|
Hypersonic Technology Vehicle 2
Hypersonic Technology Vehicle 2 (HTV-2) is an experimental hypersonic glide vehicle developed as part of the DARPA Falcon Project designed to fly in the Mach 20 range. It is a test bed for technologies to provide the United States with the capability to reach any target in the world within one hour (Prompt Global Strike) using an unmanned hypersonic bomber aircraft. Development The Falcon HTV-1 program, which preceded the Falcon HTV-2 program, was conducted in April, 2010. The mission ended within nine minutes from launch. Both these missions are funded by the US Defense Advanced Research Projects Agency (DARPA) to help develop hypersonic technologies and to demonstrate its effectiveness. Under the original plan, HTV-1 was to feature a hypersonic lift-to-drag ratio of 2.5, increasing to 3.5-4 for the HTV-2 and 4-5 for the HTV-3. The actual lift-to-drag ratio of HTV-2 was estimated to be 2.6. HTV-2 was to lead to the development of an HTV-3X vehicle, known as Blackswift, which wou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Speed Is Life HTV-2 Reentry New
In everyday use and in kinematics, the speed (commonly referred to as ''v'') of an object is the magnitude of the change of its position over time or the magnitude of the change of its position per unit of time; it is thus a scalar quantity. The average speed of an object in an interval of time is the distance travelled by the object divided by the duration of the interval; the instantaneous speed is the limit of the average speed as the duration of the time interval approaches zero. Speed is not the same as velocity. Speed has the dimensions of distance divided by time. The SI unit of speed is the metre per second (m/s), but the most common unit of speed in everyday usage is the kilometre per hour (km/h) or, in the US and the UK, miles per hour (mph). For air and marine travel, the knot is commonly used. The fastest possible speed at which energy or information can travel, according to special relativity, is the speed of light in a vacuum ''c'' = metres per second (approx ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hypersonic Speed
In aerodynamics, a hypersonic speed is one that exceeds 5 times the speed of sound, often stated as starting at speeds of Mach 5 and above. The precise Mach number at which a craft can be said to be flying at hypersonic speed varies, since individual physical changes in the airflow (like molecular dissociation and ionization) occur at different speeds; these effects collectively become important around Mach 5-10. The hypersonic regime can also be alternatively defined as speeds where specific heat capacity changes with the temperature of the flow as kinetic energy of the moving object is converted into heat. Characteristics of flow While the definition of hypersonic flow can be quite vague and is generally debatable (especially due to the absence of discontinuity between supersonic and hypersonic flows), a hypersonic flow may be characterized by certain physical phenomena that can no longer be analytically discounted as in supersonic flow. The peculiarity in hypersonic flows ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boeing X-51
The Boeing X-51 Waverider is an Unmanned aerial vehicle, unmanned research scramjet experimental aircraft for hypersonic flight at and an altitude of . The aircraft was designated X-51 in 2005. It completed its first powered hypersonic flight on 26 May 2010. After two unsuccessful test flights, the X-51 completed a flight of over six minutes and reached speeds of over Mach 5 for 210 seconds on 1 May 2013 for the longest duration powered hypersonic flight. ''Waverider'' refers in general to aircraft that take advantage of compression lift produced by their own shock waves. The X-51 program was a cooperative effort by the United States Air Force, DARPA, NASA, Boeing, and Pratt & Whitney Rocketdyne. The program was managed by the Aerospace Systems Directorate within the U.S. Air Force Research Laboratory (AFRL). Design and development In the 1990s, the Air Force Research Laboratory (AFRL) began the Scramjet programs#HyTECH, HyTECH program for hypersonic air propulsion, propulsi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Avangard (hypersonic Glide Vehicle)
The Avangard (russian: Авангард; en, Vanguard; previously known as Objekt 4202, Yu-71 and Yu-74) is a Russian hypersonic glide vehicle (HGV) that can be carried as a MIRV payload by the UR-100UTTKh, R-36M2 and RS-28 Sarmat heavy ICBMs. It can deliver both nuclear and conventional payloads. The Avangard is one of the six new Russian strategic weapons unveiled by Russian President Vladimir Putin on 1 March 2018. History According to Vladimir Putin, the US withdrawal from the ABM Treaty in 2002 forced Russia to start developing hypersonic weapons: "We had to create these ypersonicweapons in response to the US deployment of a strategic missile defense system, which in the future would be capable of virtually neutralizing, zeroing out all our nuclear potential". In 2007, when asked about U.S. plans to deploy ballistic missile defenses in Europe, Putin mentioned that Russia was developing “strategic weapons systems of a completely different type that will fly at hyperson ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DF-ZF
The DF-ZF is a Chinese hypersonic glide vehicle (HGV), previously denoted by the Pentagon as WU-14 and currently officially operational on October 1st, 2019, in the 70th anniversary of the People's Republic of China. The DF-ZF is designed to be mounted on a DF-17, a type of ballistic missile specifically designed to carry HGVs. Testing The DF-ZF, designated by Pentagon as the WU-14, is a hypersonic missile delivery vehicle that has been flight-tested by China seven times, on 9 January, 7 August and 2 December 2014; 7 June and 27 November 2015; in April 2016 and twice in November 2017. The system is operational as of 2019. The Chinese Defense Ministry confirmed its January 2014 test and said the test was "scientific" in nature, although it was widely viewed as part of a broader Chinese military build-up. All seven tests China performed so far were concluded successfully according to U.S. officials cited in ''The Washington Free Beacon''. All the test launches were performed at the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tactical Boost Glide
