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David’s Sling
David's Sling ( he, קלע דוד, Kela David), also formerly known as Magic Wand ( he , שרביט קסמים, Sharvit Ksamim , links= no), is an Israel Defense Forces military system being jointly developed by the Israeli defense contractor Rafael Advanced Defense Systems and the American defense contractor Raytheon, designed to intercept enemy planes, drones, tactical ballistic missiles, medium- to long-range rockets and cruise missiles, fired at ranges from 40 km (24.85 miles) to 300 km (186.41 miles). David's Sling is meant to replace the MIM-23 Hawk and MIM-104 Patriot in the Israeli arsenal.. The system's Stunner missile is designed to intercept the newest generation of tactical ballistic missiles at low altitude, such as the Russian Iskander and the Chinese DF-15 using an on-board dual CCD/ IR seekers to distinguish between decoys and the actual warhead of the missile, in addition to tracking by Elta EL/M-2084 Active electronically scanned array multi-mode ra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anti-ballistic Missile
An anti-ballistic missile (ABM) is a surface-to-air missile designed to counter ballistic missiles (missile defense). Ballistic missiles are used to deliver nuclear weapon, nuclear, Chemical weapon, chemical, Bioagent, biological, or conventional weapon, conventional warheads in a ballistics, ballistic flight trajectory. The term "anti-ballistic missile" is a generic term conveying a system designed to intercept and destroy any type of ballistic threat; however, it is commonly used for systems specifically designed to counter intercontinental ballistic missiles (ICBMs). Current counter-ICBM systems There are a limited number of systems worldwide that can intercept intercontinental ballistic missiles: * The Russian A-135 anti-ballistic missile system (renamed in 2017 to A-235) is used for the defense of Moscow. It became operational in 1995 and was preceded by the A-35 anti-ballistic missile system. The system uses ABM-4 Gorgon, Gorgon and Gazelle (missile), Gazelle missiles pre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MIM-104 Patriot
The MIM-104 Patriot is a surface-to-air missile (SAM) system, the primary of its kind used by the United States Army and several allied states. It is manufactured by the U.S. defense contractor Raytheon and derives its name from the radar component of the weapon system. The AN/MPQ-53 at the heart of the system is known as the " Phased Array Tracking Radar to Intercept on Target", or PATRIOT. The Patriot system replaced the Nike Hercules system as the U.S. Army's primary High to Medium Air Defense (HIMAD) system and replaced the MIM-23 Hawk system as the U.S. Army's medium tactical air defense system. In addition to these roles, Patriot has been given the function of the U.S. Army's anti-ballistic missile (ABM) system, which is now Patriot's primary mission. The system is expected to stay fielded until at least 2040. Patriot uses an advanced aerial interceptor missile and high-performance radar systems. Patriot was developed at Redstone Arsenal in Huntsville, Alabama, which ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
David And Goliath
Goliath ( ) ''Goləyāṯ''; ar, جُليات ''Ǧulyāt'' (Christian term) or (Quranic term). is a character in the Book of Samuel, described as a Philistine giant defeated by the young David in single combat. The story signified King Saul's unfitness to rule, as Saul himself should have fought for Israel. Scholars today believe that the original listed killer of Goliath was Elhanan, son of Jair, and that the authors of the Deuteronomic history changed the original text to credit the victory to the more famous character David. The phrase "David and Goliath" has taken on a more popular meaning denoting an underdog situation, a contest wherein a smaller, weaker opponent faces a much bigger, stronger adversary. "used to describe a situation in which a small or weak person or organization tries to defeat another much larger or stronger opponent: ''The game looks like it will be a David and Goliath contest.''" Biblical account The Goliath narrative in 1 Samuel 17 Saul and the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Defense News
''Defense News'' is a website and newspaper about the politics, business, and technology of national security published by Sightline Media Group. Founded in 1986, ''Defense News'' serves an audience of senior military, government, and industry decision-makers throughout the world. ''Defense News'' was founded as a weekly newspaper by Army Times Publishing Company. ATPCO was sold in 1997 to Gannett Company (later renamed TEGNA), which sold it to Los Angeles-based private equity firm Regent in 2016, which renamed it Sightline Media Group. ''Defense News'' has a weekly television show about international defense and military issues. It first aired March 2, 2008, as ''This Week in Defense News with Vago Muradian'' on WUSA 9, a Washington, D.C., CBS affiliate. It later aired on ABC 7 WJLA and the Armed Forces Network. In April 2017, the show relaunched on WETA-TV as ''Defense News Weekly'' with two co-hosts: Jill Aitoro, ''Defense News'' executive editor; and Tony Lombardo, executive ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Projectile
A projectile is an object that is propelled by the application of an external force and then moves freely under the influence of gravity and air resistance. Although any objects in motion through space are projectiles, they are commonly found in warfare and sports (for example, a thrown baseball, kicked football, fired bullet, shot arrow, stone released from catapult). In ballistics mathematical equations of motion are used to analyze projectile trajectories through launch, flight, and impact. Motive force Blowguns and pneumatic rifles use compressed gases, while most other guns and cannons utilize expanding gases liberated by sudden chemical reactions by propellants like smokeless powder. Light-gas guns use a combination of these mechanisms. Railguns utilize electromagnetic fields to provide a constant acceleration along the entire length of the device, greatly increasing the muzzle velocity. Some projectiles provide propulsion during flight by means of a rocket engine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Booster (rocketry)
A booster rocket (or engine) is either the first stage of a multistage launch vehicle, or else a shorter-burning rocket used in parallel with longer-burning sustainer rockets to augment the space vehicle's takeoff thrust and payload capability. Boosters are traditionally necessary to launch spacecraft into low Earth orbit (absent a single-stage-to-orbit design), and are especially important for a space vehicle to go beyond Earth orbit. The booster is dropped to fall back to Earth once its fuel is expended, a point known as ''booster engine cut-off'' (BECO). Following booster separation, the rest of the launch vehicle continues flight with its core or upper-stage engines. The booster may be recovered, refurbished and reused, as was the case of the steel casings used for the Space Shuttle Solid Rocket Boosters. Drop-away engines The SM-65 Atlas rocket used three engines, one of which was fixed to the fuel tank, and two of which were mounted on a skirt which dropped away at BECO ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solid-fuel Rocket Motor
