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133 relations: Aérospatiale, Aérospatiale Gazelle, AgustaWestland AW109, AgustaWestland AW609, AHS International, Airbus Helicopters, Airfoil, Alphonse Pénaud, Anti-submarine warfare, Anton Flettner, Archimedes' screw, Arthur M. Young, Aspect ratio (aeronautics), Autogyro, Bamboo-copter, Baopuzi, Bell 206, Bell 407, Bell 430, Bell 47, Bell Boeing V-22 Osprey, Bell Helicopter, Bell OH-58 Kiowa, Bell UH-1 Iroquois, BERP rotor, Blade pitch, Boeing CH-47 Chinook, Boeing–Sikorsky RAH-66 Comanche, Cambridge University Press, Center of mass, Cierva W.9, Coandă effect, Cold War, Coriolis force, Disk loading, Dissymmetry of lift, Drag (physics), Drive shaft, Ducted fan, Elastomer, Euclidean vector, Eurocopter AS350 Écureuil, Eurocopter EC135, Fairey Jet Gyrodyne, Fairey Rotodyne, Federal Aviation Administration, Fenestron, Flettner Fl 265, Flettner Fl 282, Flight, ..., Flight dynamics (fixed-wing aircraft), Fly-by-wire, Focke-Achgelis Fa 223, Focke-Wulf Fw 61, Ge Hong, George Cayley, Glider (sailplane), Gyroscope, HAL Dhruv, HAL Light Combat Helicopter, HAL Rudra, Helicopter, Helicopter flight controls, Hiller Aircraft, Hiller YH-32 Hornet, Hughes Helicopters, Hughes OH-6 Cayuse, Hughes TH-55 Osage, Hughes XH-17, Igor Bensen, Igor Sikorsky, Irv Culver, John T. Parsons, Juan de la Cierva, Kaman Aircraft, Kaman HH-43 Huskie, Kaman K-MAX, Kriegsmarine, Leonardo da Vinci, Lift (force), Low-g condition, Machining, MBB Bo 105, MD Helicopters, MD Helicopters MD 500, Michael Yon, Microcontroller, Mikhail Lomonosov, Mil V-12, Moscow, NASA, Nazi Germany, Nickel, NOTAR, Numerical control, Paul Bevilaqua, Percival P.74, Pyrophoricity, Quadcopter, Radio-controlled helicopter, Retreating blade stall, Revolutions per minute, Robinson Helicopter Company, Robinson R22, Rotary Rocket, Rotorcraft, Schweizer 300, Seesaw, Sikorsky S-97 Raider, Sikorsky UH-60 Black Hawk, Slowed rotor, Stanley Hiller, Sud-Ouest Djinn, Swashplate (aeronautics), Tail rotor, Thrust, Tiltrotor, Titanium, Torque, Trademark, Transmission (mechanics), Transverse rotors, TsAGI, Turbofan, United States Air Force, United States Army, United States Army Aviation Branch, Venturi effect, Vought-Sikorsky VS-300, Washout (aeronautics), Wingtip vortices, Wired (magazine), Wright brothers. Expand index (83 more) »
Aérospatiale
Aérospatiale, sometimes styled Aerospatiale, was a French state-owned aerospace manufacturer that built both civilian and military aircraft, rockets and satellites.
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Aérospatiale Gazelle
The Aérospatiale Gazelle is a French five-seat helicopter, commonly used for light transport, scouting and light attack duties.
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AgustaWestland AW109
The AgustaWestland AW109 is a lightweight, twin-engine, eight-seat multi-purpose helicopter built by the Italian manufacturer Leonardo (formerly AgustaWestland, merged into the new Finmeccanica since 2016).
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AgustaWestland AW609
The AgustaWestland AW609, formerly the Bell/Agusta BA609, is a twin-engined tiltrotor VTOL aircraft with a configuration similar to the Bell Boeing V-22 Osprey.
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AHS International
The AHS International, Inc., formerly the American Helicopter Society, is the non-profit technical society for the advancement of vertical flight.
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Airbus Helicopters
Airbus Helicopters SAS (formerly Eurocopter Group) is the helicopter manufacturing division of Airbus.
