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420th (other)
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420th may refer to: *420th Air Base Group or RAF Fairford (IATA: FFD, ICAO: EGVA), Royal Air Force (RAF) station in Gloucestershire, England *420th Air Refueling Squadron, inactive United States Air Force unit *420th Bombardment Squadron, inactive United States Air Force unit *420th Engineer Brigade (United States), combat engineer brigade of the United States Army based in Bryan, Texas *420th Flight Test Flight, United States Air Force Reserve squadron based at Phoenix-Mesa Gateway Airport Arizona See also *420 (number) * 420 (other) *AD 420, the year 420 (CDXX) of the Julian calendar *420 BC __NOTOC__ Year 420 BC was a year of the pre-Julian Roman calendar. The denomination 420 BC for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
420th Air Base Group
Royal Air Force Fairford or more simply RAF Fairford is a Royal Air Force (RAF) station in Gloucestershire, England which is currently a standby airfield and therefore not in everyday use. Its most prominent use in recent years has been as an airfield for United States Air Force B-52s during the 2003 Iraq War, Operation Allied Force in 1999, and the first Gulf War in 1991. It is the US Air Force's only European airfield for heavy bombers. RAF Fairford was the only TransOceanic Abort Landing site for NASA's Space Shuttle in the UK. As well as having a sufficiently long runway for a shuttle landing (the runway is long), it also had NASA-trained fire and medical crews stationed on the airfield. The runway is rated with an unrestricted load-bearing capacity, meaning that it can support any aircraft with any type of load. RAF Fairford is also the home of the Royal International Air Tattoo (RIAT), an annual air display. RIAT is one of the largest airshows in the world, with the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
420th Air Refueling Squadron
4 (four) is a number, numeral and digit. It is the natural number following 3 and preceding 5. It is the smallest semiprime and composite number, and is considered unlucky in many East Asian cultures. In mathematics Four is the smallest composite number, its proper divisors being and . Four is the sum and product of two with itself: 2 + 2 = 4 = 2 x 2, the only number b such that a + a = b = a x a, which also makes four the smallest squared prime number p^. In Knuth's up-arrow notation, , and so forth, for any number of up arrows. By consequence, four is the only square one more than a prime number, specifically three. The sum of the first four prime numbers two + three + five + seven is the only sum of four consecutive prime numbers that yields an odd prime number, seventeen, which is the fourth super-prime. Four lies between the first proper pair of twin primes, three and five, which are the first two Fermat primes, like seventeen, which is the third. On the othe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
420th Bombardment Squadron
The 420th Bombardment Squadron was unit in the United States Army Air Forces. Its last assignment was with 382d Bombardment Group stationed at Camp Anza, California. It was inactivated on 4 January 1946 without seeing combat. History The squadron was activated in early 1942 as a B-24 Liberator reconnaissance unit. It was redesignated as a heavy bomber Operational Training Unit (OTU), later becoming a Replacement Training Unit (RTU) for deployed combat units, assigned to II Bomber Command, then to III Bomber Command in 1943. The squadron was inactivated in April 1944 when heavy bomber training ended. The 420th Bombardment Squadron was redesignated as a B-29 Superfortress very heavy bombardment Squadron in August 1944. The squadron was trained under the Second Air Force. Training was considerably delayed due to equipment shortages. They received B-29 aircraft in Kansas in late spring 1945. The ground echelon deployed to Northern Mariana Islands by ship in early August 1945; air e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
420th Engineer Brigade (United States)
