Accession Number : AD0694947

Title :   IN-FLIGHT MANIKIN RECORDINGS FOR EVALUATING THE COMMUNICATION EFFECTIVENESS OF FLIGHT HELMETS,

Corporate Author : NAVAL AEROSPACE MEDICAL INST PENSACOLA FLA

Personal Author(s) : Williams,Carl E. ; Forstall,John R. ; Greene,James W.

Report Date : 23 JUL 1969

Pagination or Media Count : 24

Abstract : An exploratory study has been conducted to determine the feasibility of obtaining and using in-flight manikin recordings to evaluate flight helmets with respect to speech intelligibility. Intelligibility test materials were transmitted to six airborne subjects and a manikin as each was fitted with different flight helmets. Similar test materials were presented to the same six subjects in a simulated flight situation. Recordings obtained via the airborne manikin were subsequently placed back in the laboratory to the six subjects and two groups of ten listeners each. (Author)

Descriptors :   (*PILOTS, HELMETS), (*EARPHONES, ACOUSTIC PROPERTIES), (*VOICE COMMUNICATIONS, INTELLIGIBILITY), COMMUNICATION AND RADIO SYSTEMS, NOISE, ATTENUATION, HEARING, PROTECTION

Subject Categories : Electrical and Electronic Equipment
      Protective Equipment
      Radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE