Wright Flyer
Encyclopedia
The Wright Flyer (often retrospectively referred to as Flyer I or 1903 Flyer) was the first powered aircraft, designed and built by the Wright brothers
Wright brothers
The Wright brothers, Orville and Wilbur , were two Americans credited with inventing and building the world's first successful airplane and making the first controlled, powered and sustained heavier-than-air human flight, on December 17, 1903...
. They flew it four times on December 17, 1903 near the Kill Devil Hills
Kill Devil Hills, North Carolina
Kill Devil Hills is a town in Dare County, North Carolina, USA. The population was 5,897 at the 2000 census.Nearby Kitty Hawk is frequently cited as the location of the Wright brothers' first controlled, powered airplane flights on December 17, 1903...
, about four miles south of Kitty Hawk, North Carolina, U.S.
The U.S. Smithsonian Institution
Smithsonian Institution
The Smithsonian Institution is an educational and research institute and associated museum complex, administered and funded by the government of the United States and by funds from its endowment, contributions, and profits from its retail operations, concessions, licensing activities, and magazines...
describes the aircraft as "...the first powered, heavier-than-air machine to achieve controlled, sustained flight with a pilot aboard." The Fédération Aéronautique Internationale
Fédération Aéronautique Internationale
The Fédération Aéronautique Internationale is the world governing body for air sports and aeronautics and astronautics world records. Its head office is in Lausanne, Switzerland. This includes man-carrying aerospace vehicles from balloons to spacecraft, and unmanned aerial vehicles...
described the 1903 flight during the 100th anniversary in 2003 as "the first sustained and controlled heavier-than-air powered flight."
Design and construction
The Flyer was based on the Wrights' experience testing gliders at Kitty HawkKitty Hawk, North Carolina
Kitty Hawk is a town in Dare County, North Carolina, United States. The population was 3,000 at the 2000 census. It was established in the early 18th century as Chickahawk....
between 1900 and 1902. Their last glider, the 1902 Glider, led directly to the design of the Flyer.
The Wrights built the aircraft in 1903 using 'giant spruce
Sitka Spruce
Picea sitchensis, the Sitka Spruce, is a large coniferous evergreen tree growing to 50–70 m tall, exceptionally to 95 m tall, and with a trunk diameter of up to 5 m, exceptionally to 6–7 m diameter...
' wood as their construction material. The wings were designed with a 1-in-20 camber
Camber (aerodynamics)
Camber, in aeronautics and aeronautical engineering, is the asymmetry between the top and the bottom surfaces of an aerofoil. An aerofoil that is not cambered is called a symmetric aerofoil...
. Since they could not find a suitable automobile engine for the task, they commissioned their employee Charlie Taylor
Charlie Taylor
Charles Edward Taylor built the first aircraft engine used by the Wright brothers and was a vital contributor of mechanical skills in the building and maintaining of early Wright engines and airplanes.-Biography:...
to build a new design from scratch. A sprocket chain drive
Chain drive
Chain drive is a way of transmitting mechanical power from one place to another. It is often used to convey power to the wheels of a vehicle, particularly bicycles and motorcycles...
, borrowing from bicycle
Bicycle
A bicycle, also known as a bike, pushbike or cycle, is a human-powered, pedal-driven, single-track vehicle, having two wheels attached to a frame, one behind the other. A person who rides a bicycle is called a cyclist, or bicyclist....
technology, powered the twin propeller
Propeller (aircraft)
Aircraft propellers or airscrews convert rotary motion from piston engines or turboprops to provide propulsive force. They may be fixed or variable pitch. Early aircraft propellers were carved by hand from solid or laminated wood with later propellers being constructed from metal...
s, which were also made by hand.
The Flyer was a canard
Canard (aeronautics)
In aeronautics, canard is an airframe configuration of fixed-wing aircraft in which the forward surface is smaller than the rearward, the former being known as the "canard", while the latter is the main wing...
biplane configuration. As with the gliders, the pilot flew lying on his stomach on the lower wing with his head toward the front of the craft in an effort to reduce drag. He steered by moving a cradle attached to his hips. The cradle pulled wires which warped the wings
Wing warping
Wing warping was an early system for lateral control of a fixed-wing aircraft. The technique, used and patented by the Wright brothers, consisted of a system of pulleys and cables to twist the trailing edges of the wings in opposite directions...
and turned the rudder simultaneously.
