Title: Preliminary measurement of the noise from the 2/9 scale model of the large-scale advanced propfan (LAP) propeller, SR-7A
Subjects: Airplanes, Design analysis, Evaluation, Helical flow, Mach number, Measurement, Noise, Noise (Sound), Noise reduction, Predictions, Prop-fan technology, Propeller blades, Scale models, Supersonic speed, Tip speed, Turbine-propeller engines, Wind tunnel tests