YO-3A Quiet Plane (NASA-718) parked on ramp This aircraft is a flying acoustic platform used as a microphone to study aircraft noise, especially helicopter noise.
YO-3A (NASA-718) Flying Acoustic Platform: The Quiet Plane is used as a flying microphone platform to study aircraft noise, especially helicopter noise.
YO-3A (NASA-718) Flying Acoustic Platform: The Quiet Plane is used as a flying microphone platform to study aircraft noise, especially helicopter noise.