Aero-Acoustic Propulsion Laboratory (AAPL)

The Aero-Acoustic Propulsion Laboratory (AAPL) as seen from above. This facility provides world class testing for aircraft propulsion acoustic noise reduction and is 65 ft high by 130 ft in diameter.

The Aero-Acoustic Propulsion Laboratory (AAPL) photographed on October 24, 2024 as seen from above. This facility provides world class testing for aircraft propulsion acoustic noise reduction and is 65 ft high by 130 ft in diameter. Photo Credit: (NASA/Sara Lowthian-Hanna)

NASA GRC Sara Lowthian-HannaAAPLAero Acoustic Propulsion LaboratoryFacilityNASA Glenn Research Center