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CBT BQM-1BR
The BQM-1BR was a Brazilian unmanned aerial vehicle designed and built locally by Companhia Brasileira de Tratores for several kinds of sensing roles.Taylor 1986, p. 810 Design and development The BQM-1 BR was the first remotely controlled vehicle built in Brazil by the Companhia Brasileira de Tratores (CBT) in partnership with the Department of Aerospace Science and Technology. It was developed for military and civilian use, with versions for reconnaissance, attack, and crop-dusting. The wings had 3° dihedral. 4° of incidence, and were swept 33° over most of the span, increasing to 55" the root. Conventional semi-monocoque fuselage, circular root cross-section. Fixed incidence caudal plane cantilever, with 5°.dihedral and 30° leading edge sweep. It used a turbojet engine produced nationally by CBT, mounted in a nacelle on top of the rear fuselage at the base of the fin. A first batch of 20 units of this model were planned by the Brazilian Air Force "Wings that protect ... [...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] |
Cantilever
A cantilever is a rigid structural element that extends horizontally and is supported at only one end. Typically it extends from a flat vertical surface such as a wall, to which it must be firmly attached. Like other structural elements, a cantilever can be formed as a beam, plate, truss, or slab. When subjected to a structural load at its far, unsupported end, the cantilever carries the load to the support where it applies a shear stress and a bending moment. Cantilever construction allows overhanging structures without additional support. In bridges, towers, and buildings Cantilevers are widely found in construction, notably in cantilever bridges and balconies (see corbel). In cantilever bridges, the cantilevers are usually built as pairs, with each cantilever used to support one end of a central section. The Forth Bridge in Scotland is an example of a cantilever truss bridge. A cantilever in a traditionally timber framed building is called a jetty or forebay. In t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Unmanned Military Aircraft Of Brazil
An uncrewed vehicle or unmanned vehicle is a vehicle without a person on board. Uncrewed vehicles can either be under telerobotic control—remote controlled or remote guided vehicles—or they can be autonomously controlled—autonomous vehicles—which are capable of sensing their environment and navigating on their own. Types There are different types of uncrewed vehicles: * Remote control vehicle (RC), such as radio-controlled cars or radio-controlled aircraft * Unmanned ground vehicle (UGV), such as the autonomous cars, or unmanned combat vehicles (UCGV) * Unmanned ground and aerial vehicle (UGAV), unmanned vehicle with hybrid locomotion methods * Unmanned aerial vehicle (UAV), unmanned aircraft commonly known as "drone" ** Unmanned combat aerial vehicle (UCAV) **Medium-altitude long-endurance unmanned aerial vehicle (MALE) ** Miniature UAV (SUAV) ** Delivery drone ** Micro air vehicle (MAV) ** Target drone * Autonomous spaceport drone ship * Uncrewed surface vehicle (USV) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Abandoned Military Aircraft Projects Of Brazil
Abandon, abandoned, or abandonment may refer to: Common uses * Abandonment (emotional), a subjective emotional state in which people feel undesired, left behind, insecure, or discarded * Abandonment (legal), a legal term regarding property ** Child abandonment, the extralegal abandonment of children ** Lost, mislaid, and abandoned property, legal status of property after abandonment and rediscovery * Abandonment (mysticism) Art, entertainment, and media Film * ''Abandon'' (film), a 2002 film starring Katie Holmes * ''Abandoned'' (1949 film), starring Dennis O'Keefe * ''Abandoned'' (1955 film), the English language title of the Italian war film ''Gli Sbandati'' * ''Abandoned'' (2001 film), a Hungarian film * ''Abandoned'' (2010 film), starring Brittany Murphy * ''Abandoned'' (2015 film), a television movie about the shipwreck of the ''Rose-Noëlle'' in 1989 * ''Abandoned'' (2022 film), starring Emma Roberts * ''The Abandoned'' (1945 film), a 1945 Mexican film * ''The Aband ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aircraft First Flown In 1983
An aircraft is a vehicle that is able to fly by gaining support from the air. It counters the force of gravity by using either static lift or by using the dynamic lift of an airfoil, or in a few cases the downward thrust from jet engines. Common examples of aircraft include airplanes, helicopters, airships (including blimps), gliders, paramotors, and hot air balloons. The human activity that surrounds aircraft is called ''aviation''. The science of aviation, including designing and building aircraft, is called ''aeronautics.'' Crewed aircraft are flown by an onboard pilot, but unmanned aerial vehicles may be remotely controlled or self-controlled by onboard computers. Aircraft may be classified by different criteria, such as lift type, aircraft propulsion, usage and others. History Flying model craft and stories of manned flight go back many centuries; however, the first manned ascent — and safe descent — in modern times took place by larger hot-a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
London, UK
