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Tamotsu Oishi
was a career officer in the Imperial Japanese Navy during World War II. Biography Born in Kōchi Prefecture, Oishi graduated from the 48th class of the Imperial Japanese Naval Academy in 1920, with a ranking of 13th out of a class of 171 cadets. As a midshipman, he served on the cruiser and battleship . After his promotion to ensign in 1921, he was assigned to the destroyer , followed by the oiler ''Shiretoko'', and then the battleship . After his promotion to lieutenant on 1 December 1925, he specialized in navigation and served as chief navigator on the destroyers and , submarine tender ''Jingei'', and cruiser . Oishi graduated from the Naval Staff College in 1930 and was promoted to lieutenant commander in 1932. He served as chief torpedo officer on the cruiser . After his promotion to commander in 1937, he received his first command: the gunboat in 1938. He subsequently served in number of staff positions, including assignments to the 1st Carrier Strike Force of the Co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kōchi, Kōchi
is the capital city of Kōchi Prefecture located on the island of Shikoku in Japan. With over 40% of the prefectural population, Kōchi is the main commercial and industrial centre and the "primate city" of the prefecture. , the city had an estimated population of 320,513 in 164650 households, and a population density of 1000 persons per km². The total area of the city is . Overview A symbol of the city is its most famous dish, katsuo ''tataki'', made by lightly searing and seasoning bonito. Cityscape File:Kochi Japan.jpg, Skyline of Kōchi City（2006） File:080229 Obiyamachi Street Kochi Kochi pref Japan01s.jpg, Obiyamachi in Downtown Kōchi City（2008） File:Nichiyoichi.jpg, Sunday street markets（2009） File:Kochi-City.jpg, CBD of Kōchi City（2010） File:高知城 天守からの景色3 Kochi Castle - panoramio.jpg, Views from Kōchi Castle Keep Tower（2013） File:Kochi Castle, enkei.jpg, Kōchi Castle（2020） Geography Kōchi is located on the southern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oiler (ship)
A replenishment oiler or replenishment tanker is a naval auxiliary ship with fuel tanks and dry cargo holds which can supply both fuel and dry stores during underway replenishment (UNREP) at sea. Many countries have used replenishment oilers. The United States Navy's hull classification symbol for this type of ship was AOR. Replenishment oilers are slower and carry fewer dry stores than the U.S. Navy's modern fast combat support ships, which carry the classification AOE. History The development of the "oiler" paralleled the change from coal- to oil-fired boilers in warships. Prior to the adoption of oil fired machinery, navies could extend the range of their ships either by maintaining coaling stations or for warships to raft together with colliers and for coal to be manhandled aboard. Though arguments related to fuel security were made against such a change, the ease with which liquid fuel could be transferred led in part to its adoption by navies worldwide. One of the first ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Merchant Raider
Merchant raiders are armed commerce raiding ships that disguise themselves as non-combatant merchant vessels. History Germany used several merchant raiders early in World War I (1914–1918), and again early in World War II (1939–1945). The captain of a German merchant raider, Felix von Luckner, used the sailing ship SMS ''Seeadler'' for his voyage (1916–1917). The Germans used a sailing ship at this stage of the war because coal-fired ships had limited access to fuel outside of territories held by the Central Powers due to international regulations concerning refueling of combat ships in neutral countries. Germany sent out two waves of six surface raiders each during World War II. Most of these vessels were in the range. Many of these vessels had originally been refrigerator ships, used to transport fresh food from the tropics. These vessels were faster than regular merchant vessels, which was important for a warship. They were armed with six 15 cm (5.9 inch) naval gu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Attack On Pearl Harbor
The attack on Pearl HarborAlso known as the Battle of Pearl Harbor was a surprise military strike by the Imperial Japanese Navy Air Service upon the United States against the naval base at Pearl Harbor in Honolulu, Territory of Hawaii, just before 8:00a.m. (local time) on Sunday, December 7, 1941. The United States was a neutral country at the time; the attack led to its formal entry into World War II the next day. The Japanese military leadership referred to the attack as the Hawaii Operation and Operation AI, and as Operation Z during its planning. Japan intended the attack as a preventive action. Its aim was to prevent the United States Pacific Fleet from interfering with its planned military actions in Southeast Asia against overseas territories of the United Kingdom, the Netherlands, and those of the United States. Over the course of seven hours there were coordinated Japanese attacks on the US-held Philippines, Guam, and Wake Island and on the British Empire ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1st Air Fleet Of The Imperial Japanese Navy
The , also known as the ''Kidō Butai'' ("Mobile Force"), was a name used for a combined carrier battle group comprising most of the aircraft carriers and carrier air groups of the Imperial Japanese Navy (IJN) during the first eight months of the Pacific War. At the time of its best-known operation, the attack on Pearl Harbor, in December 1941, the 1st Air Fleet was the world's largest fleet of aircraft carriers. In its second generation, 1st Air Fleet was a land-based fleet of "kichi kōkūtai" (base air unit(s)). Origins In 1912, the British Royal Navy had established its own flying branch, the Royal Naval Air Service (RNAS). The IJN was modeled on the Royal Navy and the IJN Admiralty sought establishment of their own Naval Air Service. The IJN had also observed technical developments in other countries and saw military potential of the airplane. In 1913, the IJN seaplane carrier ''Wakamiya'' was converted into a seaplane tender and aircraft were purchased. The 1st and 2nd Air ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Combined Fleet
