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A navigational aid (also known as aid to navigation, ATON, or navaid) is any sort of marker which aids the traveler in navigation; the term is most commonly used to refer to ... http://en.wikipedia.org/wiki/Navigation_aidThis section describes the Tacan beacon navigational aid system and its capabilities ... This volume was known to the British armed forces as Admiralty B.R.600(7), War ... http://www.radarpages.co.uk/mob/navaids/tacan/tacan1.htmDecca was a hyperbolic low frequency radio navigation system (also known as multilateration) that ... When a vessel is within radar range of land or special radar aids to navigation, the ... http://en.wikipedia.org/wiki/NavigationA navigational aid (also known as aid to navigation or navaid) is any sort of marker which aids the traveler in navigation; the term is most commonly used to refer to nautical or ... http://commons.wikimedia.org/wiki/Category:Navigational_aidsThe all-embracing term that describes these efforts is the provision of ?navigational aids?, or ?aids to navigation?, as they are also known. http://www.btinternet.com/~k.trethewey/Lighthouses/WhatIsALighthouse/DT_Navigational_aids.htm |
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