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Airfoil
An airfoil (American English) or aerofoil (British English) is the shape of a wing, blade (of a propeller, rotor, or turbine), or sail (as seen in cross-section).
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Alphonse Pénaud
Alphonse Pénaud (31 May 1850 – 22 October 1880), was a 19th-century French pioneer of aviation design and engineering.
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Anti-submarine warfare
Anti-submarine warfare (ASW, or in older form A/S) is a branch of underwater warfare that uses surface warships, aircraft, or other submarines to find, track and deter, damage, or destroy enemy submarines.
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Anton Flettner
Anton Flettner (November 1, 1885 – December 29, 1961) was a German aviation engineer and inventor.
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Archimedes' screw
An Archimedes' screw, also known by the name the Archimedean screw or screw pump, is a machine historically (and also currently) used for transferring water from a low-lying body of water into irrigation ditches.
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Arthur M. Young
Arthur Middleton Young (November 3, 1905 – May 30, 1995) was an American inventor, helicopter pioneer, cosmologist, philosopher, astrologer and author.
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Aspect ratio (aeronautics)
In aeronautics, the aspect ratio of a wing is the ratio of its span to its mean chord.
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Autogyro
An autogyro (from Greek αὐτός and γύρος, "self-turning"), also known as a gyroplane or gyrocopter, is a type of rotorcraft that uses an unpowered rotor in free autorotation to develop lift.
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Bamboo-copter
The bamboo-copter, also known as the bamboo dragonfly or Chinese top (Chinese zhuqingting (竹蜻蜓), Japanese taketombo 竹蜻蛉), is a toy helicopter rotor that flies up when its shaft is rapidly spun.
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Baopuzi
The Baopuzi, written by the Jin dynasty scholar Ge Hong 葛洪 (283-343), is divided into esoteric Neipian 內篇 "Inner Chapters" and exoteric Waipian 外篇 "Outer Chapters".
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Bell 206
The Bell 206 is a family of two-bladed, single- and twin-engined helicopters, manufactured by Bell Helicopter at its Mirabel, Quebec plant.
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Bell 407
The Bell 407 is a four-blade, single-engine, civil utility helicopter; a derivative of the Bell 206L-4 LongRanger.
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Bell 430
The Bell 430 is an American twin-engine light-medium helicopter built by Bell Helicopter.
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Bell 47
The Bell 47 is a single rotor single engine light helicopter manufactured by Bell Helicopter.
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Bell Boeing V-22 Osprey
The Bell Boeing V-22 Osprey is an American multi-mission, tiltrotor military aircraft with both vertical takeoff and landing (VTOL), and short takeoff and landing (STOL) capabilities.
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Bell Helicopter
Bell Helicopter Textron Inc. is an American aerospace manufacturer headquartered in Fort Worth, Texas.
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Bell OH-58 Kiowa
The Bell OH-58 Kiowa is a family of single-engine, single-rotor, military helicopters used for observation, utility, and direct fire support.
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Bell UH-1 Iroquois
The Bell UH-1 Iroquois (nicknamed "Huey") is a utility military helicopter powered by a single turboshaft engine, with two-blade main and tail rotors.
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BERP rotor
The BERP rotor blade design was developed under the British Experimental Rotor Programme.
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Blade pitch
Blade pitch or simply pitch refers to turning the angle of attack of the blades of a propeller or helicopter rotor into or out of the wind to control the production or absorption of power.
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Boeing CH-47 Chinook
The Boeing CH-47 Chinook is an American twin-engine, tandem-rotor, heavy-lift helicopter developed by American rotorcraft company Vertol and manufactured by Boeing Vertol (later known as Boeing Rotorcraft Systems).
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Boeing–Sikorsky RAH-66 Comanche
The Boeing–Sikorsky RAH-66 Comanche is an advanced five-blade armed reconnaissance and attack helicopter designed for the United States Army.
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Cambridge University Press
Cambridge University Press (CUP) is the publishing business of the University of Cambridge.
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Center of mass
In physics, the center of mass of a distribution of mass in space is the unique point where the weighted relative position of the distributed mass sums to zero, or the point where if a force is applied it moves in the direction of the force without rotating.
