Location | Nab Rocks, near the Isle of Wight, England |
---|---|
Coordinates | 50°40′03″N 0°57′04″W / 50.66749733°N 0.951162862°W[1] |
Tower | |
Constructed | 1918 towed into position 1920 |
Construction | Steel and concrete |
Automated | 1983 |
Height | 17 m (56 ft)[2] |
Shape | Broad cylindrical tower faced with reinforced concrete |
Markings | Unpainted tower, white light |
Operator | Trinity House[3] |
Fog signal | 1 blast every 30s. (range 2 nmi (3.7 km)) |
Racon | T |
Light | |
First lit | 1920 |
Focal height | 17 m (56 ft) |
Light source | Vega LED lantern |
Intensity | 2,850 candela[2] |
Range | 12 nmi (22 km) |
Characteristic | Fl W 10s. |
The Nab Tower is a tower originally planned for anti-submarine protection in the English Channel in World War I. It was sunk over the Nab rocks east of the Isle of Wight to replace a lightship after the war, and is a well-known landmark for sailors as it marks the deep-water eastern entry into the Solent.