Pressure transducers are housed in tubes on the inlet rake of NASA's F/A-18 High Alpha Research Vehicle (HARV) to test pressure distortion patterns at different angles of attack.
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Smoke generators and yarn tufts are used for flow visualization studies on an F/A-18 flown by NASA’s Dryden Flight Research Center, Edwards, Calif., in its High Alpha Research Vehicle (HARV) project.April 14, 1989NASA Photo / › F-18 HARV Project Description