The Defense Advanced Research Projects Agency (DARPA) is a research and development agency of the United States Department of Defense responsible for the development of emerging technologies for use by the military. Originally known as the Advanced Research Projects Agency (ARPA), the agency was created on February 7, 1958, by President Dwight D. Eisenhower in response to the Soviet launching of Sputnik 1 in 1957. By collaborating with academia, industry, and government partners, DARPA formulates and executes research and development projects to expand the frontiers of technology and science, often beyond immediate U.S. military requirements.Dwight D. Eisenhower and Science & Technology, (2008). Dwight D. Eisenhower Memorial CommissionSource ''The Economist'' has called DARPA the agency "that shaped the modern world," and pointed out that " Moderna's COVID-19 vaccine sits alongside weather satellites, GPS, drones, stealth technology, voice interfaces, the personal compute ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
US DoD, Navy, Army Jointly Conducted A Flight Experiment Of A Common Hypersonic Glide Body From Pacific Missile Range Facility, Hawaii On 19 March 2020
The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territories, nine Minor Outlying Islands, and 326 Indian reservations. The United States is also in free association with three Pacific Island sovereign states: the Federated States of Micronesia, the Marshall Islands, and the Republic of Palau. It is the world's third-largest country by both land and total area. It shares land borders with Canada to its north and with Mexico to its south and has maritime borders with the Bahamas, Cuba, Russia, and other nations. With a population of over 333 million, it is the most populous country in the Americas and the third most populous in the world. The national capital of the United States is Washington, D.C. and its most populous city and principal financial center is New York City. Paleo-Americans ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Space
Space is the boundless three-dimensional extent in which objects and events have relative position and direction. In classical physics, physical space is often conceived in three linear dimensions, although modern physicists usually consider it, with time, to be part of a boundless four-dimensional continuum known as spacetime. The concept of space is considered to be of fundamental importance to an understanding of the physical universe. However, disagreement continues between philosophers over whether it is itself an entity, a relationship between entities, or part of a conceptual framework. Debates concerning the nature, essence and the mode of existence of space date back to antiquity; namely, to treatises like the ''Timaeus'' of Plato, or Socrates in his reflections on what the Greeks called ''khôra'' (i.e. "space"), or in the ''Physics'' of Aristotle (Book IV, Delta) in the definition of ''topos'' (i.e. place), or in the later "geometrical conception of place" as "spac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Business Times
The ''International Business Times'' is an American online news publication that publishes five national editions in four languages. The publication, sometimes called ''IBTimes'' or ''IBT'', offers news, opinion and editorial commentary on business and commerce. IBT is one of the world's largest online news sources, receiving forty million unique visitors each month. Its 2013 revenues were around $21 million. As of January 2022, IBTimes editions include Australia, India, International, Singapore, U.K. and U.S. ''IBTimes'' was launched in 2005; it is owned by IBT Media, and was founded by Etienne Uzac and Johnathan Davis. Its headquarters are in the Financial District of Lower Manhattan, New York City. History Founder Etienne Uzac, a native of France, came up with the idea for the global business news site while a student at the London School of Economics. He found that the strongest business newspapers had a focus on the United States and Europe and planned to provide broad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Washington Times
''The Washington Times'' is an American conservative daily newspaper published in Washington, D.C., that covers general interest topics with a particular emphasis on national politics. Its broadsheet daily edition is distributed throughout the District of Columbia and in parts of Maryland and Virginia. A weekly tabloid edition aimed at a national audience is also published. ''The Washington Times'' was one of the first American broadsheets to publish its front page in full color. ''The Washington Times'' was founded on May 17, 1982, by Unification movement leader Sun Myung Moon and owned until 2010 by News World Communications, an international media conglomerate founded by Moon. It is currently owned by Operations Holdings, which is a part of the Unification movement. Throughout its history, ''The Washington Times'' has been known for its conservative political stance, supporting the policies of Republican presidents Ronald Reagan, George H. W. Bush, George W. Bush, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Washington Times
''The Washington Times'' is an American conservative daily newspaper published in Washington, D.C., that covers general interest topics with a particular emphasis on national politics. Its broadsheet daily edition is distributed throughout the District of Columbia and in parts of Maryland and Virginia. A weekly tabloid edition aimed at a national audience is also published. ''The Washington Times'' was one of the first American broadsheets to publish its front page in full color. ''The Washington Times'' was founded on May 17, 1982, by Unification movement leader Sun Myung Moon and owned until 2010 by News World Communications, an international media conglomerate founded by Moon. It is currently owned by Operations Holdings, which is a part of the Unification movement. Throughout its history, ''The Washington Times'' has been known for its conservative political stance, supporting the policies of Republican presidents Ronald Reagan, George H. W. Bush, George W. Bush, an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vandenberg Air Force Base
Vandenberg may refer to: * Vandenberg (surname), including a list of people with the name * USS General Harry Taylor (AP-145), USNS ''General Hoyt S. Vandenberg'' (T-AGM-10), transport ship in the United States Navy, sank as an artificial reef in Key West, Florida * Vandenberg Space Force Base, a United States military installation with a spaceport * Vandenberg (band), a Dutch hard rock band ** Vandenberg (album), ''Vandenberg'' (album), their 1982 debut album * Vandenberg resolution, a United States Congress resolution passed in 1948 {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
_Mach_7_computational_fluid_dynamic_(CFD).jpg "Click for more on -> Hypersonic Speed")