A solid-propellant rocket or solid rocket is a rocket with a rocket engine that uses solid propellants (fuel/oxidizer). The earliest rockets were solid-fuel rockets powered by gunpowder; they were used in warfare by the Arabs, Chinese, Persians, Mongols, and Indians as early as the 13th century. All rockets used some form of solid or powdered propellant up until the 20th century, when liquid-propellant rockets offered more efficient and controllable alternatives. Solid rockets are still used today in military armaments worldwide, model rockets, solid rocket boosters and on larger applications for their simplicity and reliability. Since solid-fuel rockets can remain in storage for an extended period without much propellant degradation and because they almost always launch reliably, they have been frequently used in military applications such as missiles. The lower performance of solid propellants (as compared to liquids) does not favor their use as primary propulsion in modern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Portable Document Format
Portable Document Format (PDF), standardized as ISO 32000, is a file format developed by Adobe in 1992 to present documents, including text formatting and images, in a manner independent of application software, hardware, and operating systems.Adobe Systems IncorporatedPDF Reference, Sixth edition, version 1.23 (53 MB) Nov 2006, p. 33. Archiv/ref> Based on the PostScript language, each PDF file encapsulates a complete description of a fixed-layout flat document, including the text, fonts, vector graphics, raster images and other information needed to display it. PDF has its roots in "The Camelot Project" initiated by Adobe co-founder John Warnock in 1991. PDF was standardized as ISO 32000 in 2008. The last edition as ISO 32000-2:2020 was published in December 2020. PDF files may contain a variety of content besides flat text and graphics including logical structuring elements, interactive elements such as annotations and form-fields, layers, rich media (including video con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Active Electronically Scanned Array
An active electronically scanned array (AESA) is a type of phased array antenna, which is a computer-controlled array antenna in which the beam of radio waves can be electronically steered to point in different directions without moving the antenna. In the AESA, each antenna element is connected to a small solid-state transmit/receive module (TRM) under the control of a computer, which performs the functions of a transmitter and/or receiver for the antenna. This contrasts with a passive electronically scanned array (PESA), in which all the antenna elements are connected to a single transmitter and/or receiver through phase shifters under the control of the computer. AESA's main use is in radar, and these are known as active phased array radar (APAR). The AESA is a more advanced, sophisticated, second-generation of the original PESA phased array technology. PESAs can only emit a single beam of radio waves at a single frequency at a time. The PESA must utilize a Butler matrix ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
EL/M-2084
The ELM-2084 is an Israeli ground-based mobile 3D AESA multi-mission radar (MMR) family produced by ELTA, a subsidiary of Israel Aerospace Industries. The radar is capable of detecting and tracking both aircraft and ballistic targets and providing fire control guidance for missile interception or artillery air defense. Several versions of the radar were purchased and are operated by a number of armies, including the Israel Defense Forces, Canadian Army, Republic of Singapore Air Force, Army of the Czech Republic, Slovak Armed Forces. System development The MMR's development was launched by Elta and The Administration for the Development of Weapons and Technology (Hebrew abbreviated Maf'at) in 2002 as a response to the growing ballistic threat to Israel. A prototype of the system was used during IDF operation "Cast Lead" in 2008 as an early warning radar, detecting HAMAS artillery fire and providing accurate alert for the Israeli home front. The first successful interception us ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elta Systems
ELTA Systems Ltd (ELTA) is an Israeli provider of defense products and services specializing in radar, ELINT, COMINT, C4ISTAR, Electronic Warfare, Communication, Autonomous Ground Systems, Intelligence and Cyber products. ELTA, a group and subsidiary of Israel Aerospace Industries, is one of Israel's major defence electronics companies specializing in a variety of fields. The company was established in 1967 and moved to Ashdod as part of Levi Eshkol's policy of industry decentralization. The group operates as a designer and manufacture of defense systems house with products based on electromagnetic sensors (radar, electronic warfare and communication) and on other advanced technologies. ELTA products are designed for use in Intelligence, surveillance, target acquisition, and reconnaissance (ISTAR), early warning & control, homeland security (HLS), self-protection and self-defense, fire control and Cyber Defense . ELTA operates a worldwide marketing network, which includes cu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Warhead
A warhead is the forward section of a device that contains the explosive agent or toxic (biological, chemical, or nuclear) material that is delivered by a missile, rocket, torpedo, or bomb. Classification Types of warheads include: * Explosive: An explosive charge is used to disintegrate the target, and damage surrounding areas with a blast wave. ** Conventional: Chemicals such as gunpowder and high explosives store significant energy within their molecular bonds. This energy can be released quickly by a trigger, such as an electric spark. Thermobaric weapons enhance the blast effect by utilizing the surrounding atmosphere in their explosive reactions. ***Blast: A strong shock wave is provided by the detonation of the explosive. *** Fragmentation: Metal fragments are projected at high velocity to cause damage or injury. *** Continuous rod: Metal bars welded on their ends form a compact cylinder of interconnected rods, which is violently expanded into a contiguous zig-zag-shape ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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