|
Ro-100 Class Submarine
The was a group of medium-sized coastal submarines built for the Imperial Japanese Navy (IJN) during World War II. The IJN official designation for this class was or . They are also known as Type KS submarine. The type name was shortened to .The read as "Shō" and the read as "Sen-Shō", but the read as "Ko-gata" and the read as "Sen-Shō-gata" in Japanese. Design and description In 1940, the IJN designed a point-defence coastal submarine because they wanted to save their larger submarines for fleet battles. The ''Ro-100'' class was derived from the preceding ''Kaichū'' type. They displaced surfaced and submerged. The submarines were long, had a beam of and a draft of . They had a double hull and a diving depth of .Carpenter & Dorr, p. 123 For surface running, the boats were powered by two diesel engines, each driving one propeller shaft. When submerged each propeller was driven by a electric motor. They could reach on the surface and underwater. On the surface, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kure Naval Arsenal
was one of four principal naval shipyards owned and operated by the Imperial Japanese Navy. History The Kure Naval District was established at Kure, Hiroshima in 1889, as the second of the naval districts responsible for the defense of the Japanese home islands. Along with the establishment of the navy base, a ship repair facility was also constructed, initially by moving the equipment from the Onohama shipyards near Kobe. Construction was supervised by the French engineer Louis-Émile Bertin. The first warship constructed at Kure, '' Miyako'', was launched in 1897. The "Kure Shipyards" were officially renamed the "Kure Naval Arsenal" in 1903. Kure developed into one of the largest shipbuilding facilities in the Empire of Japan, capable of working with the largest vessels. The Arsenal included a major steel works (built with British assistance), and also facilities for producing naval artillery and projectiles. The battleships ''Yamato'' and '' Nagato'' were designed and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Double Hull
A double hull is a ship hull design and construction method where the bottom and sides of the ship have two complete layers of watertight hull surface: one outer layer forming the normal hull of the ship, and a second inner hull which is some distance inboard, typically by a few feet, which forms a redundant barrier to seawater in case the outer hull is damaged and leaks. The space between the two hulls is sometimes used for storage of ballast water. Double hulls are a more extensive safety measure than double bottoms, which have two hull layers only in the bottom of the ship but not the sides. In low-energy collisions, double hulls can prevent flooding beyond the penetrated compartment. In high-energy collisions, however, the distance to the inner hull is not sufficient and the inner compartment is penetrated as well. Double hulls or double bottoms have been required in all passenger ships for decades as part of the Safety Of Life At Sea or SOLAS Convention. Uses Double hul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Luzon Strait
The Luzon Strait (Tagalog: ''Kipot ng Luzon'', ) is the strait between Luzon and Taiwan. The strait thereby connects the Philippine Sea to the South China Sea in the western Pacific Ocean. This body of water is an important strait for shipping and communications. Many ships from the Americas use this route to go to important East Asian ports. Many submarine communications cables pass through the Luzon Strait. These cables provide important data and telephony services to mainland China, Hong Kong, Taiwan, Japan and South Korea. Description The Luzon Strait is approximately wide containing a number of islands belonging to the Philippines that are grouped into two: the islands comprising the province of Batanes and the Babuyan Islands, which are part of the province of Cagayan. The strait is divided into a number of smaller channels. The Babuyan Channel separates Luzon from the Babuyan Islands, which is separated from Batanes by the . Batanes is separated from Taiwan by t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bay Of Bengal
