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The General Lighthouse Authorities of the United Kingdom and Ireland (GLAs) comprise:

The Research and Radionavigation Directorate (R&RNAV) undertakes research and development of physical and radio marine aids to navigation (AtoNs), support systems and their integration to support the GLAs' mission "to deliver a reliable, efficient and cost-effective Aids to Navigation service for the benefit and safety of all mariners".

Visual Signalling

Light source research, study of visual perception & metrology of visual AtoNs


Loran, GPS, Galileo, DGPS, GLONASS & AIS


IMO's future, digital concept for the maritime sector, to improve safety of navigation & protection of the environment

Other Projects

Noise investigation, RACONs & radar conspicuity of buoys

News From Around The World

Magical evening for the Lloyd's List Asia Awards

Fri, 21 Oct 2016 16:59:42 +0100

Taken from Lloyds List

Maersk returns to Iran after five-year hiatus

Fri, 21 Oct 2016 16:31:07 +0100

Taken from Lloyds List

Orionids meteor shower

Fri, 21 Oct 2016 00:00:00 GMT

Taken from RIN

Large scale clandestine navigation

Wed, 19 Oct 2016 00:00:00 GMT

Taken from RIN

Pelangi signs Agreement with TH

Thu, 31 Jan 2013 08:00:00 +0000

Taken from News

e-Navigation Underway

Thu, 31 Jan 2013 08:00:00 +0000

Taken from News

GNSS and Positioning for the Future (Workshop)

Wed, 31 Oct 2012 08:00:00 +0000

Taken from News

Marine AtoN Lights Calculator

Thu, 31 Mar 2011 08:00:00 +0000

Taken from News

The GLAs announce eLoran contract

Thu, 31 May 2007 08:00:00 +0000

Taken from News