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Hy-Bor
Hy-Bor is a trademarked brand of hybrid composite materials that combines boron fiber and carbon fiber in a unidirectional prepreg. The portfolio was introduced to the commercial market in 1993 by Textron Specialty Materials and currently marketed by Specialty Materials. The material's unique combination of constituent properties for fiber-reinforced composites has led to adoption in aerospace, sporting goods, and space applications. History In 1990, Tonen Chemical Corporation applied for and was awarded a patent which described a process for combining both boron fiber and carbon fiber into a unidirectional prepreg to enhance both strength and elastic modulus. Textron Specialty Materials commercialized Hy-Bor in 1993, initially offering combinations of 3-mil (76 micron) or 4-mil (100 micron) boron fiber with various carbon fibers, including Toray T300, Hexcel IM7, and Syensqo T650 carbon fibers, using thermoset toughened epoxies and thermoplastic polyimides. Textron dive ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boron Fiber
Boron fiber or boron filament is an amorphous product which represents the major industrial use of elemental boron. Boron fiber manifests a combination of high strength and high elastic modulus. A common use of boron fibers is in the construction of high tensile strength tapes. Boron fiber use results in high-strength, lightweight materials that are used chiefly for advanced aerospace structures as a component of composite materials, as well as limited production consumer and sporting goods such as golf clubs and fishing rods. One of the uses of boron fiber composites was the horizontal tail surfaces of the F-14 Tomcat fighter. This was done because carbon fiber composites were not then developed to the point they could be used, as they were in many subsequent aircraft designs. Boron fiber is a primary reinforcement constituent in Hy-Bor, a prepreg blend of boron fiber and carbon fiber primarily used for high-performance aerospace and sporting goods applications. In the p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trademark
A trademark (also written trade mark or trade-mark) is a form of intellectual property that consists of a word, phrase, symbol, design, or a combination that identifies a Good (economics and accounting), product or Service (economics), service from a particular source and distinguishes it from others. Trademarks can also extend to non-traditional marks like drawings, symbols, 3D shapes like product designs or packaging, sounds, scents, or specific colours used to create a unique identity. For example, Pepsi® is a registered trademark associated with soft drinks, and the distinctive shape of the Coca-Cola® bottle is a registered trademark protecting Coca-Cola's packaging design. The primary function of a trademark is to identify the source of goods or services and prevent consumers from confusing them with those from other sources. Legal protection for trademarks is typically secured through registration with governmental agencies, such as the United States Patent and Trademark ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thermoplastic Polymer
A thermoplastic, or thermosoftening plastic, is any plastic polymer material that becomes pliable or moldable at a certain elevated temperature and solidifies upon cooling. Most thermoplastics have a high molecular weight. The polymer chains associate by intermolecular forces, which weaken rapidly with increased temperature, yielding a viscous liquid. In this state, thermoplastics may be reshaped, and are typically used to produce parts by various polymer processing techniques such as injection molding, compression molding, calendering, and extrusion. Thermoplastics differ from thermosetting polymers (or "thermosets"), which form irreversible chemical bonds during the curing process. Thermosets do not melt when heated, but typically decompose and do not reform upon cooling. Above its glass transition temperature and below its melting point, the physical properties of a thermoplastic change drastically without an associated phase change. Some thermoplastics do not fully crystal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MQ-1C Gray Eagle
The General Atomics MQ-1C Gray Eagle (previously the Warrior; also called Sky Warrior and ERMP or Extended-Range Multi-Purpose) is a medium-altitude, long-endurance (MALE) unmanned aircraft system (UAS). It was developed by General Atomics Aeronautical Systems (GA-ASI) for the United States Army as an upgrade of the General Atomics MQ-1 Predator. Development The U.S. Army initiated the Extended-Range Multi-Purpose UAV competition in 2002, with the winning aircraft due to replace the RQ-5 Hunter. Two aircraft were entered, the IAI/Northrop Grumman Hunter II, and the Warrior. In August 2005, the Army announced the Warrior to be the winner and awarded a $214 million contract for system development and demonstration. The Army intended to procure eleven Warrior systems, each of these units having twelve UAVs and five ground control stations. With an expected total program cost of $1 billion, the aircraft was to enter service in 2009. The Army announced on 3 September 2010 that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spar (aeronautics)
In a fixed-wing aircraft, the spar is often the main structural member of the wing, running spanwise at right angles (or thereabouts depending on wing sweep) to the fuselage. The spar carries flight loads and the weight of the wings while on the ground. Other structural and forming members such as ribs may be attached to the spar or spars, with stressed skin construction also sharing the loads where it is used. There may be more than one spar in a wing or none at all. Where a single spar carries most of the force, it is known as the main spar. Spars are also used in other aircraft aerofoil surfaces such as the tailplane and fin and serve a similar function, although the loads transmitted may be different from those of a wing spar. Spar loads The wing spar provides the majority of the weight support and dynamic load integrity of cantilever monoplanes, often coupled with the strength of the wing 'D' box itself. Together, these two structural components collectively provide the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Materiel
