5 Quiet Plane Image: PICRYL - Public Domain Media Search Engine Public Domain Search}

Y0-3A (NASA-718) Quiet Plane coming in for landing at Ames ARC-1979-AC79-0565-1

Y0-3A (NASA-718) Quiet Plane coming in for landing at Ames

Y0-3A (NASA-718) Quiet Plane and AH-1G (NASA-736) helicopter during noise abatement flight test at Crow Landing facility ARC-1979-AC79-0565-2

Y0-3A (NASA-718) Quiet Plane and AH-1G (NASA-736) helicopter during noise abatement flight test at Crow Landing facility

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. ARC-1985-AC85-0209-5

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. ARC-1993-AC93-0593-6

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. ARC-1993-AC93-0593-50

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