This is an accepted version of this page
32-671: Coordinates : 42°24′36.67″N 71°4′9.44″W / 42.4101861°N 71.0692889°W / 42.4101861; -71.0692889 General Electric Everett Plant [REDACTED] Built 1941 Location Everett, Massachusetts Coordinates 42°24′36.67″N 71°4′9.44″W / 42.4101861°N 71.0692889°W / 42.4101861; -71.0692889 Products General Electric CF6 General Electric CFM56 General Electric T700 General Electric F404 General Electric F101 General Electric Everett Plant , formerly known as Air Force Plant 28 ,
64-543: A prime meridian at the westernmost known land, designated the Fortunate Isles , off the coast of western Africa around the Canary or Cape Verde Islands , and measured north or south of the island of Rhodes off Asia Minor . Ptolemy credited him with the full adoption of longitude and latitude, rather than measuring latitude in terms of the length of the midsummer day. Ptolemy's 2nd-century Geography used
96-679: A little before 1300; the text was translated into Latin at Florence by Jacopo d'Angelo around 1407. In 1884, the United States hosted the International Meridian Conference , attended by representatives from twenty-five nations. Twenty-two of them agreed to adopt the longitude of the Royal Observatory in Greenwich , England as the zero-reference line. The Dominican Republic voted against
128-416: A location often facetiously called Null Island . In order to use the theoretical definitions of latitude, longitude, and height to precisely measure actual locations on the physical earth, a geodetic datum must be used. A horizonal datum is used to precisely measure latitude and longitude, while a vertical datum is used to measure elevation or altitude. Both types of datum bind a mathematical model of
160-538: A longitudinal degree is 111.3 km. At 30° a longitudinal second is 26.76 m, at Greenwich (51°28′38″N) 19.22 m, and at 60° it is 15.42 m. On the WGS 84 spheroid, the length in meters of a degree of latitude at latitude ϕ (that is, the number of meters you would have to travel along a north–south line to move 1 degree in latitude, when at latitude ϕ ), is about The returned measure of meters per degree latitude varies continuously with latitude. Similarly,
192-700: A national cartographical organization include the North American Datum , the European ED50 , and the British OSGB36 . Given a location, the datum provides the latitude ϕ {\displaystyle \phi } and longitude λ {\displaystyle \lambda } . In the United Kingdom there are three common latitude, longitude, and height systems in use. WGS 84 differs at Greenwich from
224-872: A simple translation may be sufficient. Datums may be global, meaning that they represent the whole Earth, or they may be local, meaning that they represent an ellipsoid best-fit to only a portion of the Earth. Examples of global datums include World Geodetic System (WGS 84, also known as EPSG:4326 ), the default datum used for the Global Positioning System , and the International Terrestrial Reference System and Frame (ITRF), used for estimating continental drift and crustal deformation . The distance to Earth's center can be used both for very deep positions and for positions in space. Local datums chosen by
256-503: A year, or 10 m in a century. A weather system high-pressure area can cause a sinking of 5 mm . Scandinavia is rising by 1 cm a year as a result of the melting of the ice sheets of the last ice age , but neighboring Scotland is rising by only 0.2 cm . These changes are insignificant if a local datum is used, but are statistically significant if a global datum is used. On the GRS 80 or WGS 84 spheroid at sea level at
288-586: Is where Earth's equatorial radius a {\displaystyle a} equals 6,378,137 m and tan β = b a tan ϕ {\displaystyle \textstyle {\tan \beta ={\frac {b}{a}}\tan \phi }\,\!} ; for the GRS 80 and WGS 84 spheroids, b a = 0.99664719 {\textstyle {\tfrac {b}{a}}=0.99664719} . ( β {\displaystyle \textstyle {\beta }\,\!}
320-418: Is a spherical or geodetic coordinate system for measuring and communicating positions directly on Earth as latitude and longitude . It is the simplest, oldest and most widely used of the various spatial reference systems that are in use, and forms the basis for most others. Although latitude and longitude form a coordinate tuple like a cartesian coordinate system , the geographic coordinate system
