Attenuation of Light Transmission in Army Aircraft Transparencies Due to Slanting

Abstract

The rates of light transmission reduction due to the slanting in eight fixed wing and fourteen rotary wing aircraft transparencies have been examined. It was found that the optical quality at various portions of the UH-1 transparencies and all the fixed wing samples possess similar characteristics of transmission reduction. The windscreen and the armor glass of CH-54 samples are similar too. But the tinted versus the clear AH-1G transparencies are quite different. The tinted sample generally has 27% spectral transmission loss compared to that of the clear sample. This reduction could constitute a dangerous loss of visibility for the aviator, especially during periods of reduced illumination and at night. The results presented in this study enable the potential users of the optical as well as the electro-optical devices to compute the amount of transmission reduction in most of the current Army aircraft.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1976
Accession Number
ADA027664

Entities

People

  • Chris E. Moser
  • Chun K. Park
  • Wun C. Chiou

Organizations

  • United States Army Aeromedical Research Lab

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aircrafts
  • Army Aircraft
  • Attenuation
  • Distortion
  • Electric Fields
  • Fixed Wing Aircraft
  • Illumination
  • Light Scattering
  • Light Sources
  • Light Transmission
  • Losses
  • Materials
  • Rotary Wing Aircraft
  • Transmission Loss
  • Transparencies
  • Visibility
  • Windshields

Readers

  • Electrical Engineering
  • Mathematics or Statistics
  • Vision Science/Vision Psychology/Cognitive Neuroscience.