{"content_id":"eotluxq8xp","slug":"wright-brothers-1903-flight-background-and-breakthrough","locale":"en","schema_type":"Article","category":"case_study","category_name":"Case Study","title":"Wright Brothers' 1903 Flight: Path to Success and Impact","summary":"The Wright brothers' successful flight in 1903 began with rechecking lift data and improving glider controls. To understand its significance, the flight records from December 17 must be distinguished from a transmission error in the telegram.","sponsorship_disclosure":null,"affiliate_disclosure":null,"commerce_disclosure":null,"author":{"name":"Injoys Editorial Team","url":"https://injoys.com/ko/about"},"key_points":["The 1901 glider's lack of lift prompted a reexamination of existing calculations and wing design.","Wind tunnel experiments provided a way to obtain measurements suited to the wing's shape.","The 1902 glider improved control by linking wing warping to a movable rudder.","The first flight on December 17, 1903, lasted 12 seconds, and the last flight that day lasted 59 seconds.","The 57-second figure in the telegram about the first flight was a transmission error and should be distinguished from the longest flight record."],"content_markdown":"The Wright brothers overcame a lack of lift and failures in control through wind tunnel measurements and improvements to their gliders. On **December 17, 1903**, they achieved powered flight. They are remembered for getting a piloted aircraft into the air under its own power and controlling it.\n\nThis article follows flight records from the Library of Congress and explanations from the National Park Service. The sources were checked in October 2026.\n\n## Timeline of the Wright brothers' flight research\n\nThe success of 1903 resulted from repeated improvements to gliders and measuring devices. Before powered flight, the brothers had to solve the problem of controlling an aircraft in the air. Development continued afterward to make a practical airplane.\n\n| Year or date | What happened | Source |\n|---|---|---|\n| 1899 | They requested aeronautical literature from Smithsonian and tested principles of control with a kite. | National Park Service, The Road to the First Flight |\n| 1900 | They began glider experiments at Kitty Hawk. | National Park Service, The Road to the First Flight |\n| 1901 | After encountering insufficient lift and control problems, they tested wings in a wind tunnel. | NASA, Wright 1901 Wind Tunnel Tests |\n| 1902 | They linked the glider's wing-warping system to a movable rudder. | National Park Service, The Road to the First Flight |\n| December 14, 1903 | Wilbur's attempt at powered flight failed, and they repaired the aircraft. | National Park Service, 1903-The First Flight |\n| December 17, 1903 | The brothers took turns making four powered flights. | Library of Congress, First Flight |\n| 1905 | They achieved sustained, turning flight with Flyer III. | Smithsonian, 1903 Wright Flyer |\n\n## How did reading and the bicycle business provide a foundation?\n\nReading and experience making machines were starting points for their flight research. Their home had shelves of theological and general books. Their parents created an environment where their children could investigate what interested them.\n\nIn 1899, Wilbur requested aeronautical literature from Smithsonian. The brothers read earlier research by Otto Lilienthal and others. They also exchanged research findings with engineer Octave Chanute. This background is recorded in the [National Park Service's account of the Wright brothers](https://www.nps.gov/articles/wright-brothers.htm).\n\nThe bicycle business provided funds for their experiments. Repairing and making bicycles also gave them mechanical experience. They used tools and workspace from the bicycle shop to make airplane parts. The [National Park Service's account of their research process](https://www.nps.gov/wrbr/learn/historyculture/theroadtothefirstflight.htm) explains this connection.\n\n## Why did they choose Kitty Hawk?\n\nThe wind and sandy terrain around Kitty Hawk suited their experiments. The brothers requested wind data from the U.S. weather authorities. The sand dunes offered favorable conditions for gliding experiments and landings.\n\nKitty Hawk is a place name widely used when describing the first flight. The actual site of the 1903 flights was nearby Kill Devil Hills. Distinguishing the experimental site from the town where they sent a telegram avoids confusion between the names. [National Park Service educational material about the historic site](https://www.nps.gov/articles/wright-brothers-national-memorial-site-of-the-first-controlled-powered-flight-teaching-with-historic-places.htm) explains the two locations.\n\n## Why did the 1901 glider fall short of expectations?\n\nThe 1901 glider produced less lift than expected. Lift is the component of the force a wing receives from the air that supports the aircraft. The lift measured at the time was about one-third of what their calculations predicted. [NASA's account of the wind tunnel experiments](https://www.grc.nasa.gov/www/k-12/airplane/wrights/test1901.html) explains the difference.\n\nControl posed a separate problem. The aircraft's nose moved up and down unpredictably. When they tilted the wings, the nose sometimes turned opposite to the intended direction.\n\n- Lift problem: The aircraft could not support itself and its pilot as the calculations predicted.\n- Pitch problem: The nose rose too high, making flight unstable.\n- Directional problem: Tilting the wings did not produce the desired turn.\n\nSimply making the wings larger would not solve these problems. The brothers reexamined the figures they had used in their design. The [National Park Service's account](https://www.nps.gov/wrbr/learn/historyculture/theroadtothefirstflight.htm) describes this as the reason they turned to their own measurements.\n\n## The figures corrected by wind tunnel experiments and the conditions for applying them\n\nA wind tunnel is a device for testing models in a steady flow of air. The brothers placed small wings inside a box that produced wind. They used a separate measuring device to compare lift and drag.\n\nDrag is the force that resists an object's movement through air. The brothers examined differences in these forces as they changed wing shapes. In their detailed experiments, they changed one design condition at a time. This method is described in [NASA's account of the 1901 experiments](https://www.grc.nasa.gov/www/k-12/airplane/wrights/test1901.html).