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2. Navigational aid - Wikipedia

   en.wikipedia.org/wiki/Navigational_aid

   A navigational aid (NAVAID), also known as aid to navigation (ATON), is any sort of signal, markers or guidance equipment which aids the traveler in navigation, usually nautical or aviation travel. Common types of such aids include lighthouses , buoys , fog signals , and day beacons .

3. List of lights - Wikipedia

   en.wikipedia.org/wiki/List_of_lights

   The front cover of a List of Lights volume. A list of lights is a publication describing lighthouses and other aids to maritime navigation. Most such lists are published by national hydrographic offices. Some nations, including the United Kingdom and the United States, publish lists that cover the whole world in many volumes. Other nations ...

4. Navigation light - Wikipedia

   en.wikipedia.org/wiki/Navigation_light

   A navigation light, also known as a running or position light, is a source of illumination on a watercraft, aircraft or spacecraft, meant to give information on the craft's position, heading, or status. [1] Some navigation lights are colour-coded red and green to aid traffic control by identifying the craft's orientation.

5. Airway beacon - Wikipedia

   en.wikipedia.org/wiki/Airway_beacon

   An airway beacon (US) or aerial lighthouse (UK and Europe) was a rotating light assembly mounted atop a tower. These were once used extensively in the United States for visual navigation by airplane pilots along a specified airway corridor. In Europe, they were used to guide aircraft with lighted beacons at night. [1] [2]

6. Light characteristic - Wikipedia

   en.wikipedia.org/wiki/Light_characteristic

   While light characteristics can be described in prose, e.g. "Flashing white every two seconds", lists of lights and navigation chart annotations use abbreviations. The abbreviation notation is slightly different from one light list to another, with dots added or removed, but it usually follows a pattern similar to the following (see the chart ...

7. Category:Navigational aids - Wikipedia

   en.wikipedia.org/wiki/Category:Navigational_aids

   Navigational aids (also known as aids to navigation) include all forms of signal, marks and guidance equipment used to facilitate navigation. The term is most commonly used in the context of marine and fluvial navigation, but it can be used to refer to navigation assistance system for aerial navigation.