时间:2011-10-20 00:49来源:蓝天飞行翻译 作者:航空 点击:次
IV 45-<60 118-<171 V 60 -<66 171 -<214 VI 66-<80 214-<262 AIRPORT. An airport is an area of land or water that is used or intended to be used for the landing and takeoff of aircraft, and includes its buildings and facilities, if any. AIRPORT ELEVATION. The highest point on an airport’s usable runway expressed in feet above mean sea level (MSL). AIRPORT LAYOUT DRAWING (ALD). The drawing of the airport showing the layout of existing and proposed airport facilities. AIRPORT REFERENCE CODE (ARC). A coding system used to relate airport design criteria to the operational (Aircraft Approach Category) to the physical characteristics (Airplane Design Group) of the airplanes intended to operate at the airport. AIRPORT REFERENCE POINT (ARP). The latitude and longitude of the approximate center of the airport. AIRPORT TRAFFIC CONTROL TOWER (ATCT). A central operations facility in the terminal air traffic control system, consisting of a tower, including an associated instrument flight rule (IFR) room if radar equipped, using air/ground communications and/or radar, visual signaling, and other devices to provide safe and expeditious movement of terminal air traffic. ALERT AREA. See special-use airspace. ANNUAL INSTRUMENT APPROACH (AIA). An approach to an airport with the intent to land by an aircraft in accordance with an IFR flight plan when visibility is less than three miles and/or when the ceiling is at or below the minimum initial approach altitude. |