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December 17, 1903Primary source · 2 sourcesWell documented

The Wright Brothers Achieve the First Powered, Controlled Flight

120 feet in 12 seconds at Kitty Hawk settles a question aviators had been chasing for a century, disputes notwithstanding

On the timeline · around December 17, 1903 · The Pioneer EraLighter Than AirThe Pioneer EraThe Wright Brothers Achieve the First Powered, Controlled Flight188518951905

Quick facts

Date and time
December 17, 1903, 10:35am
First flight distance/duration
120 feet in 12 seconds
Longest of the day's four flights
852 feet in 59 seconds (Wilbur)
Key innovation
Three-axis control (wing-warping, rudder, elevator)

What happened

At 10:35am on December 17, 1903, Orville Wright piloted the Wright Flyer 120 feet across the sand at Kitty Hawk, North Carolina, in a flight that lasted 12 seconds and reached a top speed of 6.8 miles per hour. The brothers, bicycle mechanics from Dayton, Ohio, made three more flights that day, the longest covering 852 feet in 59 seconds with Wilbur at the controls, before gusty winds tipped the Flyer over after the last landing and wrecked it beyond repair. The key breakthrough behind the flight was not the engine but three-axis control, a system of wing-warping and rudder and elevator surfaces that let a pilot steer and balance the aircraft, a problem the brothers had spent several prior years solving through their own glider tests building on Lilienthal's published data.

Why it matters

December 17, 1903 is treated by aviation historians as the moment powered, controlled, sustained heavier-than-air flight became real rather than theoretical, distinct from earlier hops or uncontrolled powered flights by other experimenters. The three-axis control system the Wrights invented to make the flight possible remains the basic control logic of every fixed-wing aircraft flown since, right through to modern airliners.

How we know

The flight was witnessed by five people, one of whom, John T. Daniels of the nearby Kill Devil Hills lifesaving station, took the now-famous photograph of the Flyer leaving the ground at Orville's instruction; the glass-plate negative is preserved in the Library of Congress's Wright brothers collection.

Sources

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Part of a timelineHistory of Aviation26 events · From a sheep, a duck, and a rooster in a basket over Versailles to a widebody jet that could carry 660 people, in less than two centuriesView all →
The Wright Brothers Achieve the First Powered, Controlled Flight · History of Aviation · SourcedStory