text:
Wednesday Addams
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Wednesday Addams
Wednesday, as portrayed by Christina Ricci in Addams Family Values
First appearance
The New Yorker cartoon, (1938)
Created by
Charles Addams
Portrayed by
Lisa Loring,
Cindy Henderson,
Christina Ricci,
Debi Derryberry,
Nicole Fugere,
Krysta Rodriguez,
Rachel Potter ,
Lauren Revere,
Melissa Hunter,
Carrie Hope Fletcher
Information
Gender
Female
Family
Gomez (father)
Morticia (mother)
Lucas (husband)
Pugsley (older brother)
Pubert (younger brother)
Fester (uncle)
Grandmama (grandmother)
Itt (cousin)
Debbie Jellinsky-Addams (aunt)
Nationality
American
Wednesday Friday Addams is a fictional character created by American cartoonist Charles Addams in his comic strip The Addams Family. The character has also appeared in television and film, in both the live action and animated formats.
Contents
[hide]
1 Wednesday
2 Appearance and personality
3 Legacy
4 Portrayals
5 References
Wednesday[edit]
In Addams' cartoons, which first appeared in The New Yorker, Wednesday and other members of the family had no names. When the characters were adapted to the 1964 television series, Charles Addams gave her the name "Wednesday", based on the well-known nursery rhyme line, "Wednesday's child is full of woe". She is the sister of Pugsley Addams (and, in the movie Addams Family Values, also the sister of Pubert Addams), and she is the only daughter of Gomez and Morticia Addams.
Appearance and personality[edit]
Wednesday's most notable features are her pale skin and long, dark twin braids. She seldom shows emotion and is generally bitter. Wednesday usually wears a black dress with a white collar, black stockings and black shoes.
In the 1960s series, she is significantly more sweet-natured, although her favorite hobby is raising spiders; she is also a ballerina. Wednesday's favorite toy is her Marie Antoinette doll, which her brother guillotines (at her request). She is stated to be six years old in the television series' pilot episode. In one episode, she is shown to have several other headless dolls as well. She also paints pictures (including a picture of trees with human heads) and writes a poem dedicated to her favorite pet spider, Homer. Wednesday is deceptively strong; she is able to bring her father down with a judo hold.
In the 1991 film, she is depicted closer to the original cartoons. She shows sadistic tendencies and a dark personality, and is revealed to have a deep interest in the Bermuda Triangle and an admiration for an ancestor (Great Aunt Calpurnia Addams) who was burned as a witch in 1706. In the 1993 sequel, she was even darker: buried a live cat, tried to kill her baby brother Pubert, set fire to Camp Chippewa and (possibly) scared fellow camper, Lucas.
Wednesday has a close kinship with the family's giant butler Lurch. In the TV series, her middle name is "Friday".[1] In the Spanish version, her name is Miércoles (Wednesday in Spanish); in Latin America she is Merlina; in the Brazilian version she is Wandinha (little Wanda in Portuguese); and in Italy her name is Mercoledì (Wednesday in Italian).
Child of woe is wan and delicate...sensitive and on the quiet side, she loves the picnics and outings to the underground caverns...a solemn child, prim in dress and, on the whole, pretty lost...secretive and imaginative, poetic, seems underprivileged and given to occasional tantrums...has six toes on one foot...[2]
—  Charles Addams
In the animated series and Canadian TV series The New Addams Family from the 1990s, Wednesday retains her appearance and her taste for darkness and torture.
In the Broadway musical The Addams Family: A New Musical, she is 18 years old and has short hair rather than the long braids in her other appearances. Her darkness and sociopathic traits have been toned down, and she is in love with (and revealed to be engaged to) Lucas Beineke. In the musical Wednesday is older than Pugsley.
In the parody web series Adult Wednesday Addams, Wednesday, as played by Melissa Hunter, recovers her dark, sociopathic and sadistic nature and her long braids, connecting with the events and the depiction of the movies and the original comic-book. This Wednesday deals with being an adult after moving out of her family home.[3] The web series gained media attention with the third episode of Season 2 in which Wednesday punished a pair of catcallers.[4]
Legacy[edit]
Bridget Marquardt, from The Girls Next Door, has named her dog Wednesday after the character.
Musician Wednesday 13 derived his moniker from the character.
Comedian Melissa Hunter portrayed the character in her web series Adult Wednesday Addams.
Portrayals[edit]
Lisa Loring as Wednesday in The Addams Family original series.
Christina Ricci as Wednesday in The Addams Family.
Over the years, Wednesday has been portrayed by a variety of actresses, on television, the movies, and stage:
Lisa Loring (Live-action TV 1964–1966, 1977)
Cindy Henderson (Animated TV 1972–1974)
Christina Ricci (Live-action movies 1991, 1993)
Debi Derryberry (Animated TV 1992–1994)
Nicole Fugere (Live-action movie 1998, Live-action TV 1998–1999)
Krysta Rodriguez (Broadway musical 2010)
Rachel Potter (Broadway musical 2011)
Cortney Wolfson (2011 First National Broadway Tour)
Laura Lobo (2012 First Brazilian Cast)
Frankie Lowe (2012 UK National Tour)
Jennifer Fogarty (2013 Asian Tour)
Gloria Aura (2014 Mexican Tour)
Melissa Hunter (2013-2015, Adult Wednesday Addams)
Carrie Hope Fletcher (2017 UK National Tour Of The Addams Family Musical)
Wednesday is played by Lisa Loring in the original TV series. In the first animated series from Hanna-Barbera, her voice was done by Cindy Henderson. Henderson voiced that same character in an episode of The New Scooby-Doo Movies. In the second animated series from Hanna-Barbera, she is voiced by Debi Derryberry.
