STUDIES IN THE FIELD OF APPROACH VISIBILITY MEASUREMENT AND INSTRUMENTATION
Abstract
Studies were conducted and developmental work performed in the field of approach visibility measurements, instrumentation, and application to aircraft instrument landing operations, at the National Aviation Facilities Experimental Center, Atlantic City, New Jersey. Flight tests were conducted to refine the approach light contact height (ALCH) techniques developed empirically at Newark and confirm their more general applicability to other locations, types of aircraft and operational conditions. It was determined that ALCH for low clouds was substantially the same at Atlantic City as at Newark. Limited data for ALCH, HF category (fog, smoke, and haze), permitted the general appraisal that this category also showed marked similarity. Studies indicated that automatic control of runway and approach lights is feasible, and a design was developed for optimum intensity of these lights with re gard to varying weather conditions. Four simultaneously operating transmissometers were installed along runway 13-31 to measure varia tions of transmittance with time and space. Statistical studies were made of the data.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1962
- Accession Number
- AD0403075