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This document contains information on the utilization of the Microwave Landing System (MLS) at heliports and helipads. It was designed to familiarize operators and users with the features of the MLS and its capabilities in supporting heliport operations. For this reason the major sections of the document present information on MLS siting, operational characteristics, selecting and specifying an MLS system. In addition, other sections provide additional MLS information to familiarize pilots with MLS avionics, pilot training requirements and aircraft performance considerations. (Author).
During the winter and spring of 1985, the Federal Aviation Administration (FAA) Eastern Region in conjunction with the Guidance and Airborne Systems Branch at the FAA Technical Center conducted a demonstration of a Microwave Landing System (MLS) located at a downtown heliport. This report describes both the industry/user and FAA Technical Center activities during the evaluation period. It describes the evaluation methodology and addresses topics concerning both technical and operational issues. It also describes the helicopter procedures flown during this evaluation and provides an analysis of signal coverage and the user's subjective opinions concerning the acceptability and perceived workload associated with these procedures. It was concluded that MLS to heliports is a viable asset to the helicopter Instrument Flight Rules (IFR) community, however, its full benefits may not be realized in the Battery Park/Wall Street area without revisiting the necessity and demand for the New York Terminal Control Area (TCA) Visual Flight Rules (VFR) operating exclusion area. (Author).
This bibliography has been assembled as an aid to those who are interested in research, engineering, and development pertaining to vertical flight aircraft (including helicopters, tiltrotor, and tiltwing vehicles) and their integration into the National Airspace System (NAS). The intended audience includes people within the Federal Aviation Administration (FAA), in industry, and in state and local governments Reports in this bibliography are documents specifically related, in whole or in pan to vertical flight aircraft and the infrastructure that supports their operation in the National Airspace System (NAS). These documents have generally been sponsored or authored by the research, engineering, and development elements of the FAA. This is the eighth and probably the last version of this bibliography. It addresses approximately 440 reports published from 1962 to 2001.
During the late fall of 1985 and the winter of 1986 test flights were conducted at the Federal Aviation Administration (FAA) Technical Center's Heliport at Atlantic City International Airport, N.J. The purpose of these flights was to verify signal coverage of the Microwave Landing System (MLS) collocated at the heliport. Other activities included the measurement of the signal characteristics of the Hazeltine Model 2400 MLS which was installed at the heliport. Elevation and azimuth course widths were determined and, using classical Z transform techniques, statistical estimates of control motion noise and path following error were obtained. These estimates were compared with the FAA Standard for Interoperability and Performance Requirements of MLS. Results obtained were excellent. Tolerance limits were consistently met. The data revealed that wide beam width antenna systems when installed at heliports can meet specification tolerances contained in the FAA specification for MLS Interoperability and Performance Requirements.