Ailsa Craig Lighthouse

The Ailsa Craig Lighthouse, is an active 19th century lighthouse located on Ailsa Craig, an island in the Firth of Clyde, just offshore from Girvan, South Ayrshire, Scotland.

Ailsa Craig Lighthouse

Ailsa Craig Lighthouse
Location	Ailsa Craig Firth of Clyde Scotland
OS grid	NX 0252199706
Coordinates	55.251898°N 5.108413°W / 55.251898; -5.108413
Tower
Constructed	1886
Built by	Thomas Stevenson, David Alan Stevenson
Construction	masonry tower
Automated	1990
Height	11 metres (36 ft)
Shape	cylindrical tower with balcony and lantern attached to 1-storey keeper's house
Markings	white tower and lantern
Power source	solar power
Operator	Northern Lighthouse Board[1][2]
Heritage	category B listed building
Light
First lit	15 June 1886
Focal height	18 metres (59 ft)
Range	17 nautical miles [31 km]
Characteristic	Fl W 4s. 18m 17M AilsaCraig dome [Fl. 0.1 sec - ec. 3.9 sec] [Sector: 145° - 028°]

History

Detail of the tower

It was completed in 1886, the construction being overseen by Thomas and David Alan Stevenson.

Initially, the lighthouse used oil-burning lamps, but by 1911, these were replaced with incandescent lighting.

Fog signals were discontinued in 1987. Then, in 1990, the lighthouse was automated, and a refurbishment took place in 2001, when it was converted to run on solar power.

Ailsa Craig is also known as "Paddy's Mile Stone" as it lies halfway between the cities of Glasgow and Belfast. As well as being a local landmark and a well known marine navigational hazard the island is a protected bird sanctuary.

In June 2018 the former lighthouse keepers' cottages, now derelict, were placed for sale by auction.

See also

• List of Northern Lighthouse Board lighthouses
• List of lighthouses in Scotland