Accession Number : AD0646843

Title :   EFFECT OF LANDING-LIGHT BACKSCATTER ON TARGET VISIBILITY IN FOG.

Descriptive Note : Final rept.,

Corporate Author : CALIFORNIA UNIV BERKELEY INST OF TRANSPORTATION AND TRAFFIC ENGINEERING

Personal Author(s) : Finch,D. M. ; Curwen,E. C. ; King,L. E.

Report Date : SEP 1966

Pagination or Media Count : 36

Abstract : Tests were conducted in the FAA Fog Chamber to determine if backscatter from aircraft landing lights in visual ranges of 3 mi, 2600 ft, and 1200 ft would interfere with an observer's ability to see a set of amber target lights at the runway threshold. Results from a total of 518 test observations, made by 14 observers, indicate substantially no reduction in target-light visibility in visual ranges of 3 mi and 2600 ft. In the 1200-ft visual range, the visibility of the target lights was reduced by an appreciable amount.

Descriptors :   (*LANDING LIGHTS, BACKSCATTERING), (*FOG, LANDING LIGHTS), VISION, ALL WEATHER AVIATION, CONTROLLED ATMOSPHERES, VISIBILITY, RUNWAYS, MARKER LIGHTS, BRIGHTNESS, LIGHTING EQUIPMENT

Subject Categories : Aircraft
      Terminal Flight Facilities

Distribution Statement : APPROVED FOR PUBLIC RELEASE