Attenuation of Light Transmission in Army Aircraft Transparencies Due to Slanting

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 o...

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Bibliographic Details
Main Authors: Chiou, Wun C, Park, Chun K, Moser, Chris E
Format: Report
Language:English
Subjects:
AIRCRAFT
Anatomy and Physiology
ANGLES
ARMOR
ATTENUATION
CH-54 AIRCRAFT
COLORS
GLASS
GRAPHS
H-1 AIRCRAFT
H-54 AIRCRAFT
Helicopters
LIGHT TRANSMISSION
Optics
REDUCTION
SLANTING
TABLES(DATA)
TINTING
TRANSPARENT PANELS
UH-1 AIRCRAFT
VISION
WINDSHIELDS
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Summary: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.