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AGM-183A
The AGM-183 ARRW ("Air-Launched Rapid Response Weapon") is a hypersonic air-to-ground ballistic missile planned for use by the United States Air Force. Developed by Lockheed Martin, the boost-glide vehicle is propelled to a maximum speed of more than Mach 5 by a rocket motor before gliding toward its target. The program was cancelled in March 2023 after multiple failed tests. The program continued despite the cancellation and was announced in late 2023 to still be in development following additional, undisclosed testing, but in 2024 it was announced that in the fiscal year 2025 budget, no funding would be provided for procurement or further research and development. History Development and acquisition In August 2018, the U.S. Air Force awarded a $480 million contract to Lockheed Martin for the development of an air-launched hypersonic weapon. The resulting missile, the AGM-183A ARRW ("Arrow"), underwent an initial captive carry flight test aboard a U.S. Air Force B-52 in J ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Air-launched Ballistic Missile
An air-launched ballistic missile (ALBM) is a ballistic missile launched from an aircraft. An ALBM allows the launch aircraft to stand off at long distances from its target, keeping it well outside the range of defensive weapons like anti-aircraft missiles and interceptor aircraft. Historically, once launched the missile was essentially immune to interception due to a lack of capable anti-ballistic missiles, with those few that did exist being limited to known static positions. This combination of features allowed a strategic bomber to present a credible deterrent second-strike option in an era when improving anti-aircraft defences appeared to be rendering conventional bombers obsolete. However, by the 1990s surface-to-air missile technology had innovated to the point of allowing the interception of such weapons (especially in their terminal phase) from road mobile systems, albeit at a lower probability of kill(PoK). By the early 21st century capable, dedicated, ABM systems ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hypersonic Weapons
A hypersonic weapon is a weapon capable of maneuvering at hypersonic speed, defined as above Mach 5, or above 5 times the speed of sound. Below Mach 1, weapons would be characterized as subsonic, and above Mach 1, as supersonic. At extremely high speeds, air in the shock wave is ionized into a plasma, which makes control and communication difficult. Categorization There are three main categories of hypersonic weapon: # Boost-glide weapons, which glide and maneuver at hypersonic speeds following boosting by rocket propulsion. Examples include ballistic missiles fitted with hypersonic glide vehicle warheads. # Airbreathing weapons, typically hypersonic cruise missiles which maintain hypersonic speed by engines such as scramjets. # Gun-launched weapons, projectiles fired from either a conventional artillery or prospective railguns. Existing weapon systems such as ballistic missiles already travel at hypersonic speeds (and may actually reach their target sooner when on d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
B-52
The Boeing B-52 Stratofortress is an American long-range, subsonic, jet-powered strategic bomber. The B-52 was designed and built by Boeing, which has continued to provide support and upgrades. It has been operated by the United States Air Force (USAF) since 1955 and was flown by NASA from 1959 to 2007. The bomber can carry up to of weapons and has a typical combat range of around without aerial refueling. After Boeing won the initial contract in June 1946, the aircraft's design evolved from a straight-wing aircraft powered by six turboprop engines to the final prototype YB-52 with eight turbojet engines and swept wings. The B-52 took its maiden flight in April 1952. Built to carry nuclear weapons for Cold War deterrence missions, the B-52 Stratofortress replaced the Convair B-36 Peacemaker. The bombers flew under the Strategic Air Command (SAC) until it was disestablished in 1992 and its aircraft absorbed into the Air Combat Command (ACC); in 2010, all B-52s we ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boost-glide
Non-ballistic atmospheric entry is a class of atmospheric entry trajectories that follow a non-ballistic trajectory by employing aerodynamic lift in the high upper atmosphere. It includes trajectories such as skip and glide. Skip is a flight trajectory where the spacecraft goes in and out the atmosphere. Glide is a flight trajectory where the spacecraft stays in the atmosphere for a sustained flight period of time. In most examples, a skip reentry roughly doubles the range of suborbital spaceplanes and reentry vehicles over the purely ballistic trajectory. In others, a series of ''skips'' allows the range to be further extended. Non-ballistic atmospheric entry was first seriously studied as a way to extend the range of ballistic missiles, but was not used operationally in this form as conventional missiles with extended range were introduced. The underlying aerodynamic concepts have been used to produce maneuverable reentry vehicles (MARV), to increase the accuracy of some miss ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Air-to-ground Missile
An air-to-surface missile (ASM) or air-to-ground missile (AGM) is a missile designed to be launched from military aircraft at targets on land or sea. There are also unpowered guided glide bombs not considered missiles. The two most common propulsion systems for air-to-surface missiles are rocket motors, usually with shorter range, and slower, longer-range jet engines. Some Soviet-designed air-to-surface missiles are powered by ramjets, giving them both long range and high speed. Guidance for air-to-surface missiles is typically via laser guidance, infrared guidance, optical guidance or via satellite guidance signals. The type of guidance depends on the type of target. Ships, for example, may be detected via passive radar or active radar homing, which is less effective against multiple, small, fast-moving land targets. There is some cross-over between air-to-surface missiles and surface-to-surface missiles. For example, there was an air-launched version of the Tomahawk mi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Business Insider