\n\nIt would be inaccurate to say that all existing data was wrong. The Smeaton coefficient used in their calculations needed revision. At the time, this coefficient was a standard value used to calculate the effects of air pressure.\n\nLilienthal's measurements involved different conditions of application. The wings he tested had a different shape from the brothers' wings. Applying the same values without adjustment changed the predicted lift. [NASA's account of the lift equation used at the time](https://www1.grc.nasa.gov/beginners-guide-to-aeronautics/lift-equation-of-the-1900s/) points out this difference.\n\n| Item examined | Nature of the problem | Approach to correction |\n|---|---|---|\n| Smeaton coefficient | An error in the standard value used to calculate aerodynamic forces | Reexamine the value against flight experiments |\n| Lilienthal's wing data | Applying data to wings of a different shape | Measure their own wing models |\n| Wing design | Effects of curvature and aspect ratio | Change the design based on measurements |\n\n## Control technology in the 1902 glider\n\nThe turning point in 1902 was controlling the aircraft's movements together. The brothers applied their wind tunnel results to the wing design. They replaced the fixed rear tail fin with a movable rudder.\n\nThey linked the rudder's movement to the wing-warping mechanism. Wing warping varies the lift produced by the left and right wings. The rudder reduced the unwanted change in direction that resulted.\n\n| Movement to control | Meaning | Device used at the time |\n|---|---|---|\n| Pitch | The nose moves up and down | Front elevator |\n| Roll | The left and right wings tilt | Wing-warping mechanism |\n| Yaw | The nose turns left and right | Rear rudder |\n\nA system that controls these three movements is called three-axis control. The brothers had established a basis for control before adding an engine. The [National Park Service's account of their research process](https://www.nps.gov/wrbr/learn/historyculture/theroadtothefirstflight.htm) describes the linked controls as a breakthrough.\n\n## How did they prepare the engine and propellers?\n\nPowered flight required an engine and propellers suited to the aircraft. The brothers could not obtain a suitable lightweight engine. They built one with the help of mechanic Charlie Taylor.\n\nTheir wing research also informed the propeller design. The brothers understood a propeller as a rotating wing that produces force. They arranged for the two propellers to turn in opposite directions. The construction process is covered in the [National Park Service's account](https://www.nps.gov/articles/wright-brothers.htm).\n\n## The December 14 failure and the December 17 flights\n\nThe December 14 attempt failed during control of the aircraft. Wilbur, who made the first attempt, raised the nose too high after takeoff. The aircraft stalled and fell onto the sand.\n\nA stall is a condition in which the wings do not produce enough lift to sustain flight. The brothers repaired the damaged aircraft. On December 17, Orville took the controls first. The [National Park Service's account of the first flight](https://www.nps.gov/wrbr/learn/historyculture/thefirstflight.htm) explains this sequence.\n\nThe first flight began at 10:35 a.m. Orville's flight lasted **12 seconds**. The brothers then took turns making three more flights.\n\n| Flight on December 17, 1903 | Pilot | Flight time | Distance over the ground |\n|---|---|---|---|\n| First | Orville | 12 seconds | 120 feet, 36.576 meters |\n| Second | Wilbur | About 12 seconds | About 175 feet |\n| Third | Orville | About 15 seconds | About 200 feet |\n| Fourth | Wilbur | 59 seconds | 852 feet, 259.6896 meters |\n\nThe flight figures follow the [National Park Service's detailed record](https://www.nps.gov/articles/wright-brothers.htm). The meter values were calculated using 0.3048 meters per foot. The number of decimal places in the conversions does not indicate the precision of the original measurements.\n\nAfter the fourth flight, a strong gust flipped the aircraft over. The damage brought their flying for that year to an end. The 1903 Flyer never flew again. This outcome is confirmed in the [National Park Service's account of the first flight](https://www.nps.gov/wrbr/learn/historyculture/thefirstflight.htm).\n\n## Records and interpretation\n\nThe fact of the flights, assessments of their achievement, and claims of earlier flights should be kept separate. Diaries and telegrams are records of events. Comparing those records to explain the achievement is a matter of historical interpretation.\n\n### How do the diary and telegram differ?\n\nThe longest flight time given in the telegram differs from the actual record. The telegram says 57 seconds. The Library of Congress explains this as a transmission error for 59 seconds.\n\n| Source | What it establishes | What to keep in mind when reading it |\n|---|---|---|\n| Orville's diary entry for December 17, 1903 | Specific details of the day's four flights | It is a record written by a participant. |\n| Telegram to their father | The brothers' report to their family that the flights succeeded | The longest time was incorrectly transmitted as 57 seconds. |\n| Library of Congress explanation of the sources | The relationship between the diary and telegram, and the transmission error | The original records should be distinguished from the institution's explanation. |\n\nThe telegram's figure should therefore not be copied directly into a table of flight performance. The first flight lasted 12 seconds. The fourth flight lasted 59 seconds. The Library of Congress's [First Flight](https://www.loc.gov/collections/wilbur-and-orville-wright-papers/articles-and-essays/collection-highlights/first-flight/) supports this distinction.\n\n### What achievement is recognized in aviation history?\n\nStandard accounts of aviation history recognize the Wright brothers' controlled powered flight. The aircraft in question was heavier than air and carried a person. The achievement also includes taking off under its own power and sustaining flight.\n\nThis does not mean they were the first people to rise into the air. Balloon flights and glider flights have their own earlier histories. Smithsonian's [account of the 1903 Wright Flyer](https://www.si.edu/object/nasm_A19610048000) also describes the aircraft's achievement within these bounds.\n\n### What remains disputed?\n\nThere is still debate about the evidence for claims of earlier flights. Researcher John Brown has argued that Gustave Whitehead flew earlier. A [Smithsonian statement](https://www.si.edu/newsdesk/releases/did-gustave-whitehead-beat-wright-brothers) describes that claim.