2010-08-Castletownbere Directional Light-Increase in Range

2010-08-Castletownbere Directional Light-Increase in Range

Notices to Mariners

Castletownbere Directional Light - Increase in Range of Light

08 - 2010

Issue Date: Friday 23 July 2010

Aid: Castletownbere Directional Light

Area: South West Coast

The Commissioners of Irish Lights hereby give notice that on or about 17 November 2010, or as soon thereafter as circumstances permit, a new directional light with increased range will be installed in a new structure. The existing rear day mark will be discontinued at the same time.

  Existing Light   New Light

51° 38.792'N

WGS 84

51° 38.779'N


09° 54.312'W


09° 54.315'W

Character Dir Oc. W R G 5 s. (ec 1.0)   Dir Oc. W R G 5s. (ec 1.0)



G 020.5°-024°, (3.5°)


G 020.5°-24°, (3.5°)


W 024°-024.5°, (0.5°)


W 024°-024.5°, (0.5°)


R 024.5°-027.5°, (3.0°)


R 024.5°-028°, (3.5°)

Range Day Night Day Night
  G 0.5NM G 11NM G 2NM G 12NM
  W 1.0NM W 14NM W 4NM W 15NM
  R 0.5NM R 11NM R 2NM R 12NM
Daymark White Hut Red Stripe White Hut Red Stripe
Height 4m above water 7m above water

All other details remain unchanged.

Radio Navigational Warnings will be issued when the above changes take place.


Dr. S.G.R. Ruttle, Chief Executive.