London is the capital and largest city of England and the United Kingdom, with a population of just under 9 million. It stands on the River Thames in south-east England at the head of a estuary down to the North Sea, and has been a major settlement for two millennia. The City of London, its ancient core and financial centre, was founded by the Romans as '' Londinium'' and retains its medieval boundaries.See also: Independent city § National capitals The City of Westminster, to the west of the City of London, has for centuries hosted the national government and parliament. Since the 19th century, the name "London" has also referred to the metropolis around this core, historically split between the counties of Middlesex, Essex, Surrey, Kent, and Hertfordshire, which largely comprises Greater London, governed by the Greater London Authority.The Greater London Authority consists of the Mayor of London and the London Assembly. The London Mayor is distinguished from the L ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jane's All The World's Aircraft
''Jane's All the World's Aircraft'' (now stylized Janes) is an aviation annual publication founded by John Frederick Thomas Jane in 1909. Long issued by Sampson Low, Marston in Britain (with various publishers in the U.S.), it has been published by Janes Information Services since 1989/90. The first volume's title referred to "airships" while all since have referenced "aircraft". After World War I, the format of the book shifted from an oblong ("landscape") format to the present "portrait" orientation. With the 1993/94 edition, the book was divided into two volumes that continue to appear annually. The main volume focuses on aircraft in production while the second book describes older aircraft and upgrades, both military and civil. While 2009 was the centennial year of ''Jane's All the World's Aircraft'', 2013 marked the 100th edition—the disparity due to disruptions (chiefly with volumes covering two years) during the two World Wars. Starting in 1969, Arco (New York) issued the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jet-engine
A jet engine is a type of reaction engine discharging a fast-moving jet (fluid), jet of heated gas (usually air) that generates thrust by jet propulsion. While this broad definition can include Rocket engine, rocket, Pump-jet, water jet, and hybrid propulsion, the term typically refers to an internal combustion airbreathing jet engine such as a turbojet, turbofan, ramjet, or pulse jet engine, pulse jet. In general, jet engines are internal combustion engines. Airbreathing jet engines typically feature a Axial compressor, rotating air compressor powered by a turbine, with the leftover power providing thrust through the propelling nozzle—this process is known as the Brayton cycle, Brayton thermodynamic cycle. Jet aircraft use such engines for long-distance travel. Early jet aircraft used turbojet engines that were relatively inefficient for subsonic flight. Most modern subsonic jet aircraft use more complex High-bypass turbofan, high-bypass turbofan engines. They give higher ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Single-stage-to-orbit
A single-stage-to-orbit (SSTO) vehicle reaches orbit from the surface of a body using only propellants and fluids and without expending tanks, engines, or other major hardware. The term usually, but not exclusively, refers to reusable vehicles. To date, no Earth-launched SSTO launch vehicles have ever been flown; orbital launches from Earth have been performed by either fully or partially expendable multi-stage rockets. The main projected advantage of the SSTO concept is elimination of the hardware replacement inherent in expendable launch systems. However, the non-recurring costs associated with design, development, research and engineering (DDR&E) of reusable SSTO systems are much higher than expendable systems due to the substantial technical challenges of SSTO, assuming that those technical issues can in fact be solved. SSTO vehicles may also require a significantly higher degree of regular maintenance. It is considered to be marginally possible to launch a single-stage- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
La Década Perdida
"La Década Perdida" ("The Lost Decade") of Latin America is a Spanish term used to describe the economic crisis suffered in Latin America during the 1980s, which continued for some countries into the next decade. In general, the crisis was composed of unpayable external debts, taxes, and volatile inflation and exchange rates, which in the majority of the countries in the region were fixed. Overview During the 1970s, the rise in prices of raw materials (primarily oil) and the decrease in the value of the dollar caused US dollars to flow into Latin America, a region that then debated between an industrial model directed from the state or a market based model. In 1980, the decreased price of raw materials and the rise of interest rates in the industrialized countries generated a lack of resources, which provoked a massive depreciation of exchange rates, appreciating the real interest rate on the debt, a situation made worse by the presence of excessively large bureaucraci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brazilian Air Force
"Wings that protect the country" , colours = , colours_label = , march = Hino dos Aviadores , mascot = , anniversaries = 22 May (anniversary) 22 April (fighter aviation day) , equipment = , equipment_label = , battles = Contestado War Lieutenants Revolts Constitutionalist War World War IILobster WarTrês Passos GuerrillaCaparaó GuerrillaAraguaia Guerrilla War Operation Traira , decorations = , battle_honours = , battle_honours_label = , flying_hours = , website = , commander1 = President Lula da Silva , commander1_label = Commander-in-Chief , commander2 = Paulo Sérgio Nogueira de Oliveira , commander2_label = Minister of Defence , commander3 = Carl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
