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SKNL PRz PR5 Wiewiór Plus
SKNL PRz PR-5 ''Wiewiór'' plus is a Polish unmanned aerial vehicle (UAV) being developed by students of Rzeszów University of Technology ( pl, Studenckie Koło Naukowe Lotników, Politechnika Rzeszowska, SKNL PRz), beginning in January 2006. Fifth of the series, following PR-1 ''Szpion'', PR-2 ''Gacek'', PR-3, PR-4 (SAE lifter) and PR-5 ''Wiewiór'', it is an experimental reconnaissance aircraft. It has carbon fiber and kevlar monocoque structure with aluminium ferrules. Power plants are two electric brushless three-phase motors. Rescue System Different types of parachutes used in PR-5 Wiewiór plus allow to control descent velocity depending on airplane weight and expected windspeed. Two basic types: ring and cruciform parachutes in various sizes are available; all use pilot chute pull-out deployment. Specifications General characteristics * Length: 1.4 m * Wingspan: 2.14 m * Height: 0.3 m * Wing area: 0.53 m² * Empty: 2.5 kg * Maximum takeoff: 5.5 kg * Powerplan ... [...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 Tr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rzeszów University Of Technology
Rzeszów University of Technology, also known as Rzeszów Polytechnic ( pl, Politechnika Rzeszowska im. Ignacego Łukasiewicza, PRz) or Ignacy Łukasiewicz University of Technology, is a state-run institution of higher education in Rzeszów, Poland. According to international ranking by the ''Webometrics Ranking of World Universities'' published by the Spanish institute ''Consejo Superior de Investigaciones Científicas'', the university takes 14th place among the technical universities within the country and, on the world scale, number 1,173 within all listed universities. Rzeszów Polytechnic began as a vocational school of engineering on the initiative of employees of the airplane factory PZL WS-2 (branch of PZL State Aviation Works) in 1951. It developed into a full-fledged university gradually between 1952 and 1974. Since 1976, it has operated the leading Aviation Training Centre on the outskirts of Rzeszow. The university is the only polytechnic in the country that awards ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rzeszów
Rzeszów ( , ; la, Resovia; yi, ריישא ''Raisha'')) is the largest city in southeastern Poland. It is located on both sides of the Wisłok River in the heartland of the Sandomierz Basin. Rzeszów has been the capital of the Subcarpathian Voivodeship (province) since 1 January 1999, and is also the county seat, seat of Rzeszów County. The history of Rzeszów dates back to the Middle Ages. It received city rights and privileges from King Casimir III the Great in 1354. Local trade routes connecting Europe with the Middle East and the Ottoman Empire resulted in the city's early prosperity and development. In the 16th century, Rzeszów had a connection with Gdańsk and the Baltic Sea. It also experienced growth in commerce and craftsmanship, especially under local Szlachta, rulers and noblemen. Following the Partitions of Poland, Rzeszów was annexed by the Austrian Empire and did not regain its position until it Second Polish Republic, returned to Poland after World War I. Rze ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American English
American English, sometimes called United States English or U.S. English, is the set of variety (linguistics), varieties of the English language native to the United States. English is the Languages of the United States, most widely spoken language in the United States and in most circumstances is the de facto common language used in government, education and commerce. Since the 20th century, American English has become the most influential form of English worldwide. American English varieties include many patterns of pronunciation, vocabulary, grammar and particularly spelling that are unified nationwide but distinct from other English dialects around the world. Any North American English, American or Canadian accent (sociolinguistics), accent perceived as lacking noticeably local, ethnic or cultural markedness, markers is popularly called General American, "General" or "Standard" American, a fairly uniform dialect continuum, accent continuum native to certain regions of the U ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reconnaissance Aircraft
A reconnaissance aircraft (colloquially, a spy plane) is a military aircraft designed or adapted to perform aerial reconnaissance with roles including collection of imagery intelligence (including using photography), signals intelligence, as well as measurement and signature intelligence. Modern technology has also enabled some aircraft and UAVs to carry out real-time surveillance in addition to general intelligence gathering. Before the development of devices such as radar, military forces relied on reconnaissance aircraft for visual observation and scouting of enemy movement. An example is the PBY Catalina maritime patrol flying boat used by the Allies in World War II: a flight of U.S. Navy Catalinas spotted part of the Japanese fleet approaching Midway Island, beginning the Battle of Midway. History Prior to the 20th century machines for powered and controllable flight were not available to military forces, but some attempts were made to use lighter than air craft ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brushless DC Electric Motor
A brushless DC electric motor (BLDC motor or BL motor), also known as an electronically commutated motor (ECM or EC motor) or synchronous DC motor, is a synchronous motor using a direct current (DC) electric power supply. It uses an electronic controller to switch DC currents to the motor windings producing magnetic fields which effectively rotate in space and which the permanent magnet rotor follows. The controller adjusts the phase and amplitude of the DC current pulses to control the speed and torque of the motor. This control system is an alternative to the mechanical commutator (brushes) used in many conventional electric motors. The construction of a brushless motor system is typically similar to a permanent magnet synchronous motor (PMSM), but can also be a switched reluctance motor, or an induction (asynchronous) motor. They may also use neodymium magnets and be outrunners (the stator is surrounded by the rotor), inrunners (the rotor is surrounded by the stator), or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PR5 WiewiórPlus Parachute
{{Letter-NumberCombDisambig ...
