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Sources

Figures on this site were checked against the sources below on 15 November 2026. Where those sources differ, both are shown and labelled.

• Smithsonian National Air and Space Museum, “1903 Wright Flyer”, object A19610048000 (checked 15 November 2026)
• National Park Service, Wright Brothers National Memorial, “1903-The First Flight” (page last updated 14 April 2015; checked 15 November 2026)
• National Park Service, Wright Brothers National Memorial, “Four Powered Flights” place page (checked 15 November 2026)
• Library of Congress, “First Flight”, Wilbur and Orville Wright Papers collection highlight (checked 15 November 2026)