Materiel or matériel (; ) is supplies, equipment, and weapons in military supply-chain management, and typically supplies and equipment in a commerce, commercial supply chain management, supply chain context. Military In a military context, the term ''materiel'' refers either to the specific needs (excluding manpower) of a force to complete a specific military operation, mission, or the general sense of the needs (excluding manpower) of a functioning army. An important category of materiel is commonly referred to as ordnance, especially concerning mounted guns (artillery) and the shell (projectile), shells they consume. Along with fuel, and ammunition, munitions in general, the steady supply of ordnance is an ongoing logistical challenge in active combat zones. Materiel management consists of continuing actions relating to planning, organizing, directing, coordinating, controlling, and evaluating the application of resources to ensure the effective and economical support of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AGM-114 Hellfire
The AGM-114 Hellfire is an American missile developed for anti-armor use, later developed for precision drone strikes against other target types, especially high-value targets. It was originally developed under the name " Heliborne laser, fire-and-forget missile", which led to the colloquial name "Hellfire" ultimately becoming the missile's formal name. It has a multi-mission, multi-target precision-strike ability and can be launched from multiple air, sea, and ground platforms, including the MQ-1 Predator and MQ-9 Reaper. The Hellfire missile is the primary class air-to-ground precision weapon for the armed forces of the United States and many other countries. It has also been fielded on surface platforms in the surface-to-surface and surface-to-air roles. Description Most variants are laser-guided, with one variant, the AGM-114L "Longbow Hellfire", being radar-guided. Laser guidance can be provided either from the launcher, such as the nose-mounted opto-electronics of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Airframe
The mechanical structure of an aircraft is known as the airframe. This structure is typically considered to include the fuselage, undercarriage, empennage and wings, and excludes the propulsion system. Airframe design is a field of aerospace engineering that combines aerodynamics, materials technology and manufacturing methods with a focus on weight, strength and aerodynamic drag, as well as reliability and cost.Michael C. Y. Niu (1988). ''Airframe Structural Design''. Conmilit Press LTD. History Modern airframe history began in the United States during the Wright Flyer's maiden flight, showing the potential of fixed-wing designs in aircraft. In 1912 the Deperdussin Monocoque pioneered the light, strong and streamlined monocoque fuselage formed of thin plywood layers over a circular frame, achieving . First World War Many early developments were spurred by military needs during World War I. Well known aircraft from that era include the Dutch designer Anthony ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Central Intelligence Agency
The Central Intelligence Agency (CIA; ) is a civilian foreign intelligence service of the federal government of the United States tasked with advancing national security through collecting and analyzing intelligence from around the world and conducting covert operations. The agency is headquartered in the George Bush Center for Intelligence in Langley, Virginia, and is sometimes metonymously called "Langley". A major member of the United States Intelligence Community (IC), the CIA has reported to the director of national intelligence since 2004, and is focused on providing intelligence for the president and the Cabinet. The CIA is headed by a director and is divided into various directorates, including a Directorate of Analysis and Directorate of Operations. Unlike the Federal Bureau of Investigation (FBI), the CIA has no law enforcement function and focuses on intelligence gathering overseas, with only limited domestic intelligence collection. The CIA is responsibl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
General Atomics MQ-1 Predator
The General Atomics MQ-1 Predator (often referred to as the Predator drone) is an American remotely piloted aircraft (RPA) built by General Atomics that was used primarily by the United States Air Force (USAF) and Central Intelligence Agency (CIA). Conceived in the early 1990s for aerial reconnaissance and forward observation roles, the Predator carries cameras and other sensors. It was modified and upgraded to carry and fire two AGM-114 Hellfire missiles or other munitions. The aircraft entered service in 1995, and saw combat in the war in Afghanistan, Pakistan, the NATO intervention in Bosnia, the NATO bombing of Yugoslavia, the Iraq War, Yemen, the 2011 Libyan civil war, the 2014 intervention in Syria, and Somalia. The USAF describes the Predator as a "Tier II" MALE UAS (medium-altitude, long-endurance unmanned aircraft system). The UAS consists of four aircraft or "air vehicles" with sensors, a ground control station (GCS), and a primary satellite link communication ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
General Atomics
General Atomics (GA) is an American energy and defense corporation headquartered in San Diego, California, that specializes in research and technology development. This includes physics research in support of nuclear fission and nuclear fusion energy. The company also provides research and manufacturing services for remotely operated surveillance aircraft, including its MQ-1 Predator drones, airborne sensors, and advanced electric, electronic, wireless, and laser technologies. History General Atomics was founded on July 18, 1955, in San Diego, California, by Frederic de Hoffmann with assistance from notable physicists Edward Teller and Freeman Dyson. The company was originally part of the General Atomic division of General Dynamics "for harnessing the power of nuclear technologies". GA's first offices were in the General Dynamics facility on Hancock Street in San Diego. GA also used a schoolhouse on San Diego's Barnard Street as its temporary headquarters, which it would l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Unmanned Aerial Vehicles
An unmanned aerial vehicle (UAV) or unmanned aircraft system (UAS), commonly known as a drone, is an aircraft with no human pilot, crew, or passengers onboard, but rather is controlled remotely or is autonomous.De Gruyter Handbook of Drone Warfare; 2024. e-ISBN (PDF) 978-3-11-074203-9.H. Pan; M. Zahmatkesh; F. Rekabi-Bana; F. Arvin; J. HuT-STAR: Time-Optimal Swarm Trajectory Planning for Quadrotor Unmanned Aerial Vehicles IEEE Transactions on Intelligent Transportation Systems, 2025. UAVs were originally developed through the twentieth century for military missions too "dull, dirty or dangerous" for humans, and by the twenty-first, they had become essential assets to most militaries. As control technologies improved and costs fell, their use expanded to many non-military applications. These include aerial photography, area coverage,F. Rekabi-Bana; Hu, J.; T. Krajník; Arvin, F.,Unified Robust Path Planning and Optimal Trajectory Generation for Efficient 3D Area Coverage of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