The Bay of Bengal is the northeastern part of the Indian Ocean. Geographically it is positioned between the Indian subcontinent and the Mainland Southeast Asia, Indochinese peninsula, located below the Bengal region. Many South Asian and Southeast Asian Countries of the Bay of Bengal, countries are dependent on the Bay of Bengal. Geopolitically, the bay is bounded on the west and northwest by India, on the north by Bangladesh, and on the east by Myanmar and the Andaman and Nicobar Islands of India. Its southern limit is a line between Sangaman Kanda, Sri Lanka, and the northwesternmost point of Sumatra, Indonesia. Cox's Bazar Beach, Cox's Bazar, the longest sea beach in the world and Sundarbans, the largest mangrove forest and the natural habitat of the Bengal tiger, are located along the bay. The Bay of Bengal occupies an area of . A number of large rivers flow into the Bay of Bengal: the Ganges–Hooghly River, Hooghly, the Padma River, Padma, the Brahmaputra River, Brahmaputr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Okinawa Island
, officially , is the largest of the Okinawa Islands and the Ryukyu Islands, Ryukyu (''Nansei'') Islands of Japan in the Kyushu region. It is the smallest and least populated of the five Japanese archipelago, main islands of Japan. The island is approximately long, an average wide, and has an area of . It is roughly south of the main island of Kyushu and the rest of Japan. It is northeast of Taiwan. The total population of Okinawa Island was 1,384,762 in 2009. The greater Naha area has roughly 800,000 residents, while the city itself has about 320,000 people. Naha is the seat of Okinawa Prefecture on the southwestern part of Okinawa Island. Okinawa has a humid subtropical climate. Okinawa has been a strategic location for the United States Armed Forces since the Battle of Okinawa and the end of World War II. The island was formally controlled by the United States Civil Administration of the Ryukyu Islands until 1972, with around 26,000 U.S. military personnel stationed on Oki ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kolombangara
Kolombangara (sometimes spelled ''Kulambangara'') is an island in the New Georgia Islands group of the nation state of Solomon Islands in the southwestern Pacific Ocean. The name is from a local language, a rough translation of its meaning is "Water Lord" with approximately 80 rivers and streams running down its flanks. Geography Almost perfectly round in shape and about across, the island is a stratovolcano that reaches an elevation of at Mount Veve. The island forms part of the southern boundary of the New Georgia Sound; to the northwest the Vella Gulf separates it from Vella Lavella and Gizo, while to the southeast New Georgia lies across the Kula Gulf. West-southwest of Kolombangara is Ghizo Island, upon which the Western provincial capital Gizo is located. The island is heavily forested, with few inhabitants. There are two notable settlements, Ringgi and Mongga, the former being the larger. The most significant industry on the island is logging, principally b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Admiralty Islands
The Admiralty Islands are an archipelago group of 40 islands in the Bismarck Archipelago, to the north of New Guinea in the South Pacific Ocean. These are also sometimes called the Manus Islands, after the largest island. These rainforest-covered islands constitute Manus Province, the smallest and least-populous province of Papua New Guinea, in its Islands Region. The total area is . The province had a population of 60,485 at the 2011 Census. Many of the smaller Admiralty Islands are atolls and uninhabited. Islands The larger islands in the center of the group are Manus Island and Los Negros Island. The other larger islands are Tong Island, Pak Island, Rambutyo Island, Lou Island, and Baluan Island to the east, Mbuke Island to the south and Bipi Island to the west of Manus Island. Other islands that have been noted as significant places in the history of Manus include Ndrova Island, Pityilu Island and Ponam Island. Geography The temperature of the Admiralty Isla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Makira
The island of Makira (previously known as San Cristóbal) is the largest island of Makira-Ulawa Province in Solomon Islands. It is third most populous of the Solomon Islands after Malaita and Guadalcanal, with a population of 55,126 as of 2020. The island is located east of Guadalcanal and south of Malaita. The largest and capital city is Kirakira. History The first recorded sighting by Europeans of Makira was by the Spanish expedition of Álvaro de Mendaña in June 1568. More precisely the sighting and also landing in San Cristóbal was due to a local voyage that set out from Guadalcanal in a small boat, in the accounts the brigantine ''Santiago'', commanded by Alférez Hernando Enriquez and having Hernán Gallego as pilot. They charted it as ''San Cristóbal''.Brand, Donald D. ''The Pacific Basin: A History of its Geographical Explorations'' The American Geographical Society, New York, 1967, p.133. Education The Stuyvenberg Rural Training Centre is a rural boardi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PBY Catalina
