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USS YP-346
USS ''YP-346'' was a yard patrol boat in the U.S. Navy during World War II. The vessel began its career as the fishing vessel ''Prospect'' in 1938. Seized by the U.S. Navy in 1941 after the Attack on Pearl Harbor, it ferried supplies throughout the Pacific theater and was involved in the Guadalcanal campaign. The ship was destroyed by the Japanese light cruiser ''Sendai'' after its convoy was intercepted while returning to Tulagi harbor. Description After the conversion to a yard patrol boat, ''YP-346'' measured and . It had a length of , a beam of , and a draft of . It had two diesel engines which spun two propellers with a combined power of , which gave it a maximum speed of . It was armed with three 20 mm antiaircraft guns and two .50-caliber machine guns. History ''Prospect'' The ship was built as ''Prospect'' in 1938 by Campbell Industries in San Diego for the Star & Crescent Boat Company. It was given the identification code ON 237063 and began operation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Diego
San Diego ( , ; ) is a city on the Pacific Ocean coast of Southern California located immediately adjacent to the Mexico–United States border. With a 2020 population of 1,386,932, it is the List of United States cities by population, eighth most populous city in the United States and the county seat, seat of San Diego County, the List of the most populous counties in the United States, fifth most populous county in the United States, with 3,338,330 estimated residents as of 2019. The city is known for its mild year-round climate, natural deep-water harbor, extensive beaches and parks, long association with the United States Navy, and recent emergence as a healthcare and biotechnology development center. San Diego is the List of municipalities in California, second largest city in the U.S. state, state of California, after Los Angeles. Historically home to the Kumeyaay people, San Diego is frequently referred to as the "Birthplace of California", as it was the first site vi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diesel Engine
The diesel engine, named after Rudolf Diesel, is an internal combustion engine in which ignition of the fuel is caused by the elevated temperature of the air in the cylinder due to mechanical compression; thus, the diesel engine is a so-called compression-ignition engine (CI engine). This contrasts with engines using spark plug-ignition of the air-fuel mixture, such as a petrol engine (gasoline engine) or a gas engine (using a gaseous fuel like natural gas or liquefied petroleum gas). Diesel engines work by compressing only air, or air plus residual combustion gases from the exhaust (known as exhaust gas recirculation (EGR)). Air is inducted into the chamber during the intake stroke, and compressed during the compression stroke. This increases the air temperature inside the cylinder to such a high degree that atomised diesel fuel injected into the combustion chamber ignites. With the fuel being injected into the air just before combustion, the dispersion of the fuel is une ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Malo Island
Malo (formerly known as ''St. Bartholomew'') is an island in Vanuatu off the southern coast of Vanuatu's largest island, Espiritu Santo, in Sanma Province. It has a circumference of and an area of . It is long, and wide. The highest point on the island is Mount Malo (). The climate is perhumid tropical. The average annual amount of rainfall is roughly . The island is frequently subjected to cyclones and earthquakes. Geography Like most of the islands of Vanuatu, Malo is of volcanic origin. The highest point on the island is Malo Peak, which rises to above sea level. The main products of the island are copra and cocoa. Both crops are grown on plantations. Natural history A tract, encompassing the western end of the island, has been recognised as an Important Bird Area (IBA) by BirdLife International, because it supports populations of Vanuatu megapodes, Vanuatu kingfishers, palm lorikeets, fan-tailed gerygones, and Vanuatu white-eyes. Demographics In 1979, the island had ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Naval Mine
A naval mine is a self-contained explosive device placed in water to damage or destroy surface ships or submarines. Unlike depth charges, mines are deposited and left to wait until they are triggered by the approach of, or contact with, any vessel or a particular vessel type, akin to anti-infantry vs. anti-vehicle mines. Naval mines can be used offensively, to hamper enemy shipping movements or lock vessels into a harbour; or defensively, to protect friendly vessels and create "safe" zones. Mines allow the minelaying force commander to concentrate warships or defensive assets in mine-free areas giving the adversary three choices: undertake an expensive and time-consuming minesweeping effort, accept the casualties of challenging the minefield, or use the unmined waters where the greatest concentration of enemy firepower will be encountered. Although international law requires signatory nations to declare mined areas, precise locations remain secret; and non-complying individ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canal Du Segond
Canal du Segond, also known as Canal Pekoa and in English Segond Channel, literally "Second Channel," separates the island of Aore Aore Island is an island in Sanma Province, Vanuatu. It is located opposite Luganville on Espiritu Santo and has an area of 58 km2. The estimated terrain elevation above sea level is some 89 meters. Aore's climate is humid tropical. The aver ... from the city of Luganville on main island of Espiritu Santo, Vanuatu. The channel was the location of the United States Navy's Naval Advance Base Espiritu Santo during World War II. The channel was a major anchorage for vessels during the war. References Geography of Vanuatu {{Vanuatu-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Destroyer
In naval terminology, a destroyer is a fast, manoeuvrable, long-endurance warship intended to escort larger vessels in a fleet, convoy or battle group and defend them against powerful short range attackers. They were originally developed in 1885 by Fernando Villaamil for the Spanish NavySmith, Charles Edgar: ''A short history of naval and marine engineering.'' Babcock & Wilcox, ltd. at the University Press, 1937, page 263 as a defense against torpedo boats, and by the time of the Russo-Japanese War in 1904, these "torpedo boat destroyers" (TBDs) were "large, swift, and powerfully armed torpedo boats designed to destroy other torpedo boats". Although the term "destroyer" had been used interchangeably with "TBD" and "torpedo boat destroyer" by navies since 1892, the term "torpedo boat destroyer" had been generally shortened to simply "destroyer" by nearly all navies by the First World War. Before World War II, destroyers were light vessels with little endurance for unattended o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seaplane Tender
