Accession Number:

ADA250854

Title:

Comparison of the Performance of a Microwave Landing System Elevation Station with the Instrument Landing System End-Fire Glide Slope at Yeager Airport, Charleston, West Virginia

Descriptive Note:

Technical note for period ending Apr 1991

Corporate Author:

FEDERAL AVIATION ADMINISTRATION TECHNICAL CENTER ATLANTIC CITY NJ

Personal Author(s):

Report Date:

1992-03-01

Pagination or Media Count:

29.0

Abstract:

In support of Project No. 5 of the Federal Aviation Administration FAA Microwave Landing System MLS Demonstration and Evaluation Program, Comparison of MLS and Instrument Landing System ILS Performance, the FAA technical Center installed an MLS elevation station collocated with the ILS basic end-fire glide slope EFGS serving runway 23 at Yeager Airport, Charleston, West Virginia. The EFGS is the only type of ILS glide slope antenna that will provide operationally usable performance at the site because of limited flat terrain in front of the antenna and a valley with rising hills in the approach to the runway. The FAA Technical Centers MLS test bed, consisting of a 1.5 deg beamwidth elevation station and a 2 deg beamwidth azimuth station, was transported to, and temporarily installed at Yeager Airport on runway 23. Only the MLS elevation was collocated with the commissioned ILS EFGS. The azimuth station was not collocated with the localizer for siting reasons. The MLS installation did not affect the performance of the ILS as verified by a flight check by the Atlantic City Flight Inspection Field Office FIFO. During ground tracked partial orbits and inbound level runs and approaches, both ILS and MLS data were simultaneously recorded in the FAA Technical Center instrumented aircraft, a Convair-580, N-49. End-Fire Glide Slope EFGS, Instrument Landing System ILS, Microwave Landing System MLS, Yeager Airport, Charleston, WV.

Subject Categories:

  • Air Navigation and Guidance

Distribution Statement:

APPROVED FOR PUBLIC RELEASE