\n\nAviation historian Tom Crouch assessed the evidence as insufficient. He questioned the reliability of reports from the time and later testimony. His position appears in a [National Air and Space Museum review](https://airandspace.si.edu/stories/editorial/flight-claims-gustave-whitehead).\n\n## The difference between success in 1903 and practical flight in 1905\n\nThe success of the 1903 flights did not mean that a practical airplane was complete. The Flyer was difficult to control in its up-and-down movement. Development continued to keep it flying longer and to change direction.\n\n| Category | 1903 Flyer | 1905 Flyer III |\n|---|---|---|\n| Main achievement | Demonstration of controlled powered flight | Sustained, turning flight |\n| Stage of development | Short flights proved it was possible | Achieved practical operating capability |\n| Historical significance | Establishment of powered flight | Expanded the potential uses of airplanes |\n\nIn 1905, Flyer III repeatedly circled the flying field. Smithsonian describes this period as a stage in the development of a practical airplane. The first success and practical operation should be understood as distinct achievements. [Smithsonian's account of the aircraft](https://www.si.edu/object/nasm_A19610048000) also covers the subsequent development.\n\n## What this case means in the history of science today\n\nThis case shows the importance of the conditions under which measurements are applied to a design. An error in a figure and a difference in what that figure applies to were separate issues. Wind tunnel experiments gave the brothers a way to distinguish them.\n\nIt also matters for how records are read. Even a telegram sent at the time could transmit a number incorrectly. Comparing the diary with the explanation from the institution preserving the records makes it possible to identify the error.\n\n- Experimental design: They controlled conditions to compare the effects of wing shape.\n- Technical development: They applied measurement results to the design of the next aircraft.\n- Review of historical sources: The figures in original records are distinguished from confirmed flight records.\n\nThis significance is an interpretation drawn from [NASA's account of the experiments](https://www.grc.nasa.gov/www/k-12/airplane/wrights/test1901.html). The basis for reviewing the records is the [Library of Congress's explanation of the telegram](https://www.loc.gov/item/mcc.061/). Explaining the achievement solely through personal perseverance leaves out this process of verification.\n\n## Frequently asked questions\n\n### Who piloted the first flight?\n\nOrville piloted the first flight on December 17, 1903. Wilbur made the failed attempt on December 14. On December 17, the brothers took turns making four flights.\n\n### Did the first flight last 12 seconds or 59 seconds?\n\nThe first flight lasted 12 seconds. The 59-second flight was the fourth flight that day, piloted by Wilbur. The 57 seconds in the telegram was a transmission error.\n\n### Did the wind tunnel solve every problem?\n\nThe wind tunnel provided measurements needed for wing design. Control problems also had to be checked in glider flights. The movable rudder introduced in 1902 was part of the improvement.\n\n### Did the Wright brothers only invent an engine?\n\nTheir achievement cannot be explained by the engine alone. They first improved the wings and controls. They then incorporated the engine and propellers into the aircraft.\n\n### Are Kitty Hawk and Kill Devil Hills the same place?\n\nThey are distinct places. The first powered flight took place at Kill Devil Hills. The brothers went to Kitty Hawk to send their father a telegram.","content_html":"\u003cp\u003eThe Wright brothers overcame a lack of lift and failures in control through wind tunnel measurements and improvements to their gliders. On \u003cstrong\u003eDecember 17, 1903\u003c/strong\u003e, they achieved powered flight. They are remembered for getting a piloted aircraft into the air under its own power and controlling it.\u003c/p\u003e\n\u003cp\u003eThis article follows flight records from the Library of Congress and explanations from the National Park Service. The sources were checked in October 2026.\u003c/p\u003e\n\u003ch2\u003e\n\u003ca href=\"#timeline-of-the-wright-brothers-flight-research\" class=\"anchor\" id=\"timeline-of-the-wright-brothers-flight-research\"\u003e\u003c/a\u003eTimeline of the Wright brothers' flight research\u003c/h2\u003e\n\u003cp\u003eThe success of 1903 resulted from repeated improvements to gliders and measuring devices. Before powered flight, the brothers had to solve the problem of controlling an aircraft in the air. Development continued afterward to make a practical airplane.\u003c/p\u003e\n\u003cdiv class=\"overflow-x-auto\"\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eYear or date\u003c/th\u003e\n\u003cth\u003eWhat happened\u003c/th\u003e\n\u003cth\u003eSource\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Year or date\"\u003e1899\u003c/td\u003e\n\u003ctd data-label=\"What happened\"\u003eThey requested aeronautical literature from Smithsonian and tested principles of control with a kite.\u003c/td\u003e\n\u003ctd data-label=\"Source\"\u003eNational Park Service, The Road to the First Flight\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Year or date\"\u003e1900\u003c/td\u003e\n\u003ctd data-label=\"What happened\"\u003eThey began glider experiments at Kitty Hawk.\u003c/td\u003e\n\u003ctd data-label=\"Source\"\u003eNational Park Service, The Road to the First Flight\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Year or date\"\u003e1901\u003c/td\u003e\n\u003ctd data-label=\"What happened\"\u003eAfter encountering insufficient lift and control problems, they tested wings in a wind tunnel.\u003c/td\u003e\n\u003ctd data-label=\"Source\"\u003eNASA, Wright 1901 Wind Tunnel Tests\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Year or date\"\u003e1902\u003c/td\u003e\n\u003ctd data-label=\"What happened\"\u003eThey linked the glider's wing-warping system to a movable rudder.\u003c/td\u003e\n\u003ctd data-label=\"Source\"\u003eNational Park Service, The Road to the First Flight\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Year or date\"\u003eDecember 14, 1903\u003c/td\u003e\n\u003ctd data-label=\"What happened\"\u003eWilbur's attempt at powered flight failed, and they repaired the aircraft.