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IV Bomber Command
The IV Bomber Command is a disbanded United States Air Force headquarters. It was established in September 1941, shortly before the attack on Pearl Harbor to command bomber units assigned to 4th Air Force. Following the entry of the United States into World War II, it flew patrols off the Pacific coast. However, its main efforts soon began organizing and training bomber units and aircrews. It was disbanded at San Francisco, California on 31 March 1944. History Background and organization GHQ Air Force (GHQ, AF) had been established with two major combat functions, to maintain a striking force against long range targets, and the air defense of the United States. In the spring of 1941, GHQ, AF reorganized its Southwest Air District as 4th Air Force. To carry out its mission of training and maintaining a strike force, 4th Air Force organized a provisional Bomber Command, 4th Air Force at March Field by April 1941. In September, the provisional command was replaced by 4th Bombe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
19th Bombardment Group
19 (nineteen) is the natural number following 18 and preceding 20. It is a prime number. Mathematics 19 is the eighth prime number, and forms a sexy prime with 13, a twin prime with 17, and a cousin prime with 23. It is the third full reptend prime, the fifth central trinomial coefficient, and the seventh Mersenne prime exponent. It is also the second Keith number, and more specifically the first Keith prime. * 19 is the maximum number of fourth powers needed to sum up to any natural number, and in the context of Waring's problem, 19 is the fourth value of g(k). * The sum of the squares of the first 19 primes is divisible by 19. *19 is the sixth Heegner number. 67 and 163, respectively the 19th and 38th prime numbers, are the two largest Heegner numbers, of nine total. * 19 is the third centered triangular number as well as the third centered hexagonal number. : The 19th triangular number is 190, equivalently the sum of the first 19 non-zero integers, that is also ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Western Sea Frontier
Sea Frontiers were several, now disestablished, commands of the United States Navy as areas of defense against enemy vessels, especially submarines, along the U.S. coasts. They existed from 1 July 1941 until in some cases the 1970s. Sea Frontiers generally started at the shore of the United States and extended outwards into the sea for a nominal distance of two hundred miles. As early as 1927 the Navy's plans for the coastal defense of the United States and its Territories and possessions provided for the establishment of Naval Coastal Frontiers that would be larger operational commands than the individual Naval Districts.HyperWarFederal Records of World War II Volume II Military Records Part Four, 1083 On 1 July 1941, the Chief of Naval Operations formally established several Naval Coastal Frontiers; on 6 February 1942, these were renamed Sea Frontiers. Each Frontier was a geographic area, usually comprising a number of Naval Districts but including in addition the outer shipping ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
30th Bombardment Group
030 may refer to: * Motorola 68030 * BR-030 * Geographical telephone calling prefixes ** Greater Accra area code, Ghana ** Utrecht, Netherlands ** Berlin, Germany ** Bar Municipality and Ulcinj Municipality of Montenegro ** Province of Brescia The Province of Brescia ( it, provincia di Brescia; Brescian: ) is a Province in the Lombardy administrative region of northern Italy. It has a population of some 1,265,964 (as of January 2019) and its capital is the city of Brescia. With an ar ..., Italy * ''030'' (magazine), from Berlin {{numberdis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
4th Interceptor Command , or The Fourth of July
{{Disambiguation ...
Fourth or the fourth may refer to: * the ordinal form of the number 4 * ''Fourth'' (album), by Soft Machine, 1971 * Fourth (angle), an ancient astronomical subdivision * Fourth (music), a musical interval * ''The Fourth'' (1972 film), a Soviet drama See also * * * 1/4 (other) * 4 (other) * The fourth part of the world (other) * Forth (other) * Quarter (other) * Independence Day (United States) Independence Day (colloquially the Fourth of July) is a federal holiday in the United States commemorating the Declaration of Independence, which was ratified by the Second Continental Congress on July 4, 1776, establishing the United States ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
14th Pursuit Group
The 14th Operations Group is the flying component of the 14th Flying Training Wing, assigned to the United States Air Force's Air Education and Training Command. The group is stationed at Columbus Air Force Base, Mississippi. The group was first activated in 1941 as the 14th Pursuit Group at Hamilton Field, California. For a short time following the Attack on Pearl Harbor it flew patrols along the Pacific coast. It moved to the United Kingdom as the 14th Fighter Group in the summer of 1942 and was the first fighter unit to ferry its own aircraft across the Atlantic. After combat training with the Royal Air Force, the group moved to the Mediterranean Theater of Operations following Operation Torch, the North Africa invasion. It continued in combat until V-E Day, earning a Distinguished Unit Citation for defending bombers attacking a target in Austria in 1944. It was inactivated in Italy in September 1945. The 14th was again activated at Dow Field, Maine in 1946 as part o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Roman Numeral