The Flyer's "runway" was a track of 2x4s stood on their narrow edge, which the brothers nicknamed the "Junction Railroad".
Flight tests at Kitty Hawk
Upon returning to Kitty Hawk in 1903, the Wrights completed assembly of the Flyer while practicing on the 1902 Glider from the previous season. On December 14, 1903, they felt ready for their first attempt at powered flight. With the help of men from the nearby government life-saving station, the Wrights moved the Flyer and its launching rail to the incline of a nearby sand dune, Big Kill Devil HillWright Brothers National Memorial
Wright Brothers National Memorial, located in Kill Devil Hills, North Carolina, commemorates the first successful, sustained, powered flights in a heavier-than-air machine. From 1900 to 1903, Wilbur and Orville Wright came here from Dayton, Ohio, based on information from the U.S. Weather Bureau...
, intending to make a gravity-assisted takeoff. The brothers tossed a coin to decide who would get the first chance at piloting and Wilbur won. The airplane left the rail, but Wilbur pulled up too sharply, stalled, and came down in about three seconds with minor damage.
Repairs after the abortive first flight took three days. When they were ready again on December 17, the wind was averaging more than 20 mph, so the brothers laid the launching rail on level ground, pointed into the wind, near their camp. This time the wind, instead of an inclined launch, helped provide the necessary airspeed for takeoff. Because Wilbur already had the first chance, Orville took his turn at the controls. His first flight lasted 12 seconds for a total distance of 120 ft (36.5 m) – shorter than the wingspan of a Boeing 707
Boeing 707
The Boeing 707 is a four-engine narrow-body commercial passenger jet airliner developed by Boeing in the early 1950s. Its name is most commonly pronounced as "Seven Oh Seven". The first airline to operate the 707 was Pan American World Airways, inaugurating the type's first commercial flight on...
, as noted by observers in the 2003 commemoration of the first flight.
Taking turns, the Wrights made four brief, low-altitude flights that day. The flight paths were all essentially straight; turns were not attempted. Each flight ended in a bumpy and unintended "landing". The last flight, by Wilbur, was 852 feet (260 m) in 59 seconds, much longer than each of the three previous flights of 120, 175 and 200 feet. The landing broke the front elevator supports, which the Wrights hoped to repair for a possible four-mile (6 km) flight to Kitty Hawk village. Soon after, a heavy gust picked up the Flyer and tumbled it end over end, damaging it beyond any hope of quick repair. It was never flown again.
In 1904, the Wrights continued refining their designs and piloting techniques in order to obtain fully controlled flight. Major progress toward this goal was achieved with a new Flyer in 1904 and even more decisively in 1905 with a third Flyer, in which Wilbur made a 39-minute, 24 miles (38.6 km) nonstop circling flight on October 5. While the 1903 Flyer was clearly a historically important test vehicle, its hallowed status in the American imagination has obscured the role of its two successors in the continuing development that led to the Wrights' mastery of controlled powered flight in 1905.
The influence of the Flyer
The Flyer series of aircraft were the first to achieve controlled heavier-than-air flight, but some of the mechanical techniques the Wrights used to accomplish this were not influential for the development of aviation as a whole, although their theoretical achievements were. The Flyer design depended on wing-warping and a forward horizontal stabilizer, features which would not scale and produced a hard-to-control aircraft. However, the Wrights' pioneering use of "roll controlFlight dynamics
Flight dynamics is the science of air vehicle orientation and control in three dimensions. The three critical flight dynamics parameters are the angles of rotation in three dimensions about the vehicle's center of mass, known as pitch, roll and yaw .Aerospace engineers develop control systems for...
