NASA pilot Ed Lewis (rear) briefs NASA test pilot Dick Ewers on the flight instruments of NASA's YO-3A acoustics research aircraft prior to a checkout flight.
NASA Pilots and the YO-3AEC04-0311-06
NASA pilot Ed Lewis (rear) briefs NASA test pilot Dick Ewers on the flight instruments of NASA’s YO-3A acoustics research aircraft prior to a checkout flight.October 29, 2004NASA Photo / Tony Landis› Pilots Description