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L3Harris Electron Devices
Stellant Systems Inc. is a manufacturer of microwave devices for ground-based, airborne and satellite communications and radar. In October 2021, Stellant systems was formed from L3Harris Technologies' Electron Devices and Narda Microwave-West divisions when both were sold to Arlington Capital Partners, a Washington D.C. based private equity firm. The company was initially formed from the former Electron Devices Division (EDD) of the Industrial Electronics Group of the Hughes Aircraft Company, and from Litton Industries' Electron Division, both of which were acquired by L-3 Communications Holdings, Inc. L-3 later merged with Harris Corporation in 2019 to form L3Harris Technologies which was followed shortly by both divisions' sale to Arlington in 2021. Stellant is known for their traveling-wave tubes (TWTs), traveling-wave tube amplifiers (TWTAs), microwave power modules (MPMs) and electronic power conditioners (EPCs) as well as xenon gas ion propulsion systems (XIPS). Sinc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Privately Held Company
A privately held company (or simply a private company) is a company whose shares and related rights or obligations are not offered for public subscription or publicly negotiated in the respective listed markets, but rather the company's stock is offered, owned, traded, exchanged privately, or Over-the-counter (finance), over-the-counter. In the case of a closed corporation, there are a relatively small number of shareholders or company members. Related terms are closely-held corporation, unquoted company, and unlisted company. Though less visible than their public company, publicly traded counterparts, private companies have major importance in the world's economy. In 2008, the 441 list of largest private non-governmental companies by revenue, largest private companies in the United States accounted for ($1.8 trillion) in revenues and employed 6.2 million people, according to ''Forbes''. In 2005, using a substantially smaller pool size (22.7%) for comparison, the 339 companies on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xenon Gas
Xenon is a chemical element with the symbol Xe and atomic number 54. It is a dense, colorless, odorless noble gas found in Earth's atmosphere in trace amounts. Although generally unreactive, it can undergo a few chemical reactions such as the formation of xenon hexafluoroplatinate, the first noble gas compound to be synthesized. Xenon is used in flash lamps and arc lamps, and as a general anesthetic. The first excimer laser design used a xenon dimer molecule (Xe2) as the lasing medium, and the earliest laser designs used xenon flash lamps as pumps. Xenon is also used to search for hypothetical weakly interacting massive particles and as a propellant for ion thrusters in spacecraft. Naturally occurring xenon consists of seven stable isotopes and two long-lived radioactive isotopes. More than 40 unstable xenon isotopes undergo radioactive decay, and the isotope ratios of xenon are an important tool for studying the early history of the Solar System. Radioactive xenon-135 is pro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lockheed Martin
The Lockheed Martin Corporation is an American aerospace, arms, defense, information security, and technology corporation with worldwide interests. It was formed by the merger of Lockheed Corporation with Martin Marietta in March 1995. It is headquartered in North Bethesda, Maryland, in the Washington, D.C. area. Lockheed Martin employs approximately 115,000 employees worldwide, including about 60,000 engineers and scientists as of January 2022. Lockheed Martin is one of the largest companies in the aerospace, military support, security, and technologies industry. It is the world's largest defense contractor by revenue for fiscal year 2014.POC Top 20 Defence Contractors of 2014 . Retrieved: July 2015 In 2013, 78% of Lockheed Martin's revenues came from military sales; [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Loral Corporation
Loral Corporation was a defense contractor founded in 1948 in New York by William Lorenz and Leon Alpert as Loral Electronics Corporation. The company's name was taken from the first letters of each founder's surname. History Loral Corporation originally developed radar and sonar systems for the US Navy. In 1959 it went public with an initial offering of 250,000 shares at $12 each. Part of the proceeds from this offering were used to build a new headquarters on its site at 825 Bronx River Avenue, in the Soundview section of The Bronx, New York. In 1959 it began to diversify, buying several smaller companies, through which it won more military contracts. Some purchased companies included Willor Manufacturing Corp., American Beryllium Co., Inc., of Sarasota, Florida, Arco Electronics, and several plastics companies. In 1961, it formed a division for developing communications, telemetry, and space navigation systems for satellites. As its expansion increased, it borrowe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mineola, New York
Mineola is a village in and the county seat of Nassau County, on Long Island, in New York, United States. The population was 18,799 at the 2010 census. The name is derived from an Algonquin Chief, Miniolagamika, which means "pleasant village". The Incorporated Village of Mineola is located primarily in the Town of North Hempstead, with the exception being a small portion of its southern edge within the Town of Hempstead. especially see page 5 Old Country Road runs along the village's southern border. The area serviced by the Mineola Post Office extends farther south into the adjacent village of Garden City, where the Old Nassau County Courthouse is located. Offices of many Nassau County agencies are in both Mineola and Garden City. History The central, flat, grassy part of Long Island was originally known as the Hempstead Plains. In the 19th century, various communities were started in this area. One of those communities was called "Hempstead Branch," which would ultimatel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
L-3 Communications
L3 Technologies, formerly L-3 Communications Holdings, was an American company that supplied command and control, communications, intelligence, surveillance and reconnaissance ( C3ISR) systems and products, avionics, ocean products, training devices and services, instrumentation, aerospace, and navigation products. Its customers included the Department of Defense, Department of Homeland Security, United States Intelligence Community, NASA, aerospace contractors, and commercial telecommunications and wireless customers. In 2019, it merged with Harris Corporation and was renamed to L3Harris Technologies. L3 was headquartered in Murray Hill, Manhattan, New York City. History L3 was formed as L-3 Communications in 1997 to acquire certain business units from Lockheed Martin that had previously been part of Loral Corporation. These units had belonged to Lockheed Corporation and Martin Marietta, which had merged three years before in 1993. The company was founded by (and named for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boeing Satellite Development Center
