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Fort of Cavalo Lighthouse

Coordinates: 38°26′05″N 9°06′59″W / 38.43472°N 9.11639°W / 38.43472; -9.11639
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Fort of Cavalo Lighthouse
Farol do Forte do Cavalo
Map
LocationFort of San Teodósio, Sesimbra, Portugal
Coordinates38°26′05″N 9°06′59″W / 38.43472°N 9.11639°W / 38.43472; -9.11639
Tower
Constructed1895-6
Constructioncast iron Edit this on Wikidata
Automated1983
Height7 metres (23 ft)
OperatorPortuguese Navy
HeritageImmovable Cultural Heritage of Public Interest Edit this on Wikidata
Light
Focal height35 m (115 ft) Edit this on Wikidata
LensLED Optics
Range14 nautical miles
CharacteristicOc W 5s

The Fort of Cavalo Lighthouse is located in the Fort of São Teodósio da Ponta do Cavalo, on the western edge of Sesimbra, in the Setúbal District of Portugal. It started operations in 1896.[1][2][3]

History

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Work on installing the lighthouse and lodgings for the lighthouse keepers on the upper battery of the fort began on 12 November 1895. It began to operate on 15 September 1896 with a fixed red light beacon using a 6th-order dioptric-catadioptric Fresnel lens. The tower is cylindrical and made of iron, with vertical reinforcing strips and was originally painted white. It is 7 metres high and the light is at an altitude of 35 metres.[4][5][6]

In the context of World War I (1914-1918), the light was not used between 1916 and 1918. In 1927 the light was modified to a fixed white light, with regular occultations. For this purpose a mechanical clockwork device was installed. In 1953 the lighthouse began to use gas to fuel the light, with acetylene gas being introduced in 1958. In 1959 the tower was painted its present red colour. The lighthouse was electrified in 1972 with a mains supply and remodelled in 1983 to use 12V/40W halogen lamps. It now has a fifth-order Fresnel reflective dioptric lens, with a focal length of 187.5 millimetres and a range of 14 nautical miles.[4][5][6]

On 14 February 1940 the Ministry of War handed over the fort of S. Teodósio and adjacent land to the Ministry of Finance. At the same time the Ministry of Finance handed over the lighthouse and keeper’s accommodation to the Ministry of the Navy.[4]

See also

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References

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  1. ^ "ARLHS World List of Lights (WLOL)". Identification Codes. Merchantville, New Jersey: Amateur Radio Lighthouse Society/The Weidner Publishing Group. 2003. Retrieved 23 May 2019.
  2. ^ "Forte do Cavalo". Sesimbra Cultural. Archived from the original on 23 May 2019. Retrieved 23 May 2019.
  3. ^ "Admiralty Digital List of Lights". Taunton, Somerset, England: United Kingdom Hydrographic Office. 2019.
  4. ^ a b c "Farol do Forte Cavalo". Autoridade Marítima Nacional. Retrieved 23 May 2019.
  5. ^ a b Da Silva, Teixeira. "Farol do Forte do Cavalo". Farol da Nossa Terra. Archived from the original on 23 May 2019. Retrieved 23 May 2019.
  6. ^ a b "Forte do Cavalo / Forte de São Teodósio / Farol do Forte do Cavalo". SIPA: Sistema de Informação para o Património Arquitetónico. Retrieved 23 May 2019.
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