The Addams Family (1991) and its sequel Addams Family Values (1993)[5] portray Wednesday as far more malevolent than her television self. Wednesday's personality is severe, with a deadpan wit and a morbid interest in trying to inflict harm upon her brothers, first Pugsley and later Pubert. In both films, she is played by Christina Ricci. In the movie Addams Family Values (1993), Wednesday is sent to a summer camp for "privileged young adults" called Camp Chippewa, where Joel Glicker (played by David Krumholtz) takes a liking to Wednesday. She refuses to participate in Gary Granger's play, a musical production of the first Thanksgiving. She, Pugsley, and Joel are locked in the "Harmony Hut" and forced to watch upbeat family films to curb their antisocial behavior. On emerging from the hut, Wednesday feigns perkiness and agrees to play the role of Pocahontas. However, during the play, she leads the other social outcasts—who have all been cast as Native Americans—in a revolt, capturing Gary, Becky, and Amanda and leaving the camp in chaos. Before she leaves, Wednesday and Joel kiss. Joel is a neurotic, allergy-ridden boy with an overbearing mother. In one scene in the film, she smiles, which ends up scaring the campers, as well as her blonde nemesis.[6] At the end of the film, it is suggested that Wednesday, though she obviously likes Joel, purposely tries to scare him to death after he brings up the subject of marriages.
In the 1977 television holiday-themed special, Halloween with the New Addams Family, Lisa Loring plays a grown-up Wednesday, who mostly entertains their party guests with her flute, and can hear and understand coded help messages by bound-up members of the family, and dispatch help to free them. In the time interval between the original TV series and this television movie, her parents had two more children who look just like the original Pugsley and Wednesday.
Wednesday is portrayed by Nicole Fugere in the straight-to-video movie Addams Family Reunion and Fox Family Channel's television series The New Addams Family, which were both produced in 1998.
In April 2010, The Addams Family: A New Musical debuted on Broadway. Krysta Rodriguez played Wednesday. The character is now 18 years old, has "become a woman", and to that effect no longer sports her signature pigtails. The musical is based on the characters as created by Charles Addams. In March 2011, Krysta Rodriguez was replaced with Rachel Potter as Wednesday in the Broadway cast. Starting in September 2011, the production begins its First National Tour. Cortney Wolfson has been cast in the Wednesday Addams role. In the Broadway production, she was the understudy for Wednesday and performed as the Dead Bride/Ancestor.[7]
Melissa Hunter plays an adult Wednesday Addams on her YouTube series.[8] Her Wednesday is darker than the version from the musical and closer to the version from the original cartoons and movies.
References[edit]
Jump up ^ "Wednesday Leaves Home" (20 November 1964) Season 1, Episode 10, at 06:30
Jump up ^ "Tee & Charles Addams Foundation". Charlesaddams.com. Retrieved 2015-05-30.
Jump up ^ Carrie, Stephanie (March 6, 2015). "A Christina Ricci Doppelganger Creates a Series About Wednesday Addams As an Adult". LA Weekly. Retrieved March 16, 2015.
Jump up ^ "How Wednesday Addams Would React To Catcalling". Huffingtonpost.com. 2015-02-13. Retrieved 2015-05-30.
Jump up ^ "The Addams Family Movie page". Web.archive.org. 2009-10-28. Archived from the original on 28 October 2009. Retrieved 2015-05-30.
Jump up ^ "Wednesday Addams". Enjoy-your-style.com. 2013-03-21. Retrieved 2015-05-30.
Jump up ^ "Cortney Wolfson". Cortneywolfson.com. Retrieved 2015-05-30.
Jump up ^ "Adult Wednesday Addams". YouTube.com. 2015-03-12. Retrieved 2015-05-30.
[hide]
v
t
e
The Addams Family
Characters
Gomez Addams
Morticia Addams
Pugsley Addams
Wednesday Addams
Uncle Fester
Grandmama
Lurch
Thing
Cousin Itt
Television
The Addams Family (episodes)
1973 animated series
Halloween with the New Addams Family (1977 TV film)
1992 animated series
The New Addams Family
Films
The Addams Family (1991)
Addams Family Values (1993)
Addams Family Reunion (1998)
Theatre
The Addams Family (musical)
Games
Fester's Quest (1989)
The Addams Family pinball (1991)
The Addams Family handheld (1991)
The Addams Family
The Addams Family: Pugsley's Scavenger Hunt (1993)
Addams Family Values (1994)
Music
"The Addams Family Theme"
"When You're an Addams"
"Addams Groove"
The Addams Family soundtrack
Addams Family Values: Music from the Motion Picture
Addams Family Values: The Original Orchestral Score
Books
The Addams Family: An Evilution
Creator
Charles Addams
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Airplane
From Wikipedia, the free encyclopedia
Jump to: navigation, search
"Aeroplane" redirects here. For other uses, see Airplane (disambiguation) and Aeroplane (disambiguation).
North American P-51 Mustang, a World War II fighter aircraft
The first flight of an airplane, the Wright Flyer on December 17, 1903
An airplane or aeroplane (informally plane) is a powered, fixed-wing aircraft that is propelled forward by thrust from a jet engine or propeller. Airplanes come in a variety of sizes, shapes, and wing configurations. The broad spectrum of uses for airplanes includes recreation, transportation of goods and people, military, and research. Commercial aviation is a massive industry involving the flying of tens of thousands of passengers daily on airliners. Most airplanes are flown by a pilot on board the aircraft, but some are designed to be remotely or computer-controlled.
