Accession Number:

AD0432086

Title:

INVESTIGATION OF THE NOISE ASPECTS OF CARRIER DECK JET ENGINE OPERATION, AND EFFECTS OF NOISE SUPPRESSION ON AIRCRAFT MISSION PERFORMANCE. VOLUME I. EFFECTS OF NOISE FROM CARRIER DECK JET ENGINE OPERATION ON HEARING, SPEECH INTERFERENCE, AND SONIC FATIGUE

Descriptive Note:

Final rept. on phase 2

Corporate Author:

GENERAL ELECTRIC CO CINCINNATI OH ADVANCED ENGINE AND TECHNOLOGY DEPT

Report Date:

1964-01-31

Pagination or Media Count:

132.0

Abstract:

Information gathered from a literature search relative to hearing loss vs. noise exposure is reviewed. The results of such studies are applied to the specific problem of determining criteria applicable to the hearing damage risk problem aboard aircraft carriers. Simple nomograms are derived to quickly evaluate the maximum allowable exposure time to a given sequence of take-offs expressed in terms of octave-band sound level vs. time plots at the observers ear. These charts are based upon the allowance of a computed TTS2 temporary threshold shift 2 minutes after exposure to the noise of 10-13 db at 2000 cps and 20-23 db at 4000 cps. Additional nomograms allow rapid computation of TTS growth and recovery during noisy and quiet periods respectively. Author

Subject Categories:

  • Noise Pollution and Control

Distribution Statement:

APPROVED FOR PUBLIC RELEASE