''Business Insider'' (stylized in all caps: BUSINESS INSIDER; known from 2021 to 2023 as INSIDER) is a New York City–based multinational financial and business news website founded in 2007. Since 2015, a majority stake in ''Business Insider''s parent company Insider Inc. has been owned by the international publishing house Axel Springer. It operates several international editions, including one in the United Kingdom. ''Insider'' publishes original reporting and aggregates material from other outlets. it maintained a liberal policy on the use of anonymous sources. It has also published native advertising and granted sponsors editorial control of its content. The outlet has been nominated for several awards, but has also been criticized for using factually incorrect clickbait headlines to attract viewership. In 2015, Axel Springer SE acquired 88 percent of the stake in Insider Inc. for $343 million (€306 million), implying a total valuation of $442 million. From ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Hill (newspaper)
''The Hill'', formed in 1994, is an American newspaper and digital media company based in Washington, D.C. Focusing on politics, policy, business and international relations, ''The Hill''s coverage includes the U.S. Congress, the presidency and executive branch, and election campaigns. Its stated output is "nonpartisan reporting on the inner workings of Government and the nexus of politics and business". The company's primary outlet is ''TheHill.com''. ''The Hill'' is additionally distributed in print for free around Washington, D.C., and distributed to all congressional offices. It has been owned by Nexstar Media Group since 2021. In 2020, ''The Hill'' was ranked second for online politics readership across all news sites, behind only CNN, remaining ahead of ''Politico'', Fox News, NBCNews.com, and MSNBC. ''The Hill'' had around 32 million monthly viewers in 2023. History Founding and early years The company was formed as a newspaper in 1994 by Democratic power broker ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arms Control Association
The Arms Control Association is a United States–based nonpartisan membership organization founded in 1971, with the self-stated mission of "promoting public understanding of and support for effective arms control policies." The group publishes the monthly magazine ''Arms Control Today''. It contains topical news updates as well as extended, footnoted articles. Projects Through its online content, print materials, and events, the Arms Control Association provides policymakers, media, and the interested public with information, analysis and commentary on arms control proposals, negotiations and agreements, and related national security issues. Staff and funding The Arms Control Association is supported by grants from the Ploughshares Fund, the John D. and Catherine T. MacArthur Foundation, the Carnegie Corporation of New York, the Colombe Foundation, the New Land Foundation, the Prospect Hill Foundation, the Stewart R. Mott Foundation, and the William and Flora Hewlett Foundatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Times Of Israel
''The Times of Israel'' (ToI) is an Israeli multi-language online newspaper that was launched in 2012 and has since become the largest English-language Jewish and Israeli news source by audience size. It was co-founded by Israeli journalist David Horovitz, who is also the founding editor, and American billionaire investor Seth Klarman.Forbes: The World's Billionaires: Seth Klarman . April 2014. Based in , it "documents developments in Israel, the Middle East and around the Jewish world." Along with its original English site, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Associated Press
The Associated Press (AP) is an American not-for-profit organization, not-for-profit news agency headquartered in New York City. Founded in 1846, it operates as a cooperative, unincorporated association, and produces news reports that are distributed to its members, major U.S. daily newspapers and radio and television broadcasters. Since the award was established in 1917, the AP has earned 59 Pulitzer Prizes, including 36 for photography. The AP is also known for its widely used ''AP Stylebook'', its AP polls tracking National Collegiate Athletic Association, NCAA sports, sponsoring the National Football League's annual awards, and its election polls and results during Elections in the United States, US elections. By 2016, news collected by the AP was published and republished by more than 1,300 newspapers and broadcasters. The AP operates 235 news bureaus in 94 countries, and publishes in English, Spanish, and Arabic. It also operates the AP Radio Network, which provides twice ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Donald Trump
Donald John Trump (born June 14, 1946) is an American politician, media personality, and businessman who is the 47th president of the United States. A member of the Republican Party (United States), Republican Party, he served as the 45th president from 2017 to 2021. Born into a wealthy family in the New York City borough of Queens, Trump graduated from the University of Pennsylvania in 1968 with a bachelor's degree in economics. He became the president of his family's real estate business in 1971, renamed it the Trump Organization, and began acquiring and building skyscrapers, hotels, casinos, and golf courses. He launched side ventures, many licensing the Trump name, and filed for six business bankruptcies in the 1990s and 2000s. From 2004 to 2015, he hosted the reality television show ''The Apprentice (American TV series), The Apprentice'', bolstering his fame as a billionaire. Presenting himself as a political outsider, Trump won the 2016 United States presidential e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nick Schifrin
Nick Schifrin (born July 10, 1980) is an American journalist. He is the ''PBS NewsHour'' foreign affairs and defense correspondent. He was previously Al Jazeera America's Middle East correspondent and a correspondent for ABC News in London and in Afghanistan/Pakistan. Early life and education Schifrin grew up in Los Angeles, California. He graduated from Columbia University. During his time at Columbia, Schifrin served as managing editor of the ''Columbia Daily Spectator''. ABC News In 2002 Schifrin joined ABC News as an overnight desk assistant. In 2006, Schifrin helped launch the daily World News Webcast, the first network show designed for the web and iTunes. He served as the show's writer and broadcast producer. In its review of the webcast, ''The New York Times'' called the show's stories "raw and personal, as if they were made for MTV rather than ABC". In 2007, Schifrin moved to New Delhi, India, where he served as an ABC News reporter. There, he interviewed the Dalai La ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