PR5 or ''variation'' may refer to: Places * ''PR5 postcode'', see PR postcode area * Puerto Rico Highway 5 (PR-5) Vehicles * , a river gunboat * APJ ''PR5'', a motorcycle from ''AJP Motos'' * PR-5 Wiewior plus, a UAV drone * Rafaelyants PR-5, Soviet biplane bomber Other uses * PageRank * Style Pr5 for runestones * ''PR5'', part of the Polish Radio External Service * Phosphorane (''PR5''), the chemical class See also * PRS (other) PRS or prs may refer to: Science and technology * Peripheral Reflex System, an implementation of autonomous peripheral operations in microcontrollers * Personal response system, in audience response * Phenotypic response surfaces, in medicine * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parachute
A parachute is a device used to slow the motion of an object through an atmosphere by creating drag or, in a ram-air parachute, aerodynamic lift. A major application is to support people, for recreation or as a safety device for aviators, who can exit from an aircraft at height and descend safely to earth. A parachute is usually made of a light, strong fabric. Early parachutes were made of silk. The most common fabric today is nylon. A parachute's canopy is typically dome-shaped, but some are rectangles, inverted domes, and other shapes. A variety of loads are attached to parachutes, including people, food, equipment, space capsules, and bombs. History Middle Ages In 852, in Córdoba, Spain, the Moorish man Armen Firman attempted unsuccessfully to fly by jumping from a tower while wearing a large cloak. It was recorded that "there was enough air in the folds of his cloak to prevent great injury when he reached the ground." Early Renaissance The earliest evidence f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pilot Chute
A pilot chute is a small auxiliary parachute used to deploy the main or reserve parachute. The pilot chute is connected by a bridle to the deployment bag containing the parachute. Pilot chutes are a critical component of all modern skydiving and BASE jumping gear. Pilot chutes are also used as a component of spacecraft such as NASA's Orion. Deployment methods Spring-loaded The spring-loaded pilot chute is used in conjunction with a ripcord. When the user pulls the ripcord, the container opens, allowing the pilot chute compressed inside and loaded with a large spring inside it to jump out. Spring-loaded pilot chutes are mainly used to deploy reserve parachutes. They are often also used to deploy the main parachute on skydiving students' parachute equipment. They are also commonly used in drogue parachute in cars or in planes such as the B52 Bomber. Pull-out The pull-out and throw-out pilot chutes are identical in construction; the difference is in their connection to th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CLARK Y15
Clark is an English language surname, ultimately derived from the Latin with historical links to England, Scotland, and Ireland ''clericus'' meaning "scribe", "secretary" or a scholar within a religious order, referring to someone who was educated. ''Clark'' evolved from "clerk". First records of the name are found in 12th-century England. The name has many variants. ''Clark'' is the twenty-seventh most common surname in the United Kingdom, including placing fourteenth in Scotland. Clark is also an occasional given name, as in the case of Clark Gable. According to the 1990 United States Census, ''Clark'' was the twenty-first most frequently encountered surname, accounting for 0.23% of the population.United States Census Bureau (9 May 1995). s:1990 Census Name Files/dist.all.last (1-100). Retrieved on 2021-07-27. Notable people with the surname include: Disambiguation pages *Anne Clark (other), multiple people *Brian Clark (other), multiple people * Cameron Cla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Unmanned Aerial Vehicles
The following is a list of unmanned aerial vehicles developed and operated in various countries around the world. Algeria * AL fajer L-10 * Amel (UAV) Argentina * AeroDreams Chi-7 ( AeroDreams) * AeroDreams Strix Reconnaissance (2006) * AeroVision Arcangel (AeroVision) - agricultural and civilian surveillance (2010) * FMA IA X 59 Dronner ( FAdeA) - reconnaissance (1972) * Lipán M3 "Apache" - reconnaissance (2007) * Lipán XM4 - reconnaissance (development) * ARA Guardian (UAV) - reconnaissance (2007) * Nostromo Caburé ( Nostromo Defensa) * Nostromo Centinela * Nostromo Yarará2009 Worldwide UAV Roundup Poster . ''Aerospace America''. April 2009. * Nostromo Yagua * Quimar MQ-2 "Bigua" < ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
V-tail Aircraft
The V-tail or ''Vee-tail'' (sometimes called a butterfly tail or Rudlicki's V-tailGudmundsson S. (2013). "General Aviation Aircraft Design: Applied Methods and Procedures" (Reprint). Butterworth-Heinemann. p. 489. , 9780123973290) of an aircraft is an unconventional arrangement of the tail control surfaces that replaces the traditional fin and horizontal surfaces with two surfaces set in a V-shaped configuration. It is not widely used in aircraft design. The aft edge of each twin surface is a hinged control surface called a ruddervator, which combines the functions of both a rudder and elevator. The V-tail was invented in 1930 by Polish engineer Jerzy Rudlicki and was tested for the first time on the Hanriot H-28 trainer aircraft, modified by a Polish aerospace manufacturer Plage and Laśkiewicz in the summer of 1931. Variants The X-shaped tail surfaces of the experimental Lockheed XFV were essentially a V tail that extended both above and below the fuselage. Conventional T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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