" by twisting the wings to change wingtip angle in relation to the airstream led directly to the more practical use of aileron
Aileron
Ailerons are hinged flight control surfaces attached to the trailing edge of the wing of a fixed-wing aircraft. The ailerons are used to control the aircraft in roll, which results in a change in heading due to the tilting of the lift vector...
s by their imitators, such as Curtiss
Glenn Curtiss
Glenn Hammond Curtiss was an American aviation pioneer and a founder of the U.S. aircraft industry. He began his career as a bicycle then motorcycle builder and racer, later also manufacturing engines for airships as early as 1906...
and Farman
Henry Farman
Henri Farman Henri Farman Henri Farman (26 May 1874 – 17 July 1958 was a French pilot, aviator and aircraft designer and manufacturer with his brother Maurice Farman. His family was British and he took French nationality in 1937.-Biography:...
. The Wrights' original concept of simultaneous coordinated roll and yaw control (rear rudder deflection), which they discovered in 1902, perfected in 1903–1905, and patented in 1906, represents the solution to controlled flight and is used today on virtually every fixed-wing aircraft. The Wright patent included the use of hinged rather than warped surfaces for the forward elevator and rear rudder. Other features that made the Flyer a success were highly efficient wings and propellers, which resulted from the Wrights' exacting wind tunnel tests and made the most of the marginal power delivered by their early "homebuilt" engines; slow flying speeds (and hence survivable accidents); and an incremental test/development approach. The future of aircraft design, however, lay with rigid wings, ailerons and rear control surfaces.
After a single statement to the press in January 1904 and a failed public demonstration in May, the Wright Brothers did not publicize their efforts, and other aviators who were working on the problem of flight (notably Santos Dumont) were thought by the press to have preceded them by many years. Indeed, several short heavier-than-air powered flights had been made by other aviators before 1903, leading to controversy about precedence (see first flying machine
First flying machine
There are conflicting views as to what was the first flying machine.Much of the debate surrounding records of early flying machines depends on the exact definition of what constitutes a "flying machine", "flight", and even "first"....
). The Wrights, however, claimed to be the first of these which was 'properly controlled'.
The issue of control was correctly seen as critical by the Wrights, and they acquired a wide American patent intended to give them ownership of basic aerodynamic control. This was fought in both American and European courts. European designers, however, were little affected by the litigation and continued their own development. The legal fight in the U.S., however, had a crushing effect on the nascent American aircraft industry, and by the time of World War I
World War I
World War I , which was predominantly called the World War or the Great War from its occurrence until 1939, and the First World War or World War I thereafter, was a major war centred in Europe that began on 28 July 1914 and lasted until 11 November 1918...
, the U.S. had no suitable military aircraft and had to purchase French and British models.
The Flyer after Kitty Hawk
The Wright Brothers returned home to DaytonDayton, Ohio
Dayton is the 6th largest city in the U.S. state of Ohio and the county seat of Montgomery County, the fifth most populous county in the state. The population was 141,527 at the 2010 census. The Dayton Metropolitan Statistical Area had a population of 841,502 in the 2010 census...
for Christmas after the flights of the Flyer. While they had abandoned their other gliders, they realized the historical significance of the Flyer. They crated it and shipped it back to Dayton, where it stayed in storage for 9 years. It was inundated in the Great Dayton Flood
Great Dayton Flood
The Great Dayton Flood of 1913 flooded Dayton, Ohio, and the surrounding area with water from the Great Miami River, causing the greatest natural disaster in Ohio history...
in March 1913.
In 1910 the Wrights first made attempts to exhibit the Flyer in the Smithsonian Institution but talks fell through with the ensuing lawsuits against Glenn Curtiss and the Flyer may have been needed as repeated evidence in court cases. In 1916 as the patent fights were ending, Orville brought the Flyer out of storage and prepared it for display at the Massachusetts Institute of Technology
Massachusetts Institute of Technology
The Massachusetts Institute of Technology is a private research university located in Cambridge, Massachusetts. MIT has five schools and one college, containing a total of 32 academic departments, with a strong emphasis on scientific and technological education and research.Founded in 1861 in...