The Consolidated Model 28, more commonly known as the PBY Catalina (U.S. Navy designation), is a flying boat and amphibious aircraft designed by Consolidated Aircraft in the 1930s and 1940s. In U.S. Army service, it was designated as the OA-10 and in Canadian service as the Canso, and it later received the NATO reporting name Mop. It was one of the most widely used seaplanes of World War II. Catalinas served with every branch of the United States Armed Forces and in the air forces and navies of many other nations. The last military PBYs served until the 1980s. As of 2021, 86 years after its first flight, the aircraft continues to fly as a waterbomber (or airtanker) in aerial firefighting operations in some parts of the world. Design and development Background The PBY was originally designed to be a patrol bomber, an aircraft with a long operational range intended to locate and attack enemy transport ships at sea to disrupt enemy supply lines. With a mind to a poten ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bougainville Island
Bougainville Island (; Tok Pisin: ''Bogenvil'') is the main island of the Autonomous Region of Bougainville, which is part of Papua New Guinea. Its land area is . The highest point is Mount Balbi, on the main island, at . The much smaller Buka Island, , lies to the north, across the wide Buka Passage, Buka Strait. Even though the strait is narrow, there is no bridge across it, but there is a regular ferry service between the key settlements on either side. The main airstrip in the north is in the town of Buka. Buka has an outcropping that is from New Ireland (island), New Ireland. Among the large islands of Papua New Guinea, New Ireland is the closest to Buka. Bougainville is the largest island in the Solomon Islands (archipelago), Solomon Islands archipelago. It was previously the main landmass in the North Solomon Islands, North Solomons, which were associated with the German Empire. Most of the islands in this archipelago (which are primarily concentrated in the southern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rapidly Naval Armaments Supplement Programme (Japan, 1941)
The was one of the armaments expansion plan of the Imperial Japanese Navy (IJN). Background In August 1941, the IJN started building warships for war. It extended to 293 vessels, 300,000 tons. Table of vessels See also *1st Naval Armaments Supplement Programme (Maru 1 Keikaku, 1931) * 2nd Naval Armaments Supplement Programme (Maru 2 Keikaku, 1934) * 3rd Naval Armaments Supplement Programme (Maru 3 Keikaku, 1937) * 4th Naval Armaments Supplement Programme (Maru 4 Keikaku, 1939) *Temporal Naval Armaments Supplement Programme (Maru Rin Keikaku, 1940) * Additional Naval Armaments Supplement Programme (Maru Tui Keikaku, 1941) * 5th Naval Armaments Supplement Programme (Maru 5 Keikaku, 1941) * 6th Naval Armaments Supplement Programme (Maru 6 Keikaku, 1942) * Modified 5th Naval Armaments Supplement Programme (Kai-Maru 5 Keikaku, 1942) * Wartime Naval Armaments Supplement Programme (Maru Sen Keikaku, 1944) References *''Rekishi Gunzō series'', Gakken (Japan) *''The Maru Special series ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Temporal Naval Armaments Supplement Programme (Japan, 1940)
The is one of the armaments expansion plan of the Imperial Japanese Navy (IJN). Background In October 1940, the IJN schemed building of the submarines and auxiliary vessels because there was a shortage of them. Table of vessels See also * 1st Naval Armaments Supplement Programme (Maru 1 Keikaku, 1931) * 2nd Naval Armaments Supplement Programme (Maru 2 Keikaku, 1934) * 3rd Naval Armaments Supplement Programme (Maru 3 Keikaku, 1937) * 4th Naval Armaments Supplement Programme (Maru 4 Keikaku, 1939) * Rapidly Naval Armaments Supplement Programme (Maru Kyū Keikaku, 1941) * Additional Naval Armaments Supplement Programme (Maru Tui Keikaku, 1941) * 5th Naval Armaments Supplement Programme (Maru 5 Keikaku, 1941) * 6th Naval Armaments Supplement Programme (Maru 6 Keikaku, 1942) * Modified 5th Naval Armaments Supplement Programme (Kai-Maru 5 Keikaku, 1942) * Wartime Naval Armaments Supplement Programme (Maru Sen Keikaku, 1944) References *''Rekishi Gunzō series'', Gakken (Japan) *''The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
