Berry Head Lighthouse Explained

Berry Head Lighthouse
Location:Brixham
Devon
England
Coordinates:50.3996°N -3.4834°W
Yearbuilt:1906
Automated:1921
Shape:cylindrical lantern with dome attached to equipment building
Marking:white lantern and dome
Height:5m (16feet)
Focalheight:58m (190feet)
Lens:500 mm 3rd order rotating optic (original), LED (current)
Range:18nmi
Characteristic:Fl (2) W 15s.
Managingagent:Trinity House[1] [2]

Berry Head Lighthouse is an active lighthouse, located at the end of Berry Head near Brixham in Devon, which has been in operation since 4 May 1906.[3] Berry Head is reputedly the shortest lighthouse in Great Britain, but also one of the highest, being only tall, but above mean sea level. It was also said to be the deepest because the optic was originally turned by a weight falling down a deep shaft.

History

The lighthouse was designed and built for Trinity House by its chief engineer Thomas Matthews. When first lit, the incandescent lamp was fuelled by oil gas (which was purchased from the Great Western Railway at Exeter and stored in large external tanks on site).[4] The lamp was placed within a revolving third-order dioptric optic, which gave a double white flash every 15 seconds.[5] It had a range of . Berry Head was classed as an unwatched light; it was managed by an attendant, who brought it into service each evening. In addition, the clockwork mechanism which turned the optic required regular winding.[6]

In 1921 the lighthouse was converted by the AGA company to run on acetylene. A triple-cluster open-flame burner was installed,[7] along with an acetylene-powered drive to turn the lens,[8] and a Dalen sun valve (which automatically brought the light into operation when required). Since 1994 the lighthouse has run on mains electricity.

In 2019 the optic and lamp were removed and replaced with a pair of self-contained LED lanterns (one serving as the main light, the other as a standby); the old characteristic was retained. The installation was the first application by Trinity House of its so-called 'simple lighthouse scheme', intended to be extended to all other shore-based mains-powered lighthouses, except those with more complex display requirements (e.g. provision of a sector light).[9]

See also

Further reading

External links


Notes and References

  1. 29 April 2016.
  2. https://www.trinityhouse.co.uk/lighthouses-and-lightvessels/berry-head-lighthouse Berry Head Lighthouse
  3. https://www.thegazette.co.uk/London/issue/27914/page/3490 London Gazette, Issue: 27914, Page: 3490, 18 May 1906.
  4. Royal Commission on Lighthouse Administration . Parliamentary Papers . 1908 . 49 . 79, 325.
  5. Web site: Berry Head - Gallery . Trinity House . 4 May 2010 . dead . https://web.archive.org/web/20110507040913/http://www.trinityhouse.co.uk/lighthouses/lighthouse_list/berry_head.html . 7 May 2011 . dmy-all .
  6. Book: Wilkinson . David . Boyle . Martin . Lighthouses . 2001 . Frith Book Company Ltd . Salisbury, Wilts. . 19.
  7. Book: Renton . Alan . Lost Sounds: The Story of Coast Fog Signals . 2001 . Whittles . Caithness, Scotland . 11.
  8. Web site: Berry Head; Forts, Lighthouse and House . https://web.archive.org/web/20061012094011/http://www.torbytes.co.uk/op/tm7/lv2/item1400.htm . dead . 12 October 2006 . Torbytes . Torbay Council . 4 May 2010 . Pike . John .
  9. Web site: Trinity House completes Berry Head Lighthouse update . Trinity House . 27 December 2019.