TY - BOOK AU - Rice, Edward J AU - Feiler, Charles E TI - NASA Technical Note: ACOUSTIC AND AERODYNAMIC PERFORMANCE OF A 6-FOOT-DIAMETER FAN TURBOFAN ENGINES: III - Performance with noise suppressors PY - 1971/// CY - Washington, D.C. PB - NASA KW - Turbofan Engine -- Aircraft Noise -- Noise Reduction KW - Acoustic Attenuation -- Impedance N1 - Technical Note D-6170 -6179 Lack No-6175,6177. ; Bound Vol. No.101233 Contents TR15104-15110 ER -