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Cierva W.9
The Cierva W.9 was a British 1940s experimental helicopter with a three-blade tilting-hub controlled main rotor, and torque compensation achieved using a jet of air discharged from the rear port side of the fuselage.
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Coandă effect
The Coandă effect is the tendency of a fluid jet to stay attached to a convex surface.
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Cold War
The Cold War was a state of geopolitical tension after World War II between powers in the Eastern Bloc (the Soviet Union and its satellite states) and powers in the Western Bloc (the United States, its NATO allies and others).
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Coriolis force
In physics, the Coriolis force is an inertial force that acts on objects that are in motion relative to a rotating reference frame.
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Disk loading
In fluid dynamics, disk loading or disc loading is the average pressure change across an actuator disk, such as an airscrew.
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Dissymmetry of lift
Dissymmetry of lift in rotorcraft aerodynamics refers to an uneven amount of lift on opposite sides of the rotor disc.
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Drag (physics)
In fluid dynamics, drag (sometimes called air resistance, a type of friction, or fluid resistance, another type of friction or fluid friction) is a force acting opposite to the relative motion of any object moving with respect to a surrounding fluid.
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Drive shaft
A drive shaft, driveshaft, driving shaft, propeller shaft (prop shaft), or Cardan shaft is a mechanical component for transmitting torque and rotation, usually used to connect other components of a drive train that cannot be connected directly because of distance or the need to allow for relative movement between them.
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Ducted fan
A ducted fan is a propulsion arrangement whereby a mechanical fan, which is a type of propeller, is mounted within a cylindrical shroud or duct.
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Elastomer
An elastomer is a polymer with viscoelasticity (i. e., both viscosity and elasticity) and very weak intermolecular forces, and generally low Young's modulus and high failure strain compared with other materials.
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Euclidean vector
In mathematics, physics, and engineering, a Euclidean vector (sometimes called a geometric or spatial vector, or—as here—simply a vector) is a geometric object that has magnitude (or length) and direction.
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Eurocopter AS350 Écureuil
The Eurocopter (now Airbus Helicopters) AS350 Écureuil (Squirrel) (now H125) is a single-engine light utility helicopter originally designed and manufactured in France by Aérospatiale and Eurocopter (now Airbus Helicopters).
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Eurocopter EC135
The Eurocopter EC135 (now Airbus Helicopters H135) is a twin-engine civil light utility helicopter produced by Airbus Helicopters (formerly known as Eurocopter).
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Fairey Jet Gyrodyne
The Fairey Jet Gyrodyne was a British experimental compound autogyro built by the Fairey Aviation Company that incorporated helicopter, gyrodyne and autogyro characteristics.
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Fairey Rotodyne
The Fairey Rotodyne was a 1950s British compound gyroplane designed and built by Fairey Aviation and intended for commercial and military applications.
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Federal Aviation Administration
The Federal Aviation Administration (FAA) of the United States is a national authority with powers to regulate all aspects of civil aviation.
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Fenestron
A Fenestron (sometimes alternatively referred to as a fantail or a "fan-in-fin" arrangementLeishman 2006, p. 321.) is a protected tail rotor of a helicopter operating like a ducted fan.
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Flettner Fl 265
The Flettner Fl 265 was an experimental helicopter designed by Anton Flettner.
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Flettner Fl 282
The Flettner Fl 282 Kolibri ("Hummingbird") is a single-seat intermeshing rotor helicopter, or synchropter, produced by Anton Flettner of Germany.
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Flight
Flight is the process by which an object moves through an atmosphere (or beyond it, as in the case of spaceflight) without contact with the surface.
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Flight dynamics (fixed-wing aircraft)
Flight dynamics is the science of air vehicle orientation and control in three dimensions.
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Fly-by-wire
Fly-by-wire (FBW) is a system that replaces the conventional manual flight controls of an aircraft with an electronic interface.
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Focke-Achgelis Fa 223
The Focke-Achgelis Fa 223 Drache (Dragon) was a helicopter developed by Germany during World War II.
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Focke-Wulf Fw 61
The Focke-Wulf Fw 61 is often considered the first practical, functional helicopter, first flown in 1936.
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Ge Hong
Ge Hong (葛洪; b. 283 - d. 343 or 363) was an Eastern Jin Dynasty scholar, and the author of Essays on Chinese Characters.