\u003c/td\u003e\n\u003ctd data-label=\"Source\"\u003eNational Park Service, 1903-The First Flight\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Year or date\"\u003eDecember 17, 1903\u003c/td\u003e\n\u003ctd data-label=\"What happened\"\u003eThe brothers took turns making four powered flights.\u003c/td\u003e\n\u003ctd data-label=\"Source\"\u003eLibrary of Congress, First Flight\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Year or date\"\u003e1905\u003c/td\u003e\n\u003ctd data-label=\"What happened\"\u003eThey achieved sustained, turning flight with Flyer III.\u003c/td\u003e\n\u003ctd data-label=\"Source\"\u003eSmithsonian, 1903 Wright Flyer\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/div\u003e\n\u003ch2\u003e\n\u003ca href=\"#how-did-reading-and-the-bicycle-business-provide-a-foundation\" class=\"anchor\" id=\"how-did-reading-and-the-bicycle-business-provide-a-foundation\"\u003e\u003c/a\u003eHow did reading and the bicycle business provide a foundation?\u003c/h2\u003e\n\u003cp\u003eReading and experience making machines were starting points for their flight research. Their home had shelves of theological and general books. Their parents created an environment where their children could investigate what interested them.\u003c/p\u003e\n\u003cp\u003eIn 1899, Wilbur requested aeronautical literature from Smithsonian. The brothers read earlier research by Otto Lilienthal and others. They also exchanged research findings with engineer Octave Chanute. This background is recorded in the \u003ca href=\"https://www.nps.gov/articles/wright-brothers.htm\"\u003eNational Park Service's account of the Wright brothers\u003c/a\u003e.\u003c/p\u003e\n\u003cp\u003eThe bicycle business provided funds for their experiments. Repairing and making bicycles also gave them mechanical experience. They used tools and workspace from the bicycle shop to make airplane parts. The \u003ca href=\"https://www.nps.gov/wrbr/learn/historyculture/theroadtothefirstflight.htm\"\u003eNational Park Service's account of their research process\u003c/a\u003e explains this connection.\u003c/p\u003e\n\u003ch2\u003e\n\u003ca href=\"#why-did-they-choose-kitty-hawk\" class=\"anchor\" id=\"why-did-they-choose-kitty-hawk\"\u003e\u003c/a\u003eWhy did they choose Kitty Hawk?\u003c/h2\u003e\n\u003cp\u003eThe wind and sandy terrain around Kitty Hawk suited their experiments. The brothers requested wind data from the U.S. weather authorities. The sand dunes offered favorable conditions for gliding experiments and landings.\u003c/p\u003e\n\u003cp\u003eKitty Hawk is a place name widely used when describing the first flight. The actual site of the 1903 flights was nearby Kill Devil Hills. Distinguishing the experimental site from the town where they sent a telegram avoids confusion between the names. \u003ca href=\"https://www.nps.gov/articles/wright-brothers-national-memorial-site-of-the-first-controlled-powered-flight-teaching-with-historic-places.htm\"\u003eNational Park Service educational material about the historic site\u003c/a\u003e explains the two locations.\u003c/p\u003e\n\u003ch2\u003e\n\u003ca href=\"#why-did-the-1901-glider-fall-short-of-expectations\" class=\"anchor\" id=\"why-did-the-1901-glider-fall-short-of-expectations\"\u003e\u003c/a\u003eWhy did the 1901 glider fall short of expectations?\u003c/h2\u003e\n\u003cp\u003eThe 1901 glider produced less lift than expected. Lift is the component of the force a wing receives from the air that supports the aircraft. The lift measured at the time was about one-third of what their calculations predicted. \u003ca href=\"https://www.grc.nasa.gov/www/k-12/airplane/wrights/test1901.html\"\u003eNASA's account of the wind tunnel experiments\u003c/a\u003e explains the difference.\u003c/p\u003e\n\u003cp\u003eControl posed a separate problem. The aircraft's nose moved up and down unpredictably. When they tilted the wings, the nose sometimes turned opposite to the intended direction.\u003c/p\u003e\n\u003cul\u003e\n\u003cli\u003eLift problem: The aircraft could not support itself and its pilot as the calculations predicted.\u003c/li\u003e\n\u003cli\u003ePitch problem: The nose rose too high, making flight unstable.\u003c/li\u003e\n\u003cli\u003eDirectional problem: Tilting the wings did not produce the desired turn.\u003c/li\u003e\n\u003c/ul\u003e\n\u003cp\u003eSimply making the wings larger would not solve these problems. The brothers reexamined the figures they had used in their design. The \u003ca href=\"https://www.nps.gov/wrbr/learn/historyculture/theroadtothefirstflight.htm\"\u003eNational Park Service's account\u003c/a\u003e describes this as the reason they turned to their own measurements.\u003c/p\u003e\n\u003ch2\u003e\n\u003ca href=\"#the-figures-corrected-by-wind-tunnel-experiments-and-the-conditions-for-applying-them\" class=\"anchor\" id=\"the-figures-corrected-by-wind-tunnel-experiments-and-the-conditions-for-applying-them\"\u003e\u003c/a\u003eThe figures corrected by wind tunnel experiments and the conditions for applying them\u003c/h2\u003e\n\u003cp\u003eA wind tunnel is a device for testing models in a steady flow of air. The brothers placed small wings inside a box that produced wind. They used a separate measuring device to compare lift and drag.\u003c/p\u003e\n\u003cp\u003eDrag is the force that resists an object's movement through air. The brothers examined differences in these forces as they changed wing shapes. In their detailed experiments, they changed one design condition at a time. This method is described in \u003ca href=\"https://www.grc.nasa.gov/www/k-12/airplane/wrights/test1901.html\"\u003eNASA's account of the 1901 experiments\u003c/a\u003e.\u003c/p\u003e\n\u003cp\u003eIt would be inaccurate to say that all existing data was wrong. The Smeaton coefficient used in their calculations needed revision. At the time, this coefficient was a standard value used to calculate the effects of air pressure.\u003c/p\u003e\n\u003cp\u003eLilienthal's measurements involved different conditions of application. The wings he tested had a different shape from the brothers' wings. Applying the same values without adjustment changed the predicted lift. \u003ca href=\"https://www1.grc.nasa.gov/beginners-guide-to-aeronautics/lift-equation-of-the-1900s/\"\u003eNASA's account of the lift equation used at the time\u003c/a\u003e points out this difference.