The Wright brothers invented and flew the first airplane in 1903, recognized as "the first sustained and controlled heavier-than-air powered flight".[1] They built on the works of George Cayley dating from 1799, when he set forth the concept of the modern airplane (and later built and flew models and successful passenger-carrying gliders).[2] Between 1867 and 1896, the German pioneer of human aviation Otto Lilienthal also studied heavier-than-air flight. Following its limited use in World War I, aircraft technology continued to develop. Airplanes had a presence in all the major battles of World War II. The first jet aircraft was the German Heinkel He 178 in 1939. The first jet airliner, the de Havilland Comet, was introduced in 1952. The Boeing 707, the first widely successful commercial jet, was in commercial service for more than 50 years, from 1958 to at least 2013.
Contents
[hide]
1 Etymology and usage
2 History
2.1 Antecedents
2.2 Early powered flights
2.3 Development of jet aircraft
3 Propulsion
3.1 Propeller engines
3.2 Jet engines
3.3 Electric engines
3.4 Rocket engines
3.5 Ramjet and scramjet engines
4 Design and manufacture
5 Characteristics
5.1 Airframe
5.2 Wings
5.2.1 Wing structure
5.2.2 Wing configuration
5.3 Fuselage
5.4 Wings vs. bodies
5.4.1 Flying wing
5.4.2 Blended wing body
5.4.3 Lifting body
5.5 Empennage and foreplane
5.6 Controls and instruments
6 Safety
7 See also
8 References
9 Bibliography
10 External links
Etymology and usage
First attested in English in the late 19th century (prior to the first sustained powered flight), the word airplane, like aeroplane, derives from the French aéroplane, which comes from the Greek ἀήρ (aēr), "air"[3] and either Latin planus, "level",[4] or Greek πλάνος (planos), "wandering".[5][6] "Aéroplane" originally referred just to the wing, as it is a plane moving through the air.[7] In an example of synecdoche, the word for the wing came to refer to the entire aircraft.
In the United States and Canada, the term "airplane" is used for powered fixed-wing aircraft. In the United Kingdom and most of the Commonwealth, the term "aeroplane" (/ˈɛərəpleɪn/[7]) is usually applied to these aircraft.
History
Main articles: Aviation history and First flying machine
Le Bris and his glider, Albatros II, photographed by Nadar, 1868
Otto Lilienthal in mid-flight, c. 1895
Antecedents
Many stories from antiquity involve flight, such as the Greek legend of Icarus and Daedalus, and the Vimana in ancient Indian epics. Around 400 BC in Greece, Archytas was reputed to have designed and built the first artificial, self-propelled flying device, a bird-shaped model propelled by a jet of what was probably steam, said to have flown some 200 m (660 ft).[8][9] This machine may have been suspended for its flight.[10][11]
Some of the earliest recorded attempts with gliders were those by the 9th-century poet Abbas ibn Firnas and the 11th-century monk Eilmer of Malmesbury; both experiments injured their pilots.[12] Leonardo da Vinci researched the wing design of birds and designed a man-powered aircraft in his Codex on the Flight of Birds (1502).
In 1799, George Cayley set forth the concept of the modern airplane as a fixed-wing flying machine with separate systems for lift, propulsion, and control.[13][14] Cayley was building and flying models of fixed-wing aircraft as early as 1803, and he built a successful passenger-carrying glider in 1853.[2] In 1856, Frenchman Jean-Marie Le Bris made the first powered flight, by having his glider "L'Albatros artificiel" pulled by a horse on a beach.[15] Then Alexander F. Mozhaisky also made some innovative designs. In 1883, the American John J. Montgomery made a controlled flight in a glider.[16] Other aviators who made similar flights at that time were Otto Lilienthal, Percy Pilcher, and Octave Chanute.
Sir Hiram Maxim built a craft that weighed 3.5 tons, with a 110-foot (34 meter) wingspan that was powered by two 360-horsepower (270 kW) steam engines driving two propellers. In 1894, his machine was tested with overhead rails to prevent it from rising. The test showed that it had enough lift to take off. The craft was uncontrollable, which Maxim, it is presumed, realized, because he subsequently abandoned work on it.[17]
In the 1890s, Lawrence Hargrave conducted research on wing structures and developed a box kite that lifted the weight of a man. His box kite designs were widely adopted. Although he also developed a type of rotary aircraft engine, he did not create and fly a powered fixed-wing aircraft.[18]
Between 1867 and 1896 the German pioneer of human aviation Otto Lilienthal developed heavier-than-air flight. He was the first person to make well-documented, repeated, successful gliding flights.
Early powered flights
Patent drawings of Clement Ader's Éole.
Clement Ader constructed his first of three flying machines in 1886, the Éole. It was a bat-like design run by a lightweight steam engine of his own invention, with 4 cylinders developing 20 horsepower (15 kW), driving a four-blade propeller. The engine weighed no more than 4 kg/kW (7 pounds per horsepower). The wings had a span of 14 m (46 ft). All-up weight was 300 kg (650 lb). On 9 October 1890 Ader attempted to fly the Éole. Aviation historians give credit to this effort as a powered take-off and uncontrolled hop of approximately 50 m (160 ft) at a height of approximately 20 cm, (8 in).[19][20] Ader's two subsequent machines were not documented to have achieved flight.[21]
The Wright brothers flights in 1903 are recognized by the Fédération Aéronautique Internationale (FAI), the standard setting and record-keeping body for aeronautics, as "the first sustained and controlled heavier-than-air powered flight".[1] By 1905, the Wright Flyer III was capable of fully controllable, stable flight for substantial periods. The Wright brothers credited Otto Lilienthal as a major inspiration for their decision to pursue manned flight.
