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ASRAD-HELLAS
ASRAD Hellas is an advanced short range air defense system developed by Rheinmetall. The Greek army has acquired 54 vehicle-mounted STINGER ASRAD Hellas (German design). The ASRAD Hellas is configured to enable reliable target detection, identification, and engagement during day or night under all possible conditions of visibility and weather. Due to its modularity and flexibility, the ASRAD Hellas fire unit embodies significant growth potential, permitting it to operate with passive and active surveillance sensors such as infrared search and track devices, and external surveillance 2D or 3D radars. The system is operated by a two-man team, composed of a weapons operator and a driver. Advantages *Fast deployment (less than five minutes after unloading, e.g. from a helicopter) *Fast reaction (no more than 10 seconds) *Reliable multi-target capability *High operational availability *Automatic system operation mode (limitation of human errors) *Ease of operation, training and ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ASRAD-R
ASRAD-R (Advanced Short Range Air Defence System - RBS) is a vehicle-mounted short-range air defense system, designed by a joint German-Swedish effort between Rheinmetall and Saab Bofors Dynamics. The system is modular and can be mounted on almost any wheeled or tracked vehicle. It has for instance been demonstrated mounted on an M113 armoured personnel carrier. Normally the same vehicle carries both the main sensor and the main effector of the system. However, thanks to the systems modularity, it can also be delivered in a split configuration with one vehicle carrying the main sensor and several other vehicles carrying the missiles. The main sensor is Saab's (formerly Ericsson Microwave System) HARD AESA air search 3D radar with an instrumented range of 20 km or an Infra-red search and track, depending upon the customer's specifications. The effector is the latest version of the Saab Bofors Dynamics RBS 70 surface-to-air missile, called Bolide. The missile is a laser ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Air Defence
Anti-aircraft warfare, counter-air or air defence forces is the battlespace response to aerial warfare, defined by NATO as "all measures designed to nullify or reduce the effectiveness of hostile air action".AAP-6 It includes surface based, subsurface ( submarine launched), and air-based weapon systems, associated sensor systems, command and control arrangements, and passive measures (e.g. barrage balloons). It may be used to protect naval, ground, and air forces in any location. However, for most countries, the main effort has tended to be homeland defence. NATO refers to airborne air defence as counter-air and naval air defence as anti-aircraft warfare. Missile defence is an extension of air defence, as are initiatives to adapt air defence to the task of intercepting any projectile in flight. In some countries, such as Britain and Germany during the Second World War, the Soviet Union, and modern NATO and the United States, ground-based air defence and air defence aircraf ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Human Error
Human error refers to something having been done that was " not intended by the actor; not desired by a set of rules or an external observer; or that led the task or system outside its acceptable limits".Senders, J.W. and Moray, N.P. (1991) Human Error: Cause, Prediction, and Reduction'. Lawrence Erlbaum Associates, p.25. . Human error has been cited as a primary cause contributing factor in disasters and accidents in industries as diverse as nuclear power (e.g., the Three Mile Island accident), aviation (see pilot error), space exploration (e.g., the Space Shuttle Challenger disaster and Space Shuttle Columbia disaster), and medicine (see medical error). Prevention of human error is generally seen as a major contributor to reliability and safety of (complex) systems. Human error is one of the many contributing causes of risk events. Definition Human error refers to something having been done that was "not intended by the actor; not desired by a set of rules or an external observer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
21st-century Surface-to-air Missiles
The 1st century was the century spanning AD 1 ( I) through AD 100 ( C) according to the Julian calendar. It is often written as the or to distinguish it from the 1st century BC (or BCE) which preceded it. The 1st century is considered part of the Classical era, epoch, or historical period. The 1st century also saw the appearance of Christianity. During this period, Europe, North Africa and the Near East fell under increasing domination by the Roman Empire, which continued expanding, most notably conquering Britain under the emperor Claudius (AD 43). The reforms introduced by Augustus during his long reign stabilized the empire after the turmoil of the previous century's civil wars. Later in the century the Julio-Claudian dynasty, which had been founded by Augustus, came to an end with the suicide of Nero in AD 68. There followed the famous Year of Four Emperors, a brief period of civil war and instability, which was finally brought to an end by Vespasian, ninth Roman emperor, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wiesel AWC
The Wiesel Armoured Weapons Carrier (AWC) is a German light air-transportable armoured fighting vehicle, more specifically a lightly armoured weapons carrier, produced by Rheinmetall. It is quite similar to historical scouting tankettes in size, form and function, and is the only true modern tankette in use in Western Europe. The Wiesel has been used in several of the Bundeswehr's missions abroad (UNOSOM II, IFOR, SFOR, KFOR, TFH, ISAF). History The Wiesel was developed for the German Army to meet a requirement for an air-transportable light armored vehicle for use by its airborne troops, as the infantry of the German Bundeswehr, especially airborne infantry, were considered unprepared to successfully fight enemy main battle tanks (MBT) in the 1970s. The requirements were that the vehicle should fit in common NATO transport planes and could eventually be air-dropped. It should be able to fight infantry as well as enemy tanks or aircraft. Porsche produced some prototypes of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flight Dynamics
