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radar navigational aid

См. также в других словарях:

  • radar — /ray dahr/, n. 1. Electronics. a device for determining the presence and location of an object by measuring the time for the echo of a radio wave to return from it and the direction from which it returns. 2. a means or sense of awareness or… …   Universalium

  • radar beacon — ra′dar bea con n. elo naut. a radar device at a fixed location, used as a navigational aid • Etymology: 1940–45 …   From formal English to slang

  • Radio Navigational Aids — The Radio Navigational Aids (Publication 117) publication contains a detailed list of selected worldwide radio stations that provide services to the mariner.National Geospatial Intelligence Agency, 2008.] The publication is divided into chapters… …   Wikipedia

  • Doppler radar — A radar that detects and interprets the Doppler effect (Doppler frequency shift) in terms of the radial velocity of a target. It differentiates between fixed and moving targets by detecting and measuring the apparent change in frequency of the… …   Aviation dictionary

  • H2X radar — The H2X radar, nicknamed the Mickey set , provided the USAAF with ground mapping capability (for navigation) during daylight overcast and nighttime operations in World War II.The H2X system replaced the British H2S radar. It used a shorter 3 cm… …   Wikipedia

  • 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

  • Automatic Identification System — The Automatic Identification System (AIS) is a system used by ships and Vessel Traffic Services (VTS) principally for identification and locating vessels. AIS provides a means for ships to electronically exchange ship data including:… …   Wikipedia

  • Chief Mate — Infobox shipping job name = Chief Mate othernames = Chief Officer, First Mate, First Officer. photo = Chief mate cargo handling.jpg photo cargo and deck crew. department = Deck department reports to = Captain. licensed = Yes epoch = location =… …   Wikipedia

  • Defence Research and Development Organisation — Sanskrit: बलस्य मूलं विज्ञानम् Strength s Origin is in Science [1] Agency overvi …   Wikipedia

  • Third Mate — Infobox shipping job name = Third mate othernames = Third officer photo = Life vest.jpg photo department = Deck department licensed = Yes epoch = location = watch at sea = Mate on watch watch at sea time = 8 12, 20 24 watch in port = Mate on… …   Wikipedia

  • Second Mate — Infobox shipping job name = Second mate othernames = Second officer photo = Sekstant.jpg photo department = Deck department licensed = Yes epoch = location = watchstander = watch at sea = Mate on watch watch at sea time = 00:00 04:00, 12:00 16:00 …   Wikipedia

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