Technologies that help to tellingly reduce noise heard by communities close to airports and generated by aircrafts were successfully demonstrated in a series of flight tests by NASA. At California’s Armstrong Flight Research Center, NASA concluded its Acoustic Research Measurement (ARM) flights in May. These flights tested technologies to address noise generated by an aircraft’s non-propulsive parts and also airframe noise during landing. In order to achieve a more than 70% reduction in airframe noise, several technologies were combined by the flights. NASA’s aerospace scientist at Langley Research Center in Virginia, Mehdi Khorrami said that aircraft noise is the number one complaint received by the Federal Aviation Administration (FAA).

FAA Notes Aircraft Noise as Number One Complaint Received from Communities

Through its flight tests, NASA aims to improve the quality of life of communities living near airports by substantially reducing aircraft noise. Khorrami continued saying that NASA is confident of the capability of tested technologies to make flights really quieter. A Gulfstream III research aircraft’s various airframe components were used to test a number of experimental designs at Armstrong. These included the Adaptive Compliant Trailing Edge (ACTE) wing flap and cavity treatments and landing gear fairings developed and designed at Langley. Interestingly, they have been flight-tested previously to study aerodynamic efficiency.

The possibility of benefiting the public with NASA technology’s airframe noise reduction is the best part, said Kevin Weinert, ARM project manager. Although there are potential economic benefits that the air transportation industry could gain using the aforementioned technologies, mostly importantly, the noise impact on communities is expected to see great reduction.