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George Cayley
Sir George Cayley, 6th Baronet (27 December 1773 – 15 December 1857) was an English engineer, inventor, and aviator.
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Glider (sailplane)
A glider or sailplane is a type of glider aircraft used in the leisure activity and sport of gliding.
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Gyroscope
A gyroscope (from Ancient Greek γῦρος gûros, "circle" and σκοπέω skopéō, "to look") is a device used for measuring or maintaining orientation and angular velocity.
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HAL Dhruv
The HAL Dhruv is a utility helicopter developed and manufactured by India's Hindustan Aeronautics Limited (HAL).
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HAL Light Combat Helicopter
The HAL Light Combat Helicopter (LCH) is an Indian multirole combat helicopter developed and manufactured by Indian aerospace manufacturer Hindustan Aeronautics Limited (HAL).
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HAL Rudra
The HAL Rudra, also known as ALH-WSI, is an armed version of HAL Dhruv.
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Helicopter
A helicopter is a type of rotorcraft in which lift and thrust are supplied by rotors.
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Helicopter flight controls
A helicopter pilot manipulates the helicopter flight controls to achieve and maintain controlled aerodynamic flight.
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Hiller Aircraft
Hiller Aircraft Company was founded in 1942 as Hiller Industries by Stanley Hiller to develop helicopters.
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Hiller YH-32 Hornet
The Hiller YH-32 Hornet (company designation HJ-1) was an American ultralight helicopter built by Hiller Aircraft in the early 1950s.
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Hughes Helicopters
Hughes Helicopters was a major manufacturer of military and civil helicopters from the 1950s to the 1980s.
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Hughes OH-6 Cayuse
The Hughes OH-6 Cayuse (nicknamed "Loach", after the requirement acronym LOH — Light Observation Helicopter) is a single-engine light helicopter with a four-bladed main rotor used for personnel transport, escort and attack missions, and observation.
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Hughes TH-55 Osage
The Hughes TH-55 Osage was a piston-powered light training helicopter produced for the United States Army.
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Hughes XH-17
The Hughes XH-17 "Flying Crane" was the first helicopter project for the helicopter division of Hughes Aircraft Company.
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Igor Bensen
Igor Basilevich Bensen (И́горь Васи́льевич Бенсен; April 1, 1917 – February 10, 2000) was the founder of the Bensen Aircraft, which produced a successful line of gyrogliders (rotor kites) and autogyros.
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Igor Sikorsky
Igor Ivanovich Sikorsky (a, tr. Ígor' Ivánovič Sikórskij; May 25, 1889 – October 26, 1972),Fortier, Rénald.
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Irv Culver
Irv Culver was an American aeronautical engineer.
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John T. Parsons
John T. Parsons (October 11, 1913April 18, 2007) pioneered numerical control for machine tools in the 1940s.
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Juan de la Cierva
Juan de la Cierva y Codorníu, 1st Count of De La Cierva (21 September 1895 in Murcia, Spain – 9 December 1936 in Croydon, United Kingdom) was a Spanish civil engineer, pilot and aeronautical engineer.
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Kaman Aircraft
Kaman Aerospace is an American aerospace company, with headquarters in Bloomfield, Connecticut.
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Kaman HH-43 Huskie
The Kaman HH-43 Huskie was a helicopter with intermeshing rotors used by the United States Air Force, the United States Navy and the United States Marine Corps from the 1950s until the 1970s.
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Kaman K-MAX
The Kaman K-MAX (company designation K-1200) is an American helicopter with intermeshing rotors (synchropter) by Kaman Aircraft.
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Kriegsmarine
The Kriegsmarine (literally "War Navy") was the navy of Germany from 1935 to 1945.
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Leonardo da Vinci
Leonardo di ser Piero da Vinci (15 April 14522 May 1519), more commonly Leonardo da Vinci or simply Leonardo, was an Italian polymath of the Renaissance, whose areas of interest included invention, painting, sculpting, architecture, science, music, mathematics, engineering, literature, anatomy, geology, astronomy, botany, writing, history, and cartography.
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Lift (force)
A fluid flowing past the surface of a body exerts a force on it.
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Low-g condition
Low-g condition is a phase of aerodynamic flight where the airframe is temporarily unloaded.
