This photograph is a multiple exposure showing the AD-1 aircraft with its wing swept at different angles between zero and 60 degrees. The Ames-Dryden-1 (AD-1) aircraft was designed to investigate the concept of an oblique (pivoting) wing.
NASA
1984-01-02
This image or video was catalogued by Armstrong Flight Research Center of the United States <a href="https://en.wikipedia.org/wiki/NASA" class="extiw" title="w:NASA">National Aeronautics and Space Administration</a> (NASA) under <b>Photo ID:</b> <a rel="nofollow" class="external text" href="https://images.nasa.gov/search?q=EC80-12694&amp;page=1&amp;media=image,video,audio&amp;yearStart=1920&amp;yearEnd=2023">EC80-12694</a>.