Kaiten Type 1 Launch Test From Starboard Of Japanese Cruiser Kitakami
were crewed torpedoes and suicide craft, used by the Imperial Japanese Navy in the final stages of World War II. History In recognition of the unfavorable progress of the war, towards the end of 1943 the Japanese high command considered suggestions for various suicide craft. These suggestions were initially rejected, but later deemed necessary. Various suicide craft were developed in the Japanese Special Attack Units. For the Navy, this meant ''Kamikaze'' planes, '' Shinyo'' suicide boats, ''Kaiten'' submarines, and '' Fukuryu'' suicide divers or human mines. The ''Kamikazes'' were somewhat successful, and the second most successful were the ''Kaitens''. Research on the first Kaiten began in February 1944, followed on 25 July of the same year by the first prototype. By 1 August, an order for 100 units had been placed. Development The very first Kaiten was nothing much more than a Type 93 torpedo engine compartment attached to a cylinder that would become the pilot's co ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Yūshūkan
The ("Place to commune with a noble soul") is a Japanese military and war museum located within Yasukuni Shrine in Chiyoda, Tokyo. As a museum maintained by the shrine, which is dedicated to the souls of soldiers who died fighting on behalf of the Emperor of Japan, the museum contains various artifacts and documents concerning Japanese war casualties and military activity from the start of the Meiji Restoration to the end of World War II. The museum was established in 1882, and describes itself as the first and oldest war and military museum in Japan. It has attracted controversy for its revisionism of Japanese's wartime actions and militaristic past. History The museum was initially established in 1882 to preserve and display Meiji Restoration-era artifacts of the Imperial Japanese Army. Following the First Sino-Japanese War and Russo-Japanese War, the Meiji Emperor issued his 192nd order in 1910, which ordered the preservation of military artifacts. The building was expanded ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Type 93 Torpedo
The was a -diameter torpedo of the Imperial Japanese Navy (IJN), launched from surface ships. It is commonly referred to as the Long Lance by most modern English-language naval historians, a nickname given to it after the war by Samuel Eliot Morison, the chief historian of the U.S. Navy, who spent much of the war in the Pacific Theater. In Japanese references, the term is also used, in reference to its propulsion system. It was the most advanced naval torpedo in the world at the time. History and development The Type 93's development (in parallel with a submarine-launched model, the Type 95) began in Japan in 1928, under the auspices of Rear Admiral Kaneji Kishimoto and Captain Toshihide Asakuma. The torpedo design was inspired by the British oxygen-enriched torpedoes used on the s. At the time, the most powerful potential enemy of the Japanese Navy was the United States Navy's Pacific Fleet. The U.S. Navy's doctrine, presuming an invasion by Japan of the Philippines (an Am ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Cruiser
A cruiser is a type of warship. Modern cruisers are generally the largest ships in a fleet after aircraft carriers and amphibious assault ships, and can usually perform several roles. The term "cruiser", which has been in use for several hundred years, has changed its meaning over time. During the Age of Sail, the term ''cruising'' referred to certain kinds of missions—independent scouting, commerce protection, or raiding—fulfilled by frigates or sloops-of-war, which functioned as the ''cruising warships'' of a fleet. In the middle of the 19th century, ''cruiser'' came to be a classification of the ships intended for cruising distant waters, for commerce raiding, and for scouting for the battle fleet. Cruisers came in a wide variety of sizes, from the medium-sized protected cruiser to large armored cruisers that were nearly as big (although not as powerful or as well-armored) as a pre-dreadnought battleship. With the advent of the dreadnought battleship before World W ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Kaiten Type 1 Launch Test From Starboard Of Japanese Cruiser Kitakami
were crewed torpedoes and suicide craft, used by the Imperial Japanese Navy in the final stages of World War II. History In recognition of the unfavorable progress of the war, towards the end of 1943 the Japanese high command considered suggestions for various suicide craft. These suggestions were initially rejected, but later deemed necessary. Various suicide craft were developed in the Japanese Special Attack Units. For the Navy, this meant ''Kamikaze'' planes, '' Shinyo'' suicide boats, ''Kaiten'' submarines, and '' Fukuryu'' suicide divers or human mines. The ''Kamikazes'' were somewhat successful, and the second most successful were the ''Kaitens''. Research on the first Kaiten began in February 1944, followed on 25 July of the same year by the first prototype. By 1 August, an order for 100 units had been placed. Development The very first Kaiten was nothing much more than a Type 93 torpedo engine compartment attached to a cylinder that would become the pilot's co ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Kaiten Bases Locations
were crewed torpedoes and suicide craft, used by the Imperial Japanese Navy in the final stages of World War II. History In recognition of the unfavorable progress of the war, towards the end of 1943 the Japanese high command considered suggestions for various suicide craft. These suggestions were initially rejected, but later deemed necessary. Various suicide craft were developed in the Japanese Special Attack Units. For the Navy, this meant ''Kamikaze'' planes, '' Shinyo'' suicide boats, ''Kaiten'' submarines, and ''Fukuryu'' suicide divers or human mines. The ''Kamikazes'' were somewhat successful, and the second most successful were the ''Kaitens''. Research on the first Kaiten began in February 1944, followed on 25 July of the same year by the first prototype. By 1 August, an order for 100 units had been placed. Development The very first Kaiten was nothing much more than a Type 93 torpedo engine compartment attached to a cylinder that would become the pilot's com ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Kaiten Memorial Museum