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Machining
Machining is any of various processes in which a piece of raw material is cut into a desired final shape and size by a controlled material-removal process.
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MBB Bo 105
The Messerschmitt-Bölkow-Blohm Bo 105 is a light, twin-engine, multi-purpose helicopter developed by Bölkow of Ottobrunn, Germany.
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MD Helicopters
MD Helicopters, Inc. is an American aerospace manufacturer that produces helicopters primarily for commercial use.
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MD Helicopters MD 500
The MD Helicopters MD 500 series is an American family of light utility civilian and military helicopters.
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Michael Yon
Michael Yon (born 1964).
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Microcontroller
A microcontroller (MCU for microcontroller unit, or UC for μ-controller) is a small computer on a single integrated circuit.
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Mikhail Lomonosov
Mikhail Vasilyevich Lomonosov (ləmɐˈnosəf|a.
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Mil V-12
The Mil V-12 (NATO reporting name: Homer), given the project number Izdeliye 65 ("Item 65"), is the largest helicopter ever built.
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Moscow
Moscow (a) is the capital and most populous city of Russia, with 13.2 million residents within the city limits and 17.1 million within the urban area.
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NASA
The National Aeronautics and Space Administration (NASA) is an independent agency of the executive branch of the United States federal government responsible for the civilian space program, as well as aeronautics and aerospace research.
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Nazi Germany
Nazi Germany is the common English name for the period in German history from 1933 to 1945, when Germany was under the dictatorship of Adolf Hitler through the Nazi Party (NSDAP).
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Nickel
Nickel is a chemical element with symbol Ni and atomic number 28.
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NOTAR
NOTAR (no tail rotor) is a helicopter system which avoids the use of a tail rotor.
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Numerical control
Computer numerical control (CNC) is the automation of machine tools by means of computers executing pre-programmed sequences of machine control commands.
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Paul Bevilaqua
Paul Bevilaqua is an aeronautics engineer at Lockheed Martin in California.
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Percival P.74
The Percival P.74 (later Hunting Percival P.74) was a British experimental helicopter designed in the 1950s that was based on the use of tip-jet powered rotors.
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Pyrophoricity
A pyrophoric substance (from Greek πυροφόρος, pyrophoros, "fire-bearing") ignites spontaneously in air at or below 55 °C (130 °F).
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Quadcopter
A quadcopter, also called a quadrotor helicopter or quadrotor, is a multirotor helicopter that is lifted and propelled by four rotors.
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Radio-controlled helicopter
A Radio-controlled helicopter (also RC helicopter) is model aircraft which is distinct from a RC airplane because of the differences in construction, aerodynamics, and flight training.
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Retreating blade stall
Retreating blade stall is a hazardous flight condition in helicopters and other rotary wing aircraft, where the rotor blade with the smaller resultant relative wind exceeds the critical angle.
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Revolutions per minute
Revolutions per minute (abbreviated rpm, RPM, rev/min, r/min) is the number of turns in one minute.
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Robinson Helicopter Company
The Robinson Helicopter Company, based at Zamperini Field in Torrance, California, is a manufacturer of civil helicopters.
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Robinson R22
The Robinson R22 is a two-bladed, single-engine light utility helicopter manufactured by Robinson Helicopter Company.
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Rotary Rocket
Rotary Rocket Company was a rocketry company that developed the Roton concept in the late 1990s as a fully reusable single-stage-to-orbit (SSTO) manned spacecraft.
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Rotorcraft
A rotorcraft or rotary-wing aircraft is a heavier-than-air flying machine that uses lift generated by wings, called rotary wings or rotor blades, that revolve around a mast.
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Schweizer 300
The Sikorsky S-300 (formerly Hughes 300 and Schweizer 300) family of light utility helicopters was originally produced by Hughes Helicopters, as a development of the Hughes 269.
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Seesaw
A seesaw (also known as a teeter-totter or teeterboard) is a long, narrow board supported by a single pivot point, most commonly located at the midpoint between both ends; as one end goes up, the other goes down.
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Sikorsky S-97 Raider
The Sikorsky S-97 Raider is a proposed high-speed scout and attack compound helicopter based on the Advancing Blade Concept (ABC), under development by Sikorsky Aircraft.