. (Wilbur had died in 1912.) He replaced parts of the wing covering, the props, and the engine's crankcase, crankshaft, and flywheel. The crankcase, crankshaft and flywheel of the original engine had been sent to the Aero Club of America in New York for an exhibit in 1906 and were never returned to the Wrights. The replacement crankcase, crankshaft and flywheel came from the guinea pig engine Charlie Taylor had built in 1904 and used for testing in the bicycle shop. The crankcase of the flyer remains on display at the visitor center at the Wright Brothers National Memorial
Wright Brothers National Memorial
Wright Brothers National Memorial, located in Kill Devil Hills, North Carolina, commemorates the first successful, sustained, powered flights in a heavier-than-air machine. From 1900 to 1903, Wilbur and Orville Wright came here from Dayton, Ohio, based on information from the U.S. Weather Bureau...
to this day.
Debate with the Smithsonian
The Smithsonian InstitutionSmithsonian Institution
The Smithsonian Institution is an educational and research institute and associated museum complex, administered and funded by the government of the United States and by funds from its endowment, contributions, and profits from its retail operations, concessions, licensing activities, and magazines...
, and primarily its then-secretary Charles Walcott, refused to give credit to the Wright Brothers for the first powered, controlled flight of an aircraft. Instead, they honored the former Smithsonian Secretary Samuel Pierpont Langley
Samuel Pierpont Langley
Samuel Pierpont Langley was an American astronomer, physicist, inventor of the bolometer and pioneer of aviation...
, whose 1903 tests of his own Aerodrome on the Potomac
Potomac River
The Potomac River flows into the Chesapeake Bay, located along the mid-Atlantic coast of the United States. The river is approximately long, with a drainage area of about 14,700 square miles...
were not successful. Walcott was a friend of Langley and wanted to see Langley's place in aviation history restored. In 1914, Glenn Curtiss
Glenn Curtiss
Glenn Hammond Curtiss was an American aviation pioneer and a founder of the U.S. aircraft industry. He began his career as a bicycle then motorcycle builder and racer, later also manufacturing engines for airships as early as 1906...
flew a heavily modified Aerodrome from Keuka Lake
Keuka Lake
Keuka Lake is an unusual member of New York's Finger Lakes because it is Y-shaped, instead of long and narrow. Because of its shape, it was referred to in the past as Crooked Lake...
, N.Y., providing the Smithsonian a basis for its claim that the aircraft was the first powered, heavier than air flying machine "capable" of manned flight. Due to the legal patent battles then taking place, recognition of the 'first' aircraft became a political as well as an academic issue.
In 1925, Orville attempted to persuade the Smithsonian to recognize his and Wilbur's accomplishment by offering to send the Flyer to the Science Museum
Science Museum (London)
The Science Museum is one of the three major museums on Exhibition Road, South Kensington, London in the Royal Borough of Kensington and Chelsea. It is part of the National Museum of Science and Industry. The museum is a major London tourist attraction....
in London
London
London is the capital city of :England and the :United Kingdom, the largest metropolitan area in the United Kingdom, and the largest urban zone in the European Union by most measures. Located on the River Thames, London has been a major settlement for two millennia, its history going back to its...
. This action did not have its intended effect, and the Flyer went on display in the London museum in 1928. During World War II
World War II
World War II, or the Second World War , was a global conflict lasting from 1939 to 1945, involving most of the world's nations—including all of the great powers—eventually forming two opposing military alliances: the Allies and the Axis...
, it was moved to an underground vault 100 miles (160.9 km) from London where Britain's other treasures were kept safe from the conflict.
In 1942 the Smithsonian Institution, under a new secretary, Charles Abbot
Charles Greeley Abbot
Charles Greeley Abbot was an American astrophysicist, astronomer and Secretary of the Smithsonian Institution. He was born in Wilton, New Hampshire.-Life:...
(Walcott had died in 1927), published a list of the Curtiss modifications to the Aerodrome and a retraction of its long-held claims for the craft. The next year, Orville, after exchanging several letters with Abbott, agreed to return the Flyer to the United States. The Flyer stayed at the Science Museum until a replica could be built, based on the original. This change of heart by the Smithsonian is also mired in controversy – the Flyer was sold to the Smithsonian under several contractual conditions, one of which reads:
"Neither the Smithsonian Institution or its successors, nor any museum or other agency, bureau or facilities administered for the United States of America by the Smithsonian Institution or its successors shall publish or permit to be displayed a statement or label in connection with or in respect of any aircraft model or design of earlier date than the Wright Aeroplane of 1903, claiming in effect that such aircraft was capable of carrying a man under its own power in controlled flight."
