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Japanese Submarine Ha-105
''Ha-105'' was an Imperial Japanese Navy ''Ha-101''-class submarine. Completed and commissioned in February 1945, she served during the final months of World War II, conducting a supply run and operating on radar picket duty. She surrendered at the end of the war in September 1945 and was scuttled in April 1946. Design and description The ''Ha-101''-class submarines were designed as small, cheap transport submarines to resupply isolated island garrisons. They displaced surfaced and submerged. The submarines were long, had a beam of and a draft of . They were designed to carry of cargo.Carpenter & Dorr, p. 140 For surface running, the boats were powered by a single diesel engine that drove one propeller shaft. When submerged the propeller was driven by a electric motor. They could reach on the surface and underwater.Chesneau, p. 204 On the surface, the ''Ha-101''s had a range of at ; submerged, they had a range of at . The boats were armed a single mount for a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aircraft Carrier
An aircraft carrier is a warship that serves as a seagoing airbase, equipped with a full-length flight deck and facilities for carrying, arming, deploying, and recovering aircraft. Typically, it is the capital ship of a fleet, as it allows a naval force to project air power worldwide without depending on local bases for staging aircraft operations. Carriers have evolved since their inception in the early twentieth century from wooden vessels used to deploy balloons to nuclear-powered warships that carry numerous fighters, strike aircraft, helicopters, and other types of aircraft. While heavier aircraft such as fixed-wing gunships and bombers have been launched from aircraft carriers, these aircraft have not successfully landed on a carrier. By its diplomatic and tactical power, its mobility, its autonomy and the variety of its means, the aircraft carrier is often the centerpiece of modern combat fleets. Tactically or even strategically, it replaced the battleship in the ro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beam (nautical)
The beam of a ship is its width at its widest point. The maximum beam (BMAX) is the distance between planes passing through the outer extremities of the ship, beam of the hull (BH) only includes permanently fixed parts of the hull, and beam at waterline (BWL) is the maximum width where the hull intersects the surface of the water. Generally speaking, the wider the beam of a ship (or boat), the more initial stability it has, at the expense of secondary stability in the event of a capsize, where more energy is required to right the vessel from its inverted position. A ship that heels on her ''beam ends'' has her deck beams nearly vertical. Typical values Typical length-to-beam ratios ( aspect ratios) for small sailboats are from 2:1 (dinghies to trailerable sailboats around ) to 5:1 (racing sailboats over ). Large ships have widely varying beam ratios, some as large as 20:1. Rowing shells designed for flatwater racing may have length to beam ratios as high as 30:1, while a cor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amami Islands
The The name ''Amami-guntō'' was standardized on February 15, 2010. Prior to that, another name, ''Amami shotō'' (奄美諸島), was also used. is an archipelago in the Satsunan Islands, which is part of the Ryukyu Islands, and is southwest of Kyushu. Administratively, the group belongs to Kagoshima Prefecture, Japan. The Geospatial Information Authority of Japan and the Japan Coast Guard agreed on February 15, 2010, to use the name of for the Amami Islands. Prior to that, was also used. The name of Amami is probably cognate with , the goddess of creation in the Ryukyuan creation myth. Geography The Amami Islands are limestone islands of coralline origin and have a total area of approximately , of which constitute the city (''-shi'') of Amami, and constitute the district (''-gun'') of Oshima. The highest elevation is ''Yuwandake'' with a height of on Amami Ōshima. The climate is a humid subtropical climate (Köppen climate classification ''Cfa'') with very warm summer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amami Ōshima
, also known as Amami, is the largest island in the Amami archipelago between Kyūshū and Okinawa. It is one of the Satsunan Islands. The island, 712.35 km2 in area, has a population of approximately 73,000 people. Administratively it is divided into the city of Amami, the towns of Tatsugō, Setouchi, and the villages of Uken and Yamato in Kagoshima Prefecture. Much of the island is within the borders of the Amami Guntō National Park. In 2021, it was listed as part of the serial UNESCO World Heritage Site of Amami-Ōshima Island, Tokunoshima Island, northern part of Okinawa Island, and Iriomote Island. History It is uncertain when Amami Ōshima was first settled. Stone tools indicate settlement in the Japanese Paleolithic period, and other artifacts, including pottery, indicate a constant contact with Jōmon, Yayoi and Kofun period Japan. The island is mentioned in the ancient Japanese chronicle '' Nihon Shoki'' in an entry for the year 657 AD. During the Nara peri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Allies Of World War II
The Allies, formally referred to as the United Nations from 1942, were an international military coalition formed during the Second World War (1939–1945) to oppose the Axis powers, led by Nazi Germany, Imperial Japan, and Fascist Italy. Its principal members by 1941 were the United Kingdom, United States, Soviet Union, and China. Membership in the Allies varied during the course of the war. When the conflict broke out on 1 September 1939, the Allied coalition consisted of the United Kingdom, France, and Poland, as well as their respective dependencies, such as British India. They were soon joined by the independent dominions of the British Commonwealth: Canada, Australia, New Zealand and South Africa. Consequently, the initial alliance resembled that of the First World War. As Axis forces began invading northern Europe and the Balkans, the Allies added the Netherlands, Belgium, Norway, Greece, and Yugoslavia. The Soviet Union, which initially had a nonaggression pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kamikaze
, officially , were a part of the Japanese Special Attack Units of military aviators who flew suicide attacks for the Empire of Japan against Allied naval vessels in the closing stages of the Pacific campaign of World War II, intending to destroy warships more effectively than with conventional air attacks. About 3,800 ''kamikaze'' pilots died during the war, and more than 7,000 naval personnel were killed by ''kamikaze'' attacks. ''Kamikaze'' aircraft were essentially pilot-guided explosive missiles, purpose-built or converted from conventional aircraft. Pilots would attempt to crash their aircraft into enemy ships in what was called a "body attack" (''tai-atari'') in aircraft loaded with bombs, torpedoes and or other explosives. About 19% of ''kamikaze'' attacks were successful. The Japanese considered the goal of damaging or sinking large numbers of Allied ships to be a just reason for suicide attacks; ''kamikaze'' was more accurate than conventional attacks and often cau ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Honshu