The 420th Engineer Brigade (Corps) is a combat engineer brigade of the United States Army based in Bryan, Texas. It is a United States Army Reserve formation and is subordinate to III Corps. Background The brigade is a Major Subordinate Command of the 416th Engineer Command in Darien, IL. The Commander, 420th Engineer Brigade commands and controls all Army Reserve engineer units in the states of Texas, Arkansas, Louisiana, Oklahoma, Missouri, Colorado, and New Mexico consisting of approximately 4,500 reserve soldiers. The units of the 420th Engineer Brigade have served in Operation Joint Forge in Bosnia, Operation Joint Endeavor in Kosovo, Operation Desert Storm, Operation Iraqi Freedom, and Operation Inherent Resolve in Iraq, Operation Enduring Freedom and Operation Resolute Support in Afghanistan. They have also participated in Exercises Bright Star in Egypt, Fuerte Caminos in Honduras and Belize, and Nuevas Horizontes in El Salvador, Panama, and Guatemala. Organizati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
420th Flight Test Flight
The 420th Flight Test Squadron is an active United States Air Force squadron. The squadron was first activated as the 420th Night Fighter Squadron, one of the first dedicated night fighter operational training squadrons of the Air Force. It trained replacement night fighter pilots who were then deployed overseas into combat until its inactivation in March 1944 due to a re-alignment of training unit designations.Pape, Campbell & Campbell, It was reactivated as the 420th Air Refueling Squadron under Tactical Air Command in 1954 and moved to England, where it served under the United States Air Forces Europe. It was inactivated when Strategic Air Command assumed the role of single manager for USAF air refueling. In 1985 the night fighter and refueling squadrons were consolidated into a single unit. The 6520th Test Squadron was organized in 1989 by Air Force Systems Command. In 1992, as the USAF eliminated Major Command controlled (MAJCON) units, the 6520th was consolidate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
420 (number)
420 (four hundred ndtwenty) is the natural number following 419 and preceding 421. In mathematics 420 is: *the sum of four consecutive primes (101 + 103 + 107 + 109). *the sum of the first 20 positive even numbers. *a zero of the Mertens function and is sparsely totient. *a pronic number. *the smallest number divisible by the numbers 1 to 7, and as a consequence of that it is a Harshad number in every base from 2 to 10 except base 5. *a 141- gonal number. *a balanced number. In other fields *420 is a slang term that refers to the consumption of cannabis. April 20th is commonly celebrated as a holiday dedicated to the drug, due to the numerical form of the day being 4/20. *420 is the country calling code for Czech Republic The Czech Republic, or simply Czechia, is a landlocked country in Central Europe. Historically known as Bohemia, it is bordered by Austria to the south, Germany to the west, Poland to the northeast, and Slovakia to the southeast. Th .... Ref ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
420 (other)
420 may refer to: *420 (number) *420 (cannabis culture), informal reference to cannabis use and celebrations on April 20 **California Senate Bill 420 or the Medical Marijuana Program Act *AD 420, a year in the 5th century of the Julian calendar *420 BC, a year *April 20 *420 (dinghy), a class of double-handed racing sailboats * "420" (''Family Guy''), an episode of ''Family Guy'' *420 Bertholda, a main-belt asteroid *4-2-0, a classification of steam locomotives * "4-2-0" (song), a song by Kottonmouth Kings from ''Rollin' Stoned'' *"4:20", a song by Six Feet Under on the 1997 album ''Warpath'' *Section 420 of the Indian Penal Code, a law against cheating and dishonesty * +420, calling code of Czech Republic See also *420th (other) *List of highways numbered 420 Route 420 or Highway 420 may refer to: Australia * Bass Highway (Victoria) * South Gippsland Freeway * South Gippsland Highway * Bass Highway * Phillip Island Road Canada * Ontario Highway 420 *New Brunswick Route ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AD 420
__NOTOC__ Year 420 ( CDXX) was a leap year starting on Thursday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Theodosius and Constantius (or, less frequently, year 1173 ''Ab urbe condita''). The denomination 420 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Europe * The legendary Pharamond is said to have led the Franks across the Rhine. Persia * Yazdegerd I dies after a 21-year reign, and is succeeded by his son Bahram V, who becomes head of the Persian Empire. * Abdas, bishop of Susa, is accused of burning down one of the fire temples of Ahura Mazda, and after refusing to rebuild it, he is executed, under orders of Shah Yazdegerd I. Asia * July 10 – The Jin Dynasty ends in China. Liu Yu (Emperor Wu of Liu Song) becomes the first ruler of the Liu Song D ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
