13 pages matching percent design corrected in this book
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45 meters acoustic performance acoustic suppression aerodynamic and acoustic aerodynamic performance airfoil amount of noise annular ring approach geometry provided band sound pressure baseline geometry blade passing frequency bulb-shaped centerbody approach centerbody approach geometry centerbody takeoff geometry centerbody-annular ring corrected weight flow cylindrical centerbody takeoff decibels design corrected weight design on aerodynamic diffuser design diffuser exit effects of inlet flow passage free-stream velocity geom increasing incidence angle increasing inlet indicated inlet incidence angle inlet total pressure inlet weight flow lip ellipse ratio lncidence angle meters per second NASA noise levels octave band sound One-third octave band percent design corrected pressure level reduction Radial vane reduction at blade semi-minor axis shown in figure sound pressure level surface static pressure takeoff and approach tested throat area throat Mach number total pressure distortion total pressure losses total pressure recovery V/STOL values of inlet velocity and incidence velocity of 45 wind tunnel