The was the main sea-going component of the Imperial Japanese Navy. Until 1933, the Combined Fleet was not a permanent organization, but a temporary force formed for the duration of a conflict or major naval maneuvers from various units normally under separate commands in peacetime. History Sino-Japanese War (1894–95) The Combined Fleet was formally created for the first time on 18 July 1894 by the merger of the Standing Fleet and the Western Fleet. The Standing Fleet (also known as the Readiness Fleet) contained the navy's most modern and combat-capable warships. The Western Fleet was a reserve force consisting primarily of obsolete ships deemed unsuitable for front-line combat operations, but still suitable for commerce protection and coastal defense. Vice-admiral Itō Sukeyuki was appointed the first Commander-in-Chief of the Combined Fleet for the duration of the first Sino-Japanese War against China. Russo-Japanese War (1904–05) The Combined Fleet was re-formed d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gunboat
A gunboat is a naval watercraft designed for the express purpose of carrying one or more guns to bombard coastal targets, as opposed to those military craft designed for naval warfare, or for ferrying troops or supplies. History Pre-steam era In the age of sail, a gunboat was usually a small undecked vessel carrying a single smoothbore cannon in the bow, or just two or three such cannons. A gunboat could carry one or two masts or be oar-powered only, but the single-masted version of about length was most typical. Some types of gunboats carried two cannons, or else mounted a number of swivel guns on the railings. The small gunboat had advantages: if it only carried a single cannon, the boat could manoeuvre in shallow or restricted areas – such as rivers or lakes – where larger ships could sail only with difficulty. The gun that such boats carried could be quite heavy; a 32-pounder for instance. As such boats were cheap and quick to build, naval forces favoured swarm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Commander
Commander (commonly abbreviated as Cmdr.) is a common naval officer rank. Commander is also used as a rank or title in other formal organizations, including several police forces. In several countries this naval rank is termed frigate captain. Commander is also a generic term for an officer commanding any armed forces unit, for example "platoon commander", "brigade commander" and "squadron commander". In the police, terms such as "borough commander" and "incident commander" are used. Commander as a naval and air force rank Commander is a rank used in navies but is very rarely used as a rank in armies. The title, originally "master and commander", originated in the 18th century to describe naval officers who commanded ships of war too large to be commanded by a lieutenant but too small to warrant the assignment of a post-captain and (before about 1770) a sailing master; the commanding officer served as his own master. In practice, these were usually unrated sloops-of-war of no ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Torpedo
A modern torpedo is an underwater ranged weapon launched above or below the water surface, self-propelled towards a target, and 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 naval mine, 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 naval artillery, large-caliber guns, the invention and refinement of torpedoes from the 1860s onwards allowed small torpedo boats and other lighter surface combatant , surface vessels, submarines/submersibles, even improvised fishing boats or frogmen, and later light aircraft, to destroy large shi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lieutenant Commander
Lieutenant commander (also hyphenated lieutenant-commander and abbreviated Lt Cdr, LtCdr. or LCDR) is a commissioned officer rank in many navies. The rank is superior to a lieutenant and subordinate to a commander. The corresponding rank in most armies and air forces is major, and in the Royal Air Force and other Commonwealth air forces is squadron leader. The NATO rank code is mostly OF-3. A lieutenant commander is a department officer or the executive officer ( second-in-command) on many warships and smaller shore installations, or the commanding officer of a smaller ship/installation. They are also department officers in naval aviation squadrons. Etymology Most Commonwealth and other navies address lieutenant commanders by their full rank or the positions they occupy ("captain" if in command of a vessel). The United States Navy, however, addresses officers by their full rank or the higher grade of the rank. For example, oral communications in formal and informal s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Naval War College (Japan)
:''This article deals with the Empire of Japan's Naval War College. For other war colleges, see: War college.'' The , Short form: 海大 Kaidai) was the staff college of the Imperial Japanese Navy, responsible for training officers for command positions either on warships, or in staff roles. In the 1880s, the Imperial Japanese Navy realized the need for post-graduate study by officer graduates of the Imperial Japanese Naval Academy. Naval Minister Saigō Tsugumichi authorized the formation of the Naval War College on 14 July 1888 in Tsukiji, Tokyo, and the College accepted its first class from 28 August 1888. The same year the Imperial Japanese Naval Academy moved from Tsukiji to Etajima in Hiroshima Prefecture. The Navy turned to the United Kingdom for assistance in modernizing and Westernizing, and the Royal Navy provided military advisors to assist in the development of the curriculum. The first director of the Naval War College was Inoue Kaoru and one of the foremost of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jingei Class Submarine Tender
The were a class of submarine tenders of the Imperial Japanese Navy (IJN), and served from the 1920s through World War II. Two vessels of this class were built between 1922 and 1924 under the Eight-eight fleet plan. Background The IJN planned to build over 100 submarines under the Eight-eight fleet plan, and it was recognized that support ships would be needed. The ''Jingei'' class was planned specifically for this purpose. The duties of a submarine tender included serving as a flagship for the Submarine Division Commander and as a depot ship for the nine ''Kaichū''-type submarines in a division.One Submarine Flotilla = 3 × submarines, one Submarine Division = 3 × Submarine Flotillas. Design At first, the ''Jingei'' class was planned as a 14,500 ton submarine tender. However, the specifications were revised to 8,500 tons (standard), as stipulated by the Washington Naval Treaty. This treaty would turn out to have a great impact on the Japanese shipbuilding industry. The IJN ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