, historically called , is the largest and most populous island of Japan. It is located south of Hokkaidō across the Tsugaru Strait, north of Shikoku across the Inland Sea, and northeast of Kyūshū across the Kanmon Straits. The island separates the Sea of Japan, which lies to its north and west, from the North Pacific Ocean to the south and east. It is the seventh-largest island in the world, and the second-most populous after the Indonesian island of Java. Honshu had a population of 104 million , constituting 81.3% of the entire population of Japan, and is mostly concentrated in the coastal areas and plains. Approximately 30% of the total population resides in the Greater Tokyo Area on the Kantō Plain. As the historical center of Japanese cultural and political power, the island includes several past Japanese capitals, including Kyōto, Nara and Kamakura. Much of the island's southern shore forms part of the Taiheiyō Belt, a megalopolis that spans several of the Japane ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kure, Hiroshima
is a port and major shipbuilding city situated on the Seto Inland Sea in Hiroshima Prefecture, Japan. With a strong industrial and naval heritage, Kure hosts the second-oldest naval dockyard in Japan and remains an important base for the Japan Maritime Self-Defence Force (JMSDF) named, JMSDF Kure Naval Base. , the city has an estimated population of 228,030 and a population density of 646 persons per km2. The total area is 352.80 km2. History The Kure Naval District was first established in 1889, leading to the construction of the Kure Naval Arsenal and the rapid growth of steel production and shipbuilding in the city. Kure was formally incorporated on October 1, 1902. From 1889 until the end of World War II, the city served as the headquarters of the Kure Naval District. Kure dockyards recorded a number of significant engineering firsts including the launching of the first major domestically built capital ship, the battlecruiser ''Tsukuba'' (1905) and the launching ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Squadron (naval)
A squadron, or naval squadron, is a significant group of warships which is nonetheless considered too small to be designated a fleet. A squadron is typically a part of a fleet. Between different navies there are no clear defining parameters to distinguish a squadron from a fleet (or from a flotilla), and the size and strength of a naval squadron varies greatly according to the country and time period. Groups of small warships, or small groups of major warships, might instead be designated flotillas by some navies according to their terminology. Since the size of a naval squadron varies greatly, the rank associated with command of a squadron also varies greatly. Before 1864 the entire fleet of the Royal Navy was divided into three squadrons, the red, the white, and the blue. Each Royal Navy squadron alone was more powerful than most national navies. Today, a squadron might number three to ten vessels, which might be major warships, transport ships, submarines, or small craft i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kure Naval District
was the second of four main administrative districts of the pre-war Imperial Japanese Navy. Its territory included the Seto Inland Sea, Inland Sea of Japan and the Pacific Ocean, Pacific coasts of southern Honshū from Wakayama prefecture, Wakayama to Yamaguchi prefectures, eastern and northern Kyūshū and Shikoku. The area of the Kure Naval District encompassed Hashirajima Anchoring Area located at the south end of Hiroshima Bay, 30-40 kilometers southwest of Kure. When not in need of repairs ships usually anchored in this area to free up pier space at Kure. Hashirajima was also a major staging area for fleet operations. Tokuyama, Yamaguchi, Tokuyama port, was also part of Kure Naval District, and had the largest fuel depot in the Japanese Navy. History The location of Kure, Hiroshima, Kure within the sheltered Inland Sea of Japan was recognized of strategic importance in controlling the sea lanes around western Japan by the Meiji government and early Imperial Japanese Navy. Wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ship Commissioning
Ship commissioning is the act or ceremony of placing a ship in active service and may be regarded as a particular application of the general concepts and practices of project commissioning. The term is most commonly applied to placing a warship in active duty with its country's military forces. The ceremonies involved are often rooted in centuries-old naval tradition. Ship naming and launching endow a ship hull with her identity, but many milestones remain before she is completed and considered ready to be designated a commissioned ship. The engineering plant, weapon and electronic systems, galley, and other equipment required to transform the new hull into an operating and habitable warship are installed and tested. The prospective commanding officer, ship's officers, the petty officers, and seamen who will form the crew report for training and familiarization with their new ship. Before commissioning, the new ship undergoes sea trials to identify any deficiencies needing corre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ceremonial Ship Launching
Ceremonial ship launching involves the performance of ceremonies associated with the process of transferring a vessel to the water. It is a nautical tradition in many cultures, dating back thousands of years, to accompany the physical process with ceremonies which have been observed as public celebration and a solemn blessing, usually but not always, in association with the launch itself. Ship launching imposes stresses on the ship not met during normal operation and, in addition to the size and weight of the vessel, represents a considerable engineering challenge as well as a public spectacle. The process also involves many traditions intended to invite good luck, such as christening by breaking a sacrificial bottle of champagne over the bow as the ship is named aloud and launched. Methods There are three principal methods of conveying a new ship from building site to water, only two of which are called "launching". The oldest, most familiar, and most widely used is th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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