Navigational aids

thumb|upright=1.2|A cairn a mile east of Nine Standards Rigg in the Yorkshire Dales.

continuously computed dead reckoning

ground-based visual aid for landing

1974 international treaty for maritime safety

thumb|right|Lightship Finngrundet (1903)|Lightship Finngrundet, now a [[museum ship in Stockholm. The day markers can be seen on the masts.]] thumb|right|Fehmarnbelt Lightship|Fehmarnbelt Lightship, now a [[museum ship in Lübeck]] thumb|Bürgermeister O´Swald II was the world's largest manned lightship, the last lightship at position Elbe 1. In the picture on a visit to [[Ystad 12 July 2017.]] A lightvessel, or lightship, is a ship that acts as a lighthouse in areas deemed unsuitable for proper lighthouse construction. Although some records exist of fire beacons being placed on ships in Roman

automatic tracking system that uses transceivers on ships and is used by vessel traffic services

thumb|right|The AN/APN-4 was an airborne LORAN receiver used into the 1960s. It was built in two parts to match the UK's Gee system, and could be swapped with Gee in a few minutes. LORAN (Long Range Navigation) was a hyperbolic radio navigation system developed in the United States during World War II. It was similar to the UK's Gee system, but operated at lower frequencies in order to provide an improved range up to 1,500 miles (2,400 km) with an accuracy of tens of miles. It was first used for ship convoys crossing the Atlantic Ocean, and then by long-range patrol aircraft, but found it

radio navigation technology used in aviation

thumb|right|Two roof-mounted diaphone foghorns at [[Split Rock Lighthouse]] A foghorn or fog signal is a device that uses sound to warn vehicles of navigational hazards such as rocky coastlines, or boats of the presence of other vessels, in foggy conditions. The term is most often used in relation to marine transport. When visual navigation aids such as lighthouses are obscured, foghorns provide an audible warning of rock outcrops, shoals, headlands, or other dangers to shipping.

navigation rules to be followed by ships and other vessels at sea to prevent collisions between two or more vessels

measurement of the direction from which a received signal was transmitted

device which measures altitude above the terrain presently beneath an aircraft or spacecraft

thumb|right|A NAVTEX receiver prints an incoming message thumb|right|NAVTEX message for the Baltic Sea

system that enhances the accuracy of GPS receivers

geographic information system used for nautical navigation that complies with International Maritime Organization (IMO) regulations as an alternative to paper nautical charts

transmitter-receiver associated with a fixed navigational mark

maritime traffic control system for given body of water

types of codes used to identify air navigation and weather stations

Piloting or pilotage is the process of navigating on water or in the air using fixed points of reference on the sea or on land, usually with reference to a nautical chart or aeronautical chart to obtain a fix of the position of the vessel or aircraft with respect to a desired course or location. Horizontal fixes of position from known reference points may be obtained by sight or by radar. Vertical position may be obtained by depth sounder to determine depth of the water body below a vessel or by altimeter to determine an aircraft's altitude, from which its distance above the ground can be dedu

thumb|293x293px|An example of an overworld in the Platform game|platformer [[SuperTux (2004)]]

thumb|right|Daymark on St Martin's, Isles of Scilly thumb|Triangular daymark in the marina of [[Ystad, 2021]] thumb|upright|Scharhörnbake|Scharhörn daymark in 1898

navigational instrument

aircraft guidance system

marine or aircraft radio-navigation instrument

Radiofacsimile, radiofax or HF fax is an analogue mode for transmitting grayscale images via high frequency (HF) radio waves. It was the predecessor to slow-scan television (SSTV). It was the primary method of sending photographs from remote sites (especially islands) from the 1930s to the early 1970s. It is still in limited use for transmitting weather charts and information to ships at sea.

navigation technique employing X-ray signals emitted by pulsars

light beacons used for watercraft navigation in a shallow or dangerous channel or as position fixing

heritage-listed former penal site and defensive facility in Sydney Harbour, Australia

marker that assists a traveler in navigation

digital nautical map for navigation on water

navigation system

OpenCPN (Open Chart Plotter Navigator) is a free software maritime chart plotter and navigation software for use underway or as a planning tool. Developed by a team of active sailors and tested in real world conditions, it has multiple supported chart formats and a variety of data inputs.

worldwide system of aeronautical fixed circuits

A chartplotter is a device used in marine navigation that integrates GPS data with an electronic navigational chart (ENC). right|thumb|A Raymarine chartplotter

microwave band RADAR used in maritime applications

publication describing lighthouses and other aids to maritime navigation