A Comparison of Underwater Helicopter-Escape Lights

Abstract

The effectiveness of two types of steady and flashing lights as escape hatch indicators for submerged helicopters was compared. Measurements were taken in moderately and highly turbid water. Response time was faster to the steady lights, and they were more accurately localized. Pairs of steady lights appeared to have some advantage over single lights, but this was not true for flashing lights. Subjects found it very difficult to discern how many different locations were being illuminated.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1980
Accession Number
ADA099168

Entities

People

  • Bernard L. Ryack
  • Daniel Temple
  • S. M. Luria

Organizations

  • Naval Submarine Medical Research Laboratory

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Accuracy
  • Biomedical Research
  • Classification
  • Daylight
  • Errors
  • Eye Diseases
  • Helicopters
  • Indicators
  • Luminance
  • Materials
  • Measurement
  • Security
  • Submarine Bases
  • Submarines
  • Turbidity
  • Visibility
  • Visible Spectra

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Geodesy
  • Mathematics or Statistics