A seaplane tender is a boat or ship that supports the operation of seaplanes. Some of these vessels, known as seaplane carriers, could not only carry seaplanes but also provided all the facilities needed for their operation; these ships are regarded by some as the first aircraft carriers and appeared just before the First World War. Terminology In maritime parlance a tender is a vessel that is used to support the operation of other vessels. In British usage, the term tender was used for small craft, with the term depot ship being used for large seagoing vessels. Flying boats and float planes even when based at home in ports and harbour had a need for small support vessels to operate.p British tenders were small craft of launch to pinnace size. These were used to ferry crews, stores and supplies between shore and the aircraft, to maintain the buoys used to mark out "taxiways" and "runways" and to keep these clear of debris to prevent foreign object damage, and in the case of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pearl Harbor
Pearl Harbor is an American lagoon harbor on the island of Oahu, Hawaii, west of Honolulu. It was often visited by the Naval fleet of the United States, before it was acquired from the Hawaiian Kingdom by the U.S. with the signing of the Reciprocity Treaty of 1875. Much of the harbor and surrounding lands are now a United States Navy deep-water naval base. It is also the headquarters of the United States Pacific Fleet. The U.S. government first obtained exclusive use of the inlet and the right to maintain a repair and coaling station for ships here in 1887. The surprise attack by the Imperial Japanese Navy on December 7, 1941, led the United States to declare war on the Empire of Japan, making the attack on Pearl Harbor the immediate cause of the United States' entry into World War II. History Pearl Harbor was originally an extensive shallow embayment called ''Wai Momi'' (meaning, “Waters of Pearl”) or ''Puuloa'' (meaning, “long hill”) by the Hawaiians. Puuloa was r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Warrant Officer (United States)
In the United States Armed Forces, the ranks of warrant officer (U.S. uniformed services pay grades, grades W‑1 to W‑5; see ''Ranks and insignia of NATO, NATO: WO1–WO5'') are rated as officers above all non-commissioned officers, Officer candidate, candidates, cadets, and Midshipman, midshipmen, but subordinate to the lowest officer grade of Second Lieutenant (United States), O‑1 (NATO: OF‑1). This application differs from the Commonwealth of Nations and other militaries, where warrant officers are the most senior of the Other ranks (UK), other ranks (NATO: OR‑8 and OR‑9), equivalent to the U.S. Armed Forces grades of E‑8 and E‑9. Warrant officers are highly skilled, single-track specialty officers. While the ranks are authorized by Congress, each branch of the Uniformed services of the United States, uniformed services selects, manages, and uses warrant officers in slightly different ways. For appointment to the rank of warrant officer one (W‑1), normally a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Navy
The United States Navy (USN) is the maritime service branch of the United States Armed Forces and one of the eight uniformed services of the United States. It is the largest and most powerful navy in the world, with the estimated tonnage of its active battle fleet alone exceeding the next 13 navies combined, including 11 allies or partner nations of the United States as of 2015. It has the highest combined battle fleet tonnage (4,635,628 tonnes as of 2019) and the world's largest aircraft carrier fleet, with eleven in service, two new carriers under construction, and five other carriers planned. With 336,978 personnel on active duty and 101,583 in the Ready Reserve, the United States Navy is the third largest of the United States military service branches in terms of personnel. It has 290 deployable combat vessels and more than 2,623 operational aircraft . The United States Navy traces its origins to the Continental Navy, which was established during the American Revo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Point Loma, San Diego
Point Loma (Spanish: ''Punta de la Loma'', meaning "Hill Point"; Kumeyaay: ''Amat Kunyily'', meaning "Black Earth") is a seaside community within the city of San Diego, California. Geographically it is a hilly peninsula that is bordered on the west and south by the Pacific Ocean, the east by the San Diego Bay and Old Town, and the north by the San Diego River. Together with the Silver Strand / Coronado peninsula, the Point Loma peninsula defines San Diego Bay and separates it from the Pacific Ocean. The term "Point Loma" is used to describe both the neighborhood and the peninsula. Point Loma has an estimated population of 47,981 (including Ocean Beach), according to the 2010 Census. The Peninsula Planning Area, which includes most of Point Loma, comprises approximately . Point Loma is historically important as the landing place of the first European expedition to come ashore in present-day California. Point Loma houses two major military bases, a national cemetery, a nati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Japanese Americans
are Americans of Japanese ancestry. Japanese Americans were among the three largest Asian American ethnic communities during the 20th century; but, according to the 2000 census, they have declined in number to constitute the sixth largest Asian American group at around 1,469,637, including those of partial ancestry. According to the 2010 census, the largest Japanese American communities were found in California with 272,528, Hawaii with 185,502, New York with 37,780, Washington with 35,008, Illinois with 17,542 and Ohio with 16,995. Southern California has the largest Japanese American population in North America and the city of Gardena holds the densest Japanese American population in the 48 contiguous states. History Immigration People from Japan began migrating to the US in significant numbers following the political, cultural, and social changes stemming from the Meiji Restoration in 1868. These early Issei immigrants came primarily from small towns and rural areas in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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