is a museum on the island of Ōzushima in the Inland Sea, in Shūnan, Yamaguchi Prefecture, Japan, dedicated to the history and memory of the ''Kaiten'', a Special Attack Unit of the Imperial Japanese Navy. The museum first opened near the remains of the island's training base in 1968, reopening in today's building in 1998. The collection of some one thousand items includes wills, letters, uniforms, personal belongings, and photographs. The displays combine these exhibits with information panels on the background and history of the unit and the lives of those served in it. The museum is "a facility for learning about Peace through the minds and hearts of the ''Kaiten''".「「回天」の心を通じ平和について学習する施設」 See also * Setonaikai National Park * Chiran Peace Museum for Kamikaze Pilots * Bansei Tokkō Peace Museum * Japanese Special Attack Units * Ōkunoshima is a small island in the Inland Sea of Japan. It is considered to be part of the ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Seto Inland Sea
The , sometimes shortened to the Inland Sea, is the body of water separating Honshū, Shikoku, and Kyūshū, three of the four main islands of Japan. It serves as a waterway connecting the Pacific Ocean to the Sea of Japan. It connects to Osaka Bay and provides a sea transport link to industrial centers in the Kansai region, including Osaka and Kobe. Before the construction of the San'yō Main Line, it was the main transportation link between Kansai and Kyūshū. Yamaguchi Prefecture, Yamaguchi, Hiroshima Prefecture, Hiroshima, Okayama Prefecture, Okayama, Hyōgo Prefecture, Hyōgo, Osaka Prefecture, Osaka, Wakayama Prefecture, Wakayama, Kagawa Prefecture, Kagawa, Ehime Prefecture, Ehime, Tokushima Prefecture, Tokushima, Fukuoka Prefecture, Fukuoka, and Ōita Prefecture, Ōita prefectures have coastlines on the Seto Inland Sea; the cities of Hiroshima, Iwakuni, Takamatsu, Kagawa, Takamatsu, and Matsuyama, Ehime, Matsuyama are also located on it. The Setouchi Region, Setouchi re ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Ōzushima
, or Ozu Island, is an inhabited island in the Inland Sea, Japan. Administratively, it forms part of the city of Shūnan, Yamaguchi Prefecture. Ōzushima is also known as "Kaiten Island". Geography Situated in the Seto Inland Sea across the exit from Tokuyama Bay and formerly two islands, Ōzushima and are said to have become one some four hundred years ago. Gently curved, long, and thin, and with a outline that somewhat resembles a misshapen Y, today's Ōzushima extends some from north to south, and has an area of . There are a number of small settlements along the coast, including and , the centres for the island's masons and stoneworkers, the farming communities of and , and the fishing hamlets of and . Parks on the island include Ōzushima Park and Mashima Park, while part of the island and its surrounding waters is protected within Setonaikai National Park. The southern coastline is suffering from severe coastal erosion. Flora On Mashima, the southern end of the islan ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Type 92 Torpedo
The Type 92 torpedo was a submarine-launched torpedo used by the Imperial Japanese Navy during World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposin .... It was in length and 21 inches (53 cm) in diameter. This type of torpedo was battery powered. It could deliver a 660-pound (300 kg) warhead at 30 knots (55 km/h) to a target 7 kilometers (3.8 nautical miles) away. Torpedoes of Japan World War II weapons of Japan World War II naval weapons {{Missile-stub ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Gyroscope
A gyroscope (from Ancient Greek γῦρος ''gŷros'', "round" and σκοπέω ''skopéō'', "to look") is a device used for measuring or maintaining orientation and angular velocity. It is a spinning wheel or disc in which the axis of rotation (spin axis) is free to assume any orientation by itself. When rotating, the orientation of this axis is unaffected by tilting or rotation of the mounting, according to the conservation of angular momentum. Gyroscopes based on other operating principles also exist, such as the microchip-packaged MEMS gyroscopes found in electronic devices (sometimes called gyrometers), solid-state ring lasers, fibre optic gyroscopes, and the extremely sensitive quantum gyroscope. Applications of gyroscopes include inertial navigation systems, such as in the Hubble Space Telescope, or inside the steel hull of a submerged submarine. Due to their precision, gyroscopes are also used in gyrotheodolites to maintain direction in tunnel mining. Gyroscopes ca ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Pneumatics
Pneumatics (from Greek ‘wind, breath’) is a branch of engineering that makes use of gas or pressurized air. Pneumatic systems used in industry are commonly powered by compressed air or compressed inert gases. A centrally located and electrically-powered compressor powers cylinders, air motors, pneumatic actuators, and other pneumatic devices. A pneumatic system controlled through manual or automatic solenoid valves is selected when it provides a lower cost, more flexible, or safer alternative to electric motors, and hydraulic actuators. Pneumatics also has applications in dentistry, construction, mining, and other areas. Gases used in pneumatic systems Pneumatic systems in fixed installations, such as factories, use compressed air because a sustainable supply can be made by compressing atmospheric air. The air usually has moisture removed, and a small quantity of oil is added at the compressor to prevent corrosion and lubricate mechanical components. Factory-plumb ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Hydraulics
Hydraulics (from Greek: Υδραυλική) is a technology and applied science using engineering, chemistry, and other sciences involving the mechanical properties and use of liquids. At a very basic level, hydraulics is the liquid counterpart of pneumatics, which concerns gases. Fluid mechanics provides the theoretical foundation for hydraulics, which focuses on the applied engineering using the properties of fluids. In its fluid power applications, hydraulics is used for the generation, control, and transmission of power by the use of pressurized liquids. Hydraulic topics range through some parts of science and most of engineering modules, and cover concepts such as pipe flow, dam design, fluidics and fluid control circuitry. The principles of hydraulics are in use naturally in the human body within the vascular system and erectile tissue. Free surface hydraulics is the branch of hydraulics dealing with free surface flow, such as occurring in rivers, canals, lakes, estuar ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |