|
Japanese 45 Cm Torpedo
Numerous 45 cm (17.7-inch or 18-inch) torpedoes have been used by the Imperial Japanese Navy and Imperial Japanese Navy Air Service. The size category has not been used by Japan since the end of the Second World War. Torpedoes of 18-inch caliber were much more common during the early 20th century. Historically, this size category was often Aerial torpedo, used by aircraft. Submarines and surface ships generally used Japanese 53 cm torpedo, 53 cm torpedoes, and surface ships additionally used Japanese 61 cm torpedo, 61 cm torpedoes. Japan also employs Japanese 32 cm torpedo, 32 cm torpedoes which conform to the NATO 12.75-inch (323.8mm) standard originally defined by the dimensions of the Mark 46 torpedo; these are dedicated Anti-submarine warfare, ASW weapons, often delivered via aircraft. Due to their historical importance, this page also includes the smaller 14-inch (35.6cm) predecessors to the 45 cm torpedoes, and some of the miscellaneous developments during the Second World Wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Imperial Japanese Navy
The Imperial Japanese Navy (IJN; Kyūjitai: Shinjitai: ' 'Navy of the Greater Japanese Empire', or ''Nippon Kaigun'', 'Japanese Navy') was the navy of the Empire of Japan from 1868 to 1945, Potsdam Declaration, when it was dissolved following surrender of Japan, Japan's surrender in World War II. The Japan Maritime Self-Defense Force (JMSDF) was formed between 1952 and 1954 after the dissolution of the IJN. The IJN was the third largest navy in the world by 1920, behind the Royal Navy and the United States Navy (USN). It was supported by the Imperial Japanese Navy Air Service for reconnaissance and airstrike operations from the fleet. It was the primary opponent of the Allies of World War II, Western Allies in the Pacific War. The IJN additionally fielded Imperial Japanese Navy land forces, limited land-based forces, including Special Naval Landing Forces, professional marines, Japanese marine paratroopers of World War II, marine paratrooper units, anti-aircraft defense units ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boshin War
The , sometimes known as the Japanese Revolution or Japanese Civil War, was a civil war in Japan fought from 1868 to 1869 between forces of the ruling Tokugawa shogunate and a coalition seeking to seize political power in the name of the Imperial Court in Kyoto, Imperial Court. The war stemmed from dissatisfaction among many Kazoku, nobles and young samurai with the shogunate's handling of foreigners following the opening of Japan during the prior decade. Increasing Unequal treaties, Western influence in the economy led to a decline similar to that of other Asian countries at the time. An alliance of western samurai, particularly the domains of Chōshū Domain, Chōshū, Satsuma Domain, Satsuma, and Tosa Domain, Tosa, and court officials secured control of the Imperial Court and influenced the young Emperor Meiji. Tokugawa Yoshinobu, the sitting ''shōgun'', realizing the futility of his situation, abdicated and handed over political power to the emperor. Yoshinobu had hoped t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Torpedo Schwartzkopff, Museo Naval, Madrid, España, 2021 02
A modern torpedo is an underwater ranged weapon launched above or below the water surface, self-propelled towards a target, with an explosive warhead designed to detonate either on contact with or in proximity to the target. Historically, such a device was called an automotive, automobile, locomotive, or fish torpedo; colloquially, a ''fish''. The term ''torpedo'' originally applied to a variety of devices, most of which would today be called mines. From about 1900, ''torpedo'' has been used strictly to designate a self-propelled underwater explosive device. While the 19th-century battleship had evolved primarily with a view to engagements between armored warships with large-caliber guns, the invention and refinement of torpedoes from the 1860s onwards allowed small torpedo boats and other lighter surface vessels, submarines/submersibles, even improvised fishing boats or frogmen, and later light aircraft, to destroy large ships without the need of large guns, though sometime ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Journal Of The Royal Naval Scientific Service
A journal, from the Old French ''journal'' (meaning "daily"), may refer to: *Bullet journal, a method of personal organization *Diary, a record of personal secretive thoughts and as open book to personal therapy or used to feel connected to oneself. A record of what happened over the course of a day or other period *Daybook, also known as a general journal, a daily record of financial transactions *Logbook, a record of events important to the operation of a vehicle, facility, or otherwise *Transaction log, a chronological record of data processing *Travel journal, a record of the traveller's experience during the course of their journey In publishing, ''journal'' can refer to various periodicals or serials: *Academic journal, an academic or scholarly periodical **Scientific journal, an academic journal focusing on science **Medical journal, an academic journal focusing on medicine **Law review, a professional journal focusing on legal interpretation *Magazine, non-academic or scho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Guncotton
