, 1945, the Military Command Department officially issued the order for Operation Tenichi to order the "Yamato" to make a suicide sortie, and on April 6, 1945, 10** (1 cruiser and 8 destroyers) of the 2nd Fleet with the "Yamato" as the flagship set sail from the Tokuyama anchorage in the western part of the Seto Inland Sea under the command of Vice Admiral Seto Junichi.

On April 7, the formation was spotted and subsequently attacked.

At 12:31 on April 7, 1945, the first attack wave sent by the 58th Task Force of the United States Navy, American aircraft concentrated on the port side of the Yamato, and 4 bombs fell near the "No. 3 main turret, of which 2 225 kg bombs penetrated the rear main deck**, blowing up the 155 mm secondary gun and reserve fire command post in the rear of the battleship."

At 12:43, the port side was hit by 1 torpedo in the forward, and the speed dropped to 22 knots. At 13:35, the second attack wave plane of the US military arrived.

At 13:37, three torpedoes were hit in the middle of the port side of the hull (each hitting the ribs), causing the hull to tilt to the left by 7-8 degrees. Almost at the same time, since a 450-kilogram aerial bomb blew up the drain valve, making it impossible for the ship to carry out displacement operations, the captain ordered a symmetrical filling of water into the starboard compartment to restore hull balance, and the speed was reduced to 18 knots.

At 13:44, the port side was hit by 2 more torpedoes, increasing the left roll to 15-16 degrees, which made the ship's large-caliber anti-aircraft guns unusable.

At 14:01, three aerial bombs of the US plane hit the middle of the port side.

At 14:07, a torpedo also hit the rib of the ship No. 150 on the starboard side.

At 14:12, the middle and aft parts of the port side of the Yamato were hit by two more torpedoes, and the hull tilted up to 16-18 degrees. Since the starboard injection drain area was already filled with water, it was necessary to continue to fill the machinery room, rest room and boiler room.

At 14:15, the port side hit another thunder, and the speed gradually decreased to 7 knots, and the captain was forced to issue an order to abandon the ship.

At 14:23, the main gun ammunition depot occurred**, and only 269 of the 2,498 officers and men of the ship (including 2,767 headquarters personnel) were rescued (another 7 headquarters personnel were rescued), and its sinking site was in the south west of Kyushu Island, northwest of Tokunoshima, 128 degrees 04 minutes east longitude, 30 degrees 43 minutes north latitude.

Sunk, the history of battleships with cannon over

The Yamato (Battleship) was one of the largest superbattleships in history built by the Imperial Japanese Navy. When the Yamato was completed, it had a standard displacement of 65,000 tons, a trial displacement of 69,100 tons, and a full load displacement of 72,808 tons Note 1. The total length of the hull is 263 meters, the waterline is 256 meters long, the perpendicular length is 244 meters, the ship width is meters, the waterline is wide meters, the depth is meters, the average draft (sea trial) meters, and the average draft meters at full load.

On April 7, 1945, the battleship Yamato was sunk by U.S. planes 50 nautical miles southwest of Kyushu, Japan, during the Battle of Okinawa. Thank you for adopting.

Japan spent a lot of money to add a lot of new equipment to its shipbuilding industry, buying 15,000 tons of hydraulic presses and three 70-ton acid open-hearth furnaces from Germany, which enabled it to manufacture large forgings, including 650 mm thick armor steel plates. And the dock of the Kure Naval Yard was deliberately deepened by 1 meter. During the entire construction of the Yamato, the Japanese spent 150 billion yen on the ship, with an average weight of 2 million yen per ton.

One of the major problems encountered by Japan in the manufacture of the main gun was how to ensure that the main gun body could have sufficient strength under high bore pressure. The 480-mm naval gun trial-produced in 1920 was scrapped in the test firing due to insufficient strength, and the 460-mm naval gun 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 in this way was successful in test firing, and its barrel life was 200-250 rounds.

In May-October 1939, the boiler installation of the No. 1 ship was completed, and in September-November, the main engine was installed. On July 15, 1940, the No. 1 ship was named "Yamato", a name derived from the Yamato Province of the Five Kingdoms of Kinai in ancient Japan, and it is also the name of the Japanese for their own nation.

The Yamato was launched on August 8, 1940. In order to maintain secrecy during construction, the shipyard implements strict confidentiality control, and hoarding is added to places that overlook the shipyard.

The construction of the "Yamato" began in 1937 and was completed and launched at the end of 1941. did not catch up with the attack on Pearl Harbor, but took part in the Battle of Midway. It has a length of 263 meters, a displacement of 640,000 tons, and nine cannons of 46 cm caliber.

These figures have created the largest number in the history of shipbuilding in the world, and the German "Bismarck" that shocked the Western naval circles in those years can only be "a small drop in the bucket" compared with it. 1 shell weighed a ton and a half, and in the barrel the strong man could climb in and out freely. The steel armor on the side is nearly half a meter thick, and it is called the "unsinkable Yamato" type auspicious wax.

In Japan, the "Yamato" is both the first and the most important sign of the nation, this ship symbolizes the soul of the Japanese nation, and has been the flagship of the Combined Fleet since its service.