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Sikorsky UH-60 Black Hawk
The Sikorsky UH-60 Black Hawk is a four-bladed, twin-engine, medium-lift utility helicopter manufactured by Sikorsky Aircraft.
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Slowed rotor
Slowed rotor is a concept in designing and flying certain rotorcraft.
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Stanley Hiller
Stanley Hiller Jr. (November 15, 1924 – April 20, 2006), was a pioneering developer of the helicopter.
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Sud-Ouest Djinn
The Sud-Ouest S.O.1221 Djinn is a French two-seat light helicopter designed and manufactured by aircraft manufacturer Sud-Ouest, which later became Sud Aviation.
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Swashplate (aeronautics)
A swashplate is a device that translates input via the helicopter flight controls into motion of the main rotor blades.
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Tail rotor
The tail rotor is a smaller rotor mounted so that it rotates vertically or near-vertically at the end of the tail of a traditional single-rotor helicopter.
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Thrust
Thrust is a reaction force described quantitatively by Newton's third law.
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Tiltrotor
A tiltrotor is an aircraft which generates lift and propulsion by way of one or more powered rotors (sometimes called proprotors) mounted on rotating engine pods or nacelles usually at the ends of a fixed wing or an engine mounted in the fuselage with drive shafts transferring power to rotor assemblies mounted on the wingtips.
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Titanium
Titanium is a chemical element with symbol Ti and atomic number 22.
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Torque
Torque, moment, or moment of force is rotational force.
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Trademark
A trademark, trade mark, or trade-markThe styling of trademark as a single word is predominantly used in the United States and Philippines only, while the two-word styling trade mark is used in many other countries around the world, including the European Union and Commonwealth and ex-Commonwealth jurisdictions (although Canada officially uses "trade-mark" pursuant to the Trade-mark Act, "trade mark" and "trademark" are also commonly used).
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Transmission (mechanics)
A transmission is a machine in a power transmission system, which provides controlled application of the power.
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Transverse rotors
Transverse rotor rotorcraft have two large horizontal rotor assemblies mounted side by side.
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TsAGI
The Central Aerohydrodynamic Institute (Tsentralniy Aerogidrodinamicheskiy Institut, TsAGI) was founded in Moscow by the pioneer of Russian aviation, Nikolai Yegorovich Zhukovsky on December 1, 1918.
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Turbofan
The turbofan or fanjet is a type of airbreathing jet engine that is widely used in aircraft propulsion.
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United States Air Force
The United States Air Force (USAF) is the aerial and space warfare service branch of the United States Armed Forces.
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United States Army
The United States Army (USA) is the land warfare service branch of the United States Armed Forces.
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United States Army Aviation Branch
The United States Army Aviation Branch is the administrative organization within the United States Army responsible for doctrine, manning and configuration for all army aviation units.
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Venturi effect
The Venturi effect is the reduction in fluid pressure that results when a fluid flows through a constricted section (or choke) of a pipe.
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Vought-Sikorsky VS-300
The Vought-Sikorsky VS-300 (or S-46) is a single-engine helicopter designed by Igor Sikorsky.
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Washout (aeronautics)
Washout is a characteristic of aircraft wing design which deliberately reduces the lift distribution across the span of an aircraft’s wing.
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Wingtip vortices
Wingtip vortices are circular patterns of rotating air left behind a wing as it generates lift.
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Wired (magazine)
Wired is a monthly American magazine, published in print and online editions, that focuses on how emerging technologies affect culture, the economy, and politics.
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Wright brothers
The Wright brothers, Orville (August 19, 1871 – January 30, 1948) and Wilbur (April 16, 1867 – May 30, 1912), were two American aviators, engineers, inventors, and aviation pioneers who are generally credited with inventing, building, and flying the world's first successful airplane.
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Redirects here:
Articulated rotor, Drag hinge, Drag hinges, Helicopter Rotor, Helicopter rotor blade, Kopp-Etchells effect, Kopp-etchells effect, Lead-lag hinge, Main rotor, Rotor blade, Stabilizer bar (helicopter), Teetering rotor.
References
[1] https://en.wikipedia.org/wiki/Helicopter_rotor
