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precision navigation aids

См. также в других словарях:

  • navigation — navigational, adj. /nav i gay sheuhn/, n. 1. the act or process of navigating. 2. the art or science of plotting, ascertaining, or directing the course of a ship, aircraft, or guided missile. [1520 30; < L navigation (s. of navigatio) a voyage.… …   Universalium

  • Navigation — This article is about determination of position and direction on or above the surface of the earth. For other uses, see Navigation (disambiguation). Table of geography, hydrography, and navigation, from the 1728 Cyclopaedia. Navigation is the… …   Wikipedia

  • Air navigation — The principles of air navigation are the same for all aircraft, big or small. Air navigation involves successfully piloting an aircraft from place to place without getting lost, breaking the laws applying to aircraft, or endangering the safety of …   Wikipedia

  • Required Navigation Performance — Bold textRequired Navigation Performance (RNP) is defined by ICAO as a statement of the navigation performance necessary for operation within a defined airspace . Part of a broader concept called Performance based Navigation, RNP is a method of… …   Wikipedia

  • DECCA (navigation) — Le Système DECCA était un système de radionavigation hyperbolique en LF (70 à 127 kHz). Il fut développé pendant la seconde guerre mondiale par les alliés pour permettre des débarquements précis. Comme pour le LORAN, son but principal était… …   Wikipédia en Français

  • position dilution of precision — The geometric effect resulting from satellites being too close together. Satellites that appear farther apart in the sky provide a more accurate position solution than ones close together. In the latter case, the position accuracy is degraded in… …   Aviation dictionary

  • Non-directional beacon — Radio Tower of NKR Leimen Ochsenbach, Germany This symbol denotes an NDB on an aeronaut …   Wikipedia

  • Air safety — is a term encompassing the theory, investigation and categorization of flight failures, and the prevention of such failures through regulation, education and training. It can also be applied in the context of campaigns that inform the public as… …   Wikipedia

  • Instrument landing system — The Instrument Landing System (ILS) is a ground based instrument approach system that provides precision guidance to an aircraft approaching a runway, using a combination of radio signals and, in many cases, high intensity lighting arrays to… …   Wikipedia

  • Instrument flight rules — (IFR) are a set of regulations and procedures for flying aircraft whereby navigation and obstacle clearance is maintained with reference to aircraft instruments only , while separation from other aircraft is provided by Air Traffic Control. In… …   Wikipedia

  • RAF Bomber Command — Infobox Military Unit unit name = Bomber Command caption = Bomber Command badge. start date = 14 July 1936 country = United Kingdom branch = Royal Air Force type = role = Strategic bombing size = command structure = garrison = 1936 40: RAF… …   Wikipedia

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