Lange Jaap
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Lange Jaap
Lange Jaap Lighthouse
Den Helder - Lange Jaap - 2018.jpg
Lange Jaap
Lange Jaap is located in Netherlands
Lange Jaap
Coordinates52°57?19.74?N 4°43?35.06?E / 52.9554833°N 4.7264056°E / 52.9554833; 4.7264056Coordinates: 52°57?19.74?N 4°43?35.06?E / 52.9554833°N 4.7264056°E / 52.9554833; 4.7264056
Year first constructed1822 (first)
Year first lit1878 (current)
Constructioncast iron tower
Tower shape16-sided tapered prism with gallery, lantern and rotating antenna
Markings / patternred tower and dome, white lantern
Tower height55.5 metres (182 ft)[1]
Focal height57 metres (187 ft)
Original lens1st order Fresnel lens
Intensity5,200,000 cd
Range30 nautical miles (56 km; 35 mi)
CharacteristicFl (4) W 20s.
Admiralty numberB0858
NGA number114-9884
ARLHS numberNET-051
Netherlands numberNL-1494[2]
HeritageRijksmonument Edit this on Wikidata

Lange Jaap ("Long Jeep"), also known as Kijkduin Light or Den Helder Light, is an active lighthouse near Fort Kijkduin in Huisduinen, Netherlands. At a height of 55 metres (182 ft) it is one of the tallest "traditional lighthouses" in the world.[3] For almost a century, from 1878 to 1974, it was the tallest lighthouse in the Netherlands, until the construction of the Maasvlakte Light.

According to The Lighthouse Directory it is the tallest non-skeletal cast iron lighthouse in the world. That may be the case if the height is as specified in that source (63.5 metres (208 ft)). However, if the height is 55.5 metres (182 ft), as stated by other sources, it is the second tallest, Cikoneng Light being 58 m (190 ft).[4][5]

The site is open and accessible to visitors. Due to safety concerns, however, the tower itself has been closed to the public since 1998.


Aerial view of Lange Jaap, 2005

The first aid to navigation at the site was a simple coal-fire light from 1814, at Fort Kijkduin, a few hundred meters south of the current tower. In 1822 the construction of the first tower was completed and it was first lit on 29 October 1822. The tower was a 22 metres (72 ft)-tall, six-storey brick tower. The light consisted of 26 Argand lamps with parabolic reflectors, visible at a distance of up to 6 nautical miles (11 km; 6.9 mi). Cracks in the building foundation were repaired twice, in 1826 and 1827. In 1853 the light was replaced by an Argand lamp lens system with fixed Fresnel lens.

The construction of the second and current lighthouse started in 1877 and its first illumination was on 1 April 1878. The first lens system was a stationary lens with Argand lamps from the old tower. In 1903 this was replaced with a Barbier and F.B. rotational system, with Mercury bearings. It used incandescent kerosene and had an intensity of 1,200,000 cd. Its characteristic was 2 flashes every 10s and was visible for "20 English miles".

In 1912 an improved pharoline incandescent light was installed. The light was electrified in 1924 and a Brandaris 80V 50A lamp was fitted. In 1940, during World War II, this light system was destroyed. During the war the lighthouse was painted in camouflage-colours. An emergency light was installed in 1945, with an intensity of 62,000 cd. On September 2, 1949 the current 920mm 1st order Fresnel lens was installed.

In 1988 the site was listed as a Rijksmonument. The cupola and lantern pane were replaced in 1992; the old shell is displayed outdoors in the royal dockyard of Willemsoord in Den Helder. In 1998 the lighthouse was closed to the public due to cracks on the cast-iron floors. Although it was refurbished in 1999 and a new coat of paint was applied, as of 2002 it is unlikely that the tower will be reopened, especially due to more stringent safety regulations introduced after the Volendam café disaster and the formation of the Dutch Safety Board.[6]


The 17-storey 284-step tower was designed by Quirinus Harder and prefabricated by Penn & Bauduin in Dordrecht. It was constructed from 1,088 iron plate and 21,446 nuts and bolts.

See also


  1. ^ According to List of Lights and Vuurtoren in Nederland. The Lighthouse Directory has 63.5 metres (208 ft).
  2. ^ Rowlett, Russ. "Lighthouses of Northern Netherlands". The Lighthouse Directory. University of North Carolina at Chapel Hill. Retrieved 2016.
  3. ^ Rowlett, Russ. "The Tallest Lighthouses". The Lighthouse Directory. University of North Carolina at Chapel Hill.
  4. ^ List of Lights, Pub. 112: Western Pacific and Indian Oceans Including the Persian Gulf and Red Sea (PDF). List of Lights. United States National Geospatial-Intelligence Agency. 2009. p. 358.
  5. ^ Rowlett, Russ. "Lighthouses of Indonesia: Java". The Lighthouse Directory. University of North Carolina at Chapel Hill.
  6. ^ "Openstelling Helderse vuurtoren onwaarschijnlijk" [Opening Helder Lighthouse unlikely]. (in Dutch). 29 September 2002. Retrieved 2010.

  This article uses material from the Wikipedia page available here. It is released under the Creative Commons Attribution-Share-Alike License 3.0.



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