In-flight acoustic results from an advanced-design propeller at Machnumbers to 0.8

descriptionPublicationkeyboard_double_arrow_right Article , Other literature type 21 Jun 1982Publisher:American Institute of Aeronautics and Astronautics (AIAA)Journal:18th Joint Propulsion Conference

Authors: K. MACKALL; P. LASAGNA; K. WALSH; J. DITTMAR;

doi: 10.2514/6.1982-1120

In-flight acoustic results from an advanced-design propeller at Machnumbers to 0.8

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Abstract

Acoustic data for the advanced-design SR-3 propeller at Mach numbers to 0.8 and helical tip Mach numbers to 1.14 are presented. Several advanced-design propellers, previously tested in wind tunnels at the Lewis Research Center, are being tested in flight at the Dryden Flight Research Facility. The flight-test propellers are mounted on a pylon on the top of the fuselage of a JetStar airplane. Instrumentation provides near-field acoustic data for the SR-3. Acoustic data for the SR-3 propeller at Mach numbers up to 0.8, for propeller helical tip Mach numbers up to 1.14, and comparison of wind tunnel to flight data are included. Flowfield profiles measured in the area adjacent to the propeller are also included.

Related Organizations

Ames Research Center
United States
National Aeronautics and Space Administration
United States
Glenn Research Center
United States

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