352-712: Is known as the reduced (or parametric) latitude ). Aside from rounding, this is the exact distance along a parallel of latitude; getting the distance along the shortest route will be more work, but those two distances are always within 0.6 m of each other if the two points are one degree of longitude apart. Like any series of multiple-digit numbers, latitude-longitude pairs can be challenging to communicate and remember. Therefore, alternative schemes have been developed for encoding GCS coordinates into alphanumeric strings or words: These are not distinct coordinate systems, only alternative methods for expressing latitude and longitude measurements. GE Aerospace (1960s) GE Aerospace
SECTION 10
#1732798194467384-544: Is not cartesian because the measurements are angles and are not on a planar surface. A full GCS specification, such as those listed in the EPSG and ISO 19111 standards, also includes a choice of geodetic datum (including an Earth ellipsoid ), as different datums will yield different latitude and longitude values for the same location. The invention of a geographic coordinate system is generally credited to Eratosthenes of Cyrene , who composed his now-lost Geography at
416-753: Is the angle east or west of a reference meridian to another meridian that passes through that point. All meridians are halves of great ellipses (often called great circles ), which converge at the North and South Poles. The meridian of the British Royal Observatory in Greenwich , in southeast London, England, is the international prime meridian , although some organizations—such as the French Institut national de l'information géographique et forestière —continue to use other meridians for internal purposes. The prime meridian determines
448-405: Is ultimately calculated from latitude and longitude, it is crucial that they clearly state the datum on which they are based. For example, a UTM coordinate based on WGS84 will be different than a UTM coordinate based on NAD27 for the same location. Converting coordinates from one datum to another requires a datum transformation such as a Helmert transformation , although in certain situations
480-494: The Library of Alexandria in the 3rd century BC. A century later, Hipparchus of Nicaea improved on this system by determining latitude from stellar measurements rather than solar altitude and determining longitude by timings of lunar eclipses , rather than dead reckoning . In the 1st or 2nd century, Marinus of Tyre compiled an extensive gazetteer and mathematically plotted world map using coordinates measured east from
512-512: The Equator, one latitudinal second measures 30.715 m , one latitudinal minute is 1843 m and one latitudinal degree is 110.6 km. The circles of longitude, meridians, meet at the geographical poles, with the west–east width of a second naturally decreasing as latitude increases. On the Equator at sea level, one longitudinal second measures 30.92 m, a longitudinal minute is 1855 m and
544-841: The United States Air Force Buildings and structures in Everett, Massachusetts General Electric Superfund sites in Massachusetts Demolished buildings and structures in Massachusetts Hidden categories: Pages using gadget WikiMiniAtlas Infobox mapframe without OSM relation ID on Wikidata Coordinates on Wikidata Pages using the Kartographer extension Geographic coordinate system A geographic coordinate system ( GCS )
576-464: The far western Aleutian Islands . The combination of these two components specifies the position of any location on the surface of Earth, without consideration of altitude or depth. The visual grid on a map formed by lines of latitude and longitude is known as a graticule . The origin/zero point of this system is located in the Gulf of Guinea about 625 km (390 mi) south of Tema , Ghana ,
608-597: The group had approximately 37,500 employees, most of whom were located in Florida and the New England and Middle Atlantic regions. The Delaware Valley alone accounted for roughly 17,600 employees. In 1993, the group was sold to Martin Marietta for over three billion dollars (U.S.), nearly doubling that company's revenue. In 1995, Martin Marietta merged with Lockheed to form Lockheed Martin . In 2010,