\u003c/p\u003e\n\u003cdiv class=\"overflow-x-auto\"\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eItem examined\u003c/th\u003e\n\u003cth\u003eNature of the problem\u003c/th\u003e\n\u003cth\u003eApproach to correction\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Item examined\"\u003eSmeaton coefficient\u003c/td\u003e\n\u003ctd data-label=\"Nature of the problem\"\u003eAn error in the standard value used to calculate aerodynamic forces\u003c/td\u003e\n\u003ctd data-label=\"Approach to correction\"\u003eReexamine the value against flight experiments\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Item examined\"\u003eLilienthal's wing data\u003c/td\u003e\n\u003ctd data-label=\"Nature of the problem\"\u003eApplying data to wings of a different shape\u003c/td\u003e\n\u003ctd data-label=\"Approach to correction\"\u003eMeasure their own wing models\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Item examined\"\u003eWing design\u003c/td\u003e\n\u003ctd data-label=\"Nature of the problem\"\u003eEffects of curvature and aspect ratio\u003c/td\u003e\n\u003ctd data-label=\"Approach to correction\"\u003eChange the design based on measurements\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/div\u003e\n\u003ch2\u003e\n\u003ca href=\"#control-technology-in-the-1902-glider\" class=\"anchor\" id=\"control-technology-in-the-1902-glider\"\u003e\u003c/a\u003eControl technology in the 1902 glider\u003c/h2\u003e\n\u003cp\u003eThe turning point in 1902 was controlling the aircraft's movements together. The brothers applied their wind tunnel results to the wing design. They replaced the fixed rear tail fin with a movable rudder.\u003c/p\u003e\n\u003cp\u003eThey linked the rudder's movement to the wing-warping mechanism. Wing warping varies the lift produced by the left and right wings. The rudder reduced the unwanted change in direction that resulted.\u003c/p\u003e\n\u003cdiv class=\"overflow-x-auto\"\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eMovement to control\u003c/th\u003e\n\u003cth\u003eMeaning\u003c/th\u003e\n\u003cth\u003eDevice used at the time\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Movement to control\"\u003ePitch\u003c/td\u003e\n\u003ctd data-label=\"Meaning\"\u003eThe nose moves up and down\u003c/td\u003e\n\u003ctd data-label=\"Device used at the time\"\u003eFront elevator\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Movement to control\"\u003eRoll\u003c/td\u003e\n\u003ctd data-label=\"Meaning\"\u003eThe left and right wings tilt\u003c/td\u003e\n\u003ctd data-label=\"Device used at the time\"\u003eWing-warping mechanism\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Movement to control\"\u003eYaw\u003c/td\u003e\n\u003ctd data-label=\"Meaning\"\u003eThe nose turns left and right\u003c/td\u003e\n\u003ctd data-label=\"Device used at the time\"\u003eRear rudder\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/div\u003e\n\u003cp\u003eA system that controls these three movements is called three-axis control. The brothers had established a basis for control before adding an engine. The \u003ca href=\"https://www.nps.gov/wrbr/learn/historyculture/theroadtothefirstflight.htm\"\u003eNational Park Service's account of their research process\u003c/a\u003e describes the linked controls as a breakthrough.\u003c/p\u003e\n\u003ch2\u003e\n\u003ca href=\"#how-did-they-prepare-the-engine-and-propellers\" class=\"anchor\" id=\"how-did-they-prepare-the-engine-and-propellers\"\u003e\u003c/a\u003eHow did they prepare the engine and propellers?\u003c/h2\u003e\n\u003cp\u003ePowered flight required an engine and propellers suited to the aircraft. The brothers could not obtain a suitable lightweight engine. They built one with the help of mechanic Charlie Taylor.\u003c/p\u003e\n\u003cp\u003eTheir wing research also informed the propeller design. The brothers understood a propeller as a rotating wing that produces force. They arranged for the two propellers to turn in opposite directions. The construction process is covered in the \u003ca href=\"https://www.nps.gov/articles/wright-brothers.htm\"\u003eNational Park Service's account\u003c/a\u003e.\u003c/p\u003e\n\u003ch2\u003e\n\u003ca href=\"#the-december-14-failure-and-the-december-17-flights\" class=\"anchor\" id=\"the-december-14-failure-and-the-december-17-flights\"\u003e\u003c/a\u003eThe December 14 failure and the December 17 flights\u003c/h2\u003e\n\u003cp\u003eThe December 14 attempt failed during control of the aircraft. Wilbur, who made the first attempt, raised the nose too high after takeoff. The aircraft stalled and fell onto the sand.\u003c/p\u003e\n\u003cp\u003eA stall is a condition in which the wings do not produce enough lift to sustain flight. The brothers repaired the damaged aircraft. On December 17, Orville took the controls first. The \u003ca href=\"https://www.nps.gov/wrbr/learn/historyculture/thefirstflight.htm\"\u003eNational Park Service's account of the first flight\u003c/a\u003e explains this sequence.\u003c/p\u003e\n\u003cp\u003eThe first flight began at 10:35 a.m. Orville's flight lasted \u003cstrong\u003e12 seconds\u003c/strong\u003e. The brothers then took turns making three more flights.\u003c/p\u003e\n\u003cdiv class=\"overflow-x-auto\"\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eFlight on December 17, 1903\u003c/th\u003e\n\u003cth\u003ePilot\u003c/th\u003e\n\u003cth\u003eFlight time\u003c/th\u003e\n\u003cth\u003eDistance over the ground\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Flight on December 17, 1903\"\u003eFirst\u003c/td\u003e\n\u003ctd data-label=\"Pilot\"\u003eOrville\u003c/td\u003e\n\u003ctd data-label=\"Flight time\"\u003e12 seconds\u003c/td\u003e\n\u003ctd data-label=\"Distance over the ground\"\u003e120 feet, 36.576 meters\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Flight on December 17, 1903\"\u003eSecond\u003c/td\u003e\n\u003ctd data-label=\"Pilot\"\u003eWilbur\u003c/td\u003e\n\u003ctd data-label=\"Flight time\"\u003eAbout 12 seconds\u003c/td\u003e\n\u003ctd data-label=\"Distance over the ground\"\u003eAbout 175 feet\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Flight on December 17, 1903\"\u003eThird\u003c/td\u003e\n\u003ctd data-label=\"Pilot\"\u003eOrville\u003c/td\u003e\n\u003ctd data-label=\"Flight time\"\u003eAbout 15 seconds\u003c/td\u003e\n\u003ctd data-label=\"Distance over the ground\"\u003eAbout 200 feet\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Flight on December 17, 1903\"\u003eFourth\u003c/td\u003e\n\u003ctd data-label=\"Pilot\"\u003eWilbur\u003c/td\u003e\n\u003ctd data-label=\"Flight time\"\u003e59 seconds\u003c/td\u003e\n\u003ctd data-label=\"Distance over the ground\"\u003e852 feet, 259.6896 meters\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/div\u003e\n\u003cp\u003eThe flight figures follow the \u003ca href=\"https://www.nps.gov/articles/wright-brothers.htm\"\u003eNational Park Service's detailed record\u003c/a\u003e. The meter values were calculated using 0.3048 meters per foot. The number of decimal places in the conversions does not indicate the precision of the original measurements.