Survey of Nonglycol and Reduced Glycol Aircraft Deicing Methods

摘要

This survey of no glycol and low-glycol aircraft deicing practices, methods, and procedures used by the world's airlines, including cargo carriers, was conducted under contract to the Federal Aviation Administration (FAA) william J. Hughes Technical Center. A representative sample of 80 of the world's airlines and airports with operations under winter ground icing conditions were surveyed by mail for their experience with no glycol or reduced-glycol deicing methods. Twenty-five responded The written survey was supported by face-to-face interviews and telephone interviews. The results are presented in descriptive format for each of the procedures identified along with sample illustrations where appropriate. A summary is given of the principle characteristics for each procedure. Although the focus of the survey was the procedures in use, a number of technologies under development and which have been field tested have been included, such as truck-mounted blown air systems, mobile infrared heaters, and preheating of fuel prior to refueling. Major reductions in glycol use can be achieved through the use of simple mechanical aids such as scrapers or brushes to remove snow accumulation prior to conventional deicing.