时间:2011-08-28 11:47来源:蓝天飞行翻译 作者:航空 点击:次
National Airspace System (NAS). The common network of United States airspace—air navigation facilities, equipment and services, airports or landing areas; aeronautical charts, information and services; rules, regulations and procedures, technical information; and manpower and material. National Aeronautical Charting Group (NACG). A Federal agency operating under the FAA, responsible for publishing charts such as the terminal procedures and en route charts. National Route Program (NRP). A set of rules and procedures designed to increase the .exibility of user . ight planning within published guidelines. National Security Area (NSA). Areas consisting of airspace of de.ned vertical and lateral dimensions established at locations where there is a requirement for increased security and safety of ground facilities. Pilots are requested to voluntarily avoid .ying through the depicted NSA. When it is necessary to provide a greater level of security and safety, .ight in NSAs may be temporarily prohibited. Regulatory prohibitions are disseminated via NOTAMs. National Transportation Safety Board (NTSB). A United States Government independent organization responsible for investigations of accidents involving aviation, highways, waterways, pipelines, and railroads in the United States. NTSB is charged by congress to investigate every civil aviation accident in the United States. NAVAID. Naviagtional aid. NAV/COM. Navigation and communication radio. NDB. See nondirectional radio beacon. NM. Nautical mile. NOAA. National Oceanic and Atmospheric Administration. |