Santos-Dumont 14-bis, between 1906 and 1907
In 1906, Alberto Santos-Dumont made what was claimed to be the first airplane flight unassisted by catapult[22] and set the first world record recognized by the Aéro-Club de France by flying 220 meters (720 ft) in less than 22 seconds.[23] This flight was also certified by the FAI.[24][25]
An early aircraft design that brought together the modern monoplane tractor configuration was the Blériot VIII design of 1908. It had movable tail surfaces controlling both yaw and pitch, a form of roll control supplied either by wing warping or by ailerons and controlled by its pilot with a joystick and rudder bar. It was an important predecessor of his later Blériot XI Channel-crossing aircraft of the summer of 1909.[26]
In Romania the aircraft, A. Vlaicu nr. 1, was finished in 1909, and was test flown on June 17, 1910. From the first flight the airplane had no need of changes. The plane was made from a single aluminum spar 10 m (33 ft) long which supported the entire aircraft, making it very easy to fly. Ten planes were made for the Romanian Air Force, being the second-ever military air force in the world.
World War I served as a testbed for the use of the airplane as a weapon. Airplanes demonstrated their potential as mobile observation platforms, then proved themselves to be machines of war capable of causing casualties to the enemy. The earliest known aerial victory with a synchronized machine gun-armed fighter aircraft occurred in 1915, by German Luftstreitkräfte Leutnant Kurt Wintgens. Fighter aces appeared; the greatest (by number of Aerial Combat victories) was Manfred von Richthofen.
Following WWI, aircraft technology continued to develop. Alcock and Brown crossed the Atlantic non-stop for the first time in 1919. The first international commercial flights took place between the United States and Canada in 1919.[27]
Airplanes had a presence in all the major battles of World War II. They were an essential component of the military strategies of the period, such as the German Blitzkrieg, The Battle of Britain, and the American and Japanese aircraft carrier campaigns of the Pacific War.
Development of jet aircraft
The first 'operational' jet aircraft was the German Heinkel He 178, which was tested in 1939. In 1943, the Messerschmitt Me 262, the first 'operational' jet fighter aircraft, went into service in the German Luftwaffe. In October 1947, the Bell X-1 was the first aircraft to exceed the speed of sound.[28]
The first jet airliner, the de Havilland Comet, was introduced in 1952. The Boeing 707, the first widely successful commercial jet, was in commercial service for more than 50 years, from 1958 to 2010. The Boeing 747 was the world's biggest passenger aircraft from 1970 until it was surpassed by the Airbus A380 in 2005.
Propulsion
See also: Powered aircraft and Aircraft engine
Propeller engines
Main article: Propeller (aeronautics)
An Antonov An-2 biplane
Smaller and older propeller planes make use of reciprocating engines (or piston engines) to turn a propeller to create thrust. The amount of thrust a propeller creates is determined by its disk area - the area in which the blades rotate. If the area is too small, efficiency is poor, and if the area is large, the propeller must rotate at a very low speed to avoid going supersonic and creating a lot of noise, and not much thrust. Because of this limitation, propellers are favored for planes which travel at below mach .5, while jets are a better choice above that speed. Propeller engines may be quieter than jet engines (though not always) and may cost less to purchase or maintain and so remain common on light general aviation aircraft such as the Cessna 172. Larger modern propeller planes such as the Dash 8 use a jet engine to turn the propeller, primarily because an equivalent piston engine in power output would be much larger and more complex.
Jet engines
Main article: Jet engine
The Concorde supersonic transport aircraft
Jet aircraft are propelled by jet engines, which are used because the aerodynamic limitations of propellers do not apply to jet propulsion. These engines are much more powerful than a reciprocating engine for a given size or weight and are comparatively quiet and work well at higher altitude. Most modern jet planes use turbofan jet engines which balance the advantages of a propeller, while retaining the exhaust speed and power of a jet. This is essentially a ducted propeller attached to a jet engine, much like a turboprop, but with a smaller diameter. When installed on an airliner, it is efficient so long as it remains below the speed of sound (or subsonic). Jet fighters and other supersonic aircraft that do not spend a great deal of time supersonic also often use turbofans, but to function, air intake ducting is needed to slow the air down so that when it arrives at the front of the turbofan, it is subsonic. When passing through the engine, it is then re-accelerated back to supersonic speeds. To further boost the power output, fuel is dumped into the exhaust stream, where it ignites. This is called an afterburner and has been used on both pure jet aircraft and turbojet aircraft although it is only normally used on combat aircraft due to the amount of fuel consumed, and even then may only be used for short periods of time. Supersonic airliners (e.g. Concorde) are no longer in use largely because flight at supersonic speed creates a sonic boom which is prohibited in most heavily populated areas, and because of the much higher consumption of fuel supersonic flight requires.
Jet aircraft possess high cruising speeds (700 to 900 km/h (430 to 560 mph)) and high speeds for takeoff and landing (150 to 250 km/h (93 to 155 mph)). Due to the speed needed for takeoff and landing, jet aircraft use flaps and leading edge devices to control the lift and speed. Many jet aircraft also use thrust reversers to slow down the aircraft upon landing.
