Trwyn Du Lighthouse

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Trwyn Du Lighthouse
Penmon Point
Penmon Lighthouse off Anglesey.jpg
Trwyn Du Lighthouse
Trwyn Du Lighthouse
Location Penmon
Anglesey
Wales
United Kingdom
Coordinates 53°18′47″N4°02′26″W / 53.312994°N 4.040630°W / 53.312994; -4.040630
Tower
Constructed1838
Built by James Walker   OOjs UI icon edit-ltr-progressive.svg
Constructionstone tower
Automated1922
Height29 m (95 ft)
Shapecylindrical tower with balcony and lantern
Markingswhite and black bands tower, white lantern
OperatorTrinity House [1] [2]
HeritageGrade II* listed building  OOjs UI icon edit-ltr-progressive.svg
Fog signal bell stroke once every 30s.
Light
Focal height19 m (62 ft)
Lens1st Order catadioptric fixed
Intensity3,088 candela
Range12 nmi (22 km)
Characteristic Fl W 5s.
Trwyn Du Lighthouse TrwynDuLighthouse.jpg
Trwyn Du Lighthouse

Trwyn Du Lighthouse, also known as Penmon Lighthouse, [3] is a lighthouse between Black Point near Penmon and Ynys Seiriol, or Puffin Island, at the eastern extremity of Anglesey, marking the passage between the two islands.

Contents

History

The first lighthouse was erected in 1838, at a price of £11,589. There had been a call for a light at this location for some years by master shipmen in the nearby city of Liverpool, especially after the steamer the Rothsay Castle ran aground and broke up on nearby Lavan Sands in 1831 with 130 people losing their lives. [4]

The present Lighthouse, built 1835–1838, is 29 metres (95') tall and was designed by James Walker. It was his first sea-washed tower, and a prototype for his more ambitious tower on the Smalls.

The Lighthouse has a stepped-base designed to discourage the huge upsurge of waves that had afflicted earlier lighthouses on the site and reduce the force of the water at the bottom of the tower.

Austere vertical walls, instead of the usual graceful lines of other rock towers, are probably an economy measure. The tower has a crenellated stone parapet, in preference to iron railings on the gallery, and narrows in diameter above the half-way point. These are features used by Walker in his other lighthouse designs. The tower is distinguished by its original three black bands painted on a white background. Its also bears the words "NO PASSAGE LANDWARD" on its north and south sides.

Walker also pioneered, unsuccessfully, the use of a primitive water closet, comprising a specially designed drain exiting at the base of the tower. The stepped design of the lighthouse may have helped water exit the closet, but surges of seawater made its use difficult during heavy weather.

The light-source initially was a 4-wick Argand lamp, set within a first-order fixed catadioptric optic manufactured by Isaac Cookson & co. [5] It displayed a fixed red light.

One of the many lighthouse keepers was Joseph Steer, born in 1831 at Bovey Tracey, Devon. [6]

Modernisation

In 1922 Trwyn Du became the first Trinity House lighthouse to be automated, [7] when it was converted to unwatched acetylene operation. [8]

The lamp was converted to solar power in 1996 and the lighthouse was modernised extensively at that time.

At present the Lighthouse has a 15,000 candela light that flashes once every 5 seconds and can be seen 12 nmi (22 km) away. Additionally, a 178-kilogram (3½ cwt) fog bell sounds once every thirty seconds. [9] There was also a lifeboat station built in 1832, nearby, but this closed in 1915.

The tower has been unmanned since 1922 and is checked from Holyhead Control Centre. In August 2019 Trinity House started trials of a new fog horn, stating, "The bell is activated by an ageing electronic striker mechanism which no longer provides the assurance of reliability which is needed." [10]

Access and facilities

Penmon Point is accessible by heading east out of Beaumaris and through Llangoed. For a small fee you can go along a toll road and park very close to the lighthouse or park for free about a mile from the lighthouse. The area around Dinmor contains a cafe, shop and toilets [11] and is good for fishing.

See also

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References

  1. Rowlett, Russ. "Lighthouses of Wales". The Lighthouse Directory. University of North Carolina at Chapel Hill . Retrieved 3 June 2016.
  2. Trwyn Du Lighthouse Trinity House. Retrieved 3 June 2016
  3. "Island lighthouse paint challenge". 27 July 2008 via news.bbc.co.uk.
  4. "Find Trwyn Du, Anglesey Lighthouse near Puffin island". www.anglesey-today.com.
  5. "Lighthouse management : the report of the Royal Commissioners on Lights, Buoys, and Beacons, 1861, examined and refuted Vol. 2". 1861. p. 104.
  6. source: UK census of 1881
  7. Nicholson, Christopher (16 January 1986). "Over to Automation:The Disappearing Lighthouse Keeper". Country Life. 179: 120–122.
  8. "Trwyn Du Lighthouse". Trinity House. Retrieved 18 February 2020.
  9. "Trwyn Du on the Trinity House website". Archived from the original on 17 August 2008.
  10. "Concerns over 'horrendous' Anglesey lighthouse bell changes". BBC. BBC. 8 August 2019. Retrieved 13 August 2019.
  11. Hare, Alistair. "Trwyn Du (Black Point)". Wales Beach Guide. Archived from the original on 11 July 2018. Retrieved 11 July 2018.

Sources