Casquets lighthouses permanently discontinued from 11 May 2011. The South West Tower is topped with a helipad and there is another helipad on a flat section of the rock. The rocks are also marked using racon with a Morse letter T on radar displays. The lighthouse complex was automated in 1990 and is monitored and controlled from the Trinity House Operations Control Centre in Harwich. <br> Casquets lighthouses Casquets Lighthouse is an active lighthouse located on the rocky Les Casquets, Alderney, Channel Islands. Casquets Lighthouse is the latest in a series of three lights on Les Casquets. The first lighthouses started operation
Lighthouses in Chile Chile are provided by the "Servicio de Señalización Marítima" [Maritime Signalling Service], a department of the "Dirección de Seguridad y Operaciones Marítimas" (Dirsomar) [Directorate of Maritime Security and Operations], of the "Dirección General del Territorio Marítimo y de Marina Mercante" (Directemar) [Directorate General of the Maritime Territory and the Merchant Marine] of the Chilean Navy. In 1900, the ship "Meteoro" was built in Chile for the maintenance of lighthouses. Today, the Chilean Navy ship "George Slight" (BRS-63) is in service to serve the lighthouses. The United States' National Geospatial-Intelligence Agency (NGA) lists 650 lighthouses (and 26 Argentine lighthouses in the