English: The Royal Navy during the Second World War
Sea forts in the Thames Estuary: The fort in position and ready for action. Air is still seen escaping from the
sea cocks as further consolidating water ballast enters the pontoon base. One of the forts was actually in action half an hour after being put into position. These secret forts of the Thames Estuary were an effective defence against attacks by sea and air on the estuary.
Visible on the very top of the fort is a Searchlight Control radar, a medium-accuracy system used to help aim a searchlight which would then be used to illuminate the target for conventional optical aiming. The large guns on either side of the fort are 3.7-inch AA. Just left of center, at the "back" of the fort from this position, is a Bofors 40mm gun. The barrel of a second Bofors can be made out just right of center.
Date
between 1939 and 1945
date QS:P571,+1950-00-00T00:00:00Z/7,P1319,+1939-00-00T00:00:00Z/9,P1326,+1945-00-00T00:00:00Z/9
This image was created and released by the Imperial War Museum on the
IWM Non Commercial Licence. Photographs taken, or artworks created, by a member of the forces during their active service duties are covered by Crown Copyright provisions. Faithful reproductions may be reused under that licence, which is considered expired 50 years after their creation.
Part of
InfoField
Admiralty Official Collection
Subjects
InfoField
Associated themes
Royal Navy 1939-1945
Associated keywords
Defence, construction
Category
InfoField
photographs
Image Sorted
InfoField
yes
Licensing
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Information
Captions
Photograph of a naval fort of type Maunsell (c1940).
{{Information |description = {{en|''The Royal Navy during the Second World War''<br/> Sea forts in the Thames Estuary: The fort in position and ready for action. Air is still seen escaping from the sea cocks as further consolidating water ballast enter...
File usage
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