時間：2011-03-11 23:13來源：藍天飛行翻譯 作者：admin 點擊：次
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final approach course (aircraft flight operation). A straight-line extension of a localizer, a final approach radial, or a runway center line, all without regard to distance. final approach fix. See FAF. final approach-IFR (air traffic control). The flight path of an aircraft which is inbound to an airport on a final instrument approach course, beginning at the final approach fix or point, and extending to the airport or the point where a circle-to-land maneuver or a missed approach is executed. final approach point. See FAP. final controller (air traffic control). The controller providing information and final approach guidance during precision approach radar (PAR) and airport surveillance radar (ASR) approaches utilizing radar equipment. final monitor aid (air traffic control). A high-resolution color display that is equipped with the controller-alert system hardware/software which is used in the precision runway monitor (PRM) system. The display includes alert algorithms providing the target predictors, a color-change alert when a target penetrates or is predicted to penetrate the no transgression zone (NTZ), a color-change alert if the aircraft transponder becomes inoperative, synthesized voice alerts, digital mapping, and like features contained in the precision runway monitoring (PRM) system. fineness ratio. The ratio of the length of a streamlined body to its maximum diameter. fine-wire spark plug (aircraft reciprocating engine component). A type of spark plug used in aircraft engines that have problems with lead fouling the plugs. The electrodes are made of small-diameter platinum or iridium wire which leaves the firing end of the spark plug open so the gases inside the cylinder can scavenge the lead compounds before they solidify and foul the plug. finger brake (sheet metal shop tool). Another term for a box brake. See box brake. |