Electric engines
Main article: Electric motor
An electric aircraft runs on electric motors rather than internal combustion engines, with electricity coming from fuel cells, solar cells, ultracapacitors, power beaming,[29] or batteries. Currently, flying electric aircraft are mostly experimental prototypes, including manned and unmanned aerial vehicles, but there are some production models on the market already.[30]
Rocket engines
Main article: Rocket engine
Bell X-1 in flight, 1947
In World War II, the Germans deployed the Me 163 Komet rocket-powered aircraft. The first plane to break the sound barrier in level flight was a rocket plane – the Bell X-1. The later North American X-15 broke many speed and altitude records and laid much of the groundwork for later aircraft and spacecraft design. Rocket aircraft are not in common usage today, although rocket-assisted take offs are used for some military aircraft. Recent rocket aircraft include the SpaceShipOne and the XCOR EZ-Rocket.
There are many rocket-powered aircraft/spacecraft planes, the spaceplanes, that are designed to fly outside Earth's atmosphere.
Ramjet and scramjet engines
Main articles: Ramjet and Scramjet
Artist's concept of X-43A with scramjet attached to the underside
A ramjet is a form of jet engine that contains no major moving parts and can be particularly useful in applications requiring a small and simple engine for high-speed use, such as with missiles. Ramjets require forward motion before they can generate thrust and so are often used in conjunction with other forms of propulsion, or with an external means of achieving sufficient speed. The Lockheed D-21 was a Mach 3+ ramjet-powered reconnaissance drone that was launched from a parent aircraft. A ramjet uses the vehicle's forward motion to force air through the engine without resorting to turbines or vanes. Fuel is added and ignited, which heats and expands the air to provide thrust.
A scramjet is a supersonic ramjet and aside from differences with dealing with internal supersonic airflow works like a conventional ramjet. This type of engine requires a very high initial speed in order to work. The NASA X-43, an experimental unmanned scramjet, set a world speed record in 2004 for a jet-powered aircraft with a speed of Mach 9.7, nearly 7,500 miles per hour (12,100 km/h).
Design and manufacture
Main article: Aerospace manufacturer
Assembly line of the SR-71 Blackbird at Skunk Works, Lockheed Martin’s Advanced Development Programs (ADP).
Most airplanes are constructed by companies with the objective of producing them in quantity for customers. The design and planning process, including safety tests, can last up to four years for small turboprops or longer for larger planes.
During this process, the objectives and design specifications of the aircraft are established. First the construction company uses drawings and equations, simulations, wind tunnel tests and experience to predict the behavior of the aircraft. Computers are used by companies to draw, plan and do initial simulations of the aircraft. Small models and mockups of all or certain parts of the plane are then tested in wind tunnels to verify its aerodynamics.
When the design has passed through these processes, the company constructs a limited number of prototypes for testing on the ground. Representatives from an aviation governing agency often make a first flight. The flight tests continue until the aircraft has fulfilled all the requirements. Then, the governing public agency of aviation of the country authorizes the company to begin production.
In the United States, this agency is the Federal Aviation Administration (FAA), and in the European Union, European Aviation Safety Agency (EASA). In Canada, the public agency in charge and authorizing the mass production of aircraft is Transport Canada.
When a part or component needs to be joined together by welding for virtually any aerospace or defense application, it must meet the most stringent and specific safety regulations and standards. Nadcap, or the National Aerospace and Defense Contractors Accreditation Program sets global requirements for quality, quality management and quality assurance of for aerospace engineering.[31]
In the case of international sales, a license from the public agency of aviation or transport of the country where the aircraft is to be used is also necessary. For example, airplanes made by the European company, Airbus, need to be certified by the FAA to be flown in the United States, and airplanes made by U.S.-based Boeing need to be approved by the EASA to be flown in the European Union.
An Airbus A321 on final assembly line 3 in the Airbus plant at Hamburg Finkenwerder Airport.
Quieter planes are becoming more and more necessary due to the increase in air traffic, particularly over urban areas, as aircraft noise pollution is a major concern.
Small planes can be designed and constructed by amateurs as homebuilts. Other homebuilt aircraft can be assembled using pre-manufactured kits of parts that can be assembled into a basic plane and must then be completed by the builder.
There are few companies that produce planes on a large scale. However, the production of a plane for one company is a process that actually involves dozens, or even hundreds, of other companies and plants, that produce the parts that go into the plane. For example, one company can be responsible for the production of the landing gear, while another one is responsible for the radar. The production of such parts is not limited to the same city or country; in the case of large plane manufacturing companies, such parts can come from all over the world.
The parts are sent to the main plant of the plane company, where the production line is located. In the case of large planes, production lines dedicated to the assembly of certain parts of the plane can exist, especially the wings and the fuselage.
When complete, a plane is rigorously inspected to search for imperfections and defects. After approval by inspectors, the plane is put through a series of flight tests to assure that all systems are working correctly and that the plane handles properly. Upon passing these tests, the plane is ready to receive the "final touchups" (internal configuration, painting, etc.), and is then ready for the customer.
Characteristics
An IAI Heron - an unmanned aerial vehicle with a twin-boom configuration
Airframe
Main article: Airframe
The structural parts of a fixed-wing aircraft are called the airframe. The parts present can vary according to the aircraft's type and purpose. Early types were usually made of wood with fabric wing surfaces, When engines became available for powered flight around a hundred years ago, their mounts were made of metal. Then as speeds increased more and more parts became metal until by the end of WWII all-metal aircraft were common. In modern times, increasing use of composite materials has been made.
Typical structural parts include:
One or more large horizontal wings, often with an airfoil cross-section shape. The wing deflects air downward as the aircraft moves forward, generating lifting force to support it in flight. The wing also provides stability in roll to stop the aircraft from rolling to the left or right in steady flight.
The An-225 Mriya, which can carry a 250-tonne payload, has two vertical stabilisers.
