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Naval Auxiliary Landing Field San Clemente Island
Naval Auxiliary Landing Field (NALF) San Clemente Island , also known as Frederick Sherman Field, is a military airport located on San Clemente Island, in Los Angeles County, California, United States. It has been owned by the United States Navy since 1937. San Clemente Island is the southernmost Channel Island, covering 57 square miles (150 km2). The island is approximately long and is across at its widest point. It lies south of Long Beach and west of San Diego. Operations One of the primary military functions of San Clemente has been to support research and development of many of the Navy's weapon systems. In 1939, the Navy developed the first Landing Craft, Vehicle and Personnel (LCVP) "Higgins Boat" at SCI. This was the beginning of the Naval Amphibious Force, which was one of the key factors in the outcome of World War II. Today SCI's primary function is twofold: to support tactical training of the Pacific Fleet, and to continue as a key research and develo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Naval Base Coronado
Naval Base Coronado (NBC) is a consolidated Navy installation encompassing eight military facilities stretching from San Clemente Island, located seventy miles west of San Diego, California, in Los Angeles County, California, to the Mountain Warfare Training Camp Michael Monsoor and Camp Morena, located sixty miles east of San Diego. Organization In 1997, Naval Base Coronado was created, incorporating eight separate Naval installations under one Commanding Officer. Those facilities include: Naval Air Station North Island (NASNI); Naval Amphibious Base Coronado (NAB); Naval Outlying Landing Field Imperial Beach (NOLFIB); Naval Auxiliary Landing Field San Clemente Island (NALFSCI); Silver Strand Training Complex (SSTC), formerly known as the Naval Radio Receiving Facility; Mountain Warfare Training Camp Michael Monsoor (MWTCMM); Camp Morena; and the Remote Training Site, Warner Springs (RTSWS). These eight facilities encompass more than 57,000 acres (230 km2) and make NBC the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Long Beach, California
Long Beach is a city in Los Angeles County, California. It is the 42nd-most populous city in the United States, with a population of 466,742 as of 2020. A charter city, Long Beach is the seventh-most populous city in California. Incorporated in 1897, Long Beach lies in Southern California in the southern part of Los Angeles County. Long Beach is approximately south of downtown Los Angeles, and is part of the Gateway Cities region. The Port of Long Beach is the second busiest container port in the United States and is among the world's largest shipping ports. The city is over an oilfield with minor wells both directly beneath the city as well as offshore. The city is known for its waterfront attractions, including the permanently docked and the Aquarium of the Pacific. Long Beach also hosts the Grand Prix of Long Beach, an IndyCar race and the Long Beach Pride Festival and Parade. California State University, Long Beach, one of the largest universities in California b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electricity
Electricity is the set of physical phenomena associated with the presence and motion of matter that has a property of electric charge. Electricity is related to magnetism, both being part of the phenomenon of electromagnetism, as described by Maxwell's equations. Various common phenomena are related to electricity, including lightning, static electricity, electric heating, electric discharges and many others. The presence of an electric charge, which can be either positive or negative, produces an electric field. The movement of electric charges is an electric current and produces a magnetic field. When a charge is placed in a location with a non-zero electric field, a force will act on it. The magnitude of this force is given by Coulomb's law. If the charge moves, the electric field would be doing work on the electric charge. Thus we can speak of electric potential at a certain point in space, which is equal to the work done by an external agent in carrying a unit of p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pound (mass)
The pound or pound-mass is a unit of mass used in British imperial and United States customary systems of measurement. Various definitions have been used; the most common today is the international avoirdupois pound, which is legally defined as exactly , and which is divided into 16 avoirdupois ounces. The international standard symbol for the avoirdupois pound is lb; an alternative symbol is lbm (for most pound definitions), # ( chiefly in the U.S.), and or ″̶ (specifically for the apothecaries' pound). The unit is descended from the Roman (hence the abbreviation "lb"). The English word ''pound'' is cognate with, among others, German , Dutch , and Swedish . These units are historic and are no longer used (replaced by the metric system). Usage of the unqualified term ''pound'' reflects the historical conflation of mass and weight. This accounts for the modern distinguishing terms ''pound-mass'' and '' pound-force''. Etymology The word 'pound' and its cognates ultim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
US Gallon
The gallon is a unit of volume in imperial units and United States customary units. Three different versions are in current use: *the imperial gallon (imp gal), defined as , which is or was used in the United Kingdom, Ireland, Canada, Australia, New Zealand, and some Caribbean countries; *the US gallon (US gal), defined as , (231 cubic inches) which is used in the US and some Latin American and Caribbean countries; and *the US dry gallon ("usdrygal"), defined as US bushel (exactly ). There are two pints in a quart and four quarts in a gallon. Different sizes of pints account for the different sizes of the imperial and US gallons. The IEEE standard symbol for both US (liquid) and imperial gallon is gal, not to be confused with the gal (symbol: Gal), a CGS unit of acceleration. Definitions The gallon currently has one definition in the imperial system, and two definitions (liquid and dry) in the US customary system. Historically, there were many definitions and redefiniti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diesel Fuel
