Slettringen Lighthouse ( no, Slettringen fyr) is a
coastal lighthouse
A lighthouse is a tower, building, or other type of physical structure designed to emit light from a system of lamps and lenses and to serve as a beacon for navigational aid, for maritime pilots at sea or on inland waterways.
Lighthouses mark ...
in the municipality of
Frøya in
Trøndelag county,
Norway. The
lighthouse
A lighthouse is a tower, building, or other type of physical structure designed to emit light from a system of lamps and lenses and to serve as a beacon for navigational aid, for maritime pilots at sea or on inland waterways.
Lighthouses mar ...
sits just off the coast of the village of
Titran
Titran is a village in the municipality of Frøya in Trøndelag county, Norway. It is located at the western end of the island of Frøya, about west of the villages of Hammarvika and Sistranda. The Sletringen Lighthouse is located on a sm ...
at the western tip of the large island of
Frøya. It is Norway's tallest lighthouse. The lighthouse is lit from July 21 until May 16 each year. Although south of the Arctic Circle, it is not lit during the summer due to the
white nights in
Norway. The lighthouse is also equipped with a
foghorn
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. W ...
.
The cylindrical,
cast iron tower is painted red with a white base and two horizontal white stripes around it. The tower is attached to a two-story lighthouse keeper's house. The main light sits at an elevation of above sea level. It is a white light that flashes twice every 15 seconds. A first-order
Fresnel lens has been in use since 1923. Part way up the tower, a secondary light is also located about up the side of the tower. The secondary light is a white
isophase light
A light characteristic is all of the properties that make a particular navigational light identifiable. Graphical and textual descriptions of navigational light sequences and colours are displayed on nautical charts and in Light Lists with the cha ...
that is on for two seconds and off for two seconds. The main light can be seen for in all directions and the secondary light can be seen for up to , but only from one side of the tower.
The lighthouse was built in 1899 and it was automated in 1993. The lighthouse lost power in 2008, and the power supply was out for some time.
Media gallery
Sletringen fyrstasjon (36-IMG 8785-002).jpg,
Sletringen Lighthouse Architectural drawing ground plan.png,
Sletringen Lighthouse Architectural drawing.png,
Sletringen, Frøya. Bygningstegning - S-1602U2 111.jpg,
Titran UBT-TO-082784 01 1.jpg,
Sletringen, Frøya - S-1602U2 108.jpg,
Sletringen, Frøya - S-1602U6 1 21.jpg,
Sletringen, Frøya - S-1602U6 1 26.jpg,
Slettringen fyr UBT-TO-074162 01 1.jpg,
Sletringen, Frøya - S-1602U6 1 13.jpg,
Sletringen, Frøya - S-1602U6 1 17.jpg,
See also
*
List of lighthouses in Norway
The following is a sortable, but partial list of active and some decommissioned lighthouses along the Norwegian coastline.
The sequence number follows the convention of listing lighthouses from the coastal border in the south with Sweden around ...
*
Lighthouses in Norway
The coast of Norway is 100,915 km long and there have been a total of 212 lighthouses along it, but no more than 154 have ever been operational at the same time. The first, Lindesnes Lighthouse, opened in 1655; the newest Lighthouse, Anda, ...
References
External links
Norsk Fyrhistorisk Forening
{{authority control
Lighthouses completed in 1899
Frøya, Trøndelag
Lighthouses in Trøndelag
1899 establishments in Norway