A fuselage, a long, thin body, usually with tapered or rounded ends to make its shape aerodynamically smooth. The fuselage joins the other parts of the airframe and usually contains important things such as the pilot, payload and flight systems.
A vertical stabilizer or fin is a vertical wing-like surface mounted at the rear of the plane and typically protruding above it. The fin stabilizes the plane's yaw (turn left or right) and mounts the rudder which controls its rotation along that axis.
A horizontal stabilizer or tailplane, usually mounted at the tail near the vertical stabilizer. The horizontal stabilizer is used to stabilize the plane's pitch (tilt up or down) and mounts the elevators which provide pitch control.
Landing gear, a set of wheels, skids, or floats that support the plane while it is on the surface. On seaplanes the bottom of the fuselage or floats (pontoons) support it while on the water. On some planes the landing gear retracts during flight to reduce drag.
Wings
Main article: Wing
The wings of a fixed-wing aircraft are static planes extending either side of the aircraft. When the aircraft travels forwards, air flows over the wings which are shaped to create lift. This shape is called an airfoil and is shaped like a bird's wing.
Wing structure
Airplanes have flexible wing surfaces which are stretched across a frame and made rigid by the lift forces exerted by the airflow over them. Larger aircraft have rigid wing surfaces which provide additional strength.
Whether flexible or rigid, most wings have a strong frame to give them their shape and to transfer lift from the wing surface to the rest of the aircraft. The main structural elements are one or more spars running from root to tip, and many ribs running from the leading (front) to the trailing (rear) edge.
Early airplane engines had little power, and lightness was very important. Also, early airfoil sections were very thin, and could not have a strong frame installed within. So until the 1930s most wings were too lightweight to have enough strength and external bracing struts and wires were added. When the available engine power increased during the 1920s and 30s, wings could be made heavy and strong enough that bracing was not needed any more. This type of unbraced wing is called a cantilever wing.
Wing configuration
Main article: Wing configuration
Captured Morane-Saulnier L wire-braced parasol monoplane
The number and shape of the wings varies widely on different types. A given wing plane may be full-span or divided by a central fuselage into port (left) and starboard (right) wings. Occasionally even more wings have been used, with the three-winged triplane achieving some fame in WWI. The four-winged quadruplane and other multiplane designs have had little success.
A monoplane has a single wing plane, a biplane has two stacked one above the other, a tandem wing has two placed one behind the other. When the available engine power increased during the 1920s and 30s and bracing was no longer needed, the unbraced or cantilever monoplane became the most common form of powered type.
The wing planform is the shape when seen from above. To be aerodynamically efficient, a wing should be straight with a long span from side to side but have a short chord (high aspect ratio). But to be structurally efficient, and hence light weight, a wing must have a short span but still enough area to provide lift (low aspect ratio).
At transonic speeds (near the speed of sound), it helps to sweep the wing backwards or forwards to reduce drag from supersonic shock waves as they begin to form. The swept wing is just a straight wing swept backwards or forwards.
Two Dassault Mirage G prototypes, one with wings swept
The delta wing is a triangle shape which may be used for a number of reasons. As a flexible Rogallo wing it allows a stable shape under aerodynamic forces, and so is often used for ultralight aircraft and even kites. As a supersonic wing it combines high strength with low drag and so is often used for fast jets.
A variable geometry wing can be changed in flight to a different shape. The variable-sweep wing transforms between an efficient straight configuration for takeoff and landing, to a low-drag swept configuration for high-speed flight. Other forms of variable planform have been flown, but none have gone beyond the research stage.
Fuselage
Main article: Fuselage
A fuselage is a long, thin body, usually with tapered or rounded ends to make its shape aerodynamically smooth. The fuselage may contain the flight crew, passengers, cargo or payload, fuel and engines. The pilots of manned aircraft operate them from a cockpit located at the front or top of the fuselage and equipped with controls and usually windows and instruments. A plane may have more than one fuselage, or it may be fitted with booms with the tail located between the booms to allow the extreme rear of the fuselage to be useful for a variety of purposes.
Wings vs. bodies
Flying wing
Main article: Flying wing
The US-produced B-2 Spirit is a strategic bomber. It has a flying wing configuration and is capable of intercontinental missions
A flying wing is a tailless aircraft which has no definite fuselage. Most of the crew, payload and equipment are housed inside the main wing structure.[32]
The flying wing configuration was studied extensively in the 1930s and 1940s, notably by Jack Northrop and Cheston L. Eshelman in the United States, and Alexander Lippisch and the Horten brothers in Germany. After the war, a number of experimental designs were based on the flying wing concept, but the known difficulties remained intractable. Some general interest continued until the early 1950s but designs did not necessarily offer a great advantage in range and presented a number of technical problems, leading to the adoption of "conventional" solutions like the Convair B-36 and the B-52 Stratofortress. Due to the practical need for a deep wing, the flying wing concept is most practical for designs in the slow-to-medium speed range, and there has been continual interest in using it as a tactical airlifter design.
Interest in flying wings was renewed in the 1980s due to their potentially low radar reflection cross-sections. Stealth technology relies on shapes which only reflect radar waves in certain directions, thus making the aircraft hard to detect unless the radar receiver is at a specific position relative to the aircraft - a position that changes continuously as the aircraft moves. This approach eventually led to the Northrop B-2 Spirit stealth bomber. In this case the aerodynamic advantages of the flying wing are not the primary needs. However, modern computer-controlled fly-by-wire systems allowed for many of the aerodynamic drawbacks of the flying wing to be minimized, making for an efficient and stable long-range bomber.
