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The acoustic mirror on Namey Hill is a First World War sound detection device, part of a network of such installations constructed along the north-east coast of England to provide early warning of enemy aircraft and naval activity. Dating to the later stages of the war, the structure exemplifies the technological innovations developed in response to aerial bombardment and the threat of enemy approach. The monument consists of a concrete parabolic reflector designed to focus sound waves, allowing operators stationed at the site to detect approaching aircraft at considerable distance before visual observation was possible. Such acoustic mirrors represented a significant advance in air defence technology during the First World War period, though they were largely superseded by more effective detection methods in subsequent decades.
First World War early warning acoustic mirror on Namey Hill, 570m north of Carley Hill Cricket Ground is a scheduled monument protected by Historic England under reference 1020325. View the official record →
The acoustic mirror on Namey Hill is a First World War sound detection device, part of a network of such installations constructed along the north-east coast of England to provide early warning of enemy aircraft and naval activity. It is designated a Scheduled Ancient Monument by Historic England (NHLE) under reference 1020325.
First World War early warning acoustic mirror on Namey Hill, 570m north of Carley Hill Cricket Ground is a Scheduled Ancient Monument, legally protected by Historic England (NHLE) — the body responsible for designating and safeguarding heritage sites in England. The official designation reference is 1020325.
Several scheduled monuments lie within 10 km, including Monkwearmouth Anglo-Saxon monastery and medieval priory (2.2 km), Hylton Castle: a medieval fortified house, chapel, 17th and 18th century country houses and associated gardens (3.2 km), Lizard Lane Heavy Anti-Aircraft Battery (4.2 km).
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Research the area around First World War early warning acoustic mirror on Namey Hill, 570m north of Carley Hill Cricket Ground