\u003c/p\u003e\n\u003cp\u003eAfter the fourth flight, a strong gust flipped the aircraft over. The damage brought their flying for that year to an end. The 1903 Flyer never flew again. This outcome is confirmed in the \u003ca href=\"https://www.nps.gov/wrbr/learn/historyculture/thefirstflight.htm\"\u003eNational Park Service's account of the first flight\u003c/a\u003e.\u003c/p\u003e\n\u003ch2\u003e\n\u003ca href=\"#records-and-interpretation\" class=\"anchor\" id=\"records-and-interpretation\"\u003e\u003c/a\u003eRecords and interpretation\u003c/h2\u003e\n\u003cp\u003eThe fact of the flights, assessments of their achievement, and claims of earlier flights should be kept separate. Diaries and telegrams are records of events. Comparing those records to explain the achievement is a matter of historical interpretation.\u003c/p\u003e\n\u003ch3\u003e\n\u003ca href=\"#how-do-the-diary-and-telegram-differ\" class=\"anchor\" id=\"how-do-the-diary-and-telegram-differ\"\u003e\u003c/a\u003eHow do the diary and telegram differ?\u003c/h3\u003e\n\u003cp\u003eThe longest flight time given in the telegram differs from the actual record. The telegram says 57 seconds. The Library of Congress explains this as a transmission error for 59 seconds.\u003c/p\u003e\n\u003cdiv class=\"overflow-x-auto\"\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSource\u003c/th\u003e\n\u003cth\u003eWhat it establishes\u003c/th\u003e\n\u003cth\u003eWhat to keep in mind when reading it\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Source\"\u003eOrville's diary entry for December 17, 1903\u003c/td\u003e\n\u003ctd data-label=\"What it establishes\"\u003eSpecific details of the day's four flights\u003c/td\u003e\n\u003ctd data-label=\"What to keep in mind when reading it\"\u003eIt is a record written by a participant.\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Source\"\u003eTelegram to their father\u003c/td\u003e\n\u003ctd data-label=\"What it establishes\"\u003eThe brothers' report to their family that the flights succeeded\u003c/td\u003e\n\u003ctd data-label=\"What to keep in mind when reading it\"\u003eThe longest time was incorrectly transmitted as 57 seconds.\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Source\"\u003eLibrary of Congress explanation of the sources\u003c/td\u003e\n\u003ctd data-label=\"What it establishes\"\u003eThe relationship between the diary and telegram, and the transmission error\u003c/td\u003e\n\u003ctd data-label=\"What to keep in mind when reading it\"\u003eThe original records should be distinguished from the institution's explanation.\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/div\u003e\n\u003cp\u003eThe telegram's figure should therefore not be copied directly into a table of flight performance. The first flight lasted 12 seconds. The fourth flight lasted 59 seconds. The Library of Congress's \u003ca href=\"https://www.loc.gov/collections/wilbur-and-orville-wright-papers/articles-and-essays/collection-highlights/first-flight/\"\u003eFirst Flight\u003c/a\u003e supports this distinction.\u003c/p\u003e\n\u003ch3\u003e\n\u003ca href=\"#what-achievement-is-recognized-in-aviation-history\" class=\"anchor\" id=\"what-achievement-is-recognized-in-aviation-history\"\u003e\u003c/a\u003eWhat achievement is recognized in aviation history?\u003c/h3\u003e\n\u003cp\u003eStandard accounts of aviation history recognize the Wright brothers' controlled powered flight. The aircraft in question was heavier than air and carried a person. The achievement also includes taking off under its own power and sustaining flight.\u003c/p\u003e\n\u003cp\u003eThis does not mean they were the first people to rise into the air. Balloon flights and glider flights have their own earlier histories. Smithsonian's \u003ca href=\"https://www.si.edu/object/nasm_A19610048000\"\u003eaccount of the 1903 Wright Flyer\u003c/a\u003e also describes the aircraft's achievement within these bounds.\u003c/p\u003e\n\u003ch3\u003e\n\u003ca href=\"#what-remains-disputed\" class=\"anchor\" id=\"what-remains-disputed\"\u003e\u003c/a\u003eWhat remains disputed?\u003c/h3\u003e\n\u003cp\u003eThere is still debate about the evidence for claims of earlier flights. Researcher John Brown has argued that Gustave Whitehead flew earlier. A \u003ca href=\"https://www.si.edu/newsdesk/releases/did-gustave-whitehead-beat-wright-brothers\"\u003eSmithsonian statement\u003c/a\u003e describes that claim.\u003c/p\u003e\n\u003cp\u003eAviation historian Tom Crouch assessed the evidence as insufficient. He questioned the reliability of reports from the time and later testimony. His position appears in a \u003ca href=\"https://airandspace.si.edu/stories/editorial/flight-claims-gustave-whitehead\"\u003eNational Air and Space Museum review\u003c/a\u003e.\u003c/p\u003e\n\u003ch2\u003e\n\u003ca href=\"#the-difference-between-success-in-1903-and-practical-flight-in-1905\" class=\"anchor\" id=\"the-difference-between-success-in-1903-and-practical-flight-in-1905\"\u003e\u003c/a\u003eThe difference between success in 1903 and practical flight in 1905\u003c/h2\u003e\n\u003cp\u003eThe success of the 1903 flights did not mean that a practical airplane was complete. The Flyer was difficult to control in its up-and-down movement. Development continued to keep it flying longer and to change direction.\u003c/p\u003e\n\u003cdiv class=\"overflow-x-auto\"\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eCategory\u003c/th\u003e\n\u003cth\u003e1903 Flyer\u003c/th\u003e\n\u003cth\u003e1905 Flyer III\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Category\"\u003eMain achievement\u003c/td\u003e\n\u003ctd data-label=\"1903 Flyer\"\u003eDemonstration of controlled powered flight\u003c/td\u003e\n\u003ctd data-label=\"1905 Flyer III\"\u003eSustained, turning flight\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Category\"\u003eStage of development\u003c/td\u003e\n\u003ctd data-label=\"1903 Flyer\"\u003eShort flights proved it was possible\u003c/td\u003e\n\u003ctd data-label=\"1905 Flyer III\"\u003eAchieved practical operating capability\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Category\"\u003eHistorical significance\u003c/td\u003e\n\u003ctd data-label=\"1903 Flyer\"\u003eEstablishment of powered flight\u003c/td\u003e\n\u003ctd data-label=\"1905 Flyer III\"\u003eExpanded the potential uses of airplanes\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/div\u003e\n\u003cp\u003eIn 1905, Flyer III repeatedly circled the flying field. Smithsonian describes this period as a stage in the development of a practical airplane. The first success and practical operation should be understood as distinct achievements. \u003ca href=\"https://www.si.edu/object/nasm_A19610048000\"\u003eSmithsonian's account of the aircraft\u003c/a\u003e also covers the subsequent development.