時間：2011-03-11 23:13來源：藍(lán)天飛行翻譯 作者：admin 點擊：次
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glaze ice (meteorology). Ice that forms when large drops of water strike a surface whose temperature is below freezing. Glaze ice is clear and heavy. glide (aircraft flight maneuver). A flight maneuver in which an aircraft descends at a gradual angle without the use of engine power. “Glide path…(on/above/below)” (air traffic control). Information provided by ATC to a pilot making a PAR (precision approach radar) approach regarding the position of the aircraft relative to the descent profile. See glide slope. glider (type of aircraft). An aircraft having no engine, which is capable of free flight only while it is descending through the air. Gliders are launched by towing them behind an airplane, pulling them into the air with an automobile, or shooting them into the air with a catapult. High-performance gliders are called sailplanes. 14 CFR Part 1: “A heavier-than-air aircraft, that is supported in flight by the dynamic reaction of the air against its lifting surfaces and whose free flight does not depend principally on an engine.” glide ratio (aircraft performance). The ratio of the forward distance traveled to the vertical distance an aircraft descends when it is operating without power. For example, if an aircraft descends 1,000 feet while it travels through the air for a distance of two miles (10,560 feet), it has a glide ratio of slightly more than 10:1. glide slope (electronic navigation system). A portion of an Instrument Landing System (ILS). The glide slope is a radio beam extending upward at angle of approximately 2 1/2° from the approach end of an instrument runway. The glide slope provides the vertical path for the aircraft to follow when making an ILS approach along the localizer path. The horizontal needle of the cross-pointer indicator (the ILS indicator) shows the pilot the relative position of the aircraft as it descends along the glide slope. The glide slope is sometimes called the glide path. glide slope intercept altitude. The minimum altitude of an intermediate approach segment prescribed for a precision approach which assures obstacle clearance. |
