Accession Number : ADA316988

Title :   Failure Mechanisms in Aircrew Helmet Visors.

Descriptive Note : Final technical rept. 1 Sep 93-29 Mar 95,

Corporate Author : ANALYTIC SCIENCES CORP SAN ANTONIO TX

Personal Author(s) : Maier, Dennis A. ; LaPage, Connie S.

PDF Url : ADA316988

Report Date : SEP 1996

Pagination or Media Count : 13

Abstract : The causes for removing aircrew helmet visors from service were investigated as part of the Armstrong Laboratory's Advanced Aircrew Vision Protection (AAVP) program. The reason for the investigation was to identify better technologies, specifications, or procedures that could be applied to the aircrew laser eye protection (ALEP) visors being transitioned under the AAVP program. Clear and neutral gray (sun) visors that were identified to be discarded were requested and received from four Air Force life support units. Fifty-three (53) visors, 44 sun and 9 clear, were received and examined. The procedures used and the results of this study are presented here. The single cause of visor degradation that resulted in removing it from service was found to be damage to the surface hard coating, primarily scratches.

Descriptors :   *FLIGHT CREWS, *HELMETS, *VISORS, REMOVAL, DEGRADATION, NEUTRAL, EYE SAFETY, PROTECTION, PROTECTIVE EQUIPMENT, VISION, LASER SAFETY, LIFE SUPPORT SYSTEMS, AIR FORCE EQUIPMENT, GRAY(COLOR), SUN.

Subject Categories : Personnel Management and Labor Relations
      Anatomy and Physiology
      Logistics, Military Facilities and Supplies
      Protective Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE