The process or activity of accurately ascertaining one’s position and planning and following a route
A method of navigation which enables an aircraft to follow any course within a network of fixed points relative to which its position can be determined, rather than having to navigate a course directly from one such fixed point to another; navigation by this means.
Any one of a number of legal enactments regulating navigation, shipping, or seaborne trade, especially that of 1651 intended to restrict imports from the Netherlands (the U.K. acts were abolished in 1849).
= navigation act.
Transportation by canals, rivers, and lakes
A beacon marked by a light or emitting a radio signal for use in aircraft navigation.
A passage in a stretch of water where the sea or river bed has been deepened to allow access to large vessels
A set of lights shown by a ship or aircraft at night to indicate its position and orientation, especially with respect to other vessels or aircraft
A set of equipment designed to assist or automate navigation in a vehicle, ship, or aircraft
Navigation by means of radio signals.
The action of finding one’s way by observing the sun, moon, and stars
A satellite that transmits signals for use in navigation.
Determination of the position and course of an aircraft or a spacecraft by means of observation of the stars