4731st Air Defense Group
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4731st Air Defense Group
The 4731st Air Defense Group is a discontinued United States Air Force organization. Its last assignment was with the 64th Air Division of Air Defense Command (ADC) at Ernest Harmon Air Force Base, Newfoundland, Canada, where it was inactivated in 1960. The group was formed in 1957 when ADC assumed responsibility for air defense of Newfoundland from Northeast Air Command and controlled a fighter-interceptor squadron at Harmon and two squadron operating radars at dispersed locations. It was discontinued when Goose Air Defense Sector assumed responsibility for air defense of Newfoundland. History The group was formed in 1957 when Air Defense Command (ADC) assumed responsibility for air defense of Newfoundland from Northeast Air Command (NEAC). It was a tenant organization at Ernest Harmon AFB, a Strategic Air Command base, and whose 4081st Air Base Group assumed host base duties from NEAC. The group controlled both radar and fighter squadrons in Canada. Assigned the 61st Fig ...
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Air Defense Command
Aerospace Defense Command was a major command (military formation), command of the United States Air Force, responsible for continental air defense. It was activated in 1968 and disbanded in 1980. Its predecessor, Air Defense Command, was established in 1946, briefly inactivated in 1950, reactivated in 1951, and then redesignated ''Aerospace'' rather than ''Air'' in 1968. Its mission was to provide air defense of the Continental United States (CONUS). It directly controlled all active measures, and was tasked to coordinate all passive means of air defense. Air defense during World War II Continental United States air defense forces during World War II were initially under the command of the four air districts – Northeast Air District, Northwest Air District, Southeast Air District, and Southwest Air District. The air districts were established on 16 January 1941, before the Pearl Harbor attack. The four air districts also handled USAAF combat training with the Army Ground F ...
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Squadron (aviation)
A squadron in air force An air force – in the broadest sense – is the national military branch that primarily conducts aerial warfare. More specifically, it is the branch of a nation's armed services that is responsible for aerial warfare as distinct from an a ..., army aviation, or naval aviation is a Military unit, unit comprising a number of military aircraft and their aircrews, usually of the same type, typically with 12 to 24 aircraft, sometimes divided into three or four flight (military unit), flights, depending on aircraft type and air force. Land-based squadrons equipped with heavier type aircraft such as long-range bombers, cargo aircraft, or air refueling tankers have around 12 aircraft as a typical authorization, while most land-based fighter equipped units have an authorized number of 18 to 24 aircraft. In naval aviation, sea-based and land-based squadrons will typically have smaller numbers of aircraft, ranging from as low as four for early warning t ...
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Air Defense Groups Of The United States Air Force
The atmosphere of Earth is the layer of gases, known collectively as air, retained by Earth's gravity that surrounds the planet and forms its planetary atmosphere. The atmosphere of Earth protects life on Earth by creating pressure allowing for liquid water to exist on the Earth's surface, absorbing ultraviolet solar radiation, warming the surface through heat retention (greenhouse effect), and reducing temperature extremes between day and night (the diurnal temperature variation). By mole fraction (i.e., by number of molecules), dry air contains 78.08% nitrogen, 20.95% oxygen, 0.93% argon, 0.04% carbon dioxide, and small amounts of other gases. Air also contains a variable amount of water vapor, on average around 1% at sea level, and 0.4% over the entire atmosphere. Air composition, temperature, and atmospheric pressure vary with altitude. Within the atmosphere, air suitable for use in photosynthesis by terrestrial plants and breathing of terrestrial animals is found only i ...
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Four Digit Groups Of The United States Air Force
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 other h ...
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List Of United States Air Force Aircraft Control And Warning Squadrons
This Article is a list of United States Air Force aircraft control and warning squadrons active, inactive, and historical. The purpose of a ''aircraft control and warning squadron'' is to provide an airborne radar picket to detect vessels, planes, and vehicles before they enter an area of operations, as well as providing command and control in an engagement by directing aircraft strikes. Additionally they may be used to carry out surveillance, including over ground targets. Site codes Sites within the United States * DC-xx Semi-Automatic Ground Environment (SAGE) Direction Center/Combat Center. * F-xx Alaskan air defense sites. * H-0x Hawaiian air defense sites. * L-xx Original Air Defense Command (ADC) 1946 "Lashup" Radar Network of temporary sites to provide detection at designated important locations using radar sets left over from World War II. * LP-xx "Lashup" site which was incorporated into the first ADC permanent radar network in 1949. * P-xx Original 75 permanent station ...
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Aerospace Defense Command Fighter Squadrons
The second iteration of Aerospace Defense Command (ADC) was established on 21 March 1946 as a component of the United States Army Air Forces, with the mission of planning for and executing the air defense of the United States. Air Defense Command (as it was known until 1968), was headquartered at Mitchel Army Airfield, New York. Types The growth and development of the ADC air defense system grew steadily throughout the Cold War era. Interceptors used by Air/Aerospace Defense Command were: * Republic F-47D/N Thunderbolt * North American F-51D/H Mustang * Northrop F-61C Black WidowWith the end of World War II, large numbers of wartime pistoned-engined fighters were allocated for air defense mission. The long range P-47N/P-51H models, developed for the invasion of Japan, were especially well-suited for the air defense role and were used into the mid-1950s by Air National Guard units. Generally P-47s were based east of the Mississippi River, while P-51s were stationed to the we ...
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List Of USAF Aerospace Defense Command General Surveillance Radar Stations
United States general surveillance radar stations include Army and USAF stations of various US air defense networks (in reverse chronological order): *Joint Surveillance System (JSS), with radar stations controlled by joint FAA/USAF ROCCs beginning in 1980 *SAGE radar stations, for the Semi-Automatic Ground Environment network prior to the JSS (the 1st SAGE squadrons were designated in 1958) *Alaska Ring radar net, the radar stations of Alaskan Air Command *Permanent System radar stations, the Air Defense Command manual network of radar stations prior to deployment of SAGE *Lashup Radar Network radar stations, the radar stations deployed 1950-2 when the "Radar Fence" Plan was not approved * Temporary radar net, the "five-station radar net" established in 1948 *Army Radar Stations, World War II installations of the Aircraft Warning Service with radars (cf. filter centers, Ground Observer Corps stations, etc.) By usage: *RBS Express sites, temporary stations for Radar Bomb Scoring t ...
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Red Cliff AS
Red Cliff Air Station (Also known as St. Johns) (ID: N-22, C-22) was a General Surveillance Radar station. The remains of which are located north-northeast of St. John's, Newfoundland and Labrador, Canada. It was closed in 1961. History During World War II a US-manned battery of two 8-inch railway guns was located at Red Cliff, part of Fort Pepperrell in St. John's. The site was established in 1953 as a General Surveillance Radar station, funded by the United States Air Force, one of the many that would make up the Pinetree Line of Ground-Control Intercept (GCI) radar sites. Northeast Air Command stationed the 642d Aircraft Control and Warning Squadron at the station on 1 January 1953. The site was the most eastern ground radar site in North America of the USAF. It operated the following radars: * Search Radars: AN/FPS-502, AN/CPS-6B * Height Radars: AN/TPS-502, AN/CPS-6B As a GCI base, the 642d's role was to guide interceptor aircraft toward unidentified intruders ...
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642d Aircraft Control And Warning Squadron
64 or sixty-four or ''variation'', may refer to: * 64 (number) Dates * one of the years 64 BC, AD 64, 1864, 1964, 2064, etc. * June 4th (6/4) ** the date of the 1989 Tiananmen Square protests and massacre * April 6th (6/4) * April 6 AD (6/4) * June 4 AD (6/4) Places * Highway 64, see list of highways numbered 64 ** Interstate 64, a national route in the United States * +64, country code dialing code of New Zealand; see Telephone numbers in New Zealand * 64 Angelina (asteroid 64), a main-belt asteroid Other uses * Nintendo 64, the third home console by Nintendo, released in 1996 * Commodore 64 * 64-bit computing * "64" (song), a 2011 song by hip hop band Odd Future * ''Sixty Four'' (album), a 2004 album recorded in 1964 by Donovan * Sixty-four (ship), a type of sailing warship * A /64 Classless Inter-Domain Routing Classless Inter-Domain Routing (CIDR ) is a method for allocating IP addresses and for IP routing. The Internet Engineering Task Force introduced CIDR in 1993 to ...
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Stephenville AS
Stephenville may refer to: * Stephenville, Newfoundland and Labrador, Canada * Stephenville, Edison, New Jersey, United States * Stephenville, Mississippi, United States * Stephenville, Texas, United States See also * Stephenville Crossing * Stephenville High School * Stephenville International Airport Stephenville Airport is an airport located south southeast of Stephenville, Newfoundland and Labrador, Canada. It was built by the United States Air Force and operated as Ernest Harmon Air Force Base from 1941 to 1966. The airport serves not o ...
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640th Aircraft Control And Warning Squadron
64 or sixty-four or ''variation'', may refer to: * 64 (number) Dates * one of the years 64 BC, AD 64, 1864, 1964, 2064, etc. * June 4th (6/4) ** the date of the 1989 Tiananmen Square protests and massacre * April 6th (6/4) * April 6 AD (6/4) * June 4 AD (6/4) Places * Highway 64, see list of highways numbered 64 ** Interstate 64, a national route in the United States * +64, country code dialing code of New Zealand; see Telephone numbers in New Zealand * 64 Angelina (asteroid 64), a main-belt asteroid Other uses * Nintendo 64, the third home console by Nintendo, released in 1996 * Commodore 64 * 64-bit computing * 64 (song), "64" (song), a 2011 song by hip hop band Odd Future * ''Sixty Four'' (album), a 2004 album recorded in 1964 by Donovan * Sixty-four (ship), a type of sailing warship * A /64 Classless Inter-Domain Routing block See also

* * {{number disambiguation ...
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F-102 Delta Dagger
The Convair F-102 Delta Dagger was an American interceptor aircraft designed and manufactured by Convair. Built as part of the backbone of the United States Air Force's air defenses in the late 1950s, it entered service in 1956. Its main purpose was to intercept invading Soviet strategic bomber fleets (primarily the Tupolev Tu-95) during the Cold War. A total of 1,000 F-102s were built. A member of the Century Series, the F-102 was the USAF's first operational supersonic interceptor and delta-wing fighter. It used an internal weapons bay to carry both guided missiles and rockets. As originally designed, it could not achieve Mach 1 supersonic flight until redesigned with area ruling. The F-102 replaced subsonic fighter types such as the Northrop F-89 Scorpion, and by the 1960s, it saw limited service in the Vietnam War in bomber escort and ground-attack roles. It was supplemented by McDonnell F-101 Voodoos and, later, by McDonnell Douglas F-4 Phantom IIs. Many of the F- ...
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