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ER-2 tail number 809 is one of two Airborne Science ER-2s used as science platforms by NASA's Neil A. Armstrong Flight Research Center (formerly Dryden).
EC99-45225-1
ER-2 tail number 809 is one of two Airborne Science ER-2s used as science platforms by NASA’s Neil A. Armstrong Flight Research Center (formerly Dryden). The aircraft are platforms for a variety of high-altitude science missions flown over various parts of the world. They are also used for Earth science and atmospheric sensor research and development, satellite calibration, and data validation.October 1999
NASA Photo / Jim Ross