Image: NASA AD-1 in flight
Original image (3,030 × 1,656 pixels, file size: 8.9 MB, MIME type: image/jpeg)
Description: The AD-1 oblique wing research aircraft was photographed during a wing sweep test flight. The aircraft was flown 79 times during the research program conducted at NASA Dryden between 1979 and 1982.
Usage Terms: Public domain