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Lihiniya MK I
The Lihiniya MK 1 ( si, ලිහිණියා මාක් 1) is an unmanned aerial vehicle under development by the Sri Lanka Air Force (SLAF) and the Centre for Research and Development (CRD) as an experimental platform to test technologies for its indigenous UAV program. During the civil war the SLAF used UAVs for reconnaissance operations. They used drones from US and Israel such as the IAI Searcher, E.M.I.T Blue Horizon 2 and the RQ-2 Pioneer. In 2010 the Sri Lanka Air Force started to build the prototypes of a new locally made UAV under the supervision of the Air Chief Marshal. Design The aircraft is a HTOL UAV with a high wing, twin-boom tail and a single pusher engine. The Unmanned Aircraft Systems (UAS) developed by the CRD consists of the UAV aircraft, two ground control stations (GCS) and a mobile Advanced Ground Control Station (AGCS). The data from this UAS program is being used for the development of the Lihiniya MK II which will have a range of 100km. Deplo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Unmanned Aerial Vehicle
An unmanned aerial vehicle (UAV), commonly known as a drone, is an aircraft without any human pilot, crew, or passengers on board. UAVs are a component of an unmanned aircraft system (UAS), which includes adding a ground-based controller and a system of communications with the UAV. The flight of UAVs may operate under remote control by a human operator, as remotely-piloted aircraft (RPA), or with various degrees of autonomy, such as autopilot assistance, up to fully autonomous aircraft that have no provision for human intervention. 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.Hu, J.; Bhowmick, P.; Jang, I.; Arvin, F.; Lanzon, A.,A Decentralized Cluster Formation Containment Framework for Multirobot Systems IEEE T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sri Lanka
Sri Lanka (, ; si, ශ්රී ලංකා, Śrī Laṅkā, translit-std=ISO (); ta, இலங்கை, Ilaṅkai, translit-std=ISO ()), formerly known as Ceylon and officially the Democratic Socialist Republic of Sri Lanka, is an island country in South Asia. It lies in the Indian Ocean, southwest of the Bay of Bengal, and southeast of the Arabian Sea; it is separated from the Indian subcontinent by the Gulf of Mannar and the Palk Strait. Sri Lanka shares a maritime border with India and Maldives. Sri Jayawardenepura Kotte is its legislative capital, and Colombo is its List of cities in Sri Lanka, largest city and financial centre. Sri Lanka has a population of around 22 million (2020) and is a multinational state, home to diverse cultures, languages, and ethnicities. The Sinhalese people, Sinhalese are the majority of the nation's population. The Tamils, who are a large minority group, have also played an influential role in the island's history. Other long establ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sri Lanka Air Force
The Sri Lanka Air Force (SLAF) ( si, ශ්රි ලංකා ගුවන් හමුදාව, Śrī Laṃkā guwan hamudāva; ta, இலங்கை விமானப்படை, Ilaṅkai vimāṉappaṭai) is the air arm and the youngest of the Sri Lanka Armed Forces. It was founded in 1951 as the Royal Ceylon Air Force (RCyAF) with the assistance of the Royal Air Force (RAF). The SLAF played a major role throughout the Sri Lankan Civil War. The SLAF operates more than 160 aircraft and has a projected trained strength of 27,400 airmen and 1,300 officers, who are from both regular and reserve service. The Sri Lanka Air Force has expanded to specialise mainly in providing air-support to ground forces, troop landing, and carrying out airstrikes on rebel-held areas in the Northern and Eastern theatres, but is also capable of high- and low-level air defence. The Commander of the Air Force is the professional head of the Sri Lanka Air Force who holds the rank Air Marsh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Centre For Research And Development (Sri Lanka)
Centre for Defence Research and Development (CDRD) is a Sri Lankan Research and Development (R&D) institute under the Ministry of Defence responsible for the development technology for the Armed Forces of Sri Lanka. The CDRD cooperates with various branches of the military as well as other entities and is engaged in the development of both military and civilian technologies. History During the Sri Lankan Civil War the separatist militants of the Liberation Tigers of Tamil Eelam made extensive use of Claymore mines and improvised explosive devices which were often detonated wirelessly and the Sri Lankan government was finding it hard to procure enough jammers from international markets. Thus the CDRD was founded in 2006 at the Panagoda cantonment consisting of a group of army personnel working together with engineering faculties of various universities. These allowed to both disrupt the signals as well as detect and detonate mines planted by the LTTE. known as the K3 Jammer the in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lihiniya MK II
Lihiniya MK II ( si, ලිහිණියා මාක් 2) is a medium range unmanned aerial vehicle developed by the Sri Lanka Air Force (SLAF) and the Centre for Research and Development (CRD) as a tactical UAV system for the national defence requirements. Design The aircraft is a HTOL UAV with a high wing, twin-boom tail and a single pusher engine with an auto pilot system. University of Moratuwa (''Vidyaayev Sharvadhanam'') , motto_lang = Sanskrit , mottoeng = Wisdom is all Wealth , established = , type = Public , chancellor = K. K. Y. W. Perera , vice_chancellor = N. ... is tasked with building the Data link of the UAV. UAV equipped with Dual axes Gyro stabilized Day/Night camera with 10X optical zoom with Target Tracking, Geo Location and Motion Tracking. References Post–Cold War military equipment of Sri Lanka Single-engined pusher aircraft {{UAV-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Unmanned Aerial Vehicle
An unmanned aerial vehicle (UAV), commonly known as a drone, is an aircraft without any human pilot, crew, or passengers on board. UAVs are a component of an unmanned aircraft system (UAS), which includes adding a ground-based controller and a system of communications with the UAV. The flight of UAVs may operate under remote control by a human operator, as remotely-piloted aircraft (RPA), or with various degrees of autonomy, such as autopilot assistance, up to fully autonomous aircraft that have no provision for human intervention. 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.Hu, J.; Bhowmick, P.; Jang, I.; Arvin, F.; Lanzon, A.,A Decentralized Cluster Formation Containment Framework for Multirobot Systems IEEE T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IAI Searcher
