Accession Number:

AD0780576

Title:

Small Turbine Engine Noise Reduction. Volume V. Data Tabulations

Descriptive Note:

Final rept. 7 May 1971-31 May 1973

Corporate Author:

AIRESEARCH MFG CO OF ARIZONA PHOENIX

Personal Author(s):

• Tedrick, Richard N.
• Kantarges, George T.

Report Date:

1973-12-01

Pagination or Media Count:

360.0

Abstract:

Volume 5 of AFAPL-TR-73-79 contains tabulations of the measured engine data developed under the Small Turbine Engine Noise Reduction Study. The data is presented as tabulated listings of the one-third octave band sound pressure level for each engine configuration, each engine load point, and at each microphone position. Sound power level tabulations have also been included, to allow comparison of the effectiveness of the various hardware configurations on the basis of the sound power level. This volume also contains the impedance and acoustic absorption data sheets for those materials and material constructions not reported in Volume 3. In addition, the complete tabulated data from the standing wave impedance tube apparatus material tests is presented.

Descriptors:

• *NOISE REDUCTION
• *RECONNAISSANCE AIRCRAFT
• *TURBOFAN ENGINES
• *TURBOPROP ENGINES
• AERIAL RECONNAISSANCE
• ATTENUATORS
• COMBAT SURVEILLANCE
• JET ENGINE NOISE
• LOW ALTITUDE

Subject Categories:

• Patrol and Reconnaissance Aircraft
• Jet and Gas Turbine Engines

Distribution Statement:

APPROVED FOR PUBLIC RELEASE