The Boeing Satellite Development Center is a major business unit of Boeing Defense, Space & Security. It brought together Boeing satellite operations with that of GM Hughes Electronics' Space and Communications division in El Segundo, California. History The facility was originally built by Nash Motors in 1946 and begun production in 1948, building the Nash Rambler. Howard Hughes' Hughes Aircraft Company formed the Aerospace Group within the company when they bought the facility in 1955, when the Nash company became American Motors Corporation and divided the facility into: * Hughes Space and Communications Group * Hughes Space Systems Division In 1953, the Howard Hughes Medical Institute (HHMI) was formed, and Hughes Aircraft reformed as a subsidiary of the foundation. The charity status of the foundation allowed Hughes Aircraft to avoid taxes on its huge income. In 1961, the two Aerospace Group divisions were reformed as Hughes Space and Communications Company. Hughes S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
F-14
The Grumman F-14 Tomcat is an American carrier-capable supersonic, twin-engine, two-seat, twin-tail, variable-sweep wing fighter aircraft. The Tomcat was developed for the United States Navy's Naval Fighter Experimental (VFX) program after the collapse of the General Dynamics-Grumman F-111B project. The F-14 was the first of the American Teen Series fighters, which were designed incorporating air combat experience against MiG fighters during the Vietnam War. The F-14 first flew on 21 December 1970 and made its first deployment in 1974 with the U.S. Navy aboard , replacing the McDonnell Douglas F-4 Phantom II. The F-14 served as the U.S. Navy's primary maritime air superiority fighter, fleet defense interceptor, and tactical aerial reconnaissance platform into the 2000s. The Low Altitude Navigation and Targeting Infrared for Night ( LANTIRN) pod system was added in the 1990s and the Tomcat began performing precision ground-attack missions. The Tomcat was retired by U.S. Navy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Culver City, California
Culver City is a city in Los Angeles County, California, United States. As of the 2020 census, the population was 40,779. Founded in 1917 as a "whites only" sundown town, it is now an ethnically diverse city with what was called the "third-most diverse school district in California" in 2020. In the 1920s, the city became a center for film and later television production, best known as the home of Metro-Goldwyn-Mayer studios. From 1932 to 1986, it was the headquarters for the Hughes Aircraft Company. National Public Radio West and Sony Pictures Entertainment have headquarters in the city. The city was named after its founder, Harry Culver. It is mostly surrounded by the city of Los Angeles, but also shares a border with the unincorporated area of Ladera Heights. Over the years, it has annexed more than 40 pieces of adjoining land and now comprises about . History Early history Archaeological evidence suggests a human presence in the area of present-day Culver City since a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AN/ASG-18
The Hughes AN/ASG-18 Fire Control System was a prototype airborne fire control radar system for the planned North American XF-108 Rapier interceptor aircraft, and the Lockheed YF-12 for the United States Air Force. It was the US's first Pulse-Doppler radar, giving it look-down/shoot-down capability, and was also the first track while scan radar (could track one target at a time). This was paired with an infrared search and track (IRST) system. Range of the radar was estimated at between 200 and 300 miles (322 to 482 km), with reliable detection of bomber-sized targets at 100 miles. The installation itself was massive, weighing 2,100 lb (953 kg), and taking up most of the nose of the aircraft. The system was to be used with the Hughes AIM-47 Falcon missile, which also had a range of about 100 miles. While development work was done with the XF-108, the AN/ASG-18 and Falcon missiles were first tested on a highly modified Convair B-58 Hustler bomber. To fit the radar, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
XF-108 Rapier
The North American XF-108 Rapier was a proposed long-range, high-speed interceptor aircraft designed by North American Aviation intended to defend the United States from supersonic Soviet strategic bombers. The aircraft would have cruised at speeds around with an unrefueled combat radius over , and was equipped with radar and missiles offering engagement ranges up to against bomber-sized targets. To limit development costs, the program shared engine development with the North American XB-70 Valkyrie strategic bomber program, and used a number of elements of earlier interceptor projects. The program had progressed only as far as the construction of a single wooden mockup when it was cancelled in 1959, due to a shortage of funds and the Soviets' adoption of ballistic missiles as their primary means of nuclear attack. Had it flown, the F-108 would have been the heaviest fighter of its era. Prior to the project's cancellation, U.S. President Dwight D. Eisenhower noted that rais ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Northrop Grumman
Northrop Grumman Corporation is an American multinational aerospace and defense technology company. With 90,000 employees and an annual revenue in excess of $30 billion, it is one of the world's largest weapons manufacturers and military technology providers. The firm ranks on the 2022 ''Fortune'' 500 list of America's largest corporations. Northrop Grumman and its industry partners have won the Collier Trophy eight times, most recently for developing the X-47B, the first unmanned, autonomous air system to operate from an aircraft carrier. Northrop Grumman currently leads the development of the B-21 Raider, a long-range, stealth strategic bomber that can drop conventional and nuclear weapons; it will replace Northrop's own B-2 Spirit, the world's only known stealth bomber. Among its other current projects are development and production of the James Webb Space Telescope, an orbiting observatory launched in 2021, and production of the solid rocket boosters for NASA's Space ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
