FAA FO 6750.16D PDF

PURPOSE

This order provides guidance to engineering personnel engaged in the siting of Federal Avaition Administration (FAA) instrument landing systems (ILS). Sufficient information, supplemented by relevant drawings, will enable the engineer to select the optimum site, within defined limits, for each of the subsystems that comprise a Category I, II, or III ILS. Because of the wide variation in ILS siting conditions, it is not possible to provide specific instructions on how to overcome or offset the effects of each adverse condition. This order provides guidelines that must be used in conjunction with a thorough understanding of ILS facility operations to arrive at the optimum site and operating parameters.