The No. 1 X-29 advanced technology demonstrator aircraft banks over desert terrain near NASA’s Ames-Dryden Flight Research Facility.

Image Credits: NASA (public domain)

This photo shows the X-29 during a 1991 research flight. Smoke generators in the nose of the aircraft were used to help researchers see the behavior of the air flowing over the aircraft. The smoke here is demonstrating forebody vortex flow. This mission was flown September 10, 1991, by NASA research pilot Rogers Smith.

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