Definitions for "AID TO NAVIGATION"
Any device external to a vessel or aircraft specifically intended to assist navigators in determining their position or safe course, or to warn them of dangers or obstructions to navigation.
Markers, buoys, lights, fog signals, and electronic systems such as G.P.S. & loran. Used to assist mariners in fixing their positions, aid in marking landfalls, mark dangerous shoals and rocks and to enable ships to keep within a channel. cetylene Sun-Valve System - An early lamp system used to automate lighthouses. The Sun Valve would automatically turn the gas on as the cold of night arrived and off with the arrival of the warmth of day. A pilot light would remain constantly lit. Equipped with a tank into which acetylene could be pumped from lighthouse tenders, lights could be supplied with sufficient acetylene for an entire season.
used to establish position, a fixed mark such as a buoy, landmark, radio beacon, lighthouse, gps satellite, etc.