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Hypersonic Weapon
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 w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hypersonic Flight
Hypersonic flight is flight through the atmosphere below altitudes of about at Hypersonic speed, speeds greater than Mach 5, a speed where Dissociation (chemistry), dissociation of air begins to become significant and high heat loads exist. Speeds over Mach 25 have been achieved below the thermosphere as of 2020. Hypersonic vehicles are able to maneuver through the atmosphere in a #Weapons, non-parabolic trajectory, but their aerodynamic heat loads need to be managed. History The first manufactured object to achieve hypersonic flight was the two-stage RTV-G-4 Bumper, Bumper rocket, consisting of a WAC Corporal second stage set on top of a V-2 rocket, V-2 first stage. In February 1949, at White Sands V-2 Launching Site, White Sands, the rocket reached a speed of , or about Mach 6.7. The vehicle, however, burned on atmospheric re-entry, and only charred remnants were found. In April 1961, Russian Major Yuri Gagarin became the first human to travel at hypersonic speed, dur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Comparison ENG
Comparison or comparing is the act of evaluating two or more things by determining the relevant, comparable characteristics of each thing, and then determining which characteristics of each are Similarity (psychology), similar to the other, which are Difference (philosophy), different, and to what degree. Where characteristics are different, the differences may then be evaluated to determine which thing is best suited for a particular purpose. The description of similarities and differences found between the two things is also called a comparison. Comparison can take many distinct forms, varying by field: To compare things, they must have characteristics that are similar enough in relevant ways to merit comparison. If two things are too different to compare in a useful way, an attempt to compare them is colloquially referred to in English as "comparing apples and oranges." Comparison is widely used in society, in science and the arts. General usage Comparison is a natural act ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ballistic Missiles
A ballistic missile is a type of missile that uses projectile motion to deliver warheads on a target. These weapons are powered only during relatively brief periods—most of the flight is unpowered. Short-range ballistic missiles (SRBM) typically stay within the Earth's atmosphere, while most larger missiles travel outside the atmosphere. The type of ballistic missile with the greatest range is an intercontinental ballistic missile (ICBM). The largest ICBMs are capable of full orbital flight. These missiles are in a distinct category from cruise missiles, which are aerodynamically guided in powered flight and thus restricted to the atmosphere. History One modern pioneer ballistic missile was the A-4, commonly known as the V-2, developed by Nazi Germany in the 1930s and 1940s under the direction of Wernher von Braun. The first successful launch of a V-2 was on October 3, 1942, and it began operation on September 6, 1944, against Paris, followed by an attack on London two day ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Defense Space Architecture
The Space Development Agency (SDA) is a United States Space Force direct-reporting unit tasked with deploying disruptive space technology.SDA.miAbout Us One of the technologies being worked on is space-based missile tracking using large global satellite constellations made up of industry-procured low-cost satellites.Brian Everstin(22 Sep 2022) Why Space Force Wants Out Of GEO, Long Development Cycles noMoreGeoSats. For the Space Force, last of the geosynchronous satellites. Gone by 2040 The SDA has been managed by the United States Space Force since October 2022.United States Space Force By February 2024 the SDA had 38 satellites on orbit.Audrey Decke(30 Aug 2023) SDA readies second batch of satellites for its space data network A test of Link-16 *Theresa Hitchen(5 Sep 2023) SDA launches 13 more Tranche 0 data relay, missile tracking sats for 'warfighter immersion' *Space (2 Sep 2023) Space Development Agency’s Second Tranche 0 Mission SDA intends to have at least 1,000 satelli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Russian Military Doctrine
The military doctrine of Russia is a strategic planning document of the Russian Federation, representing a system of official state-adopted views on preparation and usage of the Russian Armed Forces. The most recent revision of the military doctrine was approved in 2014. Numerous successive revisions of military doctrine have been promulgated since 1990. These have included the military doctrines of May 1992 (in draft form), November 1993, and January 2000, as well as the two National Security Concepts of December 1997 and October 1999. Military doctrine in the Russian sense, however, extends beyond discussion of potential threats. In Christopher Donnelly's words, it forms part of "a set of views, accepted in a country at a given time, which cover the aims and character of possible war, the preparations of the country and its armed forces for such war, and the methods of waging it." 1992 draft The 1992 draft doctrine showed that first Russian thoughts on external threats were litt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Missile Defense
Missile defense is a system, weapon, or technology involved in the detection, tracking, interception, and also the destruction of attacking missiles. Conceived as a defense against nuclear weapon, nuclear-armed intercontinental ballistic missiles (ICBMs), its application has broadened to include shorter-ranged non-nuclear Tactical ballistic missile, tactical and Theater ballistic missile, theater missiles. missile defense systems by country#China, China, France, missile defense systems by country#India, India, Iran, missile defense systems by country#Israel, Israel, Italy, missile defense systems by country#Russia, Russia, missile defense systems by country#Taiwan, Taiwan, the United Kingdom and the missile defense systems by country#United States, United States have all developed such air defense systems. Missile defense categories Missile defense can be divided into categories based on various characteristics: type/range of missile intercepted, the trajectory phase wher ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kremlin