Nitrocellulose (also known as cellulose nitrate, flash paper, flash cotton, guncotton, pyroxylin and flash string, depending on form) is a highly flammable compound formed by nitrating cellulose through exposure to a mixture of nitric acid and sulfuric acid. One of its first major uses was as guncotton, a replacement for gunpowder as propellant in firearms. It was also used to replace gunpowder as a low-order explosive in mining and other applications. In the form of collodion, it was also a critical component in an early photographic emulsion, the use of which revolutionized photography in the 1860s. In the 20th century, it was adapted to automobile lacquer and adhesives. Production The process uses a mixture of nitric acid and sulfuric acid to convert cellulose into nitrocellulose. The quality of the cellulose is important. Hemicellulose, lignin, pentosans, and mineral salts give inferior nitrocelluloses. In organic chemistry, nitrocellulose is a nitrate ester, not a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Japanese Cruiser Yoshino
was a protected cruiser of the Imperial Japanese Navy. ''Yoshino'' is sometimes regarded as a sister ship to , although the two vessels are of different classes. The name ''Yoshino'' comes from the Yoshino mountains, located in the southern portion of Nara prefecture. She played an important role in the First Sino-Japanese War, but was sunk in the Russo-Japanese War after being rammed by Japanese armored cruiser in dense fog. Background ''Yoshino'' was an improved design of the Argentine Navy cruiser ''Veinticinco de Mayo'' designed by Sir Philip Watts, and built by the Armstrong Whitworth shipyards in Elswick, in the United Kingdom. Watts was also responsible for the design of the cruiser and the s. When commissioned, ''Yoshino'' was the largest ship in the Imperial Japanese Navy, and was also the fastest cruiser in the world when she entered service.Evans, ''Kaigun'', p. 34.Elleman, ''Modern Chinese Warfare'', p. 102. Design ''Yoshino'' was a typical Elswick cruiser des ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Japanese Cruiser Matsushima
was a protected cruiser of the Imperial Japanese Navy. Like her sister ships, (the and ) her name comes from one of the traditional Three Views of Japan, in this case, the Matsushima archipelago near Sendai in Miyagi prefecture. Background Forming the backbone of the Imperial Japanese Navy during the First Sino-Japanese War, the ''Matsushima''-class cruisers were based on the principles of Jeune École, as promoted by French military advisor and naval architect Louis-Émile Bertin.Roksund, ''The Jeune École: The Strategy of the Weak''; The Japanese government did not have the resources or budget to build a battleship navy to counter the various foreign powers active in Asia; instead, Japan adopted the radical theory of using smaller, faster warships, with light armor and small caliber long-range guns, coupled with a massive single Canet gun. The design eventually proved impractical, as the recoil from the huge cannon was too much for a vessel of such small displacement, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Whitehead Torpedo Works
Whitehead Torpedo Works was a company established in the 19th century by Robert Whitehead (engineer), Robert Whitehead that developed the Whitehead torpedo. It grew from its initial location at Fiume to Wyke Regis and to Livorno, but the former two plants closed by the end of World War II. The Italian branch maintained the name Whitehead for a long time into the late 20th century, and still exists as Leonardo Sistemi di Difesa . History Robert Whitehead (engineer), Robert Whitehead worked for a metal foundry in the city of Fiume (today Rijeka, Croatia), and became its manager in 1856, and changed its name to ''Stabilimento Tecnico di Fiume'' (STF). STF produced marine steam boilers and engines, including for the Austro-Hungarian Navy. The invention of the self-propelled torpedo happened at that company, but it was not profitable and the company went bankrupt in 1873. The Whitehead company, Torpedo-Fabrik von Robert Whitehead, was founded in 1875 and would produce for the first tor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Knock-down Kit
A knock-down kit (also knockdown kit, knocked-down kit, or simply knockdown or KD) is a collection of parts required to assemble a product. The parts are typically manufactured in one country or region, and then exported to another country or region for final assembly. CBU, on the other hand, stands for "Completely Built Up" and signifies import of a finished product. Definitions A common form of knock-down is a complete knock-down (CKD), which is a kit of entirely unassembled parts of a product. It is also a method of supplying parts to a market, particularly in shipping to foreign nations, and serves as a way of counting or pricing. CKD is a common practice in the automotive industry, automotive, bus, heavy truck, and rail transport, rail vehicle industries, as well as electronics, furniture and other products. Businesses sell knocked-down kits to their foreign affiliates or licensees for various reasons, including the avoidance of import taxes, to receive tax preferences for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Russo-Japanese War
The Russo-Japanese War (8 February 1904 – 5 September 1905) was fought between the Russian Empire and the Empire of Japan over rival imperial ambitions in Manchuria and the Korean Empire. The major land battles of the war were fought on the Liaodong Peninsula and near Shenyang, Mukden in Southern Manchuria, with naval battles taking place in the Yellow Sea and the Sea of Japan. Russia had pursued an expansionist policy in Siberia and the Russian Far East, Far East since the reign of Ivan the Terrible in the 16th century. At the end of the First Sino-Japanese War, the Treaty of Shimonoseki of 1895 had ceded the Liaodong Peninsula and Lüshun Port, Port Arthur to Japan before the Triple Intervention, in which Russia, Germany, and France forced Japan to relinquish its claim. Japan feared that Russia would impede its plans to establish a sphere of influence in mainland Asia, especially as Russia built the Trans-Siberian Railway, Trans-Siberian Railroad, began making inroads in K ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
