Accession Number:

ADA256980

Title:

Evaluation of 5-Year Dayboard Materials

Descriptive Note:

Final rept. Aug 1989-Apr 1992

Corporate Author:

COAST GUARD RESEARCH AND DEVELOPMENT CENTER GROTON CT

Personal Author(s):

Report Date:

1992-01-01

Pagination or Media Count:

46.0

Abstract:

The U. S. Coast Guard Research and Development Center evaluation of 5-year dayboard systems consisted of a material searchevaluation, a life cycle cost benefit study, accelerated weathering of candidate materials, field deployment of a limited number of full-size dayboards, and a detection and color recognition field test conducted with 12-inch diameter plugs of the candidate materials on both light and dark backgrounds. Materials evaluated are the current fluorescent elastromeric film, a nonfluorescent elastromeric film, epoxy paint, Surlyn foam, Lumasite acrylic, and Modulite fiberglass embedment. Results of the detection and color recognition field test found no candidate material had higher nor lower measured distances than the fluorescent material, on both light and dark backgrounds. The nonfluorescent film, Surlyn foam, and Modulite materials all appear to provide detection and color recognition distances within 10 percent of those for the current system and were found to be acceptable lower cost replacements for the current system.

Subject Categories:

  • Optical Detection and Detectors
  • Navigation and Guidance

Distribution Statement:

APPROVED FOR PUBLIC RELEASE