640-415: The length in meters of a degree of longitude can be calculated as (Those coefficients can be improved, but as they stand the distance they give is correct within a centimeter.) The formulae both return units of meters per degree. An alternative method to estimate the length of a longitudinal degree at latitude ϕ {\displaystyle \phi } is to assume a spherical Earth (to get
672-481: The motion, while France and Brazil abstained. France adopted Greenwich Mean Time in place of local determinations by the Paris Observatory in 1911. The latitude ϕ of a point on Earth's surface is the angle between the equatorial plane and the straight line that passes through that point and through (or close to) the center of the Earth. Lines joining points of the same latitude trace circles on
SECTION 20
#1732798194467704-523: The one used on published maps OSGB36 by approximately 112 m. The military system ED50 , used by NATO , differs from about 120 m to 180 m. Points on the Earth's surface move relative to each other due to continental plate motion, subsidence, and diurnal Earth tidal movement caused by the Moon and the Sun. This daily movement can be as much as a meter. Continental movement can be up to 10 cm
736-5695: The original on January 16, 2014 . Retrieved 20 May 2013 . ^ "GE may close plant" . Nashua Telegraph . 22 February 1988 . Retrieved 20 May 2013 . v t e General Electric Successor companies* GE Aerospace (legal successor of GE) GE HealthCare GE Vernova [REDACTED] Former subsidiaries and divisions Australian Guarantee Corporation Canadian General Electric Compagnia Generale di Elettricità Current, powered by GE Electric Bond and Share Company GE Additive GE Aerospace (1960s) GE Americom GE Appliances GE Automation & Controls GE Aviation GE Aviation Systems GE Betz GE Capital GE Capital Aviation Services GE Capital IT Solutions GE Capital Rail Services GE Commercial Finance GE Digital GE Energy GE Equipment Services GE HealthCare GE Home & Business Solutions GE Industrial GE Infrastructure GE Jenbacher GE Lighting GE Measurement & Control GE Oil & Gas GE Power GE Renewable Energy GE Research LM Wind Power GE Security GE Transportation GE Waukesha GE Wind GE Venture Capital GE Ventures GECIS GEIS Genesis Lease Genpact Genworth Financial Montgomery Ward Synchrony Financial Tungsram United Nuclear Corporation Utah Construction Company Whatman Joint ventures/ shareholdings Current** Baker Hughes (30%) CFM International (50%) Engine Alliance (50%) GE Hitachi Nuclear Energy (60%) GE Honda Aero Engines (50%) ProlecGE (49.99%) TBS GB Former Alco-GE (1940–53) NBC (1926–30, 1986–2004) NBCUniversal (2004–13) Penske Truck Leasing (15.5%) Wabtec Products and brands Aircraft engines General Comprehensive Operating System GEnie Locomotives Mazda Reciprocating engines Trivection oven Tungsram People Founders Charles A. Coffin Thomas Edison Edwin J. Houston J. P. Morgan Elihu Thomson Executives Jeff Immelt Jack Welch Bob Wright Outside directors James Cash Jr. John L. Flannery Ann M. Fudge Susan Hockfield Andrea Jung Rochelle Lazarus Sam Nunn Roger Penske Vera Silva Douglas A. Warner III Places and facilities GE Building (30 Rockefeller Plaza) GE Building (570 Lexington Avenue) Nela Park Realty Plot Research Laboratory River Works Specialty Control Plant Switchgear Plant Welch Technology Centre Sponsorship Carousel of Progress (1964–65, 1967–73, 1975–85) Horizons at Epcot (1983–93) Other GE True The General Electric Concert General Electric EdgeLab General Electric Theater General Imaging KGEI Litigation Diamond v. Chakrabarty United States v. General Electric Co. Phoebus cartel Thomson-Houston Electric Company Timeline " We Bring Good Things to Life " * Following corporate split-up from 2023 to 2024 ** Joint ventures before corporate split-up from 2023 to 2024 [REDACTED] GE Aerospace template [REDACTED] Category [REDACTED] Commons v t e Current military installations in Massachusetts Army Camps Camp Edwards Camp Curtis Guild Centers Crosman Army Reserve Center Poncin Army Reserve Center Combat Capabilities Development Command Soldier Center Forts Fort Devens Heliports Camp Edwards Heliport Laboratories Base Camp Integration Laboratory [REDACTED] Joint Bases Joint Base Cape Cod (State designation, not federally recognized) Centers David S. Connolly Armed Forces Reserve Center Westover AFRC Navy Centers Navy Operational Support Center Quincy Air Force Bases Barnes Air National Guard Base Hanscom Air Force Base Otis Air Force Base Westover Air Reserve Base Space Force Stations Cape Cod Space Force Station Coast Guard Air Stations Coast Guard Air Station Cape Cod Bases Boston Cape Cod Depots United States Coast Guard Buoy Depot, South Weymouth Stations Brant Point Cape Cod Canal Chatham Gloucester Menemsha Merrimack River Point Allerton Provincetown Scituate Woods Hole Retrieved from " https://en.wikipedia.org/w/index.php?title=General_Electric_Everett_Plant&oldid=1183330020 " Categories : Plants of