\u003c/p\u003e\n\u003ch2\u003e\n\u003ca href=\"#what-this-case-means-in-the-history-of-science-today\" class=\"anchor\" id=\"what-this-case-means-in-the-history-of-science-today\"\u003e\u003c/a\u003eWhat this case means in the history of science today\u003c/h2\u003e\n\u003cp\u003eThis case shows the importance of the conditions under which measurements are applied to a design. An error in a figure and a difference in what that figure applies to were separate issues. Wind tunnel experiments gave the brothers a way to distinguish them.\u003c/p\u003e\n\u003cp\u003eIt also matters for how records are read. Even a telegram sent at the time could transmit a number incorrectly. Comparing the diary with the explanation from the institution preserving the records makes it possible to identify the error.\u003c/p\u003e\n\u003cul\u003e\n\u003cli\u003eExperimental design: They controlled conditions to compare the effects of wing shape.\u003c/li\u003e\n\u003cli\u003eTechnical development: They applied measurement results to the design of the next aircraft.\u003c/li\u003e\n\u003cli\u003eReview of historical sources: The figures in original records are distinguished from confirmed flight records.\u003c/li\u003e\n\u003c/ul\u003e\n\u003cp\u003eThis significance is an interpretation drawn from \u003ca href=\"https://www.grc.nasa.gov/www/k-12/airplane/wrights/test1901.html\"\u003eNASA's account of the experiments\u003c/a\u003e. The basis for reviewing the records is the \u003ca href=\"https://www.loc.gov/item/mcc.061/\"\u003eLibrary of Congress's explanation of the telegram\u003c/a\u003e. Explaining the achievement solely through personal perseverance leaves out this process of verification.\u003c/p\u003e\n\u003ch2\u003e\n\u003ca href=\"#frequently-asked-questions\" class=\"anchor\" id=\"frequently-asked-questions\"\u003e\u003c/a\u003eFrequently asked questions\u003c/h2\u003e\n\u003ch3\u003e\n\u003ca href=\"#who-piloted-the-first-flight\" class=\"anchor\" id=\"who-piloted-the-first-flight\"\u003e\u003c/a\u003eWho piloted the first flight?\u003c/h3\u003e\n\u003cp\u003eOrville piloted the first flight on December 17, 1903. Wilbur made the failed attempt on December 14. On December 17, the brothers took turns making four flights.\u003c/p\u003e\n\u003ch3\u003e\n\u003ca href=\"#did-the-first-flight-last-12-seconds-or-59-seconds\" class=\"anchor\" id=\"did-the-first-flight-last-12-seconds-or-59-seconds\"\u003e\u003c/a\u003eDid the first flight last 12 seconds or 59 seconds?\u003c/h3\u003e\n\u003cp\u003eThe first flight lasted 12 seconds. The 59-second flight was the fourth flight that day, piloted by Wilbur. The 57 seconds in the telegram was a transmission error.\u003c/p\u003e\n\u003ch3\u003e\n\u003ca href=\"#did-the-wind-tunnel-solve-every-problem\" class=\"anchor\" id=\"did-the-wind-tunnel-solve-every-problem\"\u003e\u003c/a\u003eDid the wind tunnel solve every problem?\u003c/h3\u003e\n\u003cp\u003eThe wind tunnel provided measurements needed for wing design. Control problems also had to be checked in glider flights. The movable rudder introduced in 1902 was part of the improvement.\u003c/p\u003e\n\u003ch3\u003e\n\u003ca href=\"#did-the-wright-brothers-only-invent-an-engine\" class=\"anchor\" id=\"did-the-wright-brothers-only-invent-an-engine\"\u003e\u003c/a\u003eDid the Wright brothers only invent an engine?\u003c/h3\u003e\n\u003cp\u003eTheir achievement cannot be explained by the engine alone. They first improved the wings and controls. They then incorporated the engine and propellers into the aircraft.\u003c/p\u003e\n\u003ch3\u003e\n\u003ca href=\"#are-kitty-hawk-and-kill-devil-hills-the-same-place\" class=\"anchor\" id=\"are-kitty-hawk-and-kill-devil-hills-the-same-place\"\u003e\u003c/a\u003eAre Kitty Hawk and Kill Devil Hills the same place?\u003c/h3\u003e\n\u003cp\u003eThey are distinct places. The first powered flight took place at Kill Devil Hills. The brothers went to Kitty Hawk to send their father a telegram.\u003c/p\u003e\n","tags":["Airline","History of science"],"faqs":[{"question":"When did the Wright brothers achieve powered flight?","answer":"They achieved controlled powered flight on December 17, 1903. It took place at Kill Devil Hills, North Carolina, in the United States."},{"question":"Who piloted the first flight, and what were its recorded figures?","answer":"Orville Wright piloted the first flight. It lasted 12 seconds and covered 120 feet over the ground."},{"question":"How long was the longest flight on December 17, 1903?","answer":"The fourth flight, piloted by Wilbur, was the longest. It lasted 59 seconds and covered 852 feet over the ground."},{"question":"Why did the telegram announcing the first flight say 57 seconds?","answer":"The Library of Congress explains that 59 seconds was mistakenly transmitted as 57 seconds. The wording of the telegram should be distinguished from the verified flight record."},{"question":"What problems emerged with the 1901 glider?","answer":"It produced less lift than expected. There were also problems controlling the aircraft's pitch and direction."},{"question":"Was all of Lilienthal's lift data wrong?","answer":"That cannot be stated definitively. NASA explains that the problem was applying Lilienthal's data to wings of a different shape. Separately, the Smeaton coefficient also needed to be corrected."},{"question":"What was the key improvement to the 1902 glider?","answer":"The wing-warping mechanism was linked to a movable rudder. This helped reduce unwanted changes in direction when the aircraft banked."},{"question":"Why did the attempt on December 14, 1903, fail?","answer":"Wilbur raised the nose too high after takeoff, causing the aircraft to stall. The brothers repaired the damage and tried again on December 17."},{"question":"Why was Kitty Hawk chosen as the testing site?","answer":"The wind conditions and sandy terrain were suitable for glider experiments. Before choosing the site, the brothers reviewed data from U.S. weather authorities."},{"question":"How did the bicycle business help with airplane development?","answer":"It provided a way to fund their experiments. Their repair and manufacturing experience, along with their tools, also helped them develop the airplane."