The Moscow Kremlin (also the Kremlin) is a fortified complex in Moscow, Russia. Located in the centre of the country's capital city, the Moscow Kremlin (fortification), Kremlin comprises five palaces, four cathedrals, and the enclosing Moscow Kremlin Wall, Kremlin Wall along with the List of Moscow Kremlin towers, Kremlin towers. In the complex is the Grand Kremlin Palace, which was one of the royal residences of the Emperor of Russia, Tsar of Russia, and now is the residence of the President of Russia, president of the Russian Federation. The Moscow Kremlin overlooks the Moskva (river), Moskva River to the south, Saint Basil's Cathedral and Red Square to the east, and Alexander Garden to the west. In the Russian language, ''kremlin'' denotes a 'fortress within a city', and there are many historical cities with Kremlin of their own. However, the Moscow Kremlin, the best known, also serves an international-politics Metonymy, metonym that identifies the Government of Russia. D ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Russia
Russia, or the Russian Federation, is a country spanning Eastern Europe and North Asia. It is the list of countries and dependencies by area, largest country in the world, and extends across Time in Russia, eleven time zones, sharing Borders of Russia, land borders with fourteen countries. Russia is the List of European countries by population, most populous country in Europe and the List of countries and dependencies by population, ninth-most populous country in the world. It is a Urbanization by sovereign state, highly urbanised country, with sixteen of its urban areas having more than 1 million inhabitants. Moscow, the List of metropolitan areas in Europe, most populous metropolitan area in Europe, is the capital and List of cities and towns in Russia by population, largest city of Russia, while Saint Petersburg is its second-largest city and Society and culture in Saint Petersburg, cultural centre. Human settlement on the territory of modern Russia dates back to the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2022 Russian Invasion Of Ukraine
On 24 February 2022, , starting the largest and deadliest war in Europe since World War II, in a major escalation of the Russo-Ukrainian War, conflict between the two countries which began in 2014. The fighting has caused hundreds of thousands of Casualties of the Russo-Ukrainian War, military casualties and tens of thousands of Ukrainian Attacks on civilians in the Russian invasion of Ukraine, civilian casualties. As of 2025, Russian troops Russian-occupied territories of Ukraine, occupy about 20% of Ukraine. From a population of 41 million, about 8 million Ukrainians had been internally displaced and more than 8.2 million Ukrainian refugee crisis, had fled the country by April 2023, creating Europe's List of largest refugee crises, largest refugee crisis since World War II. In late 2021, Russia Prelude to the Russian invasion of Ukraine, massed troops near Ukraine's borders and December 2021 Russian ultimatum to NATO, issued demands to the Western world, West i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Air Force
The United States Air Force (USAF) is the Air force, air service branch of the United States Department of Defense. It is one of the six United States Armed Forces and one of the eight uniformed services of the United States. Tracing its origins to 1 August 1907, as a part of the United States Army Signal Corps, the USAF was established by transfer of personnel from the Army Air Forces with the enactment of the National Security Act of 1947. It is the second youngest branch of the United States Armed Forces and the fourth in United States order of precedence, order of precedence. The United States Air Force articulates its core missions as air supremacy, intelligence, surveillance, target acquisition, and reconnaissance, global integrated intelligence, surveillance and reconnaissance, airlift, rapid global mobility, Strategic bombing, global strike, and command and control. The United States Department of the Air Force, Department of the Air Force, which serves as the USAF's ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ASALM
The Advanced Strategic Air-Launched Missile (ASALM) was a medium-range strategic missile program, developed in the late 1970s for the United States Air Force. Intended for use in both the air-to-surface missile, air-to-surface and air-to-air missile, anti-Airborne early warning and control, AWACS roles, the missile's development reached the stage of propulsion-system tests before being cancelled in 1980. Design and development Development of the Advanced Strategic Air-Launched Missile was initiated in 1976.Parsch 2003 The ASALM was intended to replace the AGM-69 SRAM in United States Air Force service, providing improved speed and range over the earlier missile, as well as improved performance against hardened targets.Gunston 1983, p.88. In addition, the requirement specified that the ASALM should be capable of operating in a secondary air-to-air mode against Airborne early warning and control, AWACS radar-warning aircraft. Martin Marietta and McDonnell Douglas submitted proposals ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silbervogel
Silbervogel (German for "silver bird") was a design for a liquid-propellant rocket-powered sub-orbital bomber produced by Eugen Sänger and Irene Bredt in the late 1930s for The Third Reich. It is also known as the RaBo ( – "rocket bomber"). It was one of a number of designs considered for the ''Amerikabomber'' project, which started in the spring of 1942, being focused solely on trans-Atlantic-range piston-engined strategic bombers such as the Messerschmitt Me 264 and the Junkers Ju 390, the only two airframe types which were actually built and flown for the competition. When Walter Dornberger attempted to create interest in military spaceplanes in the United States after World War II he chose the more diplomatic term ''antipodal bomber''. Concept The design incorporated new rocket technology and the principle of the lifting body, foreshadowing future development of winged spacecraft such as the X-20 Dyna-Soar of the 1960s and the Space Shuttle of the 1970s. In the end, i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