768-434: The plant also was home to metal plating. The plant was closed after General Electric decided to consolidate manufacturing at other plants across the country, including to that in nearby Lynn, where parts from Everett were assembled into engines. References [ edit ] ^ "IRP Phase I Air Force Plants Nos 28+29" (PDF) . HQ Air Force Engineering and Services . June 1984. p. 27. Archived (PDF) from
800-535: The proper Eastern and Western Hemispheres , although maps often divide these hemispheres further west in order to keep the Old World on a single side. The antipodal meridian of Greenwich is both 180°W and 180°E. This is not to be conflated with the International Date Line , which diverges from it in several places for political and convenience reasons, including between far eastern Russia and
832-430: The same datum will obtain the same location measurement for the same physical location. However, two different datums will usually yield different location measurements for the same physical location, which may appear to differ by as much as several hundred meters; this not because the location has moved, but because the reference system used to measure it has shifted. Because any spatial reference system or map projection
864-664: The same prime meridian but measured latitude from the Equator instead. After their work was translated into Arabic in the 9th century, Al-Khwārizmī 's Book of the Description of the Earth corrected Marinus' and Ptolemy's errors regarding the length of the Mediterranean Sea , causing medieval Arabic cartography to use a prime meridian around 10° east of Ptolemy's line. Mathematical cartography resumed in Europe following Maximus Planudes ' recovery of Ptolemy's text
896-486: The shape of the earth (usually a reference ellipsoid for a horizontal datum, and a more precise geoid for a vertical datum) to the earth. Traditionally, this binding was created by a network of control points , surveyed locations at which monuments are installed, and were only accurate for a region of the surface of the Earth. Some newer datums are bound to the center of mass of the Earth. This combination of mathematical model and physical binding mean that anyone using
928-464: The surface of Earth called parallels , as they are parallel to the Equator and to each other. The North Pole is 90° N; the South Pole is 90° S. The 0° parallel of latitude is designated the Equator , the fundamental plane of all geographic coordinate systems. The Equator divides the globe into Northern and Southern Hemispheres . The longitude λ of a point on Earth's surface
960-445: The width per minute and second, divide by 60 and 3600, respectively): where Earth's average meridional radius M r {\displaystyle \textstyle {M_{r}}\,\!} is 6,367,449 m . Since the Earth is an oblate spheroid , not spherical, that result can be off by several tenths of a percent; a better approximation of a longitudinal degree at latitude ϕ {\displaystyle \phi }
992-408: Was a business group of General Electric . GE Aerospace made electronics and systems for the military and aerospace industries, like radar, secure communications equipment and military and commercial satellites . The majority of the group's business was in government and military applications. During the late 1960s, GE Aerospace personnel developed the first realtime image generator . In 1991,
General Electric Everett Plant - Misplaced Pages Continue
1024-540: Was a plant operated by General Electric from 1941 into the 1980s in Everett, Massachusetts . It was situated along the Malden River on a 43-acre tract, covering 344,342 square feet. The facility, before it was demolished, was the location of ten smaller buildings and one large manufacturing facility. At the time, it was also home to machining, metal stamping, welding, grinding, cleaning and parts testing. Previously,
#466533