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Nirbhay
Nirbhay (meaning ''Dauntless/Fearless'') is a long range, all-weather, subsonic cruise missile designed and developed in India by the Aeronautical Development Establishment (ADE) which is under Defence Research and Development Organisation (DRDO). The missile can be launched from multiple platforms and is capable of carrying conventional and nuclear warheads. It is currently deployed in limited numbers in Line of Actual Control (LAC) during standoff with China. Design Nirbhay is powered by a solid rocket booster for take off which is developed by Advanced Systems Laboratory (ASL). Upon reaching the required velocity and height, a turbofan engine in the missile takes over for further propulsion. The missile is guided by an inertial navigation system developed by Research Centre Imarat (RCI) and a radio altimeter for the height determination. The missile has a ring laser gyroscope (RLG) based guidance, control and navigation system. It also has a microelectromechanical system (M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nirbhay Missiles During Republic Day Parade 2018
Nirbhay (meaning ''Dauntless/Fearless'') is a long range, all-weather, Cruise missile#Long-range subsonic, subsonic cruise missile designed and developed in India by the Aeronautical Development Establishment (ADE) which is under Defence Research and Development Organisation (DRDO). The missile can be launched from multiple platforms and is capable of carrying conventional and nuclear warheads. It is currently deployed in limited numbers in Line of Actual Control (LAC) during standoff with China. Design Nirbhay is powered by a solid rocket booster for take off which is developed by Advanced Systems Laboratory (ASL). Upon reaching the required velocity and height, a turbofan engine in the missile takes over for further propulsion. The missile is guided by an inertial navigation system developed by Research Centre Imarat (RCI) and a radio altimeter for the height determination. The missile has a ring laser gyroscope (RLG) based guidance, control and navigation system. It also has ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cruise Missile
A cruise missile is a guided missile used against terrestrial or naval targets that remains in the atmosphere and flies the major portion of its flight path at approximately constant speed. Cruise missiles are designed to deliver a large warhead over long distances with high precision. Modern cruise missiles are capable of travelling at high subsonic, supersonic, or hypersonic speeds, are self-navigating, and are able to fly on a non-ballistic, extremely low-altitude trajectory. History The idea of an "aerial torpedo" was shown in the British 1909 film ''The Airship Destroyer'' in which flying torpedoes controlled wirelessly are used to bring down airships bombing London. In 1916, the American aviator Lawrence Sperry built and patented an "aerial torpedo", the Hewitt-Sperry Automatic Airplane, a small biplane carrying a TNT charge, a Sperry autopilot and a barometric altitude control. Inspired by the experiments, the United States Army developed a similar flying bomb cal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cruise Missile
A cruise missile is a guided missile used against terrestrial or naval targets that remains in the atmosphere and flies the major portion of its flight path at approximately constant speed. Cruise missiles are designed to deliver a large warhead over long distances with high precision. Modern cruise missiles are capable of travelling at high subsonic, supersonic, or hypersonic speeds, are self-navigating, and are able to fly on a non-ballistic, extremely low-altitude trajectory. History The idea of an "aerial torpedo" was shown in the British 1909 film ''The Airship Destroyer'' in which flying torpedoes controlled wirelessly are used to bring down airships bombing London. In 1916, the American aviator Lawrence Sperry built and patented an "aerial torpedo", the Hewitt-Sperry Automatic Airplane, a small biplane carrying a TNT charge, a Sperry autopilot and a barometric altitude control. Inspired by the experiments, the United States Army developed a similar flying bomb cal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tata LPTA
The Tata LPTA is a military truck family developed and produced by Indian automobile manufacturer Tata Motors. The trucks are available in 4×4,6×6,8×8,10×10 and 12×12 configurations. With extreme off-road capabilities, they are proposed as replacement for Czech-designed Tatra trucks currently used by Indian armed forces. History The Indian Army is one of the biggest users of Tatra trucks in the world with over 10,000 trucks of various types in service. Because of their high-operational flexibility and functional adaptability they formed the backbone of army's tactical & mobilisation capability. These trucks were license-produced in India by BEML, a public sector company. Following the Tatra bribery scam, a ban was imposed on Tatra and the supply of these trucks stopped. Thus, the development of multi axle tactical trucks was started by Tata to meet Army's requirements. Design The vehicles have cab over engine modular design. The cab can hold two crew and four passengers. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
GTRE
Gas Turbine Research Establishment (GTRE) is a laboratory of the Defence Research and Development Organisation (DRDO). Located in Bengaluru, its primary function is research and development of aero gas-turbines for military aircraft. As a spin-off effect, GTRE has been developing marine gas-turbines also. It was initially known as GTRC (Gas Turbine Research Centre), created in 1959 in No.4 BRD Air Force Station, Kanpur, Uttar Pradesh. In November 1961 it was brought under DRDO, renamed to GTRE and moved to Bengaluru, Karnataka. Products Principal achievements of Gas Turbine Research Establishment include: * Design and development of India's "first centrifugal type 10 kN thrust engine" between 1959-61. * Design and development of a "1700K reheat system" for the Orpheus 703 engine to boost its power. The redesigned system was certified in 1973. * Successful upgrade of the reheat system of the Orpheus 703 to 2000K. * Improvement of the Orpheus 703 engine by replacing "the front s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aeronautical Development Establishment