Roman numerals are a numeral system that originated in ancient Rome and remained the usual way of writing numbers throughout Europe well into the Late Middle Ages. Numbers are written with combinations of letters from the Latin alphabet, each letter with a fixed integer value, modern style uses only these seven: The use of Roman numerals continued long after the decline of the Roman Empire. From the 14th century on, Roman numerals began to be replaced by Arabic numerals; however, this process was gradual, and the use of Roman numerals persists in some applications to this day. One place they are often seen is on clock faces. For instance, on the clock of Big Ben (designed in 1852), the hours from 1 to 12 are written as: The notations and can be read as "one less than five" (4) and "one less than ten" (9), although there is a tradition favouring representation of "4" as "" on Roman numeral clocks. Other common uses include year numbers on monuments and buildings and c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arabic Number
Arabic numerals are the ten numerical digits: , , , , , , , , and . They are the most commonly used symbols to write decimal numbers. They are also used for writing numbers in other systems such as octal, and for writing identifiers such as computer symbols, trademarks, or license plates. The term often implies a decimal number, in particular when contrasted with Roman numerals. They are also called Western Arabic numerals, Ghubār numerals, Hindu-Arabic numerals, Western digits, Latin digits, or European digits. The ''Oxford English Dictionary'' differentiates them with the fully capitalized ''Arabic Numerals'' to refer to the Eastern digits. The term numbers or numerals or digits often implies only these symbols, however this can only be inferred from context. It was in the Algerian city of Béjaïa that the Italian scholar Fibonacci first encountered the numerals; his work was crucial in making them known throughout Europe. European trade, books, and colonialism helped po ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Table Of Organization
A table of organization and equipment (TOE or TO&E) is the specified organization, staffing, and equipment of units. Also used in acronyms as 'T/O' and 'T/E'. It also provides information on the mission and capabilities of a unit as well as the unit's current status. A general TOE is applicable to a type of unit (for instance, an infantry battalion) rather than a specific unit (the 2nd Battalion, 4th Infantry Regiment). Sometimes, all units of the same branch (such as Infantry) follow the same structural guidelines; much more often, there are a wide variety of TOEs to suit specific circumstances (Modified Tables of Organization and Equipment (MTOEs), in the United States Army, for example). Soviet Union and Russia In the Soviet and the Russian Armed Forces the term used for TO&E since the 1930s is ''"Shtatnoe raspisanie"'' (''Штатное расписание'', literally translated as Shtat Prescription). It originates from the term ''"Shtat"'' (''штат'') which is used p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fighter Aircraft
Fighter aircraft are fixed-wing military aircraft designed primarily for air-to-air combat. In military conflict, the role of fighter aircraft is to establish air superiority of the battlespace. Domination of the airspace above a battlefield permits bombers and attack aircraft to engage in tactical and strategic bombing of enemy targets. The key performance features of a fighter include not only its firepower but also its high speed and maneuverability relative to the target aircraft. The success or failure of a combatant's efforts to gain air superiority hinges on several factors including the skill of its pilots, the tactical soundness of its doctrine for deploying its fighters, and the numbers and performance of those fighters. Many modern fighter aircraft also have secondary capabilities such as ground attack and some types, such as fighter-bombers, are designed from the outset for dual roles. Other fighter designs are highly specialized while still filling the ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Second Air Force
The Second Air Force (2 AF; ''2d Air Force'' in 1942) is a USAF numbered air force responsible for conducting basic military and technical training for Air Force enlisted members and non-flying officers. In World War II the CONUS unit defended the Northwestern United States and Upper Midwest, Upper Great Plains regions and during the Cold War, was Strategic Air Command unit with strategic bombers and missiles. Elements of Second Air Force engaged in combat operations during the Korean War; Vietnam War, as well as Operation Desert Storm. History The Northwest Air District of the GHQ Air Force was established on 19 October 1940; activated on 18 December 1940 at McChord Field, and then re-designated as 2d Air Force on 26 March 1941. 5th Bombardment Wing (World War II), 5th Bombardment Wing was assigned to Second Air Force up until 5 September 1941. 2nd Air Force On 11 December 1941, four days after the Pearl Harbor attack, 2d Air Force was placed under Western Defense Command. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heavy Bomber
Heavy bombers are bomber aircraft capable of delivering the largest payload of air-to-ground weaponry (usually bombs) and longest range (takeoff to landing) of their era. Archetypal heavy bombers have therefore usually been among the largest and most powerful military aircraft at any point in time. In the second half of the 20th century, heavy bombers were largely superseded by strategic bombers, which were often smaller in size, but had much longer ranges and were capable of delivering nuclear bombs. Because of advances in aircraft design and engineering — especially in powerplants and aerodynamics — the size of payloads carried by heavy bombers has increased at rates greater than increases in the size of their airframes. The largest bombers of World War I, the four engine aircraft built by the Sikorsky company in the Soviet Union, could carry a payload of up to of bombs. By the middle of World War II even a single-engine fighter-bomber could carry a bomb load, an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