Some aviation buffs, particularly those who promote the accomplishments of pioneer aviator Gustave Whitehead
Gustave Whitehead
Gustave Albin Whitehead, born Gustav Albin Weisskopf was an aviation pioneer who emigrated from Germany to the U.S., where he designed and built early flying machines and engines meant to power them....
, have commented that this agreement renders the Smithsonian unable to make properly unbiased academic decisions concerning any prior claims of 'first flight'.
In the Smithsonian
National Air and Space Museum
The National Air and Space Museum of the Smithsonian Institution holds the largest collection of historic aircraft and spacecraft in the world. It was established in 1976. Located in Washington, D.C., United States, it is a center for research into the history and science of aviation and...
. Since 2003 it has resided in a special exhibit in the museum titled "The Wright Brothers and the Invention of the Aerial Age", honoring the Wright Brothers in recognition of the 100th anniversary of their first flight.
A piece of fabric and wood from the Wright Flyer was taken to the surface of the Moon by the crew of Apollo 11, the first lunar landing mission, in July 1969.
1985 restoration
In 1981, discussion began on the need to restore the Flyer from the aging it sustained during years on display. During the ceremonies celebrating the 78th anniversary of the first flights, Mrs. Harold S. Miller (Ivonette Wright, Lorin's daughter), one of the Wright brothers' nieces, presented the Museum with the original covering of one wing of the Flyer, which she had received in her inheritance from Orville. She expressed her wish to see the aircraft restored.The fabric covering on the aircraft at the time, which came from the 1927 restoration, was discolored and marked with water spots. Metal fasteners holding the wing uprights together had begun to corrode, marking the nearby fabric.
Walter J. Boyne
Walter J. Boyne is a retired United States Air Force officer, combat veteran, aviation historian, and author of more than 50 books and over 1,000 magazine articles...
decided to perform the restoration in full view of the public.
The wooden framework was cleaned, and corrosion on metal parts removed. The covering was the only part of the aircraft replaced. The new covering was more accurate to the original than that of the 1927 restoration. To preserve the original paint on the engine, the restorers coated it in inert wax before putting on a new coat of paint.
The effects of the 1985 restoration were intended to last 75 years (to 2060) before another restoration would be required.
Flyer reproductions
A number of individuals and groups have attempted to build reproductions of the Wright Flyer for demonstration or scientific purposes.In 1978, 23-year-old Ken Kellett built a replica Flyer in Colorado and flew it at Kitty Hawk on the 75th and 80th anniversaries of the first flight there. Construction took a year and cost $3,000.
As the 100th anniversary on December 17, 2003 approached, the U.S. Centennial of Flight Commission along with other organizations opened bids for companies to recreate the original flight. The Wright Experience, led by Ken Hyde, won the bid and painstakingly recreated reproductions of the original Flyer, plus many of the prototype gliders and kites as well as several subsequent Wright aircraft. The completed Flyer reproduction was brought to Kitty Hawk and pilot Kevin Kochersberger attempted to recreate the original flight at 10:35 AM December 17, 2003 on level ground near the bottom of Kill Devil Hill. Although the aircraft had previously made several successful test flights, sour weather, rain, and weak winds prevented a successful flight on the actual anniversary date. Hyde's reproduction is displayed at the Henry Ford Museum in Dearborn, Michigan.
Numerous static display-only, nonflying reproductions are on display around the United States and across the world, making this perhaps the most reproduced single "pioneer" era aircraft in history.
Specifications (Wright Flyer)
See also
External links
- Nasa.gov
- Wrightflyer.org
- Wrightexperience.com
- Under The Hood of A Wright Flyer Air & Space Magazine
- FAI NEWS: 100 Years Ago, the Dream of Icarus Became Reality, Accessed January 5, 2007.