Flight dynamics in aviation and spacecraft, is the study of the performance, stability, and control of vehicles flying through the air or in outer space. It is concerned with how forces acting on the vehicle determine its velocity and attitude with respect to time. For a fixed-wing aircraft, its changing orientation with respect to the local air flow is represented by two critical angles, the angle of attack of the wing ("alpha") and the angle of attack of the vertical tail, known as the sideslip angle ("beta"). A sideslip angle will arise if an aircraft yaws about its centre of gravity and if the aircraft sideslips bodily, i.e. the centre of gravity moves sideways.Flightwise - Volume 2 - Aircraft Stability And Control, Chris Carpenter 1997, Airlife Publishing Ltd., , p.145 These angles are important because they are the principal source of changes in the aerodynamic forces and moments applied to the aircraft. Spacecraft flight dynamics involve three main forces: propulsive (ro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Computer Network
A computer network is a set of computers sharing resources located on or provided by network nodes. The computers use common communication protocols over digital interconnections to communicate with each other. These interconnections are made up of telecommunication network technologies, based on physically wired, optical, and wireless radio-frequency methods that may be arranged in a variety of network topologies. The nodes of a computer network can include personal computers, servers, networking hardware, or other specialised or general-purpose hosts. They are identified by network addresses, and may have hostnames. Hostnames serve as memorable labels for the nodes, rarely changed after initial assignment. Network addresses serve for locating and identifying the nodes by communication protocols such as the Internet Protocol. Computer networks may be classified by many criteria, including the transmission medium used to carry signals, bandwidth, communications pro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Logistics
Logistics is generally the detailed organization and implementation of a complex operation. In a general business sense, logistics manages the flow of goods between the point of origin and the point of consumption to meet the requirements of customers or corporations. The resources managed in logistics may include tangible goods such as materials, equipment, and supplies, as well as food and other consumable items. In military science, logistics is concerned with maintaining army supply lines while disrupting those of the enemy, since an armed force without resources and transportation is defenseless. Military logistics was already practiced in the ancient world and as the modern military has a significant need for logistics solutions, advanced implementations have been developed. In military logistics, logistics officers manage how and when to move resources to the places they are needed. Logistics management is the part of supply chain management and supply chain engine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Remote Control
In electronics, a remote control (also known as a remote or clicker) is an electronic device used to operate another device from a distance, usually wirelessly. In consumer electronics, a remote control can be used to operate devices such as a television set, DVD player or other home appliance. A remote control can allow operation of devices that are out of convenient reach for direct operation of controls. They function best when used from a short distance. This is primarily a convenience feature for the user. In some cases, remote controls allow a person to operate a device that they otherwise would not be able to reach, as when a garage door opener is triggered from outside. Early television remote controls (1956–1977) used ultrasonic tones. Present-day remote controls are commonly consumer infrared devices which send digitally-coded pulses of infrared radiation. They control functions such as power, volume, channels, playback, track change, heat, fan speed, and vario ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Helicopter
A helicopter is a type of rotorcraft in which lift and thrust are supplied by horizontally spinning rotors. This allows the helicopter to take off and land vertically, to hover, and to fly forward, backward and laterally. These attributes allow helicopters to be used in congested or isolated areas where fixed-wing aircraft and many forms of STOL (Short TakeOff and Landing) or STOVL (Short TakeOff and Vertical Landing) aircraft cannot perform without a runway. In 1942, the Sikorsky R-4 became the first helicopter to reach full-scale production.Munson 1968.Hirschberg, Michael J. and David K. Dailey"Sikorsky". ''US and Russian Helicopter Development in the 20th Century'', American Helicopter Society, International. 7 July 2000. Although most earlier designs used more than one main rotor, the configuration of a single main rotor accompanied by a vertical anti-torque tail rotor (i.e. unicopter, not to be confused with the single-blade monocopter) has become the most comm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
FIM-92 Stinger
The FIM-92 Stinger is an American man-portable air-defense system (MANPADS) that operates as an infrared homing surface-to-air missile (SAM). It can be adapted to fire from a wide variety of ground vehicles, and from helicopters as the Air-to-Air Stinger (ATAS). It entered service in 1981 and is used by the militaries of the United States and 29 other countries. It is principally manufactured by Raytheon Missiles & Defense and is produced under license by Airbus Defence and Space in Germany and by Roketsan in Turkey. Description The FIM-92 Stinger is a passive surface-to-air missile that can be shoulder-fired by a single operator (although standard military procedure calls for two operators, team chief and gunner). The Stinger was intended to supplant the FIM-43 Redeye system, the principal difference being that, unlike the Redeye, the Stinger can acquire the target when the target approaches the operator, giving much more time to acquire and destroy the target. The FIM-92B m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