Blended wing body
Main article: Blended wing
Computer-generated model of the Boeing X-48
Blended wing body aircraft have a flattened and airfoil shaped body, which produces most of the lift to keep itself aloft, and distinct and separate wing structures, though the wings are smoothly blended in with the body.
Thus blended wing bodied aircraft incorporate design features from both a futuristic fuselage and flying wing design. The purported advantages of the blended wing body approach are efficient high-lift wings and a wide airfoil-shaped body. This enables the entire craft to contribute to lift generation with the result of potentially increased fuel economy.
Lifting body
The Martin Aircraft Company X-24 was built as part of a 1963 to 1975 experimental US military program.
Main article: Lifting body
A lifting body is a configuration in which the body itself produces lift. In contrast to a flying wing, which is a wing with minimal or no conventional fuselage, a lifting body can be thought of as a fuselage with little or no conventional wing. Whereas a flying wing seeks to maximize cruise efficiency at subsonic speeds by eliminating non-lifting surfaces, lifting bodies generally minimize the drag and structure of a wing for subsonic, supersonic, and hypersonic flight, or, spacecraft re-entry. All of these flight regimes pose challenges for proper flight stability.
Lifting bodies were a major area of research in the 1960s and 70s as a means to build a small and lightweight manned spacecraft. The US built a number of famous lifting body rocket planes to test the concept, as well as several rocket-launched re-entry vehicles that were tested over the Pacific. Interest waned as the US Air Force lost interest in the manned mission, and major development ended during the Space Shuttle design process when it became clear that the highly shaped fuselages made it difficult to fit fuel tankage.
Empennage and foreplane
Main articles: Empennage and Canard (aeronautics)
Canards on the Saab Viggen
The classic airfoil section wing is unstable in flight and difficult to control. Flexible-wing types often rely on an anchor line or the weight of a pilot hanging beneath to maintain the correct attitude. Some free-flying types use an adapted airfoil that is stable, or other ingenious mechanisms including, most recently, electronic artificial stability.
But in order to achieve trim, stability and control, most fixed-wing types have an empennage comprising a fin and rudder which act horizontally and a tailplane and elevator which act vertically. This is so common that it is known as the conventional layout. Sometimes there may be two or more fins, spaced out along the tailplane.
Some types have a horizontal "canard" foreplane ahead of the main wing, instead of behind it.[33][34][35] This foreplane may contribute to the lift, the trim, or control of the aircraft, or to several of these.
Controls and instruments
Main article: Aircraft flight control system
A light aircraft (Robin DR400/500) cockpit
Further information: Fixed-wing aircraft § Aircraft controls, and Fixed-wing aircraft § Cockpit instrumentation
Airplanes have complex flight control systems. The main controls allow the pilot to direct the aircraft in the air by controlling the attitude (roll, pitch and yaw) and engine thrust.
On manned aircraft, cockpit instruments provide information to the pilots, including flight data, engine output, navigation, communications and other aircraft systems that may be installed.
Safety
Main article: Aviation safety
When risk is measured by deaths per passenger kilometer, air travel is approximately 10 times safer than travel by bus or rail. However, when using the deaths per journey statistic, air travel is significantly more dangerous than car, rail, or bus travel.[36] Air travel insurance is relatively expensive for this reason—insurers generally use the deaths per journey statistic.[37] There is a significant difference between the safety of airliners and that of smaller private planes, with the per-mile statistic indicating that airliners are 8.3 times safer than smaller planes.[38]
See also
Aviation portal
Abbas Ibn Firnas
Aircraft flight mechanics
Airliner
Aviation
Aviation and the environment
Aviation history
Fuel efficiency
List of altitude records reached by different aircraft types
Maneuvering speed
Rotorcraft
Wright Brothers
References
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^ Jump up to: a b "Cayley, Sir George: Encyclopædia Britannica 2007." Encyclopædia Britannica Online, 25 August 2007.
Jump up ^ ἀήρ, Henry George Liddell, Robert Scott, A Greek-English Lexicon, on Perseus
Jump up ^ "aeroplane", Merriam-Webster Online Dictionary.
Jump up ^ πλάνος, Henry George Liddell, Robert Scott, A Greek-English Lexicon, on Perseus
Jump up ^ aeroplane, Oxford Dictionaries
^ Jump up to: a b "aeroplane, Oxford English Dictionary online.
Jump up ^ Aulus Gellius, "Attic Nights", Book X, 12.9 at LacusCurtius[permanent dead link]
Jump up ^ "Archytas of Tarentum, Technology Museum of Thessaloniki, Macedonia, Greece". Tmth.edu.gr. Archived from the original on 2008-12-26. Retrieved 2013-05-30.
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Jump up ^ "Automata history". Automata.co.uk. Retrieved 2013-05-30.
Jump up ^ White, Lynn. "Eilmer of Malmesbury, an Eleventh Century Aviator: A Case Study of Technological Innovation, Its Context and Tradition." Technology and Culture, Volume 2, Issue 2, 1961, pp. 97–111 (97–99 resp. 100–101).
Jump up ^ "Aviation History". Retrieved 26 July 2009. In 1799 he set forth for the first time in history the concept of the modern aeroplane. Cayley had identified the drag vector (parallel to the flow) and the lift vector (perpendicular to the flow).
Jump up ^ "Sir George Cayley (British Inventor and Scientist)". Britannica. Retrieved 26 July 2009. English pioneer of aerial navigation and aeronautical engineering and designer of the first successful glider to carry a human being aloft. Cayley established the modern configuration of an airplane as a fixed-wing flying machine with separate systems for lift, propulsion, and control as early as 1799.