},{"question":"Did the Wright brothers begin their aviation research on their own?","answer":"They began by reading earlier research by Lilienthal and others. They obtained publications from the Smithsonian and exchanged research findings with Chanute."},{"question":"Was the 1903 Flyer already a practical airplane?","answer":"The 1903 aircraft demonstrated controlled powered flight. The development of a practical aircraft capable of sustained turns continued with the 1905 Flyer III."}],"sources":[{"url":"https://www.nps.gov/wrbr/learn/historyculture/theroadtothefirstflight.htm","title":"U.S. National Park Service, The Road to the First Flight","type":"source"},{"url":"https://www.nps.gov/wrbr/learn/historyculture/thefirstflight.htm","title":"U.S. National Park Service, 1903-The First Flight","type":"source"},{"url":"https://www.nps.gov/articles/wright-brothers.htm","title":"U.S. National Park Service, Wright Brothers","type":"source"},{"url":"https://www.nps.gov/articles/wright-brothers-national-memorial-site-of-the-first-controlled-powered-flight-teaching-with-historic-places.htm","title":"U.S. National Park Service, Wright Brothers National Memorial: Site of the First Controlled Powered Flight","type":"source"},{"url":"https://www.grc.nasa.gov/www/k-12/airplane/wrights/test1901.html","title":"NASA Glenn Research Center, Wright 1901 Wind Tunnel Tests","type":"data_point"},{"url":"https://www1.grc.nasa.gov/beginners-guide-to-aeronautics/lift-equation-of-the-1900s/","title":"NASA Glenn Research Center, Lift Equation of the 1900's","type":"source"},{"url":"https://www.loc.gov/collections/wilbur-and-orville-wright-papers/articles-and-essays/collection-highlights/first-flight/","title":"Library of Congress, First Flight: Commentary on Orville's diary and the first-flight telegram","type":"source"},{"url":"https://www.loc.gov/item/mcc.061/","title":"Library of Congress, Orville's December 17, 1903 telegram to Milton Wright and commentary","type":"data_point"},{"url":"https://www.si.edu/object/nasm_A19610048000","title":"Smithsonian Institution, 1903 Wright Flyer","type":"source"},{"url":"https://www.si.edu/newsdesk/releases/did-gustave-whitehead-beat-wright-brothers","title":"Smithsonian Institution, Did Gustave Whitehead Beat the Wright Brothers?","type":"source"},{"url":"https://airandspace.si.edu/stories/editorial/flight-claims-gustave-whitehead","title":"Smithsonian National Air and Space Museum, Tom Crouch's review of the claim that Whitehead flew first","type":"source"}],"images":[{"id":1776,"url":"https://injoys.com/rails/active_storage/blobs/proxy/eyJfcmFpbHMiOnsiZGF0YSI6MjcyMjYsInB1ciI6ImJsb2JfaWQifX0=--9d682519281009458c1139bb71a792928df4d3bd/ai-641146e2.webp","is_representative":false,"generation_method":"ai_semi","license":"ai_generated","mime_type":"image/webp","width":1536,"height":1024,"translations":{"ko":{"alt":"자전거 작업장에서 두 사람이 등진 채 일하고, 작업대의 나무 풍동 안에는 저울에 매단 곡선형 날개 모형이 있다.","caption":"풍동 실험은 날개 모양에 맞는 양력 측정값을 확보하는 과정이었다.","description":null},"en":{"alt":"Two workers face away in a bicycle workshop beside a wooden wind tunnel testing a curved wing model on a balance.","caption":"Wind-tunnel tests provided lift measurements suited to different wing shapes.","description":null},"ja":{"alt":"自転車工房で二人が背を向けて作業し、木製風洞内の天秤に曲がった翼の模型が取り付けられている。","caption":"風洞実験によって、翼の形に応じた揚力の測定値を得た。","description":null},"es":{"alt":"Dos trabajadores de espaldas en un taller de bicicletas, junto a un túnel de viento de madera con un ala curva en una balanza.","caption":"Las pruebas en el túnel de viento permitieron medir la sustentación de distintas formas de ala.","description":null},"id":{"alt":"Dua pekerja membelakangi pengamat di bengkel sepeda, dekat terowongan angin kayu dengan model sayap pada neraca.","caption":"Uji terowongan angin menghasilkan pengukuran gaya angkat yang sesuai dengan bentuk sayap.","description":null},"pt":{"alt":"Dois trabalhadores de costas numa oficina de bicicletas, junto a um túnel de vento de madeira com uma asa curva numa balança.","caption":"Os testes em túnel de vento forneceram medições de sustentação para diferentes formatos de asa.","description":null},"zh-hant":{"alt":"自行車工坊裡，兩人背對視線工作；木製風洞內的天平上裝著彎曲的機翼模型。","caption":"風洞實驗取得了符合不同機翼形狀的升力測量數據。","description":null},"de":{"alt":"Zwei Arbeiter von hinten in einer Fahrradwerkstatt, neben einem hölzernen Windkanal mit gebogenem Flügelmodell auf einer Waage.","caption":"Windkanalversuche lieferten Auftriebsmesswerte für unterschiedliche Flügelformen.","description":null}}},{"id":1777,"url":"https://injoys.com/rails/active_storage/blobs/proxy/eyJfcmFpbHMiOnsiZGF0YSI6MjcyMzIsInB1ciI6ImJsb2JfaWQifX0=--8fa53cc1c1f84fa8127c38618574dbd98e05fb84/ai-548d6447.webp","is_representative":false,"generation_method":"ai_semi","license":"ai_generated","mime_type":"image/webp","width":1536,"height":1024,"translations":{"ko":{"alt":"모래언덕 사이의 나무 발사대 위로 떠오른 복엽기와 엎드린 조종사, 발사대 옆에 선 사람","caption":"1903년 12월 17일 첫 비행은 12초 동안 이어졌다.","description":null},"en":{"alt":"Biplane rising above a wooden launch rail on sandy dunes, with a prone pilot and a person standing nearby","caption":"The first flight on December 17, 1903, lasted 12 seconds.","description":null},"ja":{"alt":"砂丘の木製発進レールから浮かび上がる複葉機と、うつ伏せの操縦者、そばに立つ人物","caption":"1903年12月17日の最初の飛行は12秒間続いた。","description":null},"es":{"alt":"Biplano que se eleva sobre un riel de lanzamiento de madera entre dunas, con el piloto tumbado y una persona cerca","caption":"El primer vuelo del 17 de diciembre de 1903 duró 12 segundos.","description":null},"id":{"alt":"Pesawat bersayap ganda terangkat di atas rel peluncuran kayu di pasir, dengan pilot tengkurap dan seseorang di dekatnya","caption":"Penerbangan pertama pada 17 Desember 1903 berlangsung selama 12 detik.","description":null},"pt":{"alt":"Biplano subindo sobre um trilho de lançamento de madeira entre dunas, com o piloto deitado e uma pessoa por perto","caption":"O primeiro voo em 17 de dezembro de 1903 durou 12 segundos.","description":null},"zh-hant":{"alt":"雙翼飛機從沙丘間的木製起飛軌道升起，機上有俯臥的飛行員，軌道旁站著一人","caption":"1903年12月17日的首次飛行持續了12秒。","description":null},"de":{"alt":"Doppeldecker hebt über einer hölzernen Startschiene zwischen Sanddünen ab, mit liegendem Piloten und einer Person daneben","caption":"Der erste Flug am 17. Dezember 1903 dauerte 12 Sekunden.","description":null}}}],"published_at":"2026-10-12T04:12:34+09:00","updated_at":"2026-10-12T04:12:34+09:00","license":"cc_by","translation_status":"reviewed","available_locales":["ko","en","ja","es"],"data_locales":["ko","en","ja","es","id","pt","zh-hant","de"],"url":"https://injoys.com/en/articles/wright-brothers-1903-flight-background-and-breakthrough"}