- terrain obstruction
- препятствие, образованное складкой местности
Englsh-Russian aviation and space dictionary. - M.: Military publishing house USSR Ministry of Defence. edited by M. Murashkevich. 1974.
terrain obstruction
Смотреть что такое "terrain obstruction" в других словарях:
obstruction light — Distinctive lighting to provide a uniform means for indicating the presence of obstructions, especially at night or in poor visibility conditions. An obstruction light, or one group of lights, is usually red or white, visible 360°, and frequently … Aviation dictionary
terrain alert — i. A facility that alerts the pilot when the aircraft reaches a preset altitude above the terrain during descent. This facility is in the form of an audio and/or visual warning. This terrain alert system is a multicolored display. It shows… … Aviation dictionary
obstruction — An existing object, object of natural growth, or terrain that is hazardous to an aircraft if the obstruction is on or near the runway or in the flight path. For purposes of certification, an object becomes an obstruction if its height is 35 ft… … Aviation dictionary
terrain avoidance system — A system which provides the pilot or navigator of an aircraft with a situation display of the ground or obstacles which project above either a horizontal plane through the aircraft or a plane parallel to it, so that the pilot can maneuver the… … Military dictionary
ITU Terrain Model — The ITU Terrain Loss Model is a radio propagation model that provides a method to predict the median path loss for a telecommunication link. Developed on the basis of diffraction theory, this model predicts the path loss as a function of the… … Wikipedia
off-route obstruction-clearance altitude — An off route altitude that provides obstruction clearance of a 2000 ft (600 m) buffer in designated mountainous areas and a 1000 ft (300 m) buffer in nonmountainous terrain. It may not be possible at this altitude to receive signals from ground… … Aviation dictionary
above obstruction level — The height of an aircraft above terrain, structures, and obstacles in the area of operation. The height is nominated for aircraft carrying out very low flying. Pilots either take into consideration heights indicated on maps and charts when… … Aviation dictionary
appropriate obstacle/terrain clearance altitude — A specified minimum published altitude that must be flown by an aircraft to ensure safe flight over an obstruction or specified terrain. These include minimum IFR (instrument flight rules) altitude (MIA), minimum en route altitude (MEA), minimum… … Aviation dictionary
safety alert — An alert issued to an aircraft under the control of ATC (air traffic control) if in the controller’s opinion the aircraft’s altitude is unsafe with respect to the terrain or an obstruction, or it is in an unsafe proximity to other aircraft. When… … Aviation dictionary
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