Lighthouse Ar Men in 2011
|Location||Off Île de Sein, Brittany, France|
|Year first constructed||1867|
|Year first lit||1881|
|Tower shape||cylindrical tower with balcony and lantern enclose keeper's quarter|
|Markings / pattern||white upper tower, unpainted lower tower and balcony, black lantern|
|Tower height||32 m (105 ft)|
|Focal height||37 m (121 ft)|
|Range||23.5 nautical miles (43.5 km; 27.0 mi)|
|Characteristic||Fl (3) W 20s|
|Managing agent||Marine Nationale|
|Heritage||monument historique classé|
Ar Men is one of the best known lighthouses because of its isolated situation and the considerable difficulties its construction has presented, and the danger in evacuating its personnel. Considered as one of the most challenging workplaces by the community of lighthouse keepers, it has been named "The Hell of Hells".
In 1825, the need for a light built on one of the reefs of the Chaussee de Sein was already recognized, but it was thought impracticable to build. A commission was appointed in 1860 to look at the possibility of building a light, and after six years reported that a lighthouse should be constructed on the Ar Men. Despite the estimated 105 m2 (1,130 sq ft) of rock being uncovered at low water, work began in 1867. In the first year of work, workmen were able to land on the rock on only seven occasions and could spend a total of just eight hours drilling holes for the foundation.
- Hours worked on the Ar Man lighthouse
By 1879 the height of the tower was 33.5 metres (110 ft).
The light was automated and electrified on 10 April 1990, with a 250 watt halogen lamp. Its signal is three white flashes every twenty seconds, with an accompanying signal of three sounds every sixty seconds.
- Geographic coordinates obtained from World Lighthouse On The Air (consult the list).
- Rowlett, Russ. "Lighthouses of Brittany: Southern Finistère". The Lighthouse Directory. University of North Carolina at Chapel Hill. Retrieved January 21, 2016.
- "The French "Wolf Rock Lighthouse" Off The Land's End Of Brittany". The Cornishman (59). 28 August 1879. p. 7.