The IAI Searcher (also known by the Hebrew name מרומית ''Meyromit'' - " Marsh tern", or officially in Israel as the חוגלה ''Hugla'' - " Alectoris") is a reconnaissance UAV developed in Israel in the 1980s. In the following decade, it replaced the IMI Mastiff and IAI Scout UAVs then in service with the Israeli Army. Design The Searcher looks almost identical to the Scout and Pioneer, but is in fact scaled up and is well over twice the size of the Scout. The Searcher is powered by a piston engine. The new design features updated avionics and sensor systems with greater flight endurance as well as increased redundancy for improved survivability. In addition to Israel, the system had been exported and is or was in use by Singapore and Turkey, as well as Thailand, Russia, India, South Korea, and Sri Lanka. Operational deployment More than 100 Searcher IIs are being operated by the Indian Air Force and the Indian Navy. It took part in the large-scale Russian-Belarusia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RQ-2 Pioneer
The AAI RQ-2 Pioneer is an unmanned aerial vehicle (UAV) that had been used by the United States Navy, Marine Corps, and Army, and deployed at sea and on land from 1986 until 2007. Initially tested aboard USS ''Iowa'', the RQ-2 Pioneer was placed aboard s to provide gunnery spotting, its mission evolving into reconnaissance and surveillance, primarily for amphibious forces. It was developed jointly by AAI Corporation and Israel Aircraft Industries. The program grew out of successful testing and field operation of the Tadiran Mastiff UAV by the American and Israeli militaries. Essentially, the Pioneer is an upgraded IAI Scout which was re-engined to accommodate a greater payload by request of the US Navy. To accomplish this, the original "Limbach" two-cylinder two-stroke engine was replaced with a Fichtel & Sachs two-cylinder two-stroke. The Limbach motor used a 71 cm propeller from Propeller Engineering and Duplicating, Inc. of San Clemente, California. The newer, more pow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CTOL
A conventional take-off and landing (CTOL), also known as horizontal take-off and landing (HTOL) is the process whereby conventional fixed-wing aircraft A fixed-wing aircraft is a heavier-than-air flying machine, such as an airplane, which is capable of flight using wings that generate lift caused by the aircraft's forward airspeed and the shape of the wings. Fixed-wing aircraft are distinc ... (such as passenger aircraft) take off and land, involving the use of runways. During takeoff, the aircraft will accelerate along the runway, resting on its wheels, until its takeoff speed is reached, at which point the pilot manipulates the flight controls to make the aircraft pivot around the axis of its main landing gear while still on the ground, this increases the lift from the wings and effects takeoff. During landings, a commercial passenger-carrying aircraft will arrive over the runway while still at flight speed. The landing consists of the final approach phase, th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monoplane
A monoplane is a fixed-wing aircraft configuration with a single mainplane, in contrast to a biplane or other types of multiplanes, which have multiple planes. A monoplane has inherently the highest efficiency and lowest drag of any wing configuration and is the simplest to build. However, during the early years of flight, these advantages were offset by its greater weight and lower manoeuvrability, making it relatively rare until the 1930s. Since then, the monoplane has been the most common form for a fixed-wing aircraft. Characteristics Support and weight The inherent efficiency of the monoplane is best achieved in the cantilever wing, which carries all structural forces internally. However, to fly at practical speeds the wing must be made thin, which requires a heavy structure to make it strong and stiff enough. External bracing can be used to improve structural efficiency, reducing weight and cost. For a wing of a given size, the weight reduction allows it to fly slower a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Twin-boom Aircraft
A twin-boom aircraft is characterised by two longitudinal booms (extended nacelle-like bodies). The booms may contain ancillary items such as fuel tanks and/or provide a supporting structure for other items. Typically, twin tailbooms support the tail surfaces, although on some types such as the Rutan Model 72 Grizzly the booms run forward of the wing. The twin-boom configuration is distinct from twin-fuselage designs in that it retains a central fuselage. Design The twin-boom configuration is distinct from the twin fuselage type in having a separate, short fuselage housing the pilot and payload. It has been adopted to resolve various design problems with the conventional empennage for aircraft in different roles. Engine mounting For a single engine with a propeller in the pusher configuration or a jet engine, a conventional tail requires the propeller or exhaust to be moved far aft, requiring either a very long driveshaft or jet pipe and thus reducing propulsive efficien ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pusher Configuration
In an aircraft with a pusher configuration (as opposed to a tractor configuration), the propeller(s) are mounted behind their respective engine(s). Since a pusher propeller is mounted behind the engine, the drive shaft is in compression in normal operation. Pusher configuration describes this specific (propeller or ducted fan) thrust device attached to a craft, either aerostat (airship) or aerodyne (aircraft, WIG, paramotor, rotorcraft) or others types such as hovercraft, airboat and propeller-driven snowmobiles. "Pusher configuration" also describes the layout of a fixed-wing aircraft in which the thrust device has a pusher configuration. This kind of aircraft is commonly called a pusher. Pushers have been designed and built in many different layouts, some of them quite radical. History The rubber-powered "Planophore", designed by Alphonse Pénaud in 1871, was an early successful model aircraft with a pusher propeller. Many early aircraft (especially biplane ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