Aeronautical Development Establishment is a laboratory of India's Defence Research and Development Organisation. Located in Bangalore, its primary function is research and development in the field of military aviation. Recent successful projects include Lakshya (an aerial target), Nishant (a reconnaissance unmanned aerial vehicle), Nirbhay Nirbhay (meaning ''Dauntless/Fearless'') is a long range, all-weather, subsonic cruise missile designed and developed in India by the Aeronautical Development Establishment (ADE) which is under Defence Research and Development Organisation (DR ...(a subsonic cruise missile), flight simulators for (LCA, Ajit, Kiran, Mig-21) and avionics packages for Tejas-LCA (display and FCC). It earlier worked on Sparrow (mini-uav) and Ulka (aerial target). History Aeronautical Development Establishment (ADE) was established in January 1959 at High Grounds, Bangalore. Technology divisions References External links {{DRDO Laboratories Defence ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inertial Navigation System
An inertial navigation system (INS) is a navigation device that uses motion sensors (accelerometers), rotation sensors ( gyroscopes) and a computer to continuously calculate by dead reckoning the position, the orientation, and the velocity (direction and speed of movement) of a moving object without the need for external references. Often the inertial sensors are supplemented by a barometric altimeter and sometimes by magnetic sensors ( magnetometers) and/or speed measuring devices. INSs are used on mobile robots and on vehicles such as ships, aircraft, submarines, guided missiles, and spacecraft. Other terms used to refer to inertial navigation systems or closely related devices include inertial guidance system, inertial instrument, inertial measurement unit (IMU) and many other variations. Older INS systems generally used an inertial platform as their mounting point to the vehicle and the terms are sometimes considered synonymous. Overview Inertial navigation is a self-cont ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ring Laser Gyroscope
A ring laser gyroscope (RLG) consists of a ring laser having two independent counter-propagating resonant modes over the same path; the difference in phase is used to detect rotation. It operates on the principle of the Sagnac effect which shifts the nulls of the internal standing wave pattern in response to angular rotation. Interference between the counter-propagating beams, observed externally, results in motion of the standing wave pattern, and thus indicates rotation. Description The first experimental ring laser gyroscope was demonstrated in the US by Macek and Davis in 1963. Various organizations worldwide subsequently developed ring-laser technology further. Many tens of thousands of RLGs are operating in inertial navigation systems and have established high accuracy, with better than 0.01°/hour bias uncertainty, and mean time between failures in excess of 60,000 hours. Ring laser gyroscopes can be used as the stable elements (for one degree of freedom each) in an ine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Research Centre Imarat
Research Centre Imarat (RCI) is a DRDO laboratory located in Hyderabad, Telangana. The lab is responsible for Research and Development of Missile Systems, Guided Weapons and advanced Avionics for Indian Armed Forces. It was established by APJ Abdul Kalam Avul Pakir Jainulabdeen Abdul Kalam (; 15 October 193127 July 2015) was an Indian aerospace scientist and statesman who served as the 11th President of India from 2002 to 2007. He was born and raised in Rameswaram, Tamil Nadu and studied phy ... in 1988. It is currently headed by U Raja Babu. Background The Research Centre Imarat is a global frontrunner in developing avionics and navigation systems for missiles. RCI is the leading laboratory which has successfully spearheaded the Indo-Israel joint development Medium Range Surface to Air Missile (MRSAM) programme and had hat-trick success in its first three consecutive missions. References Defence Research and Development Organisation laboratories Research institu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turbofan
The turbofan or fanjet is a type of airbreathing jet engine that is widely used in aircraft engine, aircraft propulsion. The word "turbofan" is a portmanteau of "turbine" and "fan": the ''turbo'' portion refers to a gas turbine engine which achieves mechanical energy from combustion, and the ''fan'', a ducted fan that uses the mechanical energy from the gas turbine to force air rearwards. Thus, whereas all the air taken in by a turbojet passes through the combustion chamber and turbines, in a turbofan some of that air bypasses these components. A turbofan thus can be thought of as a turbojet being used to drive a ducted fan, with both of these contributing to the thrust. The ratio of the mass-flow of air bypassing the engine core to the mass-flow of air passing through the core is referred to as the bypass ratio. The engine produces thrust through a combination of these two portions working together; engines that use more Propelling nozzle, jet thrust relative to fan thrust are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Line Of Actual Control
The Line of Actual Control (LAC), in the context of the Sino-Indian border dispute, is a notional demarcation lineAnanth KrishnanLine of Actual Control , India-China: the line of actual contest, 13 June 2020: "In contrast, the alignment of the LAC has never been agreed upon, and it is has neither been delineated nor demarcated. There is no official map in the public domain that depicts the LAC. It can best be thought of as an idea, reflecting the territories that are, at present, under the control of each side, pending a resolution of the boundary dispute." that separates Indian-controlled territory from Chinese-controlled territory. The concept was introduced by Chinese premier Zhou Enlai in a 1959 letter to Jawaharlal Nehru as the "line up to which each side exercises actual control", but rejected by Nehru as being incoherent. Subsequently the term came to refer to the line formed after the 1962 Sino-Indian War. The LAC is different from the borders claimed by each c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Imaging Infrared
Infrared thermography (IRT), thermal video and/or thermal imaging, is a process where a thermal camera captures and creates an image of an object by using infrared radiation emitted from the object in a process, which are examples of infrared imaging science. Thermographic cameras usually detect radiation in the long-infrared range of the electromagnetic spectrum (roughly 9,000–14,000 nanometers or 9–14 μm) and produce images of that radiation, called thermograms. Since infrared radiation is emitted by all objects with a temperature above absolute zero according to the black body radiation law, thermography makes it possible to see one's environment with or without visible illumination. The amount of radiation emitted by an object increases with temperature; therefore, thermography allows one to see variations in temperature. When viewed through a thermal imaging camera, warm objects stand out well against cooler backgrounds; humans and other warm-blooded animals become ea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
