Citation

Ribera JE, Mozo BT, Mason KT, Murphy BA. Mil. Med. 1996; 161(7): 387-391.

Affiliation

United States Army Aeromedical Research Laboratory, Fort Rucker, AL 36362-0577, USA.

Copyright

(Copyright © 1996, Association of Military Surgeons of the United States)

DOI

unavailable

PMID

8754711

Abstract

U.S. Army CH-47D cargo helicopter crewmembers are exposed to high levels of noise on a routine basis, yet must accomplish demanding missions that rely heavily on clear communication. This study looked at the auditory influences affecting communication by 17 crewmembers of a CH-47D Army Reserve unit. Results revealed (1) noise levels that exceed those of other Army rotary-winged aircraft, (2) different exposure levels for aviators and crewchiefs, (3) an overall preference for hearing "critical or diagnostic" aircraft sounds rather than wearing double hearing protection, (4) complaints of post-flight tinnitus or muffled hearing, (5) helmet discomfort among the majority of crewmembers, (6) a high incidence of hearing loss, (7) difficulties in adjusting radio volume controls for aviators, and (8) the effects of eyeglasses or protective masks on hearing and communications.

Language: en