Diesel fuel , also called diesel oil, is any liquid fuel specifically designed for use in a diesel engine, a type of internal combustion engine in which fuel ignition takes place without a spark as a result of compression of the inlet air and then injection of fuel. Therefore, diesel fuel needs good compression ignition characteristics. The most common type of diesel fuel is a specific fractional distillate of petroleum fuel oil, but alternatives that are not derived from petroleum, such as biodiesel, biomass to liquid (BTL) or gas to liquid (GTL) diesel are increasingly being developed and adopted. To distinguish these types, petroleum-derived diesel is sometimes called petrodiesel in some academic circles. In many countries, diesel fuel is standardised. For example, in the European Union, the standard for diesel fuel is EN 590. Diesel fuel has many colloquial names; most commonly, it is simply referred to as ''diesel''. In the United Kingdom, diesel fuel for on-road use is c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Navy Cross (United States)
The Navy Cross is the United States Navy and United States Marine Corps' second-highest military decoration awarded for sailors and marines who distinguish themselves for extraordinary heroism in combat with an armed enemy force. The medal is equivalent to the Army's Distinguished Service Cross, the Air Force and Space Force's Air Force Cross, and the Coast Guard Cross. The Navy Cross is bestowed by the Secretary of the Navy and may also be awarded to members of the other armed services, and to foreign military personnel while serving with the U.S. naval services. The Navy Cross was established by Act of Congress ( Public Law 65-253) and approved on February 4, 1919. History The Navy Cross was instituted in part due to the entrance of the United States into World War I. Many European nations had the custom of decorating heroes from other nations, but the Medal of Honor was the sole U.S. award for valor at the time. The Army instituted the Distinguished Service Cross and Disti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electronic Warfare
Electronic warfare (EW) is any action involving the use of the electromagnetic spectrum (EM spectrum) or directed energy to control the spectrum, attack an enemy, or impede enemy assaults. The purpose of electronic warfare is to deny the opponent the advantage of—and ensure friendly unimpeded access to—the EM spectrum. EW can be applied from air, sea, land, and/or space by crewed and uncrewed systems, and can target communication, radar, or other military and civilian assets. The electromagnetic environment Military operations are executed in an information environment increasingly complicated by the electromagnetic spectrum. The electromagnetic spectrum portion of the information environment is referred to as the electromagnetic environment (EME). The recognized need for military forces to have unimpeded access to and use of the electromagnetic environment creates vulnerabilities and opportunities for electronic warfare in support of military operations. Within the informat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antisubmarine
An anti-submarine weapon (ASW) is any one of a number of devices that are intended to act against a submarine and its crew, to destroy (sink) the vessel or reduce its capability as a weapon of war. In its simplest sense, an anti-submarine weapon is usually a projectile, missile or bomb that is optimized to destroy submarines. History Before World War I Prior to about 1890, naval weapons were only used against surface shipping. With the rise of the military submarine after this time, countermeasures were considered for use against them. The first submarine installation of torpedo tubes was in 1885 and the first ship was sunk by a submarine-launched torpedo in 1887. There were only two ways of countering the military submarine initially: ramming them or sinking them with gunfire. However, once they were submerged, they were largely immune until they had to surface again. By the start of the First World War there were nearly 300 submarines in service with another 80 in production ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Air Defense
Anti-aircraft warfare, counter-air or air defence forces is the battlespace response to aerial warfare, defined by NATO as "all measures designed to nullify or reduce the effectiveness of hostile air action".AAP-6 It includes surface based, subsurface ( submarine launched), and air-based weapon systems, associated sensor systems, command and control arrangements, and passive measures (e.g. barrage balloons). It may be used to protect naval, ground, and air forces in any location. However, for most countries, the main effort has tended to be homeland defence. NATO refers to airborne air defence as counter-air and naval air defence as anti-aircraft warfare. Missile defence is an extension of air defence, as are initiatives to adapt air defence to the task of intercepting any projectile in flight. In some countries, such as Britain and Germany during the Second World War, the Soviet Union, and modern NATO and the United States, ground-based air defence and air defence aircraf ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bombardment
A bombardment is an attack by artillery fire or by dropping bombs from aircraft on fortifications, combatants, or towns and buildings. Prior to World War I, the term was only applied to the bombardment of defenseless or undefended objects, houses, public buildings, etc. It was only loosely employed to describe artillery attacks upon forts or fortified positions in preparation for assaults by infantry. Since then, it has come to mean any mass attack delivered by artillery or short-range tactical missiles, and later, aerial bombardment delivered by aircraft or long-range missiles. History In its old strict sense, the term was only applied to the bombardment of defenseless or undefended objects, houses, public buildings, etc., by an assailant with the object of disheartening his opponent, and specially to force the civilian population and authorities of a besieged place to persuade their military commander to capitulate before the actual defenses of the place have been reduce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Expeditionary Warfare
Expeditionary warfare is a military invasion of a foreign territory, especially away from established bases. Expeditionary forces were in part the antecedent of the modern concept of rapid deployment forces. Traditionally, expeditionary forces were essentially self-sustaining with an organic logistics capability and with a full array of supporting arms. In the ancient world The earliest examples of expeditionary warfare come from the Sea Peoples, a term used for a confederation of seafaring raiders of the second millennium BC who sailed into the eastern shores of the Mediterranean, caused political unrest, and attempted to enter or control Egyptian territory during the late 19th dynasty, and especially during Year 8 of Ramesses III of the 20th Dynasty. The raiding tactics were expanded into the more complex expeditionary warfare operations by Alexander the Great who used naval vessels for both troop transporting and logistics in his campaigns against the Persian Empire. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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