Jump up ^ E. Hendrickson III, Kenneth. The Encyclopedia of the Industrial Revolution in World History, Volume 3. pp. Page 10.
Jump up ^ The Journal of San Diego History, July 1968, Vol. 14, No. 3
Jump up ^ Beril, Becker (1967). Dreams and Realities of the Conquest of the Skies. New York: Atheneum. pp. 124–125
Jump up ^ Inglis, Amirah. "Hargrave, Lawrence (1850–1915)". Australian Dictionary of Biography. 9. Melbourne University Press. Retrieved 5 July 2010.
Jump up ^ Gibbs-Smith, Charles H. (3 Apr 1959). "Hops and Flights: A roll call of early powered take-offs". Flight. 75 (2619): 468. Retrieved 24 Aug 2013.
Jump up ^ "European Aeronautic Defence and Space Company EADS N.V.: Eole/Clément Ader"". Archived from the original on October 20, 2007. Retrieved 2007-10-20. CS1 maint: BOT: original-url status unknown (link)
Jump up ^ Gibbs-Smith, Charles Harvard (1968). Clément Ader: His Flight-Claims and His Place in History. Aeronautical engineers. London: Her Majesty's Stationery Office. p. 214.
Jump up ^ "Bernardo Malfitano - AirShowFan.com". airshowfan.com. Archived from the original on 30 March 2013. Retrieved 1 April 2015.
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Jump up ^ Les vols du 14bis relatés au fil des éditions du journal l'illustration de 1906. The wording is: "cette prouesse est le premier vol au monde homologué par l'Aéro-Club de France et la toute jeune Fédération Aéronautique Internationale (FAI)."
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Jump up ^ Crouch, Tom (1982). Bleriot XI, The Story of a Classic Aircraft. Smithsonian Institution Press. pp. 21 and 22. ISBN 0-87474-345-1.
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Jump up ^ Power Beaming Archived 2013-02-17 at the Wayback Machine.. Dfrc.nasa.gov.
Jump up ^ Pipistrel Expands Electric Aircraft Line (2013)
Jump up ^ "Aerospace Welding | Helander Metal". Helander Metal. Retrieved 2017-12-27.
Jump up ^ Crane, Dale: Dictionary of Aeronautical Terms, third edition, page 224. Aviation Supplies & Academics, 1997. ISBN 1-56027-287-2
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Bibliography
Blatner, David. The Flying Book: Everything You've Ever Wondered About Flying On Airplanes. ISBN 0-8027-7691-4
External links
Wikiquote has quotations related to: Airplane
Look up aeroplane, aircraft, or airplane in Wiktionary, the free dictionary.
Wikimedia Commons has media related to Aircraft by type of wing.
The Aeroplane centre
Airliners.net
Aerospaceweb.org
How Airplanes Work – Howstuffworks.com
[show]
v
t
e
Types of aircraft by methods of thrust and lift
Aerostat
Aerodyne
Lift: Lighter than air gas
Lift: Fixed wing
Lift: Unpowered rotor
Lift: Powered rotor
Unpowered free flight
(Free) balloon Glider Helicopter, etc. in autorotation (None – see note 2)
Tethered (static or towed)
Tethered balloon Kite Rotor kite (None – see note 2)
Powered
Airship Airplane, ornithopter, etc. Autogyro Helicopter, gyrodyne
Note 1: A tiltwing or tiltrotor aircraft functions as an aeroplane during normal (horizontal) flight and as a helicopter during low-speed flight.
Note 2: For full-size aircraft with powered rotors the rotor is normally tilted to achieve thrust (e.g. in a helicopter). Some toys (e.g. balloon helicopter) do have a powered rotor with no means to tilt the rotor to produce horizontal thrust.
Note 3: Ground effect vehicles and hovercraft are not included in the table, nor are experimental aircraft with novel thrust / lift solutions (e.g. coleopter, Flying Bedstead, Avrocar and flettner airplane) or balloon-wing hybrids (e.g. kytoon and hybrid airship).
Authority control
GND: 4017672-1
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B-52 Stratofortress

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Blended wing

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Martin Marietta X-24A

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Subsonic flight

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US Air Force

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Saab Viggen

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Avions Robin

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Aircraft attitude

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Abbas Ibn Firnas

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Aviation and the environment

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Wright Brothers

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Vliegtuig – Afrikaans
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values: Самалёт – Belarusian (Taraškievica orthography)

values: हवाई जहाज – Bhojpuri

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Avion – Bosnian
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Nijerez – Breton
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Avion – French
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Etlan – Manx
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Ndege – Kikuyu
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Avion – Croatian
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Aeroplano – Ido
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Avion – Interlingua
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Avion – Interlingue
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Aeroplano – Italian
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Balafir – Kurdish
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Fliger – Luxembourgish
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Reoplan – Lombard
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Vliegtuig – Dutch
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Fly – Norwegian
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Fly – Norwegian Nynorsk
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Avion – Norman
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Avion – Occitan
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Tayyora – Uzbek
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Plien – Jamaican Creole English
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Avion – Piedmontese
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Samolot – Polish
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Samolyot – Kara-Kalpak
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Avion – Romanian
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Bolleri – Romani
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Aeroplani – Albanian
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Lietadlo – Slovak
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Fliger – Silesian
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Diyaarad – Somali
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Avion – Serbo-Croatian
sh
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Lentokone – Finnish
fi
fi
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Flygplan – Swedish
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Eroplano – Tagalog
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Uçak – Turkish
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Feihgih – Zhuang
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Avion – Walloon
wa
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Idro – Waray
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