1.

Technical Paper
Technical Paper
1. Acoustic performance of novel fan noise reduction technologies for a high bypass model turbofan at simulated flight conditions
Elliott, David M. ; Woodward, Richard P. ; Podboy, Gary G.
Pub. info.: AIAA meeting papers on disc.  2009.  Reston, Va..  American Institute of Aeronautics and Astronautics
Title of ser.: AIAA Paper : AIAA/CEAS Aeroacoustics Conference
Ser. no.: 2009
2.

Technical Paper
Technical Paper
2. NOISE OF A MODEL HIGH SPEED COUNTERROTATION PROPELLER AT SIMULATED TAKEOFF/APPROACH CONDITIONS (F7/A7)
Woodward, Richard P.
Pub. info.: NASA Technical Reports(N88-).  (NASA-TM-100206),  pp.1-25,  1987.  National Aeronautics and Space Administration
3.

Technical Paper
Technical Paper
3. Aeroacoustic Effects of Reduced Aft Tip Speed at Constant Thrust for a Model Counterrotation Turboprop at Takeoff Conditions
Woodward, Richard P. ; Hughes, Christopher E.
Pub. info.: NASA Technical Reports.  (NASA-TM-103808),  pp.1-21,  1990.  National Aeronautics and Space Adminstration
4.

Technical Paper
Technical Paper
4. FAR-FIELD NOISE AND INTERNAL MODES FROM A DUCTED PROPELLER AT SIMULATED AIRCRAFT TAKEOFF CONDITIONS
Woodward, Richard P. ; Heidelberg, Laurance J. ; Hall, David G.
Pub. info.: NASA Technical Reports.  (NASA-TM-105369),  pp.1-17,  1992.  National Aeronautics and Space Adminstration
5.

Technical Paper
Technical Paper
5. Inflight Source Noise of an Advanced Full-Seale Single-Rotation Propeller
Woodward, Richard P. ; Loeffler, Irvin J.
Pub. info.: NASA Technical Reports.  (NASA-TM-103687),  pp.1-20,  1991.  National Aeronautics and Space Adminstration
6.

Technical Paper
Technical Paper
6. In-Flight Near- and Far-Field Acoustic Date Measured on the Propfan Test Assessment (PTA) Testbed and With an Adjacent Aircraft
Woodward, Richard P. ; Loeffler, Invin J.
Pub. info.: NASA Technical Reports.  (NASA-TM-103719),  pp.1-161,  1993.  National Aeronautics and Space Adminstration
7.

Technical Paper
Technical Paper
7. An Evaluation of Some Alternative Approaches for Reducing Fan Tone Noise
Dittmar, James H. ; Woodward, Richard P.
Pub. info.: NASA Technical Reports.  (NASA-TM-105356),  pp.1-21,  1992.  National Aeronautics and Space Adminstration
8.

Technical Paper
Technical Paper
8. Noise of a Simulated Installed Model Counterrotation Propeller at Angle-of-Attack and Takeoff/Approach Conditions
Woodward, Richard P.
Pub. info.: NASA Technical Reports.  (NASA-TM-102440),  pp.1-25,  1990.  National Aeronautics and Space Adminstration
9.

Technical Paper
Technical Paper
9. Fan Noise Reduction Achieved by Removing Tip Flow Irregularities Behind the Rotor-Forward Arc Test Configuration
Dittmar, James H. ; Woodward, Richard P.
Pub. info.: NASA Technical Reports.  (NASA-TM-83616),